公开(公告)号：US3591655A

公开(公告)日：1971-07-06

申请号：US3591655D

申请日：1968-12-16

Applicant: TEXACO INC

Inventor： LEWIS RALPH M ,  MOORER HENRY D ,  FRANCIS JAMES O

IPC: C07C2/62 ,  C07C3/54

CPC classification number: C07C2/62 ,  C07C2527/054 ,  Y10S585/903

Abstract: PROCESS FOR OBTAINING IMPROVED REFRIGERATION RESULTS IN SULFURIC ACID ALKYLATION UTILIZING TWO ALKYLATION REACTOR: THE EMULSION OF ACID AND HYDROCARBON FROM ONE REACTOR IS FLASHED AND THE RESULTING MIXTURE IS SEPARATED INTO A COLD ACID PHASE AND A COLD HYDROCARBON PHASE. THE ACID PHASE IS USED TO COOL THIS REACTOR WHILE THE HYDROCARBON PAHSE IS COMBINED WITH THE REACTION MIXTURE FRM THE OTHER REACTOR TO PROVIDE TEMPERATURE REDUCTION. THE REACTION MIXTURE OF THIS REACTOR IS SEPARATED INTO ACID AND HYDROCARBON PHASES, THE ACID PHASE RETURNED TO SAID REACTOR AND PORTIONS OF THE HYDROCARBON PHASE IS PASSED THROUGH THE TUBE BUNDLES IN EACH REACTOR. PRESSURE REDUCTION PROVIDES EFFLUENT COOLING IN ONE OF THE REACTORS.

公开(公告)号：US3619418A

公开(公告)日：1971-11-09

申请号：US3619418D

申请日：1969-06-30

Applicant: TEXACO INC

Inventor： LEWIS RALPH M

IPC: C07C7/13 ,  C10G25/03 ,  C07C7/12 ,  C10G25/04

CPC classification number: C10G25/00 ,  C07C7/13 ,  C10G25/03

Abstract: Improved process for the separation of straight chain hydrocarbons from petroleum fractions containing same admixed with nonstraight chain hydrocarbons by a molecular sieve selective adsorbent of Type 5A structure wherein a first desorbing medium of relatively low purity with respect to its straight chain hydrocarbon content is used as the first desorbing medium of the process to produce a final desorbing medium having a relatively high purity in straight chain hydrocarbon content while producing straight chain hydrocarbon products.

公开(公告)号：US3373103A

公开(公告)日：1968-03-12

申请号：US52405066

申请日：1966-02-01

Applicant: TEXACO INC

Inventor： COOPER DAVID E ,  LEWIS RALPH M ,  MOORER HENRY D ,  SMITH BENJAMIN F

IPC: C10G25/03

CPC classification number: C10G25/03

公开(公告)号：US3652708A

公开(公告)日：1972-03-28

申请号：US3652708D

申请日：1970-06-24

Applicant: TEXACO INC

Inventor： LEWIS RALPH M ,  LEWIS CHARLES T JR ,  TUPPER GEORGE B ,  POPKEN GARY D

IPC: C01B17/92 ,  C07C2/62 ,  C07C3/54

CPC classification number: C01B17/925 ,  C07C2/62

Abstract: HYDROCARBON CONTENT OF SPENT SULFURIC ACID IS REDUCED BY HEATING WITH AGITATION AT A TEMPERATURE OF 260-275*F. IN ADMIXTURE WITH A HYDROCARBON WHICH IS NON-BOILING AT THIS TEMPERATURE. METHOD IS APPLICABLE TO A RESIDUE ACID OBTAINED BY ABSORBING PROPYLENE IN USED SULFURIC ACID ALKYLATION CATALYST TO FORM DISOPROPYL SULFATE AND EXTRACTING DIPROPYL SULFATE THEREFROM WITH ISOBUTANE. SULFUR DIOXIDE AND PROPYLENE ARE EVOLVED AS OFF GASES.

公开(公告)号：US3580962A

公开(公告)日：1971-05-25

申请号：US3580962D

申请日：1969-06-30

Applicant: TEXACO INC

Inventor： MOORER HENRY D ,  LEWIS RALPH M ,  STOKELD RICHARD W JR

IPC: C07C2/62 ,  C07C3/54

CPC classification number: C07C2/62 ,  C07C2527/054

Abstract: METHOD FOR REFRIGERATION OF A SULFURIC ACID ALKYLATION PROCESS OPERATED IN CONJUNCTION WITH AN ASSOCIATED ACID RECOVERY PROCESS INVOLVING REACTING USED ACID WITH OLEFIN FEED IN AN ABSORBER, EXTRACTING RESULTING DIALKYL SULFATES, ACID TREATING THE EXTRACT SOLUTION AND PASSING THE TREATED SOLUTION TO ALKYLATION. THE ACID TREATED EXTRACT SOLUTION IS VAPORIZED AND PASSED IN INDIRECT EXCHANGE WITH CONTENTS OF ABSORBER AND ALKYLATION REACTOR. VAPORIZED ISOBUTANE MAY BE SEPARATED, RECOMPRESSED, COOLED AND RETURNED AS A LIQUID FOR COMBINATION WITH THE ACID TREATED EXTRACT STREAM FOR ADDITIONAL COOLING CAPACITY.

公开(公告)号：US3520801A

公开(公告)日：1970-07-21

申请号：US3520801D

申请日：1968-06-10

Applicant: TEXACO INC

Inventor： LEWIS RALPH M ,  STOKELD RICHARD W JR

IPC: B01D15/00 ,  C07C1/00 ,  C07C7/13 ,  C07C9/14 ,  C07C67/00 ,  C10G25/03 ,  C10G25/04 ,  C07C7/12

CPC classification number: C10G25/03 ,  C07C7/13