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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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Patent Agency Ranking
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：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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公开(公告)号：US20230101524A1
公开(公告)日：2023-03-30
申请号：US17950947
申请日：2022-09-22
Applicant: INDIAN OIL CORPORATION LIMITED
Inventor： Shivam Ashok DIXIT , Terapalli Hari Venkata Devi PRASAD , Ponoly Ramachandran PRADEEP , Rajesh * , Satyen Kumar DAS , Madhusudan SAU , Gurpreet Singh KAPUR , Sankara Sri Venkata RAMAKUMAR
Abstract: The present invention provides a method for production of anode grade coke by processing crude oil feed stock in a DCU. The method comprising separation of low boiling light molecular weight components from heavier molecules and processing the same in Delayed Coker Unit after mixing with aromatic rich stream to overcome the operational issue envisaged due to processing of paraffin containing crude feed. The coke so obtained was calcined to produce an improved quality coke having lesser impurities (Sulfur
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公开(公告)号：US20210246380A1
公开(公告)日：2021-08-12
申请号：US17170412
申请日：2021-02-08
Applicant: Indian Oil Corporation Limited
Inventor： 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
Abstract: 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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