Process of producing a high-methane gas interchangeable with natural gas
Metallgesellschaft AG's new process produces high-methane-content gas while limiting carbon deposition during methanation by reducing the proportion of carbon dioxide in the methanator feed gas. A mixture of naphtha or other liquid hydrocarbons, steam (steam/hydrocarbon ratio of less than 1), and recycled methane-rich gas (90% methane) containing water vapor is reacted over a nickel catalyst at 662 to 1112/sup 0/F and elevated pressure to produce a rich gas containing CO/sub 2/. This rich gas is cooled by sprinkling it with cold water from a saturation zone. The CO/sub 2/ is then removed and the product gas divided into two partial streams, the ratio of the first to the second being 0.61 to 1.20. The second stream is heated and enriched with water vapor by contacting it in the saturation zone with heated trickling water. The second stream is combined with the liquid hydrocarbon feedstock as the recycled methane-rich gas.
- Assignee:
- Metallgesellschaft AG
- Patent Number(s):
- US 3990867
- OSTI ID:
- 6743052
- Country of Publication:
- United States
- Language:
- English
Similar Records
Conversion of methanol to gasoline
Steam cracking feed gas saturation
Related Subjects
10 SYNTHETIC FUELS
ALKANES
CARBON COMPOUNDS
CARBON DIOXIDE
CARBON OXIDES
CATALYTIC EFFECTS
CHALCOGENIDES
CHEMICAL REACTIONS
COAL TAR OILS
CRYOGENIC FLUIDS
DISPERSIONS
DISTILLATES
ELEMENTS
ENERGY SOURCES
FLUIDS
FOSSIL FUELS
FUEL GAS
FUELS
GAS FUELS
GASES
HIGH BTU GAS
HIGH TEMPERATURE
HYDROCARBONS
METALS
METHANATION
METHANE
MIXTURES
NAPHTHA
NICKEL
OILS
ORGANIC COMPOUNDS
OTHER ORGANIC COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
PETROLEUM
PETROLEUM DISTILLATES
PETROLEUM FRACTIONS
PRODUCTION
TRANSITION ELEMENTS
VAPORS
WATER VAPOR