DESC:FIELD OF THE INVENTION
The present invention relates to an exhaust gas separator for automobiles and more particularly to an exhaust gas separator for automobiles with gas absorber column.

BACKGROUND OF THE INVENTION
Air pollution is one of the biggest concerns that humanity is facing worldwide. Ever since the rise of industrialization, the emission of harmful gases has increased exponentially. Major contributors to air pollution are the automobiles and vehicles. Around 27% of air pollution in India is caused by automobile exhaust.
The exhaust of automobiles mainly contains gases like carbon monoxide, nitrogen oxides, hydrocarbons, suspended particulate matter, small amounts of sulphur dioxide and carbon di-oxide. These gases are extremely harmful not only for human beings but also to the environment. Carbon monoxide is an extremely harmful gas that deprives the heart, brain and other vital organs of oxygen. Carbon di-oxide is a major greenhouse gas that mainly contributes to global warming. Efforts have been made globally to reduce the carbon emission from automobiles.
German Patent DE59601567D1 discloses a catalytic converter for reducing hydrocarbon in the exhaust gases of a motor vehicle. The patent discloses a catalytic converter including a jacket tube, a honeycomb body with a metal sheet partially coated with a catalytically active coating to convert hydrocarbons in the exhaust gas. The catalytic converter disclosed in this particular patent and other similar patents known in the art work on catalysed reactions based on adsorption of molecules for converting hydrocarbons and carbon mono-oxide to the less harmful carbon di-oxide. The drawback of this type of invention is that the total amount of carbon based gases emitted remains constant. Another drawback of this type of invention is that the working range of catalytic converters is very limited and the converters are easily overheated, melted or broken. Another drawback of this type of invention is that the catalytic converters reduce engine performance and efficiency.
There is a need for a gas separator for automobiles. There is a further need of an exhaust gas separator for automobiles with gas absorber column.

SUMMARY OF THE INVENTION
The present invention describes an exhaust gas separator for automobiles positionably receiving exhaust gases of the automobile for separating and absorbing hydrocarbons, carbon mono-oxide and carbon di-oxide from the exhaust gases. The exhaust gas separator comprises an oxidizer unit oxidizing the exhaust gas being received from an inlet; and an absorber unit receiving the gas received from the oxidiser unit for absorbing the carbon di-oxide CO2 the exhaust gases and exhausting the gases to the atmosphere via an outlet.
The absorber unit of the exhaust gas separator includes a column including an air sparger positioned on the bottom end portion inside the column. The absorber unit of the exhaust gas separator for automobiles is filled with sodium hydroxide (NaOH) solution for exhaust gas neutralization. The column defines a non-porous diffusion barrier by absorbing and diffusing the solution that has absorbed the exhaust gases and the solution outside the column. The column 300 includes an air sparger 304 and a plurality of rascig rings.
The air sparger of the exhaust gas separator increases the interaction between the exhaust gas and the solution. The air sparger is positioned on the bottom end of the column. The rascig rings are randomly positioned inside the column. The rascig rings are made from ceramic, metal or glass material.
The column of the exhaust gas separator includes a hollow cylindrical construction composed of materials of ceramic, zeolite, cellulose, polytetra fluro ethylene, or a composite of these materials. The concentration level of the basic NaOH solution in the column is consistent for absorption of carbon in the exhaust due to concentration difference between the solutions inside the column compared to the pure solution outside. The arrangement of the column and sparger within the absorber unit provides for the regeneration for the absorbent (NaOH).
The present invention further describes a process for separating and absorbing the hydrocarbons, carbon mono-oxide and carbon di-oxide from the exhaust gases by the exhaust gas separator with a gas absorber column. The process includes oxidizing the exhaust gases to increase their re-activity; bubbling of gas with sparger, while entering in the central path of column; passing the gas into the column filled full of absorbent within the absorber unit; restricting the gas to pass radially through column, due pressure threshold, advantageously trapping the gas flow within the column avoiding polluting the whole absorber unit; reacting the gases with absorbent, due to bubbling from sparger and surface interaction with rascig rings; absorbing or dissolving the carbon based gases into the absorbent; allowing the free pathway upwards for treated / reacted gas; allowing the diffusion of treated absorbent within column to the absorber unit; and allowing the diffusion of untreated absorbent of absorber unit into column.

BRIEF DESCRIPTION OF DRAWINGS
The objectives and advantages of the present invention will become apparent from the following description read in accordance with the accompanying drawings wherein
FIG. 1 shows an exhaust gas separator for automobiles connected to an engine of an automobile in accordance with a preferred embodiment of the present invention;
FIG. 2 shows a front perspective of the exhaust gas separator for automobiles 100 of FIG.1;
FIG. 3 shows a sectional view of the exhaust gas separator for automobiles 100 of FIG. 1;
FIG. 4 shows a sectional view of the column of the exhaust gas separator for automobiles 100 of FIG. 1; and
FIG. 5 shows a process flow diagram of the exhaust gas separator for automobiles 100 of FIG. 1 in accordance with the present invention.

DETAILED DESCRIPTION OF THE INVENTION
The invention described herein is explained using specific exemplary details for better understanding. However, the invention disclosed can be worked on by a person skilled in the art without the use of these specific details.
References in the specification to "one embodiment" or "an embodiment" means that particular feature, structure, characteristic, or function described in connection with the embodiment is included in at least one embodiment of the invention. The appearances of the phrase “in one embodiment” in various places in the specification are not necessarily all referring to the same embodiment.
References in the specification to “preferred embodiment” means that a particular feature, structure, characteristic, or function described in detail thereby omitting known constructions and functions for clear description of the present invention.
The foregoing description of specific embodiments of the present invention has been presented for purposes of illustration and description. They are not intended to be exhaustive or to limit the present invention to the precise forms disclosed, and obviously many modifications and variations are possible in light of the above teaching.
Referring to FIG. 1, an exhaust gas separator for automobiles 100 in a preferred embodiment of the present invention is described. In accordance with the present invention, the exhaust gas separator for automobiles 100 is preferably positioned between an automobile engine 104 and exhaust of the automobile. The exhaust gas separator for automobiles 100 receives exhaust gases from the engine 104. The exhaust gas separator for automobiles 100 exhausts the gases after separation preferably to the atmosphere.
Now referring to FIG. 2, the exhaust gas separator for automobiles 100 includes an inlet 204 that is connected to the automobile engine 104 and an outlet 208 that releases the gases to the atmosphere. The exhaust gas separator for automobiles 100 also includes an oxidizer unit 212 and an absorber unit 216. The exhaust gas separator for automobiles 100 receives the exhaust gas from the automobile engine 104 via the inlet 204, this exhaust gas is then oxidized in the oxidizer unit 212. The oxidized exhaust gas then passes through the absorber unit 216 where the Carbon di-oxide CO2 is absorbed from the exhaust gases by the absorber unit 216. Then the exhaust gas exhausted to the atmosphere via the outlet 208.
Now referring to FIG. 3, a sectional view of the exhaust gas separator for automobiles 100 is shown. The oxidizer unit 212 is a cylindrical construction with an inlet at the top that receives gas from the inlet 204 and an outlet at the bottom that passes the gas after oxidization to the absorber unit 216 via pipe. It is to be noted that pipe is preferably a metal pipe.
The absorber unit 216 is a cylindrical construction with an inlet on bottom end and an outlet on top end. The absorber unit 216 includes a column 300 that includes an air sparger 304 that is positioned on the bottom end portion inside the column 300. It is to be noted that the absorber unit 216 is completely filled with a solution. The solution is preferably a sodium hydroxide (NaOH) solution for exhaust gas neutralization.
Referring to FIG. 4, a sectional view of the column 300 of the absorber unit 216 is shown. The column 300 is preferably a hollow cylindrical construction made up of predefined materials such as ceramic, zeolite, cellulose, polytetra fluro ethylene, a composite of these materials and the like. The column 300 includes the air sparger 304 and a plurality of rascig rings 400. The air sparger 304 is positioned on the bottom end of the column 300. The rascig rings 400 are positioned randomly inside the column 300. The rascig rings 400 are generally made from ceramic, metal or glass. The rascig rings 300 are advantageously used to increase the interaction between the exhaust gas and the solution.
Now referring to FIG. 5, a process flow diagram of the exhaust gas separator for automobiles 100 is shown. The exhaust gas separator for automobiles 100 receives exhaust gas from the automobile engine 104 via the inlet 204. This exhaust gas is then passed to the oxidizer unit 212. The oxidizer unit 212 oxidizes the exhaust gases especially the carbon monoxide (CO) to carbon di-oxide (CO2). After oxidization, the gas is then passed to the absorber unit 216. The air sparger 304 creates bubble flow of the exhaust gases in the column 300. The column 300 entraps the exhaust gases and the rascig rings 400 provide a surface for reaction of the exhaust gases and the solution. The exhaust gases that are acidic in nature are absorbed by the basic solution (NaOH) present inside the column 300. The hydrocarbons (HC), carbon monoxide (CO) and carbon di-oxide (CO2) in the exhaust gases react with the sodium hydroxide (NaOH) solution. Due to the nature of this reaction, the carbon based gases in the exhaust gases are absorbed by the solution. The remainder of the carbon free exhaust gas is exhausted.
It is to be noted that, the column 300 acts as a non-porous diffusion barrier by absorbing and diffusing the solution that has absorbed the exhaust gases and the solution outside the column 300. Due to concentration difference between the solutions inside the column 300 compared to the pure solution outside, diffusion takes place due to the membrane keeping the concentration level of the basic NaOH solution consistent for absorption of carbons in the exhaust.
In the preferred embodiment of the present invention, the oxidizer unit 212 has an outer diameter of 100 mm, inner diameter of 73 mm and length of 55mm. Similarly, the absorber unit 216 has an outer diameter of 182 mm, an inner diameter of 150mm and length of 255 mm. The column 300 of the absorber unit 216 has outer diameter of 67 mm, inner diameter of 55 mm and length of 250 mm.
Now, a process for separating and absorbing the hydrocarbons, carbon mono-oxide and carbon di-oxide from the exhaust gases by the exhaust gas separator with a gas absorber column is disclosed. The process includes the steps of:
a) oxidizing the exhaust gases to increase their re-activity;
b) bubbling of gas with sparger 304, while entering in the central path of column 300;
c) passing the gas into the column 300 filled full of absorbent within the absorber unit 216;
d) restricting the gas to pass radially through column 300, due pressure threshold, advantageously trapping the gas flow within the column and not polluting the whole absorber unit 216;
e) reacting the gases with absorbent, due to bubbling from sparger 304 and surface interaction with rascig rings 400;
f) absorbing or dissolving the carbon based gases into the absorbent;
g) allowing the free pathway upwards for treated / reacted gas;
h) allowing the diffusion of treated absorbent within column 300 to the absorber unit 216; and
i) allowing the diffusion of untreated absorbent of absorber unit 216 into column 300.
Now referring to FIG. 1-5 in operation, the exhaust gas separator for automobiles 100 receives exhaust gas from the automobile engine 104 via the inlet 204. Then, the exhaust gas is passed to the oxidizer unit 212 that oxidizes the exhaust gas. After oxidizing, the exhaust gas is passed to the column 300 of the absorber unit 216. The air sparger 304 creates bubble flow of the exhaust gases in the column 300. The exhaust gases react with the solution present inside the column 300. The hydrocarbons (HC), carbon monoxide (CO) and carbon di-oxide (CO2) are absorbed by the basic solution. The solution mixed with the carbon based gases is absorbed and diffused by the membrane column 300 keeping the concentration levels of the solution inside of the column 300 consistent. The remaindered of the gases are exhausted to the atmosphere via the outlet 208.
The exhaust gas separator for automobiles 100 advantageously separates and absorbs hydrocarbons, carbon mono-oxide and carbon di-oxide from the exhaust gases. The exhaust gas separator for automobiles 100 advantageously reduces greenhouse and harmful gas emissions from an automobile. The arrangement of the column 300 and sparger 304 within the absorber unit 216 provides an advantage of regeneration for the absorbent (NaOH). The exhaust gas separator for automobiles 100 advantageously uses absorption instead of adsorption for better efficiency and working temperature ranges. The exhaust gas separator for automobiles 100 is advantageously environmental friendly.
The embodiments were chosen and described in order to best explain the principles of the present invention and its practical application, to thereby enable others, skilled in the art to best utilize the present invention and various embodiments with various modifications as are suited to the particular use contemplated.
It is understood that various omission and substitutions of equivalents are contemplated as circumstance may suggest or render expedient, but such are intended to cover the application or implementation without departing from the scope of the present invention. ,CLAIMS:We Claim:
1. An exhaust gas separator for automobiles 100 positionably receiving exhaust gases of the automobile for separating and absorbing the hydrocarbons, carbon mono-oxide and carbon di-oxide from the exhaust gases comprising:
a. an oxidizer unit 212 oxidizing the exhaust gas being received from an inlet; and
b. an absorber unit 216 receiving the gas received from the oxidiser unit 212 for absorbing the carbon di-oxide CO2, the exhaust gases and exhausting the gases to the atmosphere via an outlet 208.
2. The exhaust gas separator for automobiles 100 of claim 1, wherein the absorber unit 216 includes a column 300 including an air sparger 304 positioned on the bottom end portion inside the column 300.
3. The exhaust gas separator for automobiles 100 of claim 1, wherein the absorber unit 216 is filled with sodium hydroxide (NaOH) solution for exhaust gas neutralization.
4. The exhaust gas separator for automobiles 100 of claim 1, wherein the column 300 defining a non-porous diffusion barrier by absorbing and diffusing the solution that has absorbed the exhaust gases and the solution outside the column 300.
5. The exhaust gas separator for automobiles 100 of claim 1, wherein the column 300 including an air sparger 304 and a plurality of rascig rings 400.
6. The exhaust gas separator for automobiles 100 of claim 5, wherein the air sparger 204 increasing the interaction between the exhaust gas and the solution.
7. The exhaust gas separator for automobiles 100 of claim 5, wherein the air sparger 204 is positioned on the bottom end of the column 300.
8. The exhaust gas separator for automobiles 100 of claim 5, wherein the rascig rings 400 being randomly positioned inside the column 300.
9. The exhaust gas separator for automobiles 100 of claim 7, wherein the rascig rings 400 being made from ceramic, metal or glass material.
10. The exhaust gas separator for automobiles 100 of claim 1, wherein the column 300 including hollow cylindrical construction being made up of materials of ceramic, zeolite, cellulose, polytetra fluro ethylene, or a composite of these materials.
11. The exhaust gas separator for automobiles 100 of claim 1, wherein the concentration level of the basic NaOH solution in the column 300 being consistent for absorption of carbons in the exhaust due to concentration difference between the solutions inside the column 300 compared to the pure solution outside.
12. The exhaust gas separator for automobiles 100 of claim 2, wherein the arrangement of the column 300 and sparger 304, within the absorber unit 216 provides for the regeneration for the absorbent (NaOH).
13. A process for separating and absorbing the hydrocarbons, carbon mono-oxide and carbon di-oxide from the exhaust gases by the exhaust gas separator with a gas absorber column including the steps of:
a) oxidizing the exhaust gases to increase their re-activity;
b) bubbling of gas with sparger 304, while entering in the central path of column 300;
c) passing the gas into the column 300 filled full of absorbent within the absorber unit 216;
d) restricting the gas to pass radially through column 300, due pressure threshold, traps the gas flow within the column avoiding polluting the whole absorber unit 216;
e) reacting the gases with absorbent, due to bubbling from sparger 304 and surface interaction with rascig rings 400;
f) absorbing or dissolving the carbon based gases into the absorbent;
g) allowing the free pathway upwards for treated / reacted gas;
h) allowing the diffusion of treated absorbent within column 300 to the absorber unit 216; and
i) allowing the diffusion of untreated absorbent of absorber unit 216 into column 300.

Dated This 31st Day of July 2021
FOR SAVITRIBAI PHULE PUNE UNIVERSITY
AND MISTRY RONAK YOGESH

ANAND MAHURKAR
IN/PA-1862
(AGENT FOR APPLICANTS)