Process of producing gases having a high calorific value

Patent · Tue Apr 04 04:00:00 EST 1978

OSTI ID:6526294

Baron, G; Bierbach, H; Hafke, C; Pockrandt, G

In the production of a gas having a high calorific value and containing more than about 50% methane by volume by a process comprising gasifying a solid fuel under a pressure of about 5 to 150 bars by a treatment with oxygen and water vapor to produce a water vapor-containing raw gas at a temperature of about 350/sup 0/ to 700/sup 0/C, the improvement comprises further reacting the water vapor-containing raw gas under a pressure of about 5 to 150 bars with oxygen in a succeeding reactor to produce an intermediate product gas which contains mainly hydrogen, carbon oxides, and methane and which leaves the reactor at a temperature between about 600/sup 0/ and 950/sup 0/C, cooling the intermediate product gas and freeing the intermediate product gas from sulfur compounds. A dust fuel and/or liquid hydrocarbon can be added to the raw gas as such or after prereaction with oxygen, the addition advantageously taking place in the succeeding reactor. The reactor may contain a granular bed of a catalyst such as nickel, cobalt or chromium oxide and/or sulfide, and/or a contact material or catalyst support such as an oxide, spinel or silicate of aluminum and/or magnesium. The bed can be fluidized or otherwise mechanically moved.

• Assignee: Ruhrgas AG
• Patent Number(s): US 4082520
• OSTI ID: 6526294
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
010404 -- Coal
Lignite
& Peat-- Gasification
090121* -- Hydrocarbon Fuels-- Chemical Synthesis-- (1976-1989)
10 SYNTHETIC FUELS
ALKANES
CATALYTIC EFFECTS
CHALCOGENIDES
CHEMICAL REACTIONS
COAL GASIFICATION
COBALT COMPOUNDS
COBALT OXIDES
COBALT SULFIDES
CRYOGENIC FLUIDS
ENERGY SOURCES
FLUIDS
FUEL GAS
FUELS
GAS FUELS
GASES
GASIFICATION
HIGH PRESSURE
HIGH TEMPERATURE
HYDROCARBONS
MEDIUM PRESSURE
METHANATION
METHANE
MOLYBDENUM COMPOUNDS
MOLYBDENUM OXIDES
MOLYBDENUM SULFIDES
NICKEL COMPOUNDS
NICKEL OXIDES
NICKEL SULFIDES
ORGANIC COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
SULFIDES
SULFUR COMPOUNDS
SYNTHESIS
SYNTHESIS GAS
THERMOCHEMICAL PROCESSES
TRANSITION ELEMENT COMPOUNDS