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1. WO1997045887 - METHOD AND APPARATUS FOR DESULFURIZING FUEL GAS

Publication Number WO/1997/045887
Publication Date 04.12.1997
International Application No. PCT/US1997/008822
International Filing Date 27.05.1997
Chapter 2 Demand Filed 23.12.1997
IPC
B01D 53/86 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
53Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases or aerosols
34Chemical or biological purification of waste gases
74General processes for purification of waste gases; Apparatus or devices specially adapted therefor
86Catalytic processes
B01J 8/04 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
8Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes
02with stationary particles, e.g. in fixed beds
04the fluid passing successively through two or more beds
C01B 3/48 2006.01
CCHEMISTRY; METALLURGY
01INORGANIC CHEMISTRY
BNON-METALLIC ELEMENTS; COMPOUNDS THEREOF
3Hydrogen; Gaseous mixtures containing hydrogen; Separation of hydrogen from mixtures containing it; Purification of hydrogen
02Production of hydrogen or of gaseous mixtures containing hydrogen
32by reaction of gaseous or liquid organic compounds with gasifying agents, e.g. water, carbon dioxide, air
34by reaction of hydrocarbons with gasifying agents
48followed by reaction of water vapour with carbon monoxide
C01B 3/58 2006.01
CCHEMISTRY; METALLURGY
01INORGANIC CHEMISTRY
BNON-METALLIC ELEMENTS; COMPOUNDS THEREOF
3Hydrogen; Gaseous mixtures containing hydrogen; Separation of hydrogen from mixtures containing it; Purification of hydrogen
50Separation of hydrogen or hydrogen containing gases from gaseous mixtures, e.g. purification
56by contacting with solids; Regeneration of used solids
58including a catalytic reaction
C01B 17/04 2006.01
CCHEMISTRY; METALLURGY
01INORGANIC CHEMISTRY
BNON-METALLIC ELEMENTS; COMPOUNDS THEREOF
17Sulfur; Compounds thereof
02Preparation of sulfur; Purification
04from gaseous sulfur compounds including gaseous sulfides
H01M 8/06 2006.01
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
8Fuel cells; Manufacture thereof
06Combination of fuel cells with means for production of reactants or for treatment of residues
CPC
B01D 53/8603
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
53Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols,
34Chemical or biological purification of waste gases
74General processes for purification of waste gases; Apparatus or devices specially adapted therefor
86Catalytic processes
8603Removing sulfur compounds
B01D 53/8618
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
53Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols,
34Chemical or biological purification of waste gases
74General processes for purification of waste gases; Apparatus or devices specially adapted therefor
86Catalytic processes
8603Removing sulfur compounds
8612Hydrogen sulfide
8618Mixtures of hydrogen sulfide and carbon dioxides
B01J 2208/00141
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
2208Processes carried out in the presence of solid particles; Reactors therefor
00008Controlling the process
00017Controlling the temperature
00106by indirect heat exchange
00115with heat exchange elements inside the bed of solid particles
00141Coils
B01J 2208/00194
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
2208Processes carried out in the presence of solid particles; Reactors therefor
00008Controlling the process
00017Controlling the temperature
00106by indirect heat exchange
00168with heat exchange elements outside the bed of solid particles
00194Tubes
B01J 2208/00495
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
2208Processes carried out in the presence of solid particles; Reactors therefor
00008Controlling the process
00017Controlling the temperature
00477by thermal insulation means
00495using insulating materials or refractories
B01J 2208/0053
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
2208Processes carried out in the presence of solid particles; Reactors therefor
00008Controlling the process
00017Controlling the temperature
0053Controlling multiple zones along the direction of flow, e.g. pre-heating and after-cooling
Applicants
  • INTERNATIONAL FUEL CELLS CORPORATION [US]/[US]
Inventors
  • SEDERQUIST, Richard, A.
  • SZYDLOWSKI, Donald, F.
  • CORRIGAN, Thomas, J.
  • BONK, Stanley, P.
  • LESIEUR, Roger, R.
Agents
  • KELLY, Robert, H.
  • KLUNKER, SCHMITT-NILSON, HIRSCH
Priority Data
656,56831.05.1996US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) METHOD AND APPARATUS FOR DESULFURIZING FUEL GAS
(FR) PROCEDE ET APPAREIL DE DESULFURATION DU GAZ COMBUSTIBLE
Abstract
(EN)
Sulfur and sulfur compounds are removed from a gas stream, such as a hydrocarbon fuel gas stream so as to render the gas stream suitable for use in a fuel cell power plant. Natural gas and recycled hydrogen enters the hydrodesulfurizer assembly at a temperature of about 120 °F. The gas stream is heated to a temperature of about 625 °F whereupon it enters a desulfurizing bed (44) formed from a mixture of platinum catalyst deposited on alumina pellets (46) and a pelletized zinc oxide hydrogen sulfide absorbent (48). The gas is cooled to an exit temperature of about 525 °F as it passes through the desulfurizer bed. The desulfurizer bed is combined with a shift converter (6) which reduces carbon monoxide in the desulfurized gas stream after the latter has passed through a steam reformer bed.
(FR)
L'invention porte sur un système permettant d'éliminer le soufre et les composés soufrés d'un courant de gaz combustible tel que du gaz d'hydrocarbures pour en permettre son utilisation dans des générateurs à piles à combustible. Le gaz naturel ou l'hydrogène recyclé pénètre dans l'ensemble de désulfuration à une température d'environ 120 °F, puis il est chauffé jusqu'à 625 °F et il passe alors sur un lit de désulfuration (44) fait d'un mélange de pastilles d'alumine (46) et de pastilles revêtues d'un catalyseur de platine et de pastilles d'oxyde de zinc (48) absorbant le sulfure d'hydrogène. Le gaz est ramené à sa température de sortie de 525 °F pendant qu'il traverse le lit désulfurant. Ce dernier est associé à un convertisseur catalytique (6) qui réduit le CO du gaz désulfuré après son passage par un lit de reformage à la vapeur.
Also published as
Latest bibliographic data on file with the International Bureau