公开(公告)号：US2970968A

公开(公告)日：1961-02-07

申请号：US54424455

申请日：1955-11-01

Applicant: TEXACO INC

Inventor： RIORDAN MICHAEL D ,  FRANZ WILLIAM F

IPC: B01J8/08 ,  B01J20/32 ,  B01J29/70 ,  B01J29/89 ,  C10G1/06

CPC classification number: B01J29/89 ,  B01J8/087 ,  B01J20/0218 ,  B01J20/0225 ,  B01J20/06 ,  B01J20/18 ,  B01J20/28004 ,  B01J20/28016 ,  B01J20/28019 ,  B01J20/3007 ,  B01J20/3028 ,  B01J20/3078 ,  B01J20/3204 ,  B01J20/3236 ,  B01J20/3408 ,  B01J20/3458 ,  B01J20/3483 ,  B01J29/7003 ,  B01J2220/56 ,  C10G1/06

公开(公告)号：US3705077A

公开(公告)日：1972-12-05

申请号：US3705077D

申请日：1970-10-09

Applicant: TEXACO INC

Inventor： FRANZ WILLIAM F ,  HESS HOWARD V ,  COLE EDWARD L

IPC: D21C11/00 ,  D21C11/14

CPC classification number: D21C11/14 ,  D21C11/0028

Abstract: WASH WATER AND DIGESTER LIQUOR FROM A WOOD PULPING OPERATION ARE HEATED AT A TEMPERATURE IN THE RANGE OF 450*F. TO 700*F. UNDER AUTOGENEOUS PRESSURES OF ABOUT 1000 TO ABOUT 3000 P.S.I.G. FOR A PERIOD OF 0.5 MINUTE TO 6 HOURS TO FORM COKE AND A PURIFIED EFFLUENT. THE COKE IS SEPARATED FROM THE EFFLUENT AND DEWATERED. LIQUID FROM THIS DEWATERING STEP IS COMBINED WITH THE EFFLUENT AND DEPRESSURED TO FLASH VAPORIZE AND CONCENTRATE THE COMBIMED STREAM TO A SOLUBLE CHEMICALS CONCENTRATION SUITABLE FOR RECONSTITUTION AND RECYCLE TO THE PULPING OPERATION. COKE PRODUCED IN THE PROCESS MAY BE BURNED AS PLANT

FUEL AND THE ASH RECOVERED AND WORKED FOR CHEMICAL VALUES. THE LIQUID STREAM IS RECONSTITUTED FOR PULPING PURPOSES BY THE ADDITION THERETO OF PULPING CHEMICALS DERIVED, IN PART, BY BURNING THE COKE PRODUCED IN THE PROCESS.

公开(公告)号：US3598528A

公开(公告)日：1971-08-10

申请号：US3598528D

申请日：1969-06-27

Applicant: TEXACO INC

Inventor： FRANZ WILLIAM F ,  HESS HOWARD V

IPC: C01B31/00 ,  C10L9/02 ,  C01B31/02

CPC classification number: C10L9/02 ,  C01B32/00

Abstract: PETROLEUM COKE IS PURIFIED OF SULFUR AND METALLIC IMPURITIES BY HYDRODESULFURIZATION WITH SYNTHESIS GAS FOLLOWED BY PASSING THE RESULTING SYNTHESIS GAS, WHICH IS RELATIVELY RICH IN HYDROGEN SULFIDE, IN CONTACT WITH THE COKE, AT A TEMPERATURE AND PRESSURE AT WHICH THE HYDROGEN SULFIDE CATALYZES THE REACTION OF THE METALLIC IMPURITES WITH CARBON MONOXIDE TO FORM GASIFORM METALLIC CARBONYLS WHICH CAN BE PHYSICALLY SEPARATED FROM THE COKE.

公开(公告)号：US3595965A

公开(公告)日：1971-07-27

申请号：US3595965D

申请日：1969-06-27

Applicant: TEXACO INC

Inventor： FRANZ WILLIAM F ,  HESS HOWARD V

IPC: C10B55/00 ,  C10L9/02 ,  C01B31/02

CPC classification number: C10L9/02 ,  C10B55/00

Abstract: PURIFICATION OF PETROLEUM COKE HIGH IN SULFUR AND CONTAINING METALLIC IMPURITIES BY PASSING AN EXCESS OF SYNTHESIS GAS IN CONTACT WITH THE PREOXIDIZED COKE AT A TEMPERATURE AND PRESSURE AT WHICH THE CARBON MONOXIDE OF THE SYNTHESIS GAS IS CAUSED TO COMBINE WITH THE METALS, UNDER THE CATALYTIC EFFECT OF THE SULFUR IN THE COKE, TO FORM GASIFORM METAL CARBONYLS WHICH ARE READILY SEPARATED. THE RESULTING SYNTHESIS GAS IS THEN USED TO HYDRODESULFURIZE THE COKE UNDER APPROPRIATE CONDITIONS.

公开(公告)号：US3110661A

公开(公告)日：1963-11-12

申请号：US78852559

申请日：1959-01-23

Applicant: TEXACO INC

Inventor： FRANZ WILLIAM F

IPC: C10G67/04 ,  C10G67/14 ,  C10L1/04

CPC classification number: C10L1/04 ,  C10G2400/08