Claims:WE CLAIM:

1. A method of improving coking potential of coal, comprising steps of:
contacting compound of Formula I with the coal; and
heating the compound of Formula I and the coal, followed by polymerization of coal to obtain coal with improved coking potential;
wherein the compound of formula I is-

Formula I
wherein,
‘Ar’ is selected from a group consisting of phenyl, quinolinyl and naphthyl;
‘R1’ is amino; and
‘n’ ranges from 10 to 25;
when ‘Ar’ is quinolinyl, R1 is absent.

2. The method as claimed in claim 1, wherein the heating is carried out at a temperature ranging from about 400 ºC to 600 ºC.

3. The method as claimed in claim 1, wherein during the heating the compound donates active hydrocarbon sites and the active hydrocarbon sites pairs with the coal leading to aromatization of coal, followed by condensation of polyaromatic hydrocarbon with the coal.

4. The method as claimed in claim 1, wherein the heating improves hydrogen evolution and swelling of the coal.

5. The method as claimed in claim 1, wherein Crucible Swelling Number (CSN) of the coal upon heating with the compound is improved by at least 20%.

6. The method as claimed in claim 1, wherein the compound is at a concentration ranging from about 0.5% to 3%.

7. The method as claimed in claim 1, wherein the compound is selected from a group comprising 8-hydroxyquinoline-formaldehyde resin (HQF), 5-amino-1-Naphthol-formaldehyde resin (ANF), and 4- aminophenol-formaldehyde resin (APF).

8. A coal comprising compound of Formula I, wherein the compound of formula I is-

Formula I
wherein,
‘Ar’ is selected from a group consisting of phenyl, quinolinyl and naphthyl;
‘R1’ is amino; and
‘n’ ranges from 10 to 25;
when ‘Ar’ is quinolinyl, R1 is absent.

9. The coal as claimed in claim 8, wherein the compound of formula I is present at a concentration ranging from about 0.5% to 3%.

10. The coal as claimed in claim 8, wherein the coal comprising the compound of Formula I has improved Crucible Swelling Number (CSN) of at least 20%.

Dated this 28th day of June 2021
Signature:
Name: Sridhar R
To: Of K&S Partners, Bangalore
The Controller of Patents Agent for the Applicant
The Patent Office, at Chennai
, Description:TECHNICAL FIELD
The present disclosure is in the field of metallurgy in general. The disclosure relates to compound of Formula I. The disclosure further relates to a process for preparing the compounds of Formula I. The disclosure furthermore relates to a method of improving coking potential of weak coal using the compounds of Formula I. The disclosure also relates to a coal with improved coking potential.

BACKGROUND
Coke serves very important purposes in a blast furnace process; it is a fuel, reducing agent and is responsible for the permeability of the charge. Because of the numerous functions of coke in blast furnace, stringent quality parameters of its physical and chemical properties are required to ensure smooth operation of high productivity in modern blast furnaces.

As the price of prime coking coal is high and the worldwide reserve of prime coking coal is low, there is a need to develop some alternate carbonaceous material, which can improve the coke quality.

Use of different additives is one of the options in order to get better quality of coke. These additives can be organic or inorganic in nature and have been used in both solid and liquid form as binders in coal briquettes or as direct additions to the coal blend. The additives are categorized in three main categories: organic, inorganic and bio by origin.

The use of blends of coals of different origin and quality is the normal practice in the coke making industry. In addition, other types of carbonaceous materials (additives) are also included in the formulation of industrial blends for coke production. Different types of additives can be introduced in the coke oven e.g. non-coking coals such as anthracite and bituminous materials like coal-tar or coal-tar pitch. Further, materials from petroleum processing have also been used as additives in coke production. Addition of binders like coal tar pitch to the coal blend, prior to stamping is expected to reduce the consumption of thermal energy and would impart the requisite strength and stability at lower moisture levels. The pitch addition improves the strength characteristics of the resultant coke made from coals having poor rheological properties. Another way of using organic binder is in the production of formed coke. Formed coke is, in fact, a reconstituted fuel based on briquetting of coal, char or lignite, whereby the particulate matter is compacted with a suitable binder under pressure. The raw or ‘green’ briquettes so obtained are subjected to oxythermal treatment (curing) and then carbonised with the purpose of reducing the volatiles. The commonly used base materials for production of briquetted coke/formed coke include coal/lignites of different properties, char from low temperature carbonization of coal, coke breeze, or even mixtures of these, and the most common bituminous binders used for making formed coke for industrial purposes are residual products from processing coal tar and petroleum.

Another organic binder used in coke making is different form of plastics. The additives of the prior art include addition of 2 wt. % plastic waste which causes a decrease in the maximum fluidity of the coal developed during thermal heating between 400°C and 500°C. The extent of the reduction being influenced by the initial value of coal fluidity, the thermal behaviour of the plastic waste itself, the composition of the pyrolysis products and, consequently, the hydrogen donor and acceptor abilities of the polymer. The polyolefin, high density polyethylene, low density polyethylene and polypropylene, which show a higher temperature of maximum volatile release, reduce coal fluidity to a lesser extent than the other polymers, polystyrene, polyethylene terephthalate, which are characterized by the presence of aromatic rings in the polymer chain and a loss of volatile matter in the coal pre-plastic stage and in the earlier stages of fluidity development. About 10 wt. % of plastic wastes polystyrene and polyethylene terephthalate, that have an aromatic group in their structure inhibits the fluidity development of a low-fluid coal, while the high-fluid coal still retains a certain degree of fluidity, except for the blend with poly ethylene terephalate (PET).

Another kind of organic binder is coking plant waste. Every year coking plants produce a considerable quantity of coal-tar sludge from the tar decanter and a carbonaceous pitch-like residue from the distillation column of benzol in the by-products plants. Sometimes, these waste materials are disposed of in large on-site waste pits. Modifications in coke oven operational conditions, including oven-heating practice, oven-charging procedure, and coal preparation techniques, have minimized the generation of tar decanter sludge, but the problem still remains. Methods for the elimination of wastes such us burial, incineration, and bio-decomposition are commonly used, but in the case of coal-tar sludge they are ineffective.

The present disclosure aims to address the above limitations of prior art for improving the properties of coal.

SUMMARY OF THE DISCLOSURE
The present disclosure relates to a compound of Formula I

Formula I
wherein,
‘Ar’ is selected from a group comprising phenyl, quinolinyl and naphthyl amino;
‘R1’ is methyl or amino; and
‘n’ ranges from 10 to 25.

The present disclosure further provides a process for preparing compound of Formula I, comprising act of:
Reacting phenol derivative with formaldehyde in presence of a base.

The present disclosure further relates to a method of improving coking potential of coal, comprising acts of:
contacting the compound of Formula I defined above with the coal; and
heating the compound of Formula I and the coal, followed by polymerization of coal to obtain coal with improved coking potential.

In an embodiment, the Crucible Swelling Number (CSN) of the coal ranges from 1 to 4.5.

In an embodiment, the compound is used at a concentration ranging from 0.5 to 3 %.

The present disclosure further relates to a coal comprising the compound of Formula I.

In an embodiment, the coal comprising the compound of Formula I, has a Crucible Swelling Number (CSN) ranging from about 1.5 to 6.5.
BRIEF DESCRIPTION OF FIGURES
In order that the disclosure may be readily understood and put into practical effect, reference will now be made to exemplary embodiments as illustrated with reference to the accompanying figures. The figures together with a detailed description below form a part of the specification, and serve to further illustrate the embodiments and explain various principles and advantages, in accordance with the present disclosure wherein:

Figure 1 (a-d) depicts FTIR graph of m-cresol-formaldehyde resin (CF), 8-hydroxyquinoline-formaldehyde resin (HQF), 5-amino-1-Naphthol-formaldehyde resin (ANF), and 4- aminophenol-formaldehyde resin (APF).
Figure 2 depicts TGA graphs of m-cresol-formaldehyde resin (CF), 8-hydroxyquinoline-formaldehyde resin (HQF), 5-amino-1-Naphthol-formaldehyde resin (ANF), and 4- aminophenol-formaldehyde resin (APF).
Figure 3 depicts standard button for CSN.
Figure 4 depicts normalized hydrogen intensity for Coal A, m-cresol-formaldehyde resin (CF), 8-hydroxyquinoline-formaldehyde resin (HQF), 5-amino-1-Naphthol-formaldehyde resin (ANF), and 4- aminophenol-formaldehyde resin (APF).
Figure 5 depicts normalized hydrogen intensity for Coal Aand m-cresol-formaldehyde resin (CF).
Figure 6 depicts normalized hydrogen intensity for Coal A and 8-hydroxyquinoline-formaldehyde resin (HQF).
Figure 7 depicts normalized hydrogen intensity for Coal A and 5-amino-1-Naphthol-formaldehyde resin (ANF).
Figure 8 depicts normalized hydrogen intensity for Coal A and 4- aminophenol-formaldehyde resin (APF).

DETAILED DESCRIPTION OF THE DISCLOSURE
As used herein, the term/phrase ‘coal’ refers to weak coal or inferior coal.

The present disclosure relates to a compound of Formula I

Formula I
wherein,
‘Ar’ is selected from a group comprising phenyl, quinolinyl and naphthyl amino;
‘R1’ is methyl or amino; and
‘n’ ranges from 10 to 25.

In an embodiment of the present disclosure, the compound of Formula I is selected from a group comprising m-cresol-formaldehyde resin (CF), 8-hydroxyquinoline-formaldehyde resin (HQF), 5-amino-1-Naphthol-formaldehyde resin (ANF), and 4- aminophenol-formaldehyde resin (APF).

In another embodiment, the compound of Formula I is thermally stable.

In another embodiment, thermal stability of the resins ranges from 300°C to 400°C.

In an embodiment, the compound of Formula I upon Fourier transform infrared (FTIR) spectroscopy illustrates presence of phenolic-OH stretches at about 3400cm-1 to 3200cm-1, peak for aliphatic -CH is present at about 2062 cm-1 and 2870 cm-1. The peaks at about 900cm-1 and about 690 cm-1 illustrates the presence of aromatic -CH bending. The aliphatic-CH bends is present at about 1439cm-1 and about 1399cm-1. Peaks at about 1630 cm-1 to 1400 cm-1 indicates presence of aromatic C-C stretches.

In an embodiment, the compound of Formula I releases hydrogen upon contacting with coal at a temperature ranging from about 400°C to 600°C.

In another embodiment, the compound of Formula I releases hydrogen upon contacting with coal at a temperature of about 400°C, about 450°C, about 500°C, about 550°C or about 600°C.

In an embodiment, the compound of Formula I improves the coking potential of inferior coal.

In an embodiment, the compound of Formula I acts as fluidity enhancer.

In an embodiment, the compound of Formula I acts as hydrogen donor and help to stabilise metaplast during co-pyrolysis with coal.

The present disclosure also relates to a process for preparing compound of Formula I, wherein the process is a single step process.

In an embodiment, the process of preparing the compound of Formula I comprises step of reacting phenol derivative with formaldehyde in presence of a base.

In another embodiment, the process of preparing the compound of Formula I comprises step of reacting excess formaldehyde with phenol derivative in presence of base catalyst in water solution to yield compound of Formula I, which is a low-molecular weight prepolymer with CH2OH groups attached to the phenol rings. The compound upon heating condenses with loss of water and formaldehyde to yield thermosetting networks of compound of Formula I.

In an embodiment of the present disclosure, the phenol derivative is selected from a group comprising m-cresol, 8-hydroxy quinoline, 5-amino-1-Naphthol, and 4-aminophenol.

In an embodiment, the base or the base catalyst employed in the process of the preparing compound of Formula I is sodium hydroxide (NaOH).

In another embodiment, the phenol derivative and the formaldehyde is at a ratio of about 1:2.

In an embodiment, the NaOH is at a concentration ranging from about 8% to 12%.

In another embodiment, the NaOH is at a concentration of about 8%, about 9%, about 10%, about 11% or about 12%.

In an embodiment, during the process of preparing, the compound of Formula I is condensed by heating to a temperature ranging from about 70°C to 90°C.

In another embodiment, during the process of preparing, the compound of Formula I is condensed by heating to a temperature of about 70°C, about 80°C or about 90°C.

In embodiment, during the process of preparing the compound of Formula I, the carbon density is increased with the increment of aromatic ring and due to positive inductive (+ I) effect of alkyl group the ortho position of the phenol derivative is more reactive.

The present disclosure further relates to a method of improving coking potential of coal by employing the compound of Formula I of the present invention.

In an embodiment, the method of improving the coking potential of coal comprises steps of:
contacting the compound of Formula I defined above with the coal; and
heating the compound of Formula I and the coal, followed by polymerization of coal to obtain coal with improved coking potential.

In an embodiment, the heating of the compound of Formula I and the coal is carried out at a temperature ranging from about 400°C to 600°C.

In an embodiment, during heating of the compound of Formula I and the coal the compound of Formula I donates its sacrificial active hydrocarbon sites which helps in pairing up with coal molecules, which in turn helps in efficient aromatization of coal followed by condensation of large polyaromatic hydrocarbon within the coal, thus improving the coking potential of the coal.

In another embodiment, during heating of the compound of Formula I and the coal, there is efficient polymerization of coal due to evolution of hydrogen from the compound of Formula I and coal at a temperature ranging from about 400°C to 600°C.

In an embodiment, during the process of improving the coking potential of coal, the hydrogen evolution is in sufficient amount which acts as a feed for the cracked molecules in the coal. The hydrogen evolution during the process is a measure of aromatization process and it reaches its maximum at the maximum fluidity temperature ranging from about 300°C to 700°C. Thus, evolution of hydrogen gas at the temperature ranging from about 300°C to 700°C showed a correlation for coke making.

In an embodiment, contacting the compound of Formula I with coal and heating to a temperature ranging from about 400°C to 600°C, improves hydrogen evolution and swelling of coal .

In an embodiment, the obtained coal with improved coking potential exhibits good thermoplastic behavior.

In an embodiment of the present disclosure, Crucible Swelling Number (CSN) of the coal ranges from 1 to 4.5.

In another embodiment, the compound is used at a concentration ranging from 0.5 to 3 %.

In an embodiment, CSN of coal after addition of compound ranges from 1.5 to 6.5.

The present disclosure further relates to a coal comprising the compound of Formula I.

In an embodiment, coal comprising the compound of Formula I has improved coking potential.

In an embodiment, the coal comprising the compound of Formula I has enhanced Crucible Swelling Number (CSN).

In an embodiment, the coal comprising the compound of Formula I has a Crucible Swelling Number (CSN) ranging from about 1.5 to 6.5.

The present disclosure is further defined in the following examples. It should be understood that these examples indicating exemplary embodiments of the present disclosure are given by way of illustration only and should not be construed to limit the scope of the disclosure. From the above discussion and these examples, one skilled in the art can ascertain the essential characteristics of this disclosure, and without departing from the spirit and scope thereof, can make various changes and modifications of the disclosure to adapt it to various uses and conditions.
EXAMPLES:

EXAMPLE 1: Preparation Of m-Cresol Formaldehyde Resin (CF)
About 1 equivalent of cresol (alkyl substitute phenol (C6H5ROH)) is reacted with about 2 equivalent formaldehyde under basic condition, by adding about 10% NaOH solution. Thereafter, the reaction mixture is heated to a temperature of about 80°C. During the reaction, carbon density is increased. Further, due to positive inductive (+I) effect of alkyl group the cresol, the ortho position will be more reactive leading to the formation of m-cresol formaldehyde resin.

EXAMPLE 2: Preparation Of 8-Hydroxyquinoline-Formaldehyde Resin (HQF)
About 1 equivalent of 8-hydroxy quinoline (substituted quinolone) is reacted with about 2 equivalents formaldehyde under basic condition, by adding about 10% of NaOH solution. Thereafter the reaction mixture is heated to a temperature of about 80°C. During the reaction, quinoline is substituted by electron donor group.

EXAMPLE 3: Preparation Of 5-Amino-1-Naphthol-Formaldehyde Resin (ANF)
About 1 equivalent of 5- amino-1-Naphthol (substituted-1-Napthol) is reacted with about 2 equivalents formaldehyde under basic condition, by adding about 10% NaOH solution. Thereafter, the reaction mixture is heated to a temperature of about 80°C. During the reaction Naphthol is substituted by electron donor group.

EXAMPLE-4: Preparation Of 4-Aminophenol-Formaldehyde Resin (APF)
About 1 equivalent of 4-mainophenol (substituted phenol) is reacted with about 2 equivalents of formaldehyde under basic condition, by adding about 10% NaOH solution. Thereafter the reaction mixture is heated to a temperature of about 80°C. During the reaction, phenol is substituted by electron donor group and it accelerates the reaction.

EXAMPLE-5: CHARACTERIZATION STUDIES OF COMPOUND OF FORMULA I
5.1 FTIR study
The synthesized compound of Formula I is characterized by Fourier transform infrared (FTIR) analysis. The infrared spectrum provides important information on molecular structure, especially the functionalities of organic compounds. FTIR spectra of coal samples are run on KBr pellets (120 mg, 1 wt. %). Spectra are recorded by co-adding 124 scans at a resolution of 2 cm-1 in a Nicolet 550 spectrometer using a DTGS detector. Software facilities are used for baseline corrections of spectra which are scaled to 1 mg sample cm-2. For quantitative measurements of spectra duplicate pellets are used. FTIR spectroscopy is applied to confirm the functional group of the synthesized compound of Formula I quantitatively.

Figure 1 (a-d) shows the FTIR spectra of compound of Formula I. Phenolic –OH stretches in the compound is present at about 3400 cm-1 to 3200 cm-1. Peak for aliphatic –CH is present at about 2062 cm-1 and about 2870 cm-1. Peaks at about 900 cm-1 and about 690 cm-1 indicates the aromatic –CH bending. Aliphatic –CH bends are present at about 1439 cm-1 and about 1399 cm-1. Peaks at about 1630 cm-1 to 1400 cm-1 indicates presence of aromatic C-C stretches. The aliphatic (Hal) and aromatic (Har) hydrogen contents are calculated from the integrated absorbance areas of the bands at about 3000 cm-1 to 2700 cm-1 and at about 900 cm-1 to 700 cm-1, respectively. The extinction coefficients used for converting integrated absorbance areas to concentration units are about 541 Abs cm-1 and about 710 Abs cm-1 mg cm-2 for the aromatic and aliphatic bands respectively of peat, lignite and subbituminous coal, and 684 and 744 Abs cm-1 mg cm-2 for bituminous coal and semi-anthracite.

5.2 TGA study
Thermogravimetric Analysis (TGA) is used to investigate thermal events and kinetics during pyrolysis of solid raw materials such as coal, plastic etc. It provides a measurement of weight loss of the sample as a function of time and temperature. It is an excellent method for realizing the chemical changes that occurred during devolatilization of coal under progressive heating. Thermogravimetric analysis of the individual coals is performed using a TGA apparatus. About 15 mg of the coal sample containing compound of Formula I is placed on a platinum cell. Then, the electric furnace is closed and purged with Ar with a flow rate of about 100 ml/min and at a pressure of about 0.5 bar. The furnace is heated from ambient temperature of about 25°C to about 1100°C with a heating rate of about 3°C /min. For MS analysis of the evolved gaseous compounds, the relevant m/z values (for instance, it is 2 for hydrogen) are fed to the software to trace out the path and intensity of the input compounds. Figure 2 presents TGA graph of compounds of Formula 1. It shows that organic polymers have good thermal stability. Figure 2 presents TGA graph of compounds of Formula 1. It shows that organic polymers have good thermal stability.

5.3 Study of coking potential of coal
For coking potential study two types of coal are selected, designated as coal A and coal B, which cannot pass through the plastic phase during pyrolysis and have poor hydrogen evolution during pyrolysis. Both are weaker coal having CSN 1 and 4, respectively. Initially, the properties of these two coals are evaluated. Then about 1 % of compound of Formula I is added to each of the coal, and then tested for coking potential like crucible swelling number. Upon addition of compound of Formula I the crucible swelling number (CSN) and hydrogen evolution of the coal are improved.
5.4 Study of Crucible Swelling Number
The standard button for CSN is depicted in Figure 3. This test is performed using standard IS 1353: 1993. In which about 1 gm of coal sample (-0.212 mm size) is taken in a translucent squat shaped silica crucible and the sample is levelled by tapping the crucible for about 12 times. The crucible is covered with a lid and heated under standard conditions by a special type of gas burner. After the test, the shape of coke button is compared with a standard chart and accordingly, the crucible swelling number (1 to 9) is assigned to the coal sample. The initial CSN of coal A and B are 1 and 4.5 respectively.

Table 1 summarizes the CSN result of coal after the addition of compound of Formula I. In each case, about 0.5% to 3 % of the compound is added. From the results obtained, the preferred amount of polymer is found to be about 1%.

Table 1: CSN value of coals with different organic polymers
Sample CSN Sample CSN
Coal A 1 Coal B 4.5
Coal A+0.5% OP1 1 Coal B+0.5% OP1 5
Coal A+1% OP1 1.5 Coal B+1% OP1 6
Coal A+ 2% OP1 1.5 Coal B+ 2% OP1 6
Coal A+3% OP1 1.5 Coal B+3% OP1 6
Coal A+0.5% OP2 1 Coal B+0.5% OP2 5.5
Coal A+1% OP2 1.5 Coal B+1% OP2 6.5
Coal A+ 2% OP2 1.5 Coal B+ 2% OP2 6.5
Coal A+3% OP2 1.5 Coal B+3% OP2 6.5
Coal A+0.5% OP3 1 Coal B+0.5% OP3 6
Coal A+1% OP3 1.5 Coal B+1% OP3 6.5
Coal A+ 2% OP3 1.5 Coal B+ 2% OP3 6.5
Coal A+3% OP3 1.5 Coal B+3% OP3 6.5
Coal A+0.5% OP4 1 Coal B+0.5% OP4 6
Coal A+1% OP4 1.5 Coal B+1% OP4 6.5
Coal A+ 2% OP4 1.5 Coal B+ 2% OP4 6.5
Coal A+3% OP4 1.5 Coal B+3% OP4 6.5

OP 1 refers to m-cresol-formaldehyde resin (CF), OP2 refers to 8-hydroxyquinoline-formaldehyde resin (HQF), OP3 refers to 5-amino-1-Naphthol-formaldehyde resin (ANF), and OP4 refers to 4- aminophenol-formaldehyde resin (APF).

5.5 Mass Spectroscopy study
Quadrupole mass spectrometer with heated capillary inlet system is used for the analysis of gases and gaseous decomposition products. QMS-430-D Aelos gas analysis system is used for the qualitative determination of gaseous components, which are emitted during the thermogravimetric analysis. A typical mass spectrometer gives the graph between ion current and temperature (°C). But as the ion currents vary from coal to coal in magnitudes, it is relatively difficult to compare some of the compounds on the above-mentioned basis. Therefore, a normalization technique is followed in order to have a fair comparison among all the coals and thereby trying to predict their coking behaviours. The normalized ion intensities are calculated according to the following equation:
Ni=100-100((I_t-I_min)/(I_max-I_min ))
where Ni is the normalized ion intensity, Imax is the maximum ion current, It is the ion current at time t, Imin is the minimum ion current. Normalized ion intensities are plotted against temperatures in order to compare the evolution profiles of various gases for various coals.
Tracking of all the constituents is done by a quadruple mass analyzer under MID scan mode. There are 64 channels for specifying the molecular weights. In MID mode, the MS analyzer tracks the pre-specified compounds over the entire period of degradation temperature. This technique is very useful for doing comparative analysis of different types of metallurgical coals.

5.6 Hydrogen liberation and correlation with coking potential
Plastic zone is the most crucial zone in the coke making process. Good coking coals also exhibit good thermoplastic behaviour. Cracking and condensation reactions compete with each other and crosslinking of macromolecules take place. In this process H2 should evolve in sufficient amount to act as feed for the cracked molecules. Simultaneously H2 evolution is also a measure of aromatization process and it reaches its maximum at the maximum fluidity temperature. Thus, evolution of H2 gas in the zone of about 300°C to 700 °C shows a very good correlation for coke making perspective. The normalized ion intensity curves basically represent the qualitative analysis of the evolution of H2 throughout the decomposition temperature range. The thermoplastic zone which ranges from about 400°C to 600°C provides a better understanding of the coking potential, where the maximum evolution of volatile matter takes place and the peak of the DTG curve is obtained.

This observation can be explained as for coal A, wherein the cracking process is more which may not abstract H2 from the hydro aromatic compound, but addition of organic polymers donates it sacrificial active hydrocarbon sites which helps in pairing up with coal molecules for an efficient aromatization followed by condensation into a large polyaromatic hydrocarbon. In other words, it helps in efficient polymerization of coal during pyrolysis. It can be inferred that with the addition of organic polymers (OP1, OP2, OP3, OP4) hydrogen evolution at the range of 400°C to 600°C is improved. Figure 4-8 presents the normalized intensity of hydrogen with temperature for Coal without the addition of organic polymers (OP1, OP2, OP3, OP4) and with the addition of organic polymers (OP1, OP2, OP3, OP4) individually. It is revealed from the figures that initially the hydrogen generation of non-coking coal in the plastic region is less. With addition of the different polymers the hydrogen generation in the plastic region get improved. Hence there is an indication of improvement of coking potential of a non-coking coal with the addition of organic compounds.

Additional embodiments and features of the present disclosure is apparent to one of ordinary skill in art based on the description provided herein. The embodiments herein provide various features and advantageous details thereof in the description. Descriptions of well-known/conventional methods and techniques are omitted so as to not unnecessarily obscure the embodiments herein. The foregoing description of the specific embodiments fully reveals the general nature of the embodiments herein that others can, by applying current knowledge, readily modify and/or adapt for various applications such specific embodiments without departing from the generic concept, and, therefore, such adaptations and modifications should and are intended to be comprehended within the meaning and range of equivalents of the disclosed embodiments. It is to be understood that the phraseology or terminology employed herein is for the purpose of description and not of limitation. Therefore, those skilled in the art will recognize that the embodiments herein can be practiced with modification within the spirit and scope of the embodiments as described herein. With respect to the use of substantially any plural and/or singular terms herein, those having skill in the art can translate from the plural to the singular and/or from the singular to the plural as is appropriate to the context and/or application. The various singular/plural permutations may be expressly set forth herein for sake of clarity. The use of the expression “at least” or “at least one” suggests the use of one or more elements or ingredients or quantities, as the use may be in the embodiment of the disclosure to achieve one or more of the desired objects or results. Any discussion of documents, acts, materials, devices, articles and the like that has been included in this specification is solely for the purpose of providing a context for the disclosure. It is not to be taken as an admission that any or all of these matters form a part of the prior art base or were common general knowledge in the field relevant to the disclosure as it existed anywhere before the priority date of this application. While considerable emphasis has been placed herein on the particular features of this disclosure, it will be appreciated that various modifications can be made, without departing from the principles of the disclosure. These and other modifications in the nature of the disclosure will be apparent to those skilled in the art from the disclosure herein, whereby it is to be distinctly understood that the foregoing descriptive matter is to be interpreted merely as illustrative of the disclosure and not as a limitation.