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公开(公告)号：US11739277B2
公开(公告)日：2023-08-29
申请号：US17204732
申请日：2021-03-17
Applicant: Indian Oil Corporation Limited
Inventor： Saravanan Subramani , Vimal Kumar Upadhyay , Prosenjit Maji , Reshmi Manna , Vatsala Sugumaran , Mahalingam Vanamamalai , Madhusudan Sau , Gurpreet Singh Kapur , Sankara Sri Venkata Ramakumar
CPC classification number: C10L3/12 , B01D3/14 , B01J39/05 , B01J39/19 , C10L3/103 , C10L2290/141 , C10L2290/543 , C10L2290/548
Abstract: Organic sulfur compounds which are generally present in the crude oil undergoes various transformations while processing the crude oil in the secondary processing units such as fluid catalytic cracker, hydrocracker, delayed coker, visbreaker, etc. The sulfur present in the feed which enters into these secondary processing units are distributed into various products coming out of the units. Sulfur compounds which are present in the various product fractions are removed to meet the desired specifications before routing to the final product pool. Conventionally, sulfur present in the LPG has been removed by amine treatment followed by caustic and water wash. The present invention relates to a process for removal of sulfur and other impurities from Liquefied Petroleum Gas (LPG) comprising olefins through reactive desulfurization route. The present invention is an eco-friendly process as it minimizes or eliminates the use of caustic which is conventionally used to remove the sulfur from LPG.
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公开(公告)号：US20210292670A1
公开(公告)日：2021-09-23
申请号：US17204732
申请日：2021-03-17
Applicant: Indian Oil Corporation Limited
Inventor： Saravanan SUBRAMANI , Vimal Kumar Upadhyay , Prosenjit Maji , Reshmi Manna , Vatsala Sugumaran , Mahalingam Vanamamalai , Madhusudan Sau , Gurpreet Singh Kapur , Sankara Sri Venkata Ramakumar
Abstract: Organic sulfur compounds which are generally present in the crude oil undergoes various transformations while processing the crude oil in the secondary processing units such as fluid catalytic cracker, hydrocracker, delayed coker, visbreaker, etc. The sulfur present in the feed which enters into these secondary processing units are distributed into various products coming out of the units. Sulfur compounds which are present in the various product fractions are removed to meet the desired specifications before routing to the final product pool. Conventionally, sulfur present in the LPG has been removed by amine treatment followed by caustic and water wash. The present invention relates to a process for removal of sulfur and other impurities from Liquefied Petroleum Gas (LPG) comprising olefins through reactive desulfurization route. The present invention is an eco-friendly process as it minimizes or eliminates the use of caustic which is conventionally used to remove the sulfur from LPG.
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