Processing natural gas to form longer-chain hydrocarbons

Details Processing natural gas to form longer-chain hydrocarbons Processing natural gas to form longer-chain hydrocarbons

2006-06-27

2006-06-27

Parsa, J. (Department: 1621)

Chemistry: fischer-tropsch processes; or purification or recover

Liquid phase fischer-tropsch reaction

C518S702000, C518S703000, C518S705000

Reexamination Certificate

active

07067560

ABSTRACT:
Natural gas is processed to generate longer-chain hydrocarbons, the process comprising subjecting the gas to steam reforming to generate a mixture of carbon monoxide and hydrogen, and then subjecting this mixture to Fischer-Tropsch synthesis. The reforming reaction (20) is performed at 0.4–0.5 MPa and the Fischer-Tropsch synthesis (50) at 1.8–2.1 MPa, and two compressors (36, 44) are used to raise the pressure, the gas mixture being cooled (26, 32, 40) before and after the first compressor (36). This reduces both the operating cost and capital cost of the plant.

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