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公开(公告)号：US20230193146A1
公开(公告)日：2023-06-22
申请号：US18084099
申请日：2022-12-19
发明人： Vasamsetty Naga Veera HIMA BINDU , Mainak Sarkar , Ganesh Vitthalrao Butley , Ramesh Karumanchi , Sarvesh Kumar , Madhusudan Sau , Sankara Sri Venkata Ramakumar
CPC分类号： C10G67/14 , B01D3/148 , C10G2300/1096 , C10G2300/202 , C10G2300/4006 , C10G2300/4012 , C10G2300/1048 , C10G2300/301 , C10G2300/4018 , C10G2300/308
摘要： 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.
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公开(公告)号：US11578277B2
公开(公告)日：2023-02-14
申请号：US17520455
申请日：2021-11-05
发明人： Nayan Das , Mainak Sarkar , Ganesh Vitthalrao Butley , Ramesh Karumanchi , Sarvesh Kumar , Madhusudan Sau , Gurpreet Singh Kapur , Sankara Sri Venkata Ramakumar
IPC分类号： C10G65/12
摘要： 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.
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公开(公告)号：US11866658B2
公开(公告)日：2024-01-09
申请号：US18084099
申请日：2022-12-19
发明人： Vasamsetty Naga Veera Hima Bindu , Mainak Sarkar , Ganesh Vitthalrao Butley , Ramesh Karumanchi , Sarvesh Kumar , Madhusudan Sau , Sankara Sri Venkata Ramakumar
CPC分类号： C10G67/14 , B01D3/148 , C10G2300/1048 , C10G2300/1096 , C10G2300/202 , C10G2300/301 , C10G2300/308 , C10G2300/4006 , C10G2300/4012 , C10G2300/4018
摘要： 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.
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公开(公告)号：US11548841B2
公开(公告)日：2023-01-10
申请号：US17448965
申请日：2021-09-27
发明人： 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
摘要： 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.
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公开(公告)号：US11999914B2
公开(公告)日：2024-06-04
申请号：US17481077
申请日：2021-09-21
发明人： Vasamsetty Naga Veera Hima Bindu , Mainak Sarkar , Ganesh Vitthalrao Butley , Ramesh Karumanchi , Sarvesh Kumar , Madhusudan Sau , Gurpreet Singh Kapur , Sankara Sri Venkata Ramakumar
CPC分类号： C10G67/14 , C10G7/00 , C10G25/00 , C10G31/00 , C10G45/08 , C10G45/50 , C10G67/06 , C10G2300/1037 , C10G2300/202 , C10G2300/207 , C10G2300/302 , C10G2300/308 , C10G2300/4006 , C10G2300/4012 , C10G2300/4018 , C10G2300/80 , C10G2400/30
摘要： 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.
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公开(公告)号：US11840672B2
公开(公告)日：2023-12-12
申请号：US18152941
申请日：2023-01-11
发明人： Ponoly Ramachandran Pradeep , Shahil Siddiqui , Vineeth Venu Nath , Darshankumar Manubhai Dave , Mainak Sarkar , Satyen Kumar Das , Madhusudan Sau , Sankara Sri Venkata Ramakumar
CPC分类号： C10G67/16 , C10G67/02 , C10G69/14 , C10G2300/1033 , C10G2300/301 , C10G2300/4006 , C10G2300/4012 , C10G2300/4025 , C10G2300/4081 , C10G2400/20 , C10G2400/30
摘要： 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.
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公开(公告)号：US11001771B2
公开(公告)日：2021-05-11
申请号：US16850822
申请日：2020-04-16
发明人： 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
摘要： 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.
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公开(公告)号：US10822557B2
公开(公告)日：2020-11-03
申请号：US16299008
申请日：2019-03-11
发明人： 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
摘要： 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.
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公开(公告)号：US10655076B2
公开(公告)日：2020-05-19
申请号：US16294771
申请日：2019-03-06
发明人： 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
摘要： 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.
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公开(公告)号：US10604708B2
公开(公告)日：2020-03-31
申请号：US15912212
申请日：2018-03-05
发明人： Ganesh Vitthalrao Butley , Yamini Gupta , Mainak Sarkar , Arun Arangarasu , Madhusudan Sau , Brijesh Kumar , Santanam Rajagopal , Ravinder Kumar Malhotra
IPC分类号： C10G65/04
摘要： 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. The process is repeated until the liquid product sulfur level of less than 10 ppm is attained and the liquid product is sent to further processing.
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