Process and apparatus for ammonia synthesis gas production

Details Process and apparatus for ammonia synthesis gas production Process and apparatus for ammonia synthesis gas production

1984-02-07

1986-06-03

Trousof, Natalie

Compositions

Gaseous compositions

Nitrogen and hydrogen containing

C01B 326

Patent

active

045928606

ABSTRACT:
A fluid hydrocarbon feed stream is converted with excess air to a mixture of hydrogen and carbon monoxide, also containing the nitrogen content of said air. Following high temperature shift conversion to convert said carbon monoxide to hydrogen and carbon dioxide, the gas mixture is passed to a pressure saving adsorption system used to produce an impure ammonia synthesis gas mixture of hydrogen and nitrogen, with excess nitrogen being separated and removed therefrom with the impurities discharged from the system at high operating pressures, the purge gas effluent from the pressure swing adsorption system can be passed to an expansion turbine for desirable power energy. The ammonia synthesis gas, which can be passed to a methanator for final purification, is thus produced without the need for employing an air separation plant or a nitrogen plant.

REFERENCES:
patent: 4296085 (1981-10-01), Banquy
patent: 4337170 (1982-06-01), Fuderer
patent: 4375363 (1983-03-01), Fuderer
patent: 4414191 (1983-11-01), Fuderer
Stewart et al., "Pressure Swing Adsorption," Chemical Engineering Progress, vol. 65, No. 9, Sep. 1969.

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