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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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公开(公告)号：US20190256786A1
公开(公告)日：2019-08-22
申请号：US16206946
申请日：2018-11-30
Applicant: INDIAN OIL CORPORATION LIMITED
Inventor： Ponoly Ramachandran PRADEEP , Arjun Kumar KOTTAKUNA , Terapalli Hari Venkata Devi PRASAD , Satyen Kumar DAS , Debasis BHATTACHARYYA , Sanjiv Kumar MAZUMDAR , Sankara Sri Venkata RAMAKUMAR
Abstract: 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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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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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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公开(公告)号：US20240317657A1
公开(公告)日：2024-09-26
申请号：US18614527
申请日：2024-03-22
Applicant: Indian Oil Corporation Limited
Inventor： Shikha SALUJA , Gadari SAIDULU , Madhusudan SAU , Sadhullah MUKTHIYAR , Terapalli Hari Venkata Devi PRASAD , Reshmi MANNA
CPC classification number: C07C5/3332 , B01J8/384 , B01J21/12 , B01J21/20 , B01J38/38 , C07C11/04 , C07C2521/12
Abstract: The present disclosure provides a process for high conversion residue cracking in a circulating fluidized bed reactor while integrating it with the dehydration of ethanol. More particularly, the present disclosure relates to an integrated circulating fluidized bed process for the simultaneous dehydration of ethanol and cracking of a hydrocarbon feedstock. By integrating the cracking reactor with ethanol dehydration reactor, more conradson carbon residue feedstock can be processed in cracking reactor while limiting the coke combustor temperature.
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Patent Agency Ranking
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：US20190225892A1
公开(公告)日：2019-07-25
申请号：US16206936
申请日：2018-11-30
Applicant: INDIAN OIL CORPORATION LIMITED
Inventor： Ponoly Ramachandran PRADEEP , Satyen Kumar DAS , Terapalli Hari Venkata Devi PRASAD , Arjun Kumar KOTTAKUNA , RAJESH , Kashyapkumar Mahendra PASTAGIA , Debasis BHATTACHARYYA , Sanjiv Kumar MAZUMDAR , Sankara Sri Venkata RAMAKUMAR
Abstract: The present invention relates to crude oil processing, particularly related to conversion of crude oil containing high amount of naphthenic acid compounds to lighter hydrocarbon materials with minimum capital expenditure. The invented process utilizes a novel scheme for high TAN crude oils by employing thermal cracking process to maximize the residue conversion to valuable products, which require minimum modifications in unit metallurgies and corrosion inhibitor injection schemes in refineries.
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公开(公告)号：US20180208853A1
公开(公告)日：2018-07-26
申请号：US15935828
申请日：2018-03-26
Applicant: Indian Oil Corporation Limited
Inventor： 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
Abstract: 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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