EP1257502A1 - Procede d'oxydation selective de l'oxyde de carbone dans un flux contenant de l'hydrogene - Google Patents

Procede d'oxydation selective de l'oxyde de carbone dans un flux contenant de l'hydrogene

Info

Publication number
EP1257502A1
EP1257502A1 EP00993603A EP00993603A EP1257502A1 EP 1257502 A1 EP1257502 A1 EP 1257502A1 EP 00993603 A EP00993603 A EP 00993603A EP 00993603 A EP00993603 A EP 00993603A EP 1257502 A1 EP1257502 A1 EP 1257502A1
Authority
EP
European Patent Office
Prior art keywords
mixture
catalyst mixture
carbon monoxide
catalyst
temperature
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP00993603A
Other languages
German (de)
English (en)
Other versions
EP1257502A4 (fr
Inventor
Scott Brown
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ConocoPhillips Co
Original Assignee
Phillips Petroleum Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Phillips Petroleum Co filed Critical Phillips Petroleum Co
Publication of EP1257502A1 publication Critical patent/EP1257502A1/fr
Publication of EP1257502A4 publication Critical patent/EP1257502A4/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
    • B01J37/08—Heat treatment
    • B01J37/082—Decomposition and pyrolysis
    • B01J37/086—Decomposition of an organometallic compound, a metal complex or a metal salt of a carboxylic acid
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
    • B01J23/70—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper
    • B01J23/89—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with noble metals
    • B01J23/8906—Iron and noble metals
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J27/00—Catalysts comprising the elements or compounds of halogens, sulfur, selenium, tellurium, phosphorus or nitrogen; Catalysts comprising carbon compounds
    • B01J27/24—Nitrogen compounds
    • B01J27/25—Nitrates
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
    • B01J37/16—Reducing
    • B01J37/18—Reducing with gases containing free hydrogen
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B32/00—Carbon; Compounds thereof
    • C01B32/50—Carbon dioxide
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
    • B01J37/06—Washing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
    • B01J37/12—Oxidising
    • B01J37/14—Oxidising with gases containing free oxygen

Definitions

  • the invention relates to the catalytic oxidation of carbon monoxide.
  • the invention relates to the selective oxidation of carbon monoxide in the presence of hydrogen.
  • the invention relates to catalyst compositions effective in the oxidation of carbon monoxide.
  • the invention relates to removing as much carbon monoxide as possible, preferably all carbon monoxide, from a stream containing carbon monoxide and hydrogen, particularly, to provide hydrogen feedstock for fuel cells.
  • a fuel cell is an electrochemical device that enables converting the chemical energy of fuels directly to electricity.
  • the removal of carbon monoxide by selective oxidation of a stream containing both carbon monoxide and hydrogen can be accomplished using the same catalyst as used in carbon dioxide lasers by controlling an increased oxygen flow to the oxidation process, raising the operating temperature of the oxidation process and avoiding reaction between oxygen and hydrogen as compared to the conditions used to recombine carbon monoxide and oxygen in carbon dioxide lasers.
  • a process for the selective oxidation of carbon monoxide to carbon dioxide in a gaseous mixture comprising hydrogen and carbon monoxide.
  • an amount of free oxygen is mixed with the gaseous mixture comprising hydrogen and carbon monoxide to provide a second gaseous mixture having an enhanced oxygen to carbon monoxide mol ratio.
  • the second gaseous mixture is contacted with a catalyst comprising platinum and iron impregnated on a support material.
  • the carbon monoxide in the second gaseous mixture is thereby substantially completely converted to carbon dioxide.
  • the hydrogen will generally be in the range of about 50-90 volume percent and the inlet CO will generally be in the range of about 0.1 to about 5 volume percent.
  • the support material can be soaked in a solution containing platinum compounds and/or iron compounds or can be sprayed with such a solution to impregnate the support.
  • the ratio of impregnating solution to support material is generally such that the final composition of the catalyst contains 0.05 to about 10 weight percent platinum, preferably about 0.1 to about 5 weight percent platinum and about 0.05 to about 20 weight percent iron, preferably from about 0.1 to about 4 weight percent iron. It is in the scope of this invention to use any weight percentage of platinum and iron at which they act as copromoters of the oxidation of CO with O 2 . It is presently preferred to spray a solution containing compounds of both metals onto the support, but the metal compounds can also be added separately in any order.
  • the dried catalyst is heat treated in an oxidizing atmosphere, preferably in an atmosphere containing free oxygen (such as air) generally at a temperature ranging from about 80°C to about 700°C for a time ranging from about 0.5 hr to about 10 hours.
  • the heat treatment is preferably done in incremental substeps. Currently, the heat treatment is carried out at 150°C for 1 hour, 200°C for 2 hours and 400°C for 3 hours. Any combination of heating at a temperature for a time sufficient to calcine the impregnated support material to obtain at least one platinum oxide, optionally mixed with metallic platinum, and at least one iron oxide satisfies the requirements of this invention.
  • a temperature in the range of up to about 250°C applied for about an hour is usually sufficient for the purpose.
  • the dried, acid treated catalyst is heat treated in an oxidizing atmosphere, preferably in an atmosphere containing free oxygen (such as air) generally at a temperature ranging from about 80°C to about 700°C for a time ranging from about 0.5 hr to about 10 hours.
  • the heat treatment is preferably done in incremental substeps. Currently, the heat treatment is carried out at 150°C for 1 hour, 200°C for 2 hours and 400 °C for 3 hours. Any combination of heating at a temperature for a time sufficient to calcine the impregnated support material to obtain at least one platinum oxide, optionally mixed with metallic platinum, and at least one iron oxide satisfies the requirements of this invention.
  • Catalyst A A 202 gram portion of catalyst precursor was transferred to a 2 inch diameter quartz reactor which was then mounted in a vertical tube furnace.
  • the catalyst was activated by reducing at 300°C with about 200 cc/min hydrogen gas downflow at atmospheric pressure for three hours.
  • the catalyst and reactor were cooled under hydrogen flow followed by nitrogen purge thereby providing an activated catalyst. This is Catalyst A.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Catalysts (AREA)
  • Carbon And Carbon Compounds (AREA)
  • Hydrogen, Water And Hydrids (AREA)

Abstract

La présente invention concerne un procédé d'oxydation sélective de CO en CO2dans une charge d'hydrogène en présence d'un catalyseur contenant du platine et du fer. Le catalyseur peut être traité à l'acide.
EP00993603A 1999-12-28 2000-11-10 Procede d'oxydation selective de l'oxyde de carbone dans un flux contenant de l'hydrogene Withdrawn EP1257502A4 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US47315799A 1999-12-28 1999-12-28
US473157 1999-12-28
PCT/US2000/042050 WO2001047806A1 (fr) 1999-12-28 2000-11-10 Procede d'oxydation selective de l'oxyde de carbone dans un flux contenant de l'hydrogene

Publications (2)

Publication Number Publication Date
EP1257502A1 true EP1257502A1 (fr) 2002-11-20
EP1257502A4 EP1257502A4 (fr) 2007-04-25

Family

ID=23878436

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00993603A Withdrawn EP1257502A4 (fr) 1999-12-28 2000-11-10 Procede d'oxydation selective de l'oxyde de carbone dans un flux contenant de l'hydrogene

Country Status (11)

Country Link
EP (1) EP1257502A4 (fr)
JP (1) JP2003519067A (fr)
KR (1) KR20020074465A (fr)
CN (1) CN1414923A (fr)
AU (1) AU774521B2 (fr)
BR (1) BR0016815A (fr)
CA (1) CA2395761A1 (fr)
MX (1) MXPA02006437A (fr)
NO (1) NO20023180L (fr)
RU (1) RU2248323C2 (fr)
WO (1) WO2001047806A1 (fr)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20020061277A1 (en) 2000-09-25 2002-05-23 Engelhard Corporation Non-pyrophoric water-gas shift reaction catalysts
JP4812248B2 (ja) 2003-01-22 2011-11-09 日東電工株式会社 燃料電池
US7029640B2 (en) 2003-06-17 2006-04-18 Conocophillips Company Process for selective oxidation of carbon monoxide in a hydrogen containing stream
US20050255028A1 (en) * 2004-05-17 2005-11-17 Jianhua Yao Process for selective oxidation of carbon monoxide in a hydrogen containing stream
KR101193163B1 (ko) * 2005-10-21 2012-10-19 삼성에스디아이 주식회사 일산화탄소 산화 촉매 및 그의 제조 방법
EP2565176B1 (fr) * 2006-05-08 2015-08-19 Virent, Inc. Procédés pour générer des polyols
US7439206B2 (en) 2006-07-18 2008-10-21 Conocophillips Company Process for selective oxidation of carbon monoxide in a hydrogen containing stream
US20180029003A1 (en) * 2015-02-25 2018-02-01 SGC Energia Co., LLC Systems, methods, and apparatuses for fischer-tropsch reactor cascade

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5017357A (en) * 1989-06-14 1991-05-21 Phillips Petroleum Company Catalytic process for oxidation of carbon monoxide
RU2069584C1 (ru) * 1994-11-24 1996-11-27 Виктор Владимирович Барелко Катализатор для химических процессов, например конверсии аммиака, окисления углеводородов, диоксида серы, очистки выхлопных газов
US6093670A (en) * 1998-12-11 2000-07-25 Phillips Petroleum Company Carbon monoxide oxidation catalyst and process therefor

Also Published As

Publication number Publication date
RU2002120497A (ru) 2004-01-27
AU774521B2 (en) 2004-07-01
JP2003519067A (ja) 2003-06-17
BR0016815A (pt) 2002-10-01
NO20023180L (no) 2002-08-19
AU2923901A (en) 2001-07-09
WO2001047806A1 (fr) 2001-07-05
CA2395761A1 (fr) 2001-07-05
RU2248323C2 (ru) 2005-03-20
KR20020074465A (ko) 2002-09-30
EP1257502A4 (fr) 2007-04-25
MXPA02006437A (es) 2002-11-29
NO20023180D0 (no) 2002-06-28
CN1414923A (zh) 2003-04-30

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