DESC:EARLIEST PRIORITY DATE:
This Application claims priority from a Provisional patent application filed in India having Patent Application No. 202041013500, filed on March 27, 2020 and titled “APPARATUS TO FACILITATE ADSORPTION AND DESORPTION OF GAS UTILIZING ADSORBENT BED”
FIELD OF INVENTION
[0001] Embodiments of a present invention relate to an apparatus for enabling adsorption and desorption process and more particularly to an apparatus to facilitate improved adsorption and desorption of gas utilizing adsorbent bed and thereby enabling improved compressed gas storage.
BACKGROUND
[0002] Certain gases such as methane or hydrogen do not liquefy at room temperature for any viable pressure. Such features hamper easy storage and transportation of such gases. High-pressure cylinders are usually used for storing such gases. Here, the high-pressure cylinder provides better storage density. But such process also faces problems like power consumption issues for high pressure compression, higher safety requirement issues, high-cost issues of cylinders and the like.
[0003] In another approach, adsorption-based storage notion is used for storing of gases like methane or hydrogen. Materials with high adsorption potential such as activated carbon (AC) or metal oxide framework (MOF) are used to adsorb the gases and achieve a comparable energy density at reduced pressure of storage. However, low thermal conductivity of the adsorbent material hinders the performance of adsorption or desorption.
[0004] Here, during filling of an adsorbent bed-based cylinder, the temperature inside the cylinder increases, since adsorption is an exothermic process and also due to Joule-Thompson effect which reduces the capacity of the adsorbent bed for retaining adsorbed gas. Similarly, during desorption process, the adsorbent bed temperature falls during decrease in pressure. Hence, the capability of the adsorbent bed to supply gas diminishes.
[0005] Effective approach would be to provide an apparatus so that temperature of the adsorbent bed is maintained; and stopped from rising during filling (adsorption) and falling during release (desorption).
[0006] Existing methods to remove heat from the surface of the cylinder are limiting since good adsorbing material, such as those described earlier, inherently are poor conductors of heat and hence limit the rate at which heat can be removed or provided to the adsorbent bed core.
[0007] Hence, there is a need for an improved apparatus to facilitate improved adsorption and desorption of gas utilizing adsorbent bed to address the aforementioned issues.
SUMMARY
[0008] In accordance with an embodiment of the present invention, an apparatus to facilitate adsorption and desorption of gas utilizing adsorbent bed is given. The apparatus includes a primary cylinder comprising adsorbent bed. The primary cylinder is configured to store a gas of pre-determined quantity by utilizing the adsorbent bed. The primary cylinder is configured to be filled and emptied via a gas filling and gas discharge port, respectively, through a first pipe. The first pipe is fluidically coupled to a first end of the primary cylinder. The apparatus also includes a secondary cylinder fluidically coupled to the first end of the primary cylinder via a second valve to receive a reflux of the gas from the primary cylinder, and a second end of the primary cylinder via a first valve to supply the gas to the primary cylinder. The secondary cylinder is configured to regulate temperature of the gas received as the reflux from the primary cylinder. The secondary cylinder is also configured to regulate the temperature of the gas during its passage from the secondary cylinder to the primary cylinder.
[0009] In accordance with another embodiment of the present invention, an additional heat exchanger is used in series with the secondary cylinder to improve heat regulation of the gas passing through the secondary cylinder. The heat exchanger cylinder is configured to regulate the gas temperature received as the reflux from the first end of the primary cylinder. A first end of the heat exchanger cylinder is fluidically coupled to a second end of the secondary cylinder via a second pipe to allow flow of the gas to the secondary cylinder after regulating the gas temperature of the reflux. A second end of the heat exchanger cylinder is further connected via the second valve to the first pipe for receiving the reflux.
[0010] In accordance with yet another embodiment of the present invention the primary cylinder further includes a disc shaped mesh fabricated using higher conducting material comprising aluminium and graphite.
[0011] In accordance with another embodiment of the present invention, a method to facilitate desorption of gas utilizing adsorbent bed is provided. The method includes determining whether pressure or temperature value within a primary cylinder is decreased during desorption of gas adsorbed to an adsorbent bed inside the primary cylinder. The method also includes regulating temperature inside the primary cylinder by allowing flow of gas from a secondary cylinder to the primary cylinder, upon determination of decrease in the pressure or temperature value within the primary cylinder. The temperature of the gas flowing from the secondary cylinder to the primary cylinder is higher than the temperature inside the primary cylinder. When most of the gas from the secondary cylinder has passed to the primary cylinder since the primary cylinder is being emptied for end use, the secondary cylinder is filled with a colder reflux received from the primary cylinder. The temperature of gas inside the secondary cylinder is again regulated and then resupplied to the primary cylinder in a cyclic fashion to regulate the temperature in the primary cylinder. The method further includes passing the gas having a temperature higher than the temperature inside primary cylinder by opening a first valve from the secondary cylinder to the primary cylinder, thereby increasing the temperature inside the primary cylinder and enabling desorption of the gas adsorbed to the adsorbent bed.
[0012] In accordance with yet another embodiment of the present invention, a method to facilitate adsorption of gas utilizing adsorbent bed is provided. The method includes determining whether pressure or temperature value within a primary cylinder is increased during an adsorption of gas on an adsorbent bed inside the primary cylinder. The method also includes regulating temperature inside the primary cylinder by allowing flow of gas from the primary cylinder to a secondary cylinder, upon determination of increase in the pressure or temperature value within the primary cylinder. The method also includes moving the gas with increased temperature during adsorption by opening a second valve for passing the gas from the primary cylinder to the secondary cylinder, thereby decreasing the temperature inside the primary cylinder and enabling adsorption at the adsorbent bed. The method further includes cyclically cooling the gas in the secondary cylinder and then resupplying to the primary cylinder to reduce the temperature of the adsorbent bed in the primary cylinder.
[0013] To further clarify the advantages and features of the present invention, a more particular description of the invention will follow by reference to specific embodiments thereof, which are illustrated in the appended figures. It is to be appreciated that these figures depict only typical embodiments of the invention and are therefore not to be considered limiting in scope. The invention will be described and explained with additional specificity and detail with the appended figures.
BRIEF DESCRIPTION OF THE DRAWINGS
The invention will be described and explained with additional specificity and detail with the accompanying figures in which:

[0001] FIG. 1 is a schematic representation of an apparatus to facilitate adsorption and desorption of gas utilizing adsorbent bed in accordance with an embodiment of the present disclosure;

[0002] FIG. 2 is a schematic representation of the apparatus including a heat exchanger to facilitate adsorption and desorption of gas utilizing adsorbent bed in accordance with an embodiment of the present disclosure;

[0003] FIG. 3 is a flow diagram representing steps of a method to facilitate desorption of gas utilizing adsorbent bed in accordance with an embodiment of the present disclosure;

[0004] FIG. 4 is a flow diagram representing steps of a method to facilitate adsorption of gas utilizing adsorbent bed in accordance with an embodiment of the present disclosure;

[0005] FIG. 5 is a graphical representation of superior gas discharge capability of the apparatus in accordance with an embodiment of the present disclosure; and

[0006] FIG. 6 is a graphical representation of superior bed thermal management using the apparatus in accordance with an embodiment of the present disclosure.

[0007] Further, those skilled in the art will appreciate that elements in the figures are illustrated for simplicity and may not have necessarily been drawn to scale. Furthermore, in terms of the construction of the device, one or more components of the device may have been represented in the figures by conventional symbols, and the figures may show only those specific details that are pertinent to understanding the embodiments of the present invention so as not to obscure the figures with details that will be readily apparent to those skilled in the art having the benefit of the description herein.

DETAILED DESCRIPTION
[0008] For the purpose of promoting an understanding of the principles of the disclosure, reference will now be made to the embodiment illustrated in the figures and specific language will be used to describe them. It will nevertheless be understood that no limitation of the scope of the disclosure is thereby intended. Such alterations and further modifications in the illustrated system, and such further applications of the principles of the disclosure as would normally occur to those skilled in the art are to be construed as being within the scope of the present disclosure.
[0009] The terms "comprises", "comprising", or any other variations thereof, are intended to cover a non-exclusive inclusion, such that a process or method that comprises a list of steps does not include only those steps but may include other steps not expressly listed or inherent to such a process or method. Similarly, one or more components, compounds, and ingredients preceded by "comprises... a" does not, without more constraints, preclude the existence of other components or compounds or ingredients or additional components. Appearances of the phrase "in an embodiment", "in another embodiment" and similar language throughout this specification may, but not necessarily do, all refer to the same embodiment.
[0010] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this disclosure belongs. The system, methods, and examples provided herein are only illustrative and not intended to be limiting.
[0011] In the following specification and the claims, reference will be made to a number of terms, which shall be defined to have the following meanings. The singular forms “a”, “an”, and “the” include plural references unless the context clearly dictates otherwise.
[0012] Embodiment of the present invention relates to an apparatus 10 to facilitate adsorption and desorption of gas utilizing adsorbent bed. The invention also relates to a method to facilitate adsorption and desorption of gas utilizing adsorbent bed.
[0014] Embodiments of the present invention will be described below in detail with reference to the accompanying figures. The working principle of the present invention for adsorption and desorption of gas is governed by mass transfer of the gas itself as an effective heat transfer medium in order to circumvent the issue of low conductivity of adsorbent material.
[0015] FIG. 1 is a schematic representation of an apparatus 10 to facilitate adsorption and desorption of gas utilizing adsorbent bed in accordance with an embodiment of the present disclosure. As used herein, the term “adsorption” refers to a process by which a solid holds molecule of a gas or liquid or solute as a thin film. As used herein, the term “desorption” refers to release of an adsorbed substance from a surface. As used herein, the term “adsorbent” is a material which will allow a liquid, gas or dissolved solid to adhere to its surface. As used herein, the term “cylinder” refers to a solid geometrical figure with straight parallel sides and a circular or oval cross section.
[0013] In an embodiment, the apparatus includes a primary cylinder 20 comprising adsorbent bed. In such an embodiment, the adsorbent bed utilizes an adsorbent material such as activated alumina, silica gel, activated carbon, metal oxide framework (MOF), molecular sieve carbon and the like. The adsorbent bed comprises variations of carbon-based material with conductivity between graphene and activated carbon.
[0014] The primary cylinder 20 is configured to store a gas of pre-determined quantity by utilizing the adsorbent bed. The stored gas includes gases having critical temperature lower than room temperature, for example, methane, hydrogen and the like. The primary cylinder 20 is configured to be filled and emptied via a gas filling and gas discharge port 30, respectively, through a first pipe 40. The first pipe 40 is fluidically coupled to a first end 100 of the primary cylinder 20. The gas filled via the gas filling and gas discharge port 30 is adsorbed by the adsorbent bed for storage purpose. As used herein, the term “pipe” refers to a tube used to convey water, gas, oil, or other fluid substances. As used herein, the term “critical temperature” refers to highest temperature at which the substance can exist as a liquid. At temperatures above the critical temperature, the substance in question (in its vapour/gaseous state) can no longer be liquified, regardless of the amount pressure applied to it.
[0015] In a further embodiment of the apparatus 10, the apparatus 10 includes a disc shaped mesh made of higher conducting material including aluminium and graphite is placed along the length of the primary cylinder 20 to improve the conductivity of the adsorbent bed. Such fabrication allows carrying heat from the centre of the adsorbent bed to the primary cylinder 20 walls during absorption or other way round during desorption. Usage of disc-based mesh or such material may further improve the performance of the apparatus 10.
[0016] In an embodiment, the apparatus 10 also includes a secondary cylinder fluidically coupled to the first end 100 of the primary cylinder 20 via a second valve 90 to receive a reflux of the gas from the primary cylinder 20, and a second end of the primary cylinder 20 via a first valve 60 to supply the gas to the primary cylinder. The secondary cylinder 50 is configured to regulate temperature of the gas received as the reflux from the primary cylinder 20. The secondary cylinder 50 is also configured to regulate the temperature of the gas during its passage from the secondary cylinder 50 to the primary cylinder 20. During desorption process, the pressure inside the primary cylinder 20 gets lower than the secondary cylinder 50, so the gas enters the primary cylinder 20 via the first valve 60. The secondary cylinder 50 is fabricated with a high conductivity material such as aluminium. In such an embodiment, the secondary cylinder 50 is configured to be kept dipped inside a liquid with high specific heat like water. It is pertinent to note that, the dipping inside water ensures the gas to be quickly regulated to normal atmospheric temperature.
[0017] The first valve 60 and the second valve 90 include a non-return valve, an electronically controlled solenoid valve, and the like. In an embodiment, the solenoid valves used as the first valve 60 and the second valve 90 are controlled by a control system for alternate opening and closing. The first valve 60 allows one-way passage of gas, that is from a first end 130 of the secondary cylinder 50 to the second end 120 of the primary cylinder 20. The pressure inside the primary cylinder 20 is higher than the secondary cylinder 50, but during the time of desorption the pressure inside the primary cylinder 20 falls along with temperature. The rate of desorption also falls. The fall in pressure causes the first valve 60 to open and carry warm gas from the secondary cylinder 50. The incoming gas warms up the adsorbent bed to improve the desorption capability. The flow of gas also provides additional supply of gas in the primary cylinder 20 and together it assists the reliable supply of gas at the gas filling and gas discharge port 30.
[0018] FIG. 2 is a schematic representation of the apparatus 10 including the heat exchanger cylinder 70 to facilitate adsorption and desorption of gas utilizing adsorbent bed in accordance with an embodiment of the present disclosure.
[0019] In further embodiment of the apparatus 10, the apparatus 10 also includes a heat exchanger cylinder 70 configured to regulate the gas temperature received as the reflux from the first end 100 of the primary cylinder 20. A first end 150 of the heat exchanger cylinder 70 is fluidically coupled to a second end 140 of the secondary cylinder 50 via a second pipe 170 to allow flow of the gas to the secondary cylinder 50 after regulating the gas temperature of the reflux. A second end 160 of the heat exchanger cylinder 70 is further connected via a second 90 valve to the first pipe 40 for receiving the reflux. In one embodiment, the heat exchanger warms the gas temperature as quickly as possible. During desorption process, as long as the pressure inside the primary cylinder 20 is higher than the pressure inside the secondary cylinder 50 (plus the pressure difference across the second valve 90), part of the gas exiting from the first end 100 of the primary cylinder 20, passes through the second valve 90 (reflux) and then through the heat exchanger 70 where its temperature is regulated and gets ultimately stored inside the secondary cylinder 50 which can later warm the adsorption bed when the temperature and pressure inside the primary cylinder 20 falls.
[0020] During desorption, once the temperature inside the primary cylinder 20 is raised due to the influx of comparatively hotter gas from the secondary cylinder 50, the pressure inside the primary cylinder 20 will rise due to increased desorption. If and when this pressure becomes more than the pressure inside the secondary cylinder 50 plus the cracking pressure of the valve 90, the valve 90 will open for filling the secondary cylinder 50 and the cycle will repeat.
[0021] In an exemplary embodiment, the secondary cylinder 50 may be fabricated to function as the heat exchanger cylinder 70 itself. In one embodiment, the primary cylinder 20, the secondary cylinder 50, and the heat exchanger cylinder 70 may be fabricated inside a single pressure vessel to make the apparatus 10 more compact. For further reduction of the cost of the apparatus 10, a single secondary cylinder may be used with a cascade of primary cylinders.
[0022] In one embodiment, when the volume of the secondary cylinder 50 or heat exchanger cylinder 70 are insufficient to heat and thereby increase the pressure in the primary cylinder 20 above the pressure in the secondary cylinder 50 plus the cracking pressure of the second valve 90, the second valve 90 will not open and the circular movement of the gas is hindered inhibiting maintenance of temperature in the adsorbent bed. As such besides the sizing of all cylinders, the cracking pressure and reseal pressure of the first valve 60 and the second valve 90 need to be chosen carefully for the system to work. The first valve 60 and the second valve 90 should have as low cracking pressure as possible and should show hysteresis with reseal pressure further lower and as low as possible. This would allow the temperature control process to continue over a larger range of configurations.
[0023] In one embodiment, the first valve 60 and the second non-return valve 90 are replaced with electronically controlled ON/OFF valves, if for any given volume, the first valve 60 and the second valve 90 don’t provide the required flow rate for thermal management. These valves should be turned ON and OFF alternatively using electronic or electrical signals in the following manner – when the first valve 60 is ON, the second valve 90 should be OFF and vice versa. Periodically repeating this process will create a circulating path for the gas and ensure good heat exchange for a large range of configurations.
[0024] In another embodiment of the present invention, the method to facilitate adsorption and desorption of gas utilizing adsorbent bed is provided.
[0025] FIG. 3 is a flow diagram 200 representing steps of the method to facilitate adsorption and desorption of gas utilizing adsorbent bed in accordance with an embodiment of the present disclosure.
[0026] The method to facilitate adsorption and desorption of gas utilizing adsorbent bed begins with determining whether pressure value within a primary cylinder 20 is decreased during a desorption of gas adsorbed to an adsorbent bed on an inner surface of the primary cylinder 20 at step 202. The primary cylinder 20 includes adsorbent bed utilizing adsorbent material such as activated alumina, silica gel, activated carbon, metal oxide framework (MOF), molecular sieve carbon and the like. The primary cylinder 20 is configured to store a gas of pre-determined quantity by utilizing the adsorbent bed.
[0027] In an embodiment, temperature inside the primary cylinder 20 is regulated by allowing flow of gas from a secondary cylinder 50 to the primary cylinder 20, upon determination of decrease in the pressure or temperature value within the primary cylinder 20 at step 204. The temperature of the gas flowing from the secondary cylinder 50 to the primary cylinder 20 is higher than the temperature inside the primary cylinder 20. The secondary cylinder 50 is filled with a reflux received from the primary cylinder 20 after temperature regulated by a heat exchanger cylinder 70 fluidically coupled to the primary cylinder 20 and the secondary cylinder 50.
[0028] In such an embodiment, the method includes passing the gas having a temperature higher than the temperature inside primary cylinder by opening a first valve 60 from the secondary cylinder 50 to the primary cylinder 20, thereby increasing the temperature inside the primary cylinder and enabling desorption of the gas adsorbed to the adsorbent bed at step 206. In such embodiment, the method steps are repeated in a cyclical manner.
[0029] In yet another embodiment of the present invention, a method to facilitate adsorption of gas utilizing adsorbent bed is provided. FIG. 4 is a flow diagram 300 representing steps of the method to facilitate adsorption of gas utilizing adsorbent bed in accordance with an embodiment of the present disclosure.
[0030] In an embodiment, the method to facilitate adsorption of gas utilizing adsorbent bed begins with determining whether pressure value within a primary cylinder 20 is increased during an adsorption of gas on an adsorbent bed on an inner surface of the primary cylinder 20 at step 302.
[0031] In an embodiment, temperature inside the primary cylinder 20 is regulated by allowing flow of gas from the primary cylinder 50 to a secondary cylinder 20, upon determination of increase in the pressure or temperature value within the primary cylinder 20 at step 304. During adsorption the temperature inside the primary cylinder 20 is higher than the temperature inside the secondary cylinder 50.
[0032] In an embodiment, the gas with increased temperature during adsorption is eliminated by opening a second valve 90 for passing the gas from the primary cylinder 20 to the secondary cylinder 50, thereby decreasing the temperature inside the primary cylinder and enabling adsorption at the adsorbent bed at step 306. The heat generated in the primary cylinder 20 during adsorption is eliminated by the secondary cylinder 50 or a heat exchanger cylinder 70 by transferring gas (having increased temperature) to the secondary cylinder 50 when temperature inside primary cylinder 20 is greater than secondary cylinder 50.
[0033] In an embodiment, gas in the secondary cylinder 50 is passed back to the primary cylinder 20 at step 308. The gas in secondary cylinder 50 is at a lower temperature as compared to the gas in the primary cylinder 20. In such embodiment, the method steps are repeated in a cyclical manner.
[0034] Superior gas discharge capability and superior bed thermal management of the apparatus 10 provided by the present invention is analysed for adsorption and desorption of gas. The advantage of using mass-exchange for the thermal management is represented in FIG. 5 and FIG. 6.
[0035] FIG. 5 is a graphical representation 300 of superior gas discharge capability of the apparatus 10 in accordance with an embodiment of the present disclosure. The FIG.5 depicts the methane gas released from a 7 kg activated carbon adsorbent bed based high pressure storage cylinder under natural circumstances against time. The two graphs compare the gas available against time for a normal adsorbent bed cylinder with the performance of the apparatus 10 provided by the present invention. It can be seen that around 50 minutes, the gas available from the normal cylinder becomes lower than 40 g/m which is low for most commercial applications while the gas available from the apparatus 10 provided by the present invention continues to supply gas reliably up to 80 minutes.
[0036] FIG. 6 is a graphical representation 400 of superior bed thermal management using the apparatus 10 in accordance with an embodiment of the present disclosure. The present invention supplies more than 90% of the gas available in the mass-exchange thermal management cylinder (the apparatus 10 provided by the present invention) for end use in a single run while normal adsorbent based cylinders were able to supply only close to 66% of their gas content in a single run. The improved performance of the apparatus 10 provided by the present invention is seen due to better thermal management of the adsorbent bed. As seen in FIG. 6, allowing the gas to pass through a heat exchanger regulates it temperature and bring it closer to atmospheric temperature. Since desorption is an endothermic process, higher temperatures allow better desorption and thus better supply of gas for end use.
[0016] The apparatus 10 provided by the present invention for assisting adsorption and desorption of gas allows thermal regulation of the adsorbent bed. The apparatus 10 allows improved compressed gas storage by improving thermal conductivity of the adsorbent bed. The apparatus 10 provides reliable supply of gas for utility at the discharge port especially by ensuring that the adsorbent bed is brought to optimal temperature faster than any currently used methods. The apparatus 10 is specifically useful to limit the adsorbent bed temperature from falling during desorption process for stationary applications although the apparatus 10 may also be adapted to maintain temperature of the bed during filling as well and for both stationary and non-stationary applications.
[0037] In the apparatus 10, usage of aluminium with adsorbent bed gives a very distinct advantage of higher conductivity and improved performance. The usage of aluminium also allows the secondary cylinder 50 to be submerged inside a liquid like water, which greatly improves heat transfer from secondary cylinder 50 to surroundings compared to a low density and lower specific heat fluid like air. The methods provided by the present invention enables improved compressed gas storage by improving thermal conductivity of the adsorbent bed.
[0038] While specific language has been used to describe the invention, any limitations arising on account of the same are not intended. As would be apparent to a person skilled in the art, various working modifications may be made to the method in order to implement the inventive concept as taught herein.

[0039] The figures and the foregoing description give examples of embodiments. Those skilled in the art will appreciate that one or more of the described elements may well be combined into a single functional element. Alternatively, certain elements may be split into multiple functional elements. Elements from one embodiment may be added to another embodiment. For example, order of processes described herein may be changed and are not limited to the manner described herein. Moreover, the actions of any flow diagram need not be implemented in the order shown; nor do all of the acts need to be necessarily performed. Also, those acts that are not dependent on other acts may be performed in parallel with the other acts. The scope of embodiments is by no means limited by these specific examples.
,CLAIMS:WE CLAIM:
1. An apparatus (10) to facilitate adsorption and desorption of gas utilizing adsorbent bed, comprising:
a primary cylinder (20) comprising adsorbent bed, wherein the primary cylinder (20) is configured to store a gas of pre-determined quantity by utilizing the adsorbent bed,
wherein the primary cylinder (20) is configured to be filled and emptied via a gas filling and gas discharge port (30), respectively, through a first pipe (40),
wherein the first pipe 40 is fluidically coupled to a first end (100) of the primary cylinder (20);
a secondary cylinder (50) fluidically coupled to
the first end (100) of the primary cylinder (20) via a second valve (90) to receive a reflux of the gas from the primary cylinder (20), and
a second end of the primary cylinder (20) via a first valve (60) to supply the gas to the primary cylinder,
wherein the secondary cylinder (50) is configured to regulate temperature of the gas received as the reflux from the primary cylinder (20), and the temperature of the gas during its passage from the secondary cylinder (50) to the primary cylinder (20).
2. The apparatus (10) as claimed in claim 1, wherein the first valve (60) allows one-way passage of the gas from the secondary cylinder (50) to the primary cylinder (20).
3. The apparatus (10) as claimed in claim 1, wherein the gas comprises gases having critical temperature lower than room temperature.
4. The apparatus (10) as claimed in claim 1, wherein the adsorbent bed comprises an adsorbent material comprising at least one of activated alumina, silica gel, activated carbon, metal oxide framework (MOF), and molecular sieve carbon.
5. The apparatus (10) as claimed in claim 1, further comprises a disc shaped mesh fabricated using higher conducting material comprising aluminium and graphite, wherein the disc shaped mesh is placed along length of the primary cylinder (20).
6. The apparatus (10) as claimed in claim 1, wherein the adsorbent bed comprises variations of carbon-based material with conductivity between graphene and activated carbon.
7. The apparatus (10) as claimed in claim 1, wherein the secondary cylinder (50) is fabricated with a high conductivity material.
8. The apparatus (10) as claimed in claim 7, wherein the secondary cylinder (50) is configured to be kept dipped inside a liquid with high specific heat.
9. The apparatus (10) as claimed in claim 1, wherein the first valve (60) and the second valve (90) comprise an electronically controlled valve and a non-return valve.
10. The apparatus (10) as claimed in claim 1, further comprises a heat exchanger cylinder (70) configured to regulate the gas temperature received as the reflux from the first end (100) of the primary cylinder (20),
wherein a first end (150) of the heat exchanger cylinder (70) is fluidically coupled to a second end (140) of the secondary cylinder (50) via a second pipe (170) to allow flow of the gas to the secondary cylinder (50) after regulating the gas temperature of the reflux; and
wherein a second end (160) of the heat exchanger cylinder (70) is further connected via the second valve (90) to the first pipe (40) for receiving the reflux.
11. A method to facilitate desorption of gas utilizing adsorbent bed comprising:
determining whether pressure value within a primary cylinder (20) is decreased during a desorption of gas adsorbed to an adsorbent bed on an inner surface of the primary cylinder (20);
regulating temperature inside the primary cylinder (20) by allowing flow of gas from a secondary cylinder (50) to the primary cylinder (20), upon determination of decrease in the pressure or temperature value within the primary cylinder (20),
wherein the temperature of the gas flowing from the secondary cylinder (50) to the primary cylinder (20) is higher than the temperature inside the primary cylinder (20),
wherein the secondary cylinder (50) is filled with a reflux received from the primary cylinder (20) after temperature regulated by a heat exchanger cylinder (70) fluidically coupled to the primary cylinder (20) and the secondary cylinder (50); and
passing the gas having a temperature higher than the temperature inside primary cylinder by opening a first valve (60) from the secondary cylinder (50) to the primary cylinder (20), thereby increasing the temperature inside the primary cylinder (20) and enabling desorption of the gas adsorbed to the adsorbent bed,
wherein the method is repeated in a cyclical manner.

12. A method to facilitate adsorption of gas utilizing adsorbent bed comprising:
determining whether pressure value within a primary cylinder (20) is increased during an adsorption of gas on an adsorbent bed on an inner surface of the primary cylinder (20);
regulating temperature inside the primary cylinder (20) by allowing flow of gas from the primary cylinder (50) to a secondary cylinder (20), upon determination of increase in the pressure or temperature value within the primary cylinder (20);
eliminating the gas with increased temperature during adsorption by opening a second valve (90) for passing the gas from the primary cylinder (20) to the secondary cylinder (50), thereby decreasing the temperature inside the primary cylinder (20) and enabling adsorption at the adsorbent bed; and
passing the gas in the secondary cylinder (50) back to the primary cylinder (20), wherein the gas in secondary cylinder (50) is at a lower temperature as compared to the gas in the primary cylinder (20),
wherein the method is repeated in a cyclical manner.

Dated this 27th day of March 2021

Vidya Bhaskar Singh Nandiyal
Patent Agent (IN/PA-2912)
Agent for the Applicant