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公开(公告)号：US11661556B2
公开(公告)日：2023-05-30
申请号：US17809211
申请日：2022-06-27
发明人： Shivam Ashok Dixit , Ponoly Ramachandran Pradeep , Jitumoni Brahma , Terapalli Hari Venkata Devi Prasad , Satyen Kumar Das , Madhusudan Sau , Gurpreet Singh Kapur , Sankara Sri Venkata Ramakumar
CPC分类号： C10G53/08 , C10G9/005 , C10G9/007 , C10G25/003 , C10G31/06 , C10G2300/107 , C10G2300/1077 , C10G2300/203 , C10G2300/4006 , C10G2300/4012 , C10G2300/4031 , C10G2300/701
摘要： The present invention relates to a sequential thermo-chemical treatment along with adsorption-based pre-treatment process for residual oils having a very high naphthenic acid content. First stage of the process is a thermal pre-treatment step which results into generation of hydrocarbon stream with a reduced naphthenic acid content due to high temperature. In second stage of pre-treatment, generated hydrocarbon stream from stage-1 is subjected to esterification reaction with alcohol, such as methanol, to further reduce the TAN of hydrocarbon stream. After recovery of alcohol from the reaction mixture, depending on TAN reduction required reaction mixture may be subjected to an adsorption stage, third stage pre-treatment, where an adsorbent mixture comprising of FCC spent catalyst is used to adsorb the TAN of feed hydrocarbon stream. The treated hydrocarbon stream is then co-processed with DCU feed stock for producing lighter hydrocarbons.
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公开(公告)号：US11421159B2
公开(公告)日：2022-08-23
申请号：US17005184
申请日：2020-08-27
发明人： Ponoly Ramachandran Pradeep , Terapalli Hari Venkata Devi Prasad , Shivam Ashok Dixit , Prantik Mondal , Vimal Kakkarakkal Kottiyath , Satyen Kumar Das , Anju Chopra , Madhusudan Sau , Gurpreet Singh Kapur , Sankara Sri Venkata Ramakumar , Sanjiv Singh
摘要： The present invention relates to a process for converting the waste plastic along with the petroleum residue feedstock in a Delayed Coker unit employed in refineries. The invented process aims to convert any type of waste plastic including polystyrene, polypropylene, polyethylene etc. including metal additized multilayer plastics along with the petroleum residue material from crude oil refining such as reduced crude oil, vacuum residue etc. Value added light distillate products like motor spirit, LPG, middle distillates etc. are produced upon co-conversion in the invented process and is recovered and treated along with the products of thermal cracking of hydrocarbon residues. The residual metals in the metal additized plastics upon co-conversion in the invented process will be deposited in the solid petroleum coke.
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公开(公告)号：US11788013B2
公开(公告)日：2023-10-17
申请号：US17478692
申请日：2021-09-17
发明人： Ponoly Ramachandran Pradeep , Shivam Ashok Dixit , Prantik Mondal , Jitumoni Brahma , Rajesh , Terapalli Hari Venkata Devi Prasad , Satyen Kumar Das , Madhusudan Sau , Gurpreet Singh Kapur , Sankara Sri Venkata Ramakumar
IPC分类号： C10B57/08 , C10B55/00 , C10B57/02 , C10G7/00 , C10G9/00 , C10G11/16 , C10G31/09 , C10G45/02 , C10G67/14 , C10G67/16
CPC分类号： C10B57/08 , C10B55/00 , C10B57/02 , C10G7/00 , C10G9/005 , C10G11/16 , C10G31/09 , C10G45/02 , C10G67/14 , C10G67/16 , C10G2300/1074 , C10G2300/1096 , C10G2300/202 , C10G2300/4081 , C10G2400/06
摘要： High-quality graphite/needle grade coke is produced with reduced impurity levels and improved coefficient of thermal expansion using an integrated hydrotreatment, catalytic cracking and coking reaction sections, employing a combination of highly paraffinic hydrotreated VGO stream and aromatic CLO stream, which is thereafter processed in a delayed coking section.
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公开(公告)号：US11345862B2
公开(公告)日：2022-05-31
申请号：US16933554
申请日：2020-07-20
发明人： Ponoly Ramachandran Pradeep , Prantik Mondal , Terapalli Hari Venkata Devi Prasad , Satyen Kumar Das , Madhusudan Sau , Gurpreet Singh Kapur , Sankara Sri Venkata Ramakumar
摘要： An apparatus and a method for washing hydrocarbon product vapor are disclosed. The apparatus comprises housing, a first wash zone at a predefined cross-section of the housing for receiving the hydrocarbon product vapor, a plurality of injection units located within the first wash zone at predetermined intervals of the length of the housing for receiving wash oil. The injection units inject oil droplets formed from the received wash oil to contact the vapor and obtain a primary washed hydrocarbon vapor within the first wash zone. Further, a second wash zone is located above and in fluid communication with the first wash zone for receiving the primary washed hydrocarbon vapor. One or more spray headers receive wash oil and spray oil droplets formed from the received wash oil to contact with the primary washed hydrocarbon vapor, thereby forming a secondary washed hydrocarbon vapor.
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公开(公告)号：US10808177B2
公开(公告)日：2020-10-20
申请号：US15935828
申请日：2018-03-26
发明人： Satyen Kumar Das , Ponoly Ramachandran Pradeep , Terapalli Hari Venkata Devi Prasad , Arjun Kumar Kottakuna , Madhusudan Sau , Debasis Bhattacharyya , Sanjiv Kumar Mazumdar , Sankara Sri Venkata Ramakumar
IPC分类号： C10G9/00 , C10B57/02 , C10G7/00 , C10G51/02 , C10B17/00 , B01J19/18 , C10B49/02 , C10B55/00 , C10B57/04
摘要： The present invention relates to delayed coking of heavy petroleum residue producing petroleum coke and lighter hydrocarbon products. The invented process utilize a pre-cracking reactor and a reactor furnace for mild thermal cracking of the feedstock and an intermediate separator, before being subjected to higher severity thermal cracking treatment in a coker furnace and a coking drums, resulting in reduction in overall coke yield.
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公开(公告)号：US11421162B2
公开(公告)日：2022-08-23
申请号：US17391933
申请日：2021-08-02
发明人： Ponoly Ramachandran Pradeep , Prantik Mondal , Shivam Ashok Dixit , Shikha Saluja , Shakti Singh , Terapalli Hari Venkata Devi Prasad , Satyen Kumar Das , Madhusudan Sau , Gurpreet Singh Kapur , Sankara Sri Venkata Ramakumar
摘要： The present invention relates to a process for converting the waste plastics along with the petroleum feedstock in a Catalytic Cracking Unit, in particular a Fluid Catalytic Cracking Unit employed in petroleum refineries. The invention also provides a method and hardware system to enable waste plastic to fuel conversion along with hydrocarbon catalytic cracking. The invented process aims to convert any type of waste plastic including polystyrene, polypropylene, polyethylene, metal containing Polyethylene-Polypropylene multilayer plastics & other metal containing plastics along with the petroleum derived feedstock such as vacuum gas oil, reduced crude oil, vacuum residue etc. in catalytic cracking unit.
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公开(公告)号：US11345866B2
公开(公告)日：2022-05-31
申请号：US17170412
申请日：2021-02-08
发明人： Sanjiv Kumar Mazumdar , Shivam Ashok Dixit , Satyen Kumar Das , Terapalli Hari Venkata Devi Parsad , Ponoly Ramachandran Pradeep , Manisha Saraswat , Madhusudan Sau , Sankara Sri Venkata Ramakumar
摘要： This invention relates to production of low sulfur MARPOL compliant bunker fuel oil and distillates using high sulfur residue, low sulfur residue and/or blend of high and low sulfur residue feed stock. The invention also describes a method for production of a cutterstock stream having a lower paraffin and higher aromatic content than a feed stream using a paraffin separation section and its blending to produce bunker fuel.
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公开(公告)号：US10590354B2
公开(公告)日：2020-03-17
申请号：US16206946
申请日：2018-11-30
发明人： Ponoly Ramachandran Pradeep , Arjun Kumar Kottakuna , Terapalli Hari Venkata Devi Prasad , Satyen Kumar Das , Debasis Bhattacharyya , Sanjiv Kumar Mazumdar , Sankara Sri Venkata Ramakumar
IPC分类号： C10G57/00 , C10G7/06 , C10G9/36 , C10G9/00 , C10G11/05 , C10G51/06 , C10G55/08 , C10G55/00 , C10G31/08 , C10G11/18 , C10G51/00 , C10J3/00
摘要： The present invention relates to a process and system for complete conversion of crude oils by integrating delayed coking process, high severity catalytic cracking process and naphtha cracking processes along with olefin recovery section, aromatic recovery section and gasifier section to maximize the crude oil conversion to valuable products like light olefins, aromatics and chemicals.
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9.发明授权公开(公告)号：US11859132B2
公开(公告)日：2024-01-02
申请号：US17816951
申请日：2022-08-02
发明人： Shahil Siddiqui , Ponoly Ramachandran Pradeep , Vijayan Kanattukara Bineesh , Satyen Kumar Das , Madhusudan Sau , Gurpreet Singh Kapur , Sankara Sri Venkata Ramakumar
CPC分类号： C10G1/002 , C10G1/10 , C10G7/04 , C10G9/005 , C10G9/007 , C10G2300/1003 , C10G2300/301 , C10G2300/4006 , C10G2300/4012 , C10G2300/708 , C10G2400/20
摘要： The present invention discloses a process and an apparatus for conversion of waste plastic pyrolysis oil into value added products, wherein, the pyrolysis oil is produced from waste plastics by utilizing HCGO as a preheating stream. The process and apparatus as disclosed improves the conventional DCU process in terms of liquid, gaseous yields and reduction in coke yields and without disturbing the hardware of the conventional process along with energy efficient production of pyrolysis oil. The present process and apparatus include a delayed coking process and a system for the delayed coking process which involves the integration of delayed coking system with pyrolysis section and utilization of produced pyrolysis oil by co-processing it with residual heavy hydrocarbon feedstock.
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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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