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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：US20220315849A1
公开(公告)日：2022-10-06
申请号：US17711308
申请日：2022-04-01
Applicant: INDIAN OIL CORPORATION LIMITED
Inventor： Ponoly Ramachandran PRADEEP , Prantik MONDAL , Shahil SIDDIQUI , Ramu EMMANDI , Satyen Kumar DAS , Madhusudan SAU , Gurpreet Singh KAPUR , Sankara Sri Venkata RAMAKUMAR
Abstract: The furnace of a delayed coking unit which is utilized for heating residue feeds to high temperatures can suffer from decrease in run length and fouling caused by caustic carryover from the upstream desalter unit. An antifoulant additive for preventing caustic induced fouling of thermal cracker furnace tubes is disclosed. The described antifoulant additive acts by converting the inorganic caustic compound such as NaOH to naphthenate salt of the metal as well as by reducing the fouling tendency of the whole feedstock, thereby making it ineffective in causing coking reaction. The additive finds application in thermal residue upgradation furnaces such as delayed coking unit, visbreaker, etc.
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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：US20200377798A1
公开(公告)日：2020-12-03
申请号：US16844820
申请日：2020-04-09
Applicant: INDIAN OIL CORPORATION LIMITED
Inventor： Ponoly Ramachandran PRADEEP , Prantik MONDAL , Terapalli Hari Venkata Devi PRASAD , Satyen Kumar DAS , Madhusudan SAU , Sanjiv Kumar MAZUMDAR , Sankara Sri Venkata RAMAKUMAR
IPC: C10B57/00 , C10B53/00 , C10B47/30 , B01D45/16 , B01J20/08 , B01J20/18 , B01J20/12 , B01J20/28 , B03B4/00
Abstract: The present invention relates to a conversion of fuel grade coke produced through thermal cracking of heavy petroleum residue to anode grade coke. More specifically, the present invention provides a process which employs high sulfur fuel grade coke as the feedstock to produce low sulfur coke which can be used to manufacture electrodes for use in aluminium industry. Further, the invention also relates to a system for removal of metal content from coke and conversion of fuel grade coke to anode grade coke.
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