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公开(公告)号:US20180134972A1
公开(公告)日:2018-05-17
申请号:US15790223
申请日:2017-10-23
Applicant: ExxonMobil Research and Engineering Company
Inventor: Stephen H. BROWN , Brian A. CUNNINGHAM , Randolph J. SMILEY , Samia ILIAS , Jesse R. McMANUS , Aldrin G. CUEVAS , Teng XU , Gregory R. JOHNSON , John P. GREELEY
CPC classification number: C10G45/20 , B01D21/02 , B01J8/0278 , B03C5/02 , C10G45/08 , C10G67/02 , C10G67/0454 , C10G2300/1003 , C10G2300/107 , C10G2300/202 , C10G2300/207 , C10G2300/208 , C10G2300/301 , C10G2300/308 , C10L1/04 , C10L2200/0438 , C10L2290/24 , C10L2290/38 , C10L2290/543 , C10L2290/547
Abstract: Systems and methods are provided for upgrading blends of catalytic slurry oil and steam cracker tar to form fuel and/or fuel blending products. The steam cracker tar can optionally correspond to a fluxed steam cracker tar that includes steam cracker gas oil and/or another type of gas oil or other diluent. It has been unexpectedly discovered that blends of catalytic slurry oil and steam cracker tar can be hydroprocessed under fixed bed conditions while reducing or minimizing the amount of coke formation on the hydroprocessing catalyst and/or while reducing or minimizing plugging of the fixed bed, as would be conventionally expected during fixed bed processing of a feed containing a substantial portion of steam cracker tar. Additionally or alternately, it has been unexpectedly discovered that formation of coke fines within steam cracker tar can be reduced or minimized by blending steam cracker tar with catalytic slurry oil. This can facilitate fixed bed processing of the steam cracker tar, as after removal of particles the blend of catalytic slurry oil and steam cracker tar can maintain a reduced or minimized level of coke fines and/or other particles.