公开(公告)号：DE69721302D1

公开(公告)日：2003-05-28

申请号：DE69721302

申请日：1997-07-14

Applicant: TEXACO DEVELOPMENT CORP

Inventor： WINTER DUCKETT ,  BRICKHOUSE ELLIS ,  TYREE FREDERICK ,  STEVENSON SAUNDERS ,  MAYOTTE JOSEPH ,  KASSMAN SAMUEL ,  KLOCK VON

IPC: C08J11/10 ,  C01B3/36 ,  C07C1/02 ,  C08J11/14 ,  C10G1/00 ,  C10G1/10 ,  C10J3/66

Abstract: An integrated liquefaction and gasification process converts bulk particulate halogen-containing waste plastic materials with minimal particle size reduction into a synthesis gas and a non-leachable, vitreous environmentally nontoxic slag. The process involves melting and cracking bulk particulate halogen-containing waste plastic material to form a lower boiling point, lower molecular weight halogen-containing oil composition which then undergoes partial oxidation in a quench gasifier to produce a synthesis gas. Any hazardous gases, liquids or solids that are produced can be purified into commercially valuable byproducts or recycled to the process, which does not release hazardous materials to the environment.

公开(公告)号：DE69724825D1

公开(公告)日：2003-10-16

申请号：DE69724825

申请日：1997-07-14

Applicant: TEXACO DEVELOPMENT CORP

Inventor： WEBSTER HENRY ,  VON KLOCK BYRON ,  VUONG DONH-CUONG ,  STEVENSON SAUNDERS ,  JOHNSON ROBERT

IPC: C10J3/72 ,  C01B3/52 ,  C01C1/16 ,  C02F1/04 ,  C10J3/46 ,  C10K1/00 ,  C10K1/12 ,  C10K1/06 ,  C10K1/10

Abstract: A process for minimizing evaporator scaling during the recovery of liquids and solids from the aqueous effluent discharged during a partial oxidation gasification, wherein the aqueous effluent contains ammonium chloride (NH4Cl). The aqueous effluent is evaporated to produce a distillate water and a brine having an NH4Cl concentration of about 10 to 60 weight percent. The brine can be further concentrated and ammonium chloride crystals are recovered. The distillate water is recycled to the gasification reaction. No effluent discharges to the environment.

公开(公告)号：DE69724825T2

公开(公告)日：2004-04-08

申请号：DE69724825

申请日：1997-07-14

Applicant: TEXACO DEVELOPMENT CORP

Inventor： WEBSTER HENRY ,  VON KLOCK BYRON ,  VUONG DONH-CUONG ,  STEVENSON SAUNDERS ,  JOHNSON ROBERT

IPC: C10J3/72 ,  C01B3/52 ,  C01C1/16 ,  C02F1/04 ,  C10J3/46 ,  C10K1/00 ,  C10K1/12 ,  C10K1/06 ,  C10K1/10

Abstract: A process for minimizing evaporator scaling during the recovery of liquids and solids from the aqueous effluent discharged during a partial oxidation gasification, wherein the aqueous effluent contains ammonium chloride (NH4Cl). The aqueous effluent is evaporated to produce a distillate water and a brine having an NH4Cl concentration of about 10 to 60 weight percent. The brine can be further concentrated and ammonium chloride crystals are recovered. The distillate water is recycled to the gasification reaction. No effluent discharges to the environment.

公开(公告)号：DE69721302T2

公开(公告)日：2004-02-12

申请号：DE69721302

申请日：1997-07-14

Applicant: TEXACO DEVELOPMENT CORP

Inventor： WINTER DUCKETT ,  BRICKHOUSE ELLIS ,  TYREE FREDERICK ,  STEVENSON SAUNDERS ,  MAYOTTE JOSEPH ,  KASSMAN SAMUEL ,  KLOCK VON

IPC: C08J11/10 ,  C01B3/36 ,  C07C1/02 ,  C08J11/14 ,  C10G1/00 ,  C10G1/10 ,  C10J3/66

Abstract: An integrated liquefaction and gasification process converts bulk particulate halogen-containing waste plastic materials with minimal particle size reduction into a synthesis gas and a non-leachable, vitreous environmentally nontoxic slag. The process involves melting and cracking bulk particulate halogen-containing waste plastic material to form a lower boiling point, lower molecular weight halogen-containing oil composition which then undergoes partial oxidation in a quench gasifier to produce a synthesis gas. Any hazardous gases, liquids or solids that are produced can be purified into commercially valuable byproducts or recycled to the process, which does not release hazardous materials to the environment.