Patents by Inventor Mainak Sarkar
Mainak Sarkar has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20240378674Abstract: A method for monitoring and reporting the corporate activity and stock filings of private companies comprising the steps of: obtaining relevant raw data from informational documents obtained from publicly available sources; cleaning, parsing and classifying the raw data contained within the informational documents into intermediate data; and using the intermediate data to create final data, wherein the final data is fed into reports prepared for users. The disclosed method is configured to make use of these publicly available informational documents in order to generate and provide reports to potential investors, these reports having relevant company information, allowing investors to make informed investment decisions regarding the company. The reports may include company identity, a status summary, key data on stock filings, history of the authorized shares issued, a corporate tree which sets out company relationships to branches and officers, and information on corporate officers and directors of branches.Type: ApplicationFiled: May 13, 2024Publication date: November 14, 2024Inventors: Jose M Plehn-Dujowich, Scott Openlander, Mainak Sarkar
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Publication number: 20240182797Abstract: The present invention relates to an integrated process for conversion of crude oil to petrochemicals viz. olefins and aromatics. More specifically, the present invention provides a configuration of processes both primary and secondary processing units through which the crude oil can be converted to petrochemicals. The configuration of processes provided by the present invention utilizes minimum numbers of secondary processing units and provides great degree of flexibility towards maximizing yield of either petrochemical or fuels depending upon market scenario.Type: ApplicationFiled: December 1, 2023Publication date: June 6, 2024Applicant: Indian Oil Corporation LimitedInventors: Nayan DAS, Mainak SARKAR, Sarvesh KUMAR, Ramesh KARUMANCHI, Madhusudan SAU, Sankara Sri Venkata RAMAKUMAR
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Publication number: 20240182787Abstract: The present disclosure provides a process for preparing a needle coke or a crystalline coke from aromatic rich hydrocarbon streams. The process includes preparing a needle coke or a crystalline coke from Pyrolytic Fuel Oil (PFO) and Clarified Oil (CLO) stream along with Purified fraction of CLO after solvent separation of refractory asphaltene compounds while the low boiling fractions separated from PFO and light gasoil (LGO) from the thermal cracking section are selectively hydro cracked to produce high value aromatic chemicals.Type: ApplicationFiled: December 5, 2023Publication date: June 6, 2024Applicant: Indian Oil Corporation LimitedInventors: Shivam Ashok DIXIT, Ponoly Ramachandran PRADEEP, Mainak SARKAR, Satyen Kumar DAS, Madhusudan SAU, Sankara Sri Venkata RAMAKUMAR
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Patent number: 11999914Abstract: A process and a system are used for production of multiple grades of ultralow aromatic solvents/chemicals having preferred boiling range, flash point and viscosity from different hydrocarbon streams. A plurality of hydrotreating steps are used to hydrotreat a plurality of hydrocarbon feedstocks in the presence of a hydrogen gas stream and a catalyst system. Further, at least one dissolved gas stripping step, at least one adsorption step, and a distillation step are included in the process. Desired iso-paraffin molecules are thereby preserved, and the undesired aromatic molecules are converted into desired naphthene molecules.Type: GrantFiled: September 21, 2021Date of Patent: June 4, 2024Assignee: INDIAN OIL CORPORATION LIMITEDInventors: Vasamsetty Naga Veera Hima Bindu, Mainak Sarkar, Ganesh Vitthalrao Butley, Ramesh Karumanchi, Sarvesh Kumar, Madhusudan Sau, Gurpreet Singh Kapur, Sankara Sri Venkata Ramakumar
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Patent number: 11866658Abstract: A process for the production of ultralow aromatic specialty distillate from different refinery streams particularly high sulfur streams. The process produces de-aromatized distillates with benzene content below 1 ppmw. Hydrocarbon feedstock having boiling temperature in the range of 90 and 350° C., preferably 140 and 320° C. The hydrocarbon feedstocks are obtained from any petroleum-refinery or bio-refinery or any other source producing hydrocarbon streams.Type: GrantFiled: December 19, 2022Date of Patent: January 9, 2024Inventors: Vasamsetty Naga Veera Hima Bindu, Mainak Sarkar, Ganesh Vitthalrao Butley, Ramesh Karumanchi, Sarvesh Kumar, Madhusudan Sau, Sankara Sri Venkata Ramakumar
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Patent number: 11840672Abstract: The present invention relates to a process and system for complete conversion of crude oils by integrating Desalter unit, Atmospheric and vacuum column, high severity FCC process, Naphtha cracking process, residue slurry hydrocracking process, Delayed coking process, Selective mild hydrocracking aromatic production unit, Dehydrogenation units, Aromatic/olefin recovery section, gasifier unit along with syngas to olefins conversion section.Type: GrantFiled: January 11, 2023Date of Patent: December 12, 2023Assignee: INDIAN OIL CORPORATION LIMITEDInventors: Ponoly Ramachandran Pradeep, Shahil Siddiqui, Vineeth Venu Nath, Darshankumar Manubhai Dave, Mainak Sarkar, Satyen Kumar Das, Madhusudan Sau, Sankara Sri Venkata Ramakumar
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Publication number: 20230331645Abstract: A process for the upgrading of hydrocarbon streams, i.e., processing any hydrocarbon feed streams rich in benzene and sulphur compounds. The process for simultaneous hydrodesulfurization and benzene conversion to higher alkylated aromatic molecules (C7 to C10 aromatics), without need of prior treatment like distillation, or sulfur removal. The hydrocarbon feed streams are processed over sulfided metal catalyst impregnated on acid support simultaneously desulfurizes and alkylates the benzene molecules.Type: ApplicationFiled: April 12, 2023Publication date: October 19, 2023Applicant: INDIAN OIL CORPORATION LIMITEDInventors: Nayan DAS, Mainak SARKAR, Ganesh Vitthalrao BUTLEY, Kalicharan CHATTOPADHYAY, Sarvesh KUMAR, Madhusudan SAU
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Publication number: 20230227738Abstract: The present invention relates to a process and system for complete conversion of crude oils by integrating Desalter unit, Atmospheric and vacuum column, high severity FCC process, Naphtha cracking process, residue slurry hydrocracking process, Delayed coking process, Selective mild hydrocracking aromatic production unit, Dehydrogenation units, Aromatic/olefin recovery section, gasifier unit along with syngas to olefins conversion section.Type: ApplicationFiled: January 11, 2023Publication date: July 20, 2023Inventors: Ponoly Ramachandran PRADEEP, Shahil SIDDIQUI, Vineeth Venu NATH, Darshankumar Manubhai DAVE, Mainak SARKAR, Satyen Kumar DAS, Madhusudan SAU, Sankara Sri Venkata RAMAKUMAR
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Publication number: 20230193146Abstract: A process for the production of ultralow aromatic specialty distillate from different refinery streams particularly high sulfur streams. The process produces de-aromatized distillates with benzene content below 1 ppmw. Hydrocarbon feedstock having boiling temperature in the range of 90 and 350° C., preferably 140 and 320° C. The hydrocarbon feedstocks are obtained from any petroleum-refinery or bio-refinery or any other source producing hydrocarbon streams.Type: ApplicationFiled: December 19, 2022Publication date: June 22, 2023Inventors: Vasamsetty Naga Veera HIMA BINDU, Mainak Sarkar, Ganesh Vitthalrao Butley, Ramesh Karumanchi, Sarvesh Kumar, Madhusudan Sau, Sankara Sri Venkata Ramakumar
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Patent number: 11578277Abstract: The present invention discloses an integrated process scheme for producing (i) high-octane gasoline blending stream (ii) high aromatic heavy naphtha stream which is a suitable feedstock for benzene, toluene, and xylene (BTX) production and (iii) high cetane ultra-low sulphur diesel (ULSD) stream suitable for blending in refinery diesel pool.Type: GrantFiled: November 5, 2021Date of Patent: February 14, 2023Assignee: INDIAN OIL CORPORATION LIMITEDInventors: Nayan Das, Mainak Sarkar, Ganesh Vitthalrao Butley, Ramesh Karumanchi, Sarvesh Kumar, Madhusudan Sau, Gurpreet Singh Kapur, Sankara Sri Venkata Ramakumar
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Patent number: 11548841Abstract: The present invention provides a novel route for synthesis and production of linear alpha olefins (LAO) and central olefins from the feedstock comprising fatty acids, triglycerides and esters of fatty acids, and mixture thereof through controlled hydrogenolysis, hydrogenation and dehydration reactions simultaneously in a hydro processing reactor containing a catalyst system having dual site—a metallic site for hydrogenation/reduction reaction under hydrogen environment, and an acidic site for conversion of alcohol to olefin via E1 or E2 reaction mechanism.Type: GrantFiled: September 27, 2021Date of Patent: January 10, 2023Assignee: INDIAN OIL CORPORATION LIMITEDInventors: Vasamsetty Naga Veera Hima Bindu, Mainak Sarkar, Ganesh Vitthalrao Butley, Ajay Kumar, Sujit Mondal, Ramesh Karumanchi, Sarvesh Kumar, Madhusudan Sau, Gurpreet Singh Kapur, Sankara Sri Venkata Ramakumar
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Publication number: 20220135890Abstract: The present invention discloses an integrated process scheme for producing (i) high-octane gasoline blending stream (ii) high aromatic heavy naphtha stream which is a suitable feedstock for benzene, toluene, and xylene (BTX) production and (iii) high cetane ultra-low sulphur diesel (ULSD) stream suitable for blending in refinery diesel pool.Type: ApplicationFiled: November 5, 2021Publication date: May 5, 2022Applicant: INDIAN OIL CORPORATION LIMITEDInventors: Nayan DAS, Mainak SARKAR, Ganesh Vitthalrao BUTLEY, Ramesh KARUMANCHI, Sarvesh KUMAR, Madhusudan SAU, Gurpreet Singh KAPUR, Sankara Sri Venkata RAMAKUMAR
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Publication number: 20220098130Abstract: The present invention provides a novel route for synthesis and production of linear alpha olefins (LAO) and central olefins from the feedstock comprising fatty acids, triglycerides and esters of fatty acids, and mixture thereof through controlled hydrogenolysis, hydrogenation and dehydration reactions simultaneously in a hydro processing reactor containing a catalyst system having dual site—a metallic site for hydrogenation/reduction reaction under hydrogen environment, and an acidic site for conversion of alcohol to olefin via E1 or E2 reaction mechanism.Type: ApplicationFiled: September 27, 2021Publication date: March 31, 2022Inventors: Vasamsetty Naga Veera HIMA BINDU, Mainak SARKAR, Ganesh Vitthalrao BUTLEY, Ajay KUMAR, Sujit MONDAL, Ramesh KARUMANCHI, Sarvesh KUMAR, Madhusudan SAU, Gurpreet Singh KAPUR, Sankara Sri Venkata RAMAKUMAR
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Publication number: 20220089960Abstract: A process and a system are used for production of multiple grades of ultralow aromatic solvents/chemicals having preferred boiling range, flash point and viscosity from different hydrocarbon streams. A plurality of hydrotreating steps are used to hydrotreat a plurality of hydrocarbon feedstocks in the presence of a hydrogen gas stream and a catalyst system. Further, at least one dissolved gas stripping step, at least one adsorption step, and a distillation step are included in the process. Desired iso-paraffin molecules are thereby preserved, and the undesired aromatic molecules are converted into desired naphthene molecules.Type: ApplicationFiled: September 21, 2021Publication date: March 24, 2022Applicant: INDIAN OIL CORPORATION LIMITEDInventors: Vasamsetty Naga Veera HIMA BINDU, Mainak SARKAR, Ganesh Vitthalrao BUTLEY, Ramesh KARUMANCHI, Sarvesh KUMAR, Madhusudan SAU, Gurpreet Singh KAPUR, Sankara Sri Venkata RAMAKUMAR
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Patent number: 11001771Abstract: A process for upgrading light cycle oil (LCO) to a high octane gasoline and a high aromatic feedstock for aromatic complex, by utilizing fluid catalytic cracking (FCC) is disclosed. FCC cracks unconverted diesel range stream from a hydrocracker to a high octane gasoline. This process further improves the quality (e.g., research octane number (RON), and Sulfur) of gasoline by utilizing FCC and hydrocracking process.Type: GrantFiled: April 16, 2020Date of Patent: May 11, 2021Assignee: INDIAN OIL CORPORATION LIMITEDInventors: Mainak Sarkar, Nayan Das, Ganesh Vitthalrao Butley, Sandeep Kumar, Ram Mohan Thakur, Ramesh Karumanchi, Sarvesh Kumar, Madhusudan Sau, Sanjiv Kumar Mazumdar, Sankara Sri Venkata Ramakumar
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Publication number: 20200377807Abstract: The present invention provides a process for upgrading LCO to (i) high octane gasoline and high aromatic feedstock for aromatic complex, (ii) Utilization of FCC for cracking unconverted diesel range stream from hydrocracker to high octane gasoline. This invention discloses the process to improve the quality (e.g., RON, Sulfur) of gasoline by utilizing FCC and hydrocracking processes.Type: ApplicationFiled: April 16, 2020Publication date: December 3, 2020Inventors: Mainak SARKAR, Nayan DAS, Ganesh Vitthalrao BUTLEY, Sandeep KUMAR, Ram Mohan THAKUR, Ramesh KARUMANCHI, Sarvesh KUMAR, Madhusudan SAU, Sanjiv Kumar MAZUMDAR, Sankara Sri Venkata RAMAKUMAR
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Patent number: 10822557Abstract: The present invention relates to a process for production of High-Octane Gasoline blending component, Heavy Naphtha with high aromatic content and High Cetane Diesel from high aromatic middle distillate range boiling streams obtained from catalytic as well as thermal cracker units.Type: GrantFiled: March 11, 2019Date of Patent: November 3, 2020Assignee: INDIAN OIL CORPORATION LIMITEDInventors: Mainak Sarkar, Nayan Das, Ganesh Vitthalrao Butley, Sarvesh Kumar, Rama Kant Yadav, Pastagia Kashyapkumar Mahindra, Madhusudan Sau, Debasis Bhattacharyya, Sanjiv Kumar Mazumdar, Sankara Sri Venkata Ramakumar
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Patent number: 10655076Abstract: The present invention relates to an assorted co-staging and counter stage hydro-treating process configuration scheme is disclosed for deep desulfurization and deep hydro-treating of diesel range hydrocarbons for obtaining diesel product having product sulfur less than 10 ppm and cetane number more than 51.Type: GrantFiled: March 6, 2019Date of Patent: May 19, 2020Assignee: INDIAN OIL CORPORATION LIMITEDInventors: Mainak Sarkar, Darshankumar Manubhai Dave, Ganesh Vitthalrao Butley, Ramesh Karumanchi, Arun Arangarasu, Sarvesh Kumar, Madhusudan Sau, Debasis Bhattacharyya, Sanjiv Kumar Mazumdar, Sankara Sri Venkata Ramakumar
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Patent number: 10647930Abstract: The present invention relates to a hydrocracking reactor system and a process utilizing the same for upgrading heavy hydrocarbonaceous material to value-added products. Accordingly, an aspect of the present invention includes dispersing a liquid feedstock pre-mixed with a catalyst from top of a reactor vessel to obtain dispersed droplets having a predetermined droplet size less than 500 ?m, introducing a gaseous feed comprising primarily of hydrogen from bottom of the reactor vessel to form a continuous gaseous phase throughout a cross-section of the reactor vessel, and allowing the dispersed droplets to contact the continuous gaseous phase throughout the cross-section of the reactor vessel to form reaction effluent comprising one or more lighter product hydrocarbons. The method may further include removing at least a top portion and at least a bottom portion of the reaction effluent from the reactor vessel.Type: GrantFiled: August 30, 2018Date of Patent: May 12, 2020Assignee: INDIAN OIL CORPORATION LIMITEDInventors: Mainak Sarkar, Darshankumar Manubhai Dave, Ramesh Karumanchi, Madhusudan Sau, Ganesh Vitthalrao Butley, Nepal Vishwakarma, Kamal Kumar, Pravesh Kumar, Sarvesh Kumar, Debasis Bhattacharyya, Sanjiv Kumar Mazumdar, Sankara Sri Venkata Ramakumar
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Patent number: 10604708Abstract: A multi-stage hydrotreating process obtains ultra-low sulfur diesel boiling range hydrocarbon having less than 10 ppm sulfur with elimination of external hot high pressure separator and avoids the formation of recombinant mercaptans by removing excess hydrogen sulfide formed during hydroprocessing reaction. The process includes mixing a diesel boiling range hydrocarbon feedstock with hydrogen and sending to the first predominantly liquid phase hydroprocessing reaction stage. Effluent from the first hydroprocessing reaction stage is sent to first separator zone of open and empty space in the upper part of the second hydroprocessing reaction stage to flash off the dissolved reaction products hydrogen sulfide and ammonia. Liquid part of the effluent of first hydroprocessing reaction stage is passed to the second predominantly liquid phase hydroprocessing reaction stage.Type: GrantFiled: March 5, 2018Date of Patent: March 31, 2020Assignee: INDIAN OIL CORPORATION LIMITEDInventors: Ganesh Vitthalrao Butley, Yamini Gupta, Mainak Sarkar, Arun Arangarasu, Madhusudan Sau, Brijesh Kumar, Santanam Rajagopal, Ravinder Kumar Malhotra