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公开(公告)号：CA2260205C
公开(公告)日：2002-06-04
申请号：CA2260205
申请日：1997-07-14
Applicant: TEXACO DEVELOPMENT CORP
Inventor： WEBSTER GEORGE HENRY JR , VUONG DINH-CUONG , JOHNSON STEVEN ROBERT , STEVENSON JOHN SAUNDERS , VON KLOCK BYRON
Abstract: The invention relates to a process for minimizing evaporator scaling during the recovery of liquids and solids from the aqueous effluent discharged duri ng a partial oxidation gasification from a gasifier (16), wherein the aqueous effluent contains ammonium chloride. The aqueous effluent is evaporated in a n evaporator (106) to produce a distillate water line (110) and a line containing brine (112) with a brine concentration of about 10 to 60 weight percent. The brine can be further concentrated and ammonium chloride crystal s are recovered. The distillate is recycled to the gasification reaction. No effluent discharges to the environment.
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公开(公告)号：CZ289471B6
公开(公告)日：2002-01-16
申请号：CZ223093
申请日：1993-10-21
Applicant: TEXACO DEVELOPMENT CORP
Inventor： KHAN MOTASIMUR RASHID ING , ALBERT CHRISTINE CORNELIA , STEVENSON JOHN SAUNDERS , RICHTER GEORGE NEAL , CRIKELAIR DAVID CHARLES
Abstract: In the present invention there is disclosed a process for disposing of scrap plastic and/or waste material comprising: (1) mixing together (a) solid carbonaceous plastic-containing material that contains associated inorganic matter, shredded to particle size to 6.3 mm and comprising at least one material selected from the group consisting of titania, talc, clays, alumina, glass, barium sulfate, and barium carbonate; compounds of Sn, Co, Mn, Pb, Cd, Cr, Cu, B; and steel, nickel, aluminum, brass and copper metal; (b) aluminosilicate-containing material having noncombustible constituents that have an ash fusion temperature in a reducing atmosphere of less than about 1316 degC; wherein said aluminosilicate containing material is selected from the group consisting of coal, coal mine tailings, coal ash, illite clay, volcanic ash, and mixtures thereof; and wherein said aluminosilicate-containing material has a maximum particle size 1.70 mm; a weight ratio of noncombustible constituents in said aluminosilicate-containing material to the inorganic matter in said solid carbonaceous plastic-containing material of at least 1 to 1; and a mole ratio SiO2/Al2O3 in the range of about 1.5 : 1 to 20 : 1; and (c) a liquid slurrying medium selected from the group consisting of water, liquid hydrocarbonaceous fuel, and mixtures thereof; and (2) reacting said pumpable slurry from the step (1) having a minimum HHV of about 10.5 MJ/Kg of slurry with a free-oxygen containing gas to produce synthesis gas, reducing gas, or fuel gas.
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公开(公告)号：NO20011559A
公开(公告)日：2001-03-27
申请号：NO20011559
申请日：2001-03-27
Applicant: TEXACO DEVELOPMENT CORP
Inventor： STEVENSON JOHN SAUNDERS , SANTOS KENT W , ZACHARIOU GUS
CPC classification number: G01K1/10
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公开(公告)号：DE69606597T2
公开(公告)日：2000-07-06
申请号：DE69606597
申请日：1996-09-19
Applicant: TEXACO DEVELOPMENT CORP
Inventor： WINTER JOHN DUCKETT , STEVENSON JOHN SAUNDERS , KASSMAN JERROLD SAMUEL , WIESE HARRY CLARENCE , RICHTER GEORGE NEAL , KOCSIS LISA MARIE , SALVELEON RINALDO IBBAROLA
IPC: B09B3/00 , C10J3/46 , C10J3/54 , C22B7/00 , C22B7/02 , C22B7/04 , C22B13/00 , C22B17/00 , C22B19/20 , C25C1/16 , C25C1/18
Abstract: A method is disclosed for recovering condensed solidified volatile metals from slag that exits the reactor section of a partial oxidation reactor. In a partial oxidation reactor, condensed solidified volatile metals become adsorbed onto the surface of the slag particles and other particulate matter associated with the gasification reaction, such as ash and soot. These particulate materials are removed and recovered. Finely divided slag particles are separated and contacted with a mineral acid to dissolve the adsorbed condensed volatile metals. An acid liquor is obtained from which the dissolved volatile metals are recovered by electrolysis.
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公开(公告)号：DK0765944T3
公开(公告)日：2000-05-15
申请号：DK96306803
申请日：1996-09-19
Applicant: TEXACO DEVELOPMENT CORP
Inventor： WINTER JOHN DUCKETT , WIESE HARRY CLARENCE , RICHTER GEORGE NEAL , KOCSIS LISA MARIE , SALVELEON RINALDO IBBAROLA , STEVENSON JOHN SAUNDERS , KASSMAN JERROLD SAMUEL
IPC: B09B3/00 , C10J3/46 , C10J3/54 , C22B7/00 , C22B7/02 , C22B7/04 , C22B13/00 , C22B17/00 , C22B19/20 , C25C1/16 , C25C1/18
Abstract: A method is disclosed for recovering condensed solidified volatile metals from slag that exits the reactor section of a partial oxidation reactor. In a partial oxidation reactor, condensed solidified volatile metals become adsorbed onto the surface of the slag particles and other particulate matter associated with the gasification reaction, such as ash and soot. These particulate materials are removed and recovered. Finely divided slag particles are separated and contacted with a mineral acid to dissolve the adsorbed condensed volatile metals. An acid liquor is obtained from which the dissolved volatile metals are recovered by electrolysis.
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Patent Agency Ranking
公开(公告)号：AU713393B2
公开(公告)日：1999-12-02
申请号：AU3730997
申请日：1997-07-14
Applicant: TEXACO DEVELOPMENT CORP
Inventor： WINTER JOHN DUCKETT , BRICKHOUSE PAUL ELLIS , TYREE RONALD FREDERICK , STEVENSON JOHN SAUNDERS , MAYOTTE GREGORY JOSEPH , KASSMAN JERROLD SAMUEL , KLOCK BYRON VON
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.
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公开(公告)号：AU710505B2
公开(公告)日：1999-09-23
申请号：AU4040797
申请日：1997-07-14
Applicant: TEXACO DEVELOPMENT CORP
Inventor： WEBSTER GEORGE HENRY , KLOCK BYRON VON , VUONG DONH-CUONG , STEVENSON JOHN SAUNDERS , JOHNSON STEVEN ROBERT
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.
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公开(公告)号：CZ9900147A3
公开(公告)日：1999-06-16
申请号：CZ14799
申请日：1997-07-14
Applicant: TEXACO DEVELOPMENT CORP
Inventor： WEBSTER GEORGE HENRY JR , VON KLOCK BYRON , VUONG DINH-CUONG , STEVENSON JOHN SAUNDERS , JOHNSON STEVEN ROBERT
CPC classification number: C01C1/164 , C01B3/52 , C01B2203/0415 , C01B2203/0465 , C01B2203/0485 , C01B2203/0495 , C02F1/042 , C10J3/466 , C10J3/84 , C10J2300/0926 , C10J2300/093 , C10J2300/169 , C10J2300/1807 , C10J2300/1846 , C10K1/00 , C10K1/002 , C10K1/10 , C10K1/101 , Y10S159/13
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公开(公告)号：NO990115D0
公开(公告)日：1999-01-12
申请号：NO990115
申请日：1999-01-12
Applicant: TEXACO DEVELOPMENT CORP
Inventor： WEBSTER GEORGE HENRY , KLOCK BYRON VON , VUONG DONH-CUONG , STEVENSON JOHN SAUNDERS , JOHNSON STEVEN ROBERT
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.
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公开(公告)号：AU4040797A
公开(公告)日：1998-02-09
申请号：AU4040797
申请日：1997-07-14
Applicant: TEXACO DEVELOPMENT CORP
Inventor： WEBSTER GEORGE HENRY , KLOCK BYRON VON , VUONG DONH-CUONG , STEVENSON JOHN SAUNDERS , JOHNSON STEVEN ROBERT
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.
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