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公开(公告)号:US20180291288A1
公开(公告)日:2018-10-11
申请号:US15933422
申请日:2018-03-23
Applicant: ExxonMobil Research and Engineering Company
Inventor: Stephen H. BROWN , Brian A. CUNNINGHAM , Randolph J. SMILEY , Samia ILIAS , Brenda A. RAICH , Tien V. LE
Abstract: Systems and methods are provided for improving the processing of heavy or challenged feeds in a refinery based on integrated use of deasphalting, coking, and hydroprocessing. An optional fluid catalytic cracking unit can be included in the integrated system to allow for further improvements. The improved processing can be facilitated based on a process configuration where the vacuum resid fractions and/or other difficult fractions are deasphalted to generate a deasphalted oil and a deasphalter residue or rock fraction. The deasphalted oil can be passed into a hydroprocessing unit for further processing. The rock fraction can be used as the feed to a coking unit. Although deasphalter residue or rock is typically a feed with a high content of micro carbon residue, a high lift deasphalting process can allow a portion of the micro carbon residue in the initial feed to remain with the deasphalted oil. The portion of micro carbon residue that remains in the deasphalted oil can then be upgraded during hydroprocessing and/or during subsequent processing of the feed. By reducing the amount of micro carbon residue passed into a coker for a given initial feed source, the overall capacity for a reaction system to handle heavy feeds can be increased relative to the rate of coke production from the reaction system.
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公开(公告)号:US20180291290A1
公开(公告)日:2018-10-11
申请号:US15928423
申请日:2018-03-22
Applicant: ExxonMobil Research and Engineering Company
Inventor: Stephen H. BROWN , Brian A. CUNNINGHAM , Randolph J. SMILEY , Samia ILIAS , Keith K. ALDOUS , Sara K. GREEN , Patrick L. HANKS , Kendall S. FRUCHEY
Abstract: Systems and methods are provided for upgrading catalytic slurry oil. The upgrading can be performed by deasphalting the catalytic slurry oil to form a deasphalted oil and a residual or rock fraction. The deasphalted oil can then be hydroprocessed to form an upgraded effluent that includes fuels boiling range products.
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公开(公告)号:US20180170825A1
公开(公告)日:2018-06-21
申请号:US15830171
申请日:2017-12-04
Applicant: ExxonMobil Research and Engineering Company
Inventor: Samia ILIAS , Brett T. Loveless , Stephen J. McCarthy , Brandon J. O'NEILL
CPC classification number: C07C2/12 , B01J29/40 , B01J29/70 , B01J29/7026 , B01J29/703 , B01J29/7034 , B01J29/7038 , B01J29/7046 , C07C1/20 , C07C2529/40 , C07C2529/70 , C10G3/42 , C10G50/00 , C10G2300/1092 , C10G2400/04 , C10G2400/08 , Y02P30/20 , C07C11/02
Abstract: Processes and reaction systems for low pressure oligomerization of olefins to produce distillate boiling range products using zeolite catalysts are provided herein.
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公开(公告)号:US20180291291A1
公开(公告)日:2018-10-11
申请号:US15928436
申请日:2018-03-22
Applicant: ExxonMobil Research and Engineering Company
Inventor: Stephen H. BROWN , Brian A. CUNNINGHAM , Randolph J. SMILEY , Samia ILIAS , Brenda A. RAICH , Tien V. LE
Abstract: Systems and methods are provided for upgrading a mixture of catalytic slurry oil and coker bottoms by hydroprocessing. Optionally, the upgrading can further include deasphalting the mixture of catalytic slurry oil and coker bottoms to form a deasphalted oil and a deasphalter residue or rock fraction. The mixture of catalytic slurry oil and coker bottoms and/or the deasphalted oil can then be hydroprocessed to form an upgraded effluent that includes fuels boiling range products. Optionally, in some aspects where the feed mixture is deasphalted prior to hydroprocessing, the feed mixture can further include a portion of a (sour) vacuum resid.
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公开(公告)号:US20180291287A1
公开(公告)日:2018-10-11
申请号:US15937987
申请日:2018-03-28
Applicant: ExxonMobil Research and Engineering Company
Inventor: Stephen H. BROWN , Brian A. CUNNINGHAM , Randolph J. SMILEY , Samia ILIAS , Brenda A. RAICH , Tien V. LE
Abstract: Systems and methods are provided for improving operation of a fluid catalytic cracker as part of an integrated processing environment including a deasphalting unit and a hydroprocessor. Optionally, a coker can be included in the integrated system to allow for further improvements. The improved processing can be facilitated based on a process configuration where a combination of deasphalting and hydroprocessing are used to perform conversion on more refractory compounds, so that the fluid catalytic cracker can be operated at lower severity conditions. This can allow for improved production of desirable olefins and reduced production of light paraffins and coke. Additionally or alternately, the processing configuration can allow the bottoms fraction from fluid catalytic cracking to be incorporated into a higher value use than the typical regular sulfur fuel oil disposition.
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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.
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