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公开(公告)号：US20220089955A1
公开(公告)日：2022-03-24
申请号：US17478692
申请日：2021-09-17
Applicant: INDIAN OIL CORPORATION LIMITED
Inventor： 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: C10B57/08 , C10B55/00 , C10B57/02 , C10G9/00 , C10G11/16 , C10G7/00 , C10G31/09 , C10G45/02 , C10G67/16 , C10G67/14
Abstract: 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：US20200325407A1
公开(公告)日：2020-10-15
申请号：US16777031
申请日：2020-01-30
Applicant: Indian Oil Corporation Limited
Inventor： Terapalli Hari Venkata Devi PRASAD , Ponoly Ramachandran PRADEEP , Satyen Kumar DAS , Kamal KUMAR , Ramesh KARUMANCHI , Madhusudan SAU , Debasis BHATTACHARYYA , Sanjiv Kumar MAZUMDAR , Sankara Sri Venkata RAMAKUMAR
Abstract: The present invention relates to a process for production of anisotropic coke from a hydrocarbon feedstock and a system for producing the same. More particularly, the present invention relates to a thermal cracking of heavy petroleum residue producing petroleum coke and lighter hydrocarbon products. The invented process utilizes a novel scheme for production of a premium quality coke from primarily, a clarified oil feedstock. Clarified oil from fluid catalytic cracking unit is routed through a process scheme comprising a separator column, hydro-treatment section and an aromatic extraction section to create an ad-mix of effluents which form the feedstock to a thermal cracking unit. Premium quality anisotropic coke is produced in the thermal cracker reactor drums under tailor made process conditions employing the said feedstock.
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公开(公告)号：US20180016503A1
公开(公告)日：2018-01-18
申请号：US15650587
申请日：2017-07-14
Applicant: Indian Oil Corporation Limited
Inventor： Terapalli Hari Venkata Devi PRASAD , Ponoly Ramachandran PRADEEP , Satyen Kumar DAS , Jagdev Kumar DIXIT , RAJESH , Gautam THAPA , Debasis BHATTACHARYYA , Sankara Sri Venkata RAMAKUMAR , Biswapriya DAS
CPC classification number: C10B33/00 , B01J8/44 , B01J19/0053 , C10B1/04 , C10B55/00 , C10B55/02 , C10B57/18 , C10G1/086 , C10G9/005 , C10G51/04 , C10G70/00
Abstract: The present subject matter describes a method and apparatus for operating a delayed coker. The method comprises contacting a vapour produced in a delayed coker-drum with a catalyst maintained in form of a bed, and maintaining a level of said catalyst-bed within pre-defined limits during catalytic-cracking of the vapour. Thereafter, the cracked-vapour is routed to a coker-fractionator column to trigger conversion into one or more hydrocarbon products.
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公开(公告)号：US20240182787A1
公开(公告)日：2024-06-06
申请号：US18530039
申请日：2023-12-05
Applicant: Indian Oil Corporation Limited
Inventor： Shivam Ashok DIXIT , Ponoly Ramachandran PRADEEP , Mainak SARKAR , Satyen Kumar DAS , Madhusudan SAU , Sankara Sri Venkata RAMAKUMAR
CPC classification number: C10B55/00 , C10B57/02 , C10G67/16 , C10G2300/1096 , C10G2300/201 , C10G2300/4006 , C10G2300/4012 , C10G2300/4037 , C10G2300/4081 , C10G2300/708 , C10G2400/30
Abstract: 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.
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公开(公告)号：US20210087473A1
公开(公告)日：2021-03-25
申请号：US17005184
申请日：2020-08-27
Applicant: Indian Oil Corporation Limited
Inventor： 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
Abstract: 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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Patent Agency Ranking
公开(公告)号：US20190185765A1
公开(公告)日：2019-06-20
申请号：US16176679
申请日：2018-10-31
Applicant: Indian Oil Corporation Limited
Inventor： Satyen Kumar DAS , Terapalli Hari Venkata Devi PRASAD , Ponoly Ramachandran PRADEEP , Arjun Kumar KOTTAKUNA , Debasis BHATTACHARYYA , Sanjiv Kumar MAZUMDAR , Sankara Sri Venkata RAMAKUMAR
CPC classification number: C10G51/023 , C10G7/06 , C10G9/005 , C10G9/14 , C10G11/18 , C10G45/00 , C10G47/00 , C10G55/04 , C10G69/06 , C10G2300/1044 , C10G2300/107 , C10G2300/1077 , C10G2300/708 , C10G2400/06
Abstract: The present invention relates to Delayed Coking of heavy petroleum residue producing petroleum coke and lighter hydrocarbon products. The invented process utilizes a pre-cracking reactor for mild thermal cracking of the feedstock and intermediate multistage separation system before being subjected to higher severity thermal cracking in delayed coking process, resulting in reduction in overall coke yield.
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7.发明申请公开(公告)号：US20160333280A1
公开(公告)日：2016-11-17
申请号：US15222903
申请日：2016-07-28
Applicant: INDIAN OIL CORPORATION LIMITED
Inventor： Saravanan SUBRAMANI , Debasis BHATTACHARYYA , Reshmi MANNA , Satyen Kumar DAS , Tridib SARKAR , Santanam RAJAGOPAL
CPC classification number: C10G51/06 , B01J8/0055 , B01J8/1863 , B01J8/26 , B01J8/28 , B01J21/04 , B01J29/088 , B01J35/0006 , B01J35/0026 , B01J35/023 , B01J35/08 , B01J2208/00752 , B01J2208/00761 , B01J2208/00902 , B01J2208/00911 , C10G11/182 , C10G11/185 , C10G2300/104 , C10G2300/1044 , C10G2300/1059 , C10G2300/107 , C10G2300/1074 , C10G2300/1077 , C10G2300/301 , C10G2300/4018 , C10G2300/4025 , C10G2300/4093 , C10G2300/701 , C10G2300/703 , C10G2300/708 , C10G2300/807 , C10G2400/02 , C10G2400/20 , C10G2400/22 , C10G2400/28 , C10G2400/30
Abstract: The invention provides for a process and apparatus for simultaneous conversion of lighter and heavier hydrocarbon feedstocks into improved yields of light olefins in the range of C2 to C4, liquid aromatics in the range C6 to C8 mainly benzene, toluene, xylene and ethyl benzene and other useful products employing at least two different reactors operated in series with respect to catalyst flow and parallel with respect to feed flow under different regimes and process conditions with same catalyst system.
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公开(公告)号：US20240216903A1
公开(公告)日：2024-07-04
申请号：US18524086
申请日：2023-11-30
Applicant: Indian Oil Corporation Limited
Inventor： Prosenjit MAJI , Saravanan SUBRAMANI , Satyen Kumar DAS , Madhusudan SAU
Abstract: The present invention relates to a process for in-situ regeneration of spent ion exchange resin catalyst used in the dimerization of olefins, etherification and alkylation processes by various impurities coming from feed streams and heavier oligomers forms as byproducts. The process involves backwashing with water which is followed by the step of naphtha washing. Naphtha washing involves filling the reactor with paraffinic naphtha and soaking the catalyst bed in naphtha. The step of naphtha washing is followed by naphtha circulation in the reactor. The last step involves treatment with diluted HCl solution wherein deposited impurities at the ion exchange sites are removed using diluted HCl. The process achieves up to 80% regeneration of spent catalysts.
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9.发明申请公开(公告)号：US20230047205A1
公开(公告)日：2023-02-16
申请号：US17816951
申请日：2022-08-02
Applicant: Indian Oil Corporation Limited
Inventor： Shahil SIDDIQUI , Ponoly Ramachandran PRADEEP , Vijayan Kanattukara BINEESH , Satyen Kumar DAS , Madhusudan SAU , Gurpreet Singh KAPUR , Sankara Sri Venkata RAMAKUMAR
Abstract: 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：US20220411703A1
公开(公告)日：2022-12-29
申请号：US17809211
申请日：2022-06-27
Applicant: Indian Oil Corporation Limited
Inventor： 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
Abstract: 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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