Process for removing residual mercury from treated natural gas

Details Process for removing residual mercury from treated natural gas Process for removing residual mercury from treated natural gas

1987-09-30

1989-05-30

Doll, John

Chemistry of inorganic compounds

Modifying or removing component of normally gaseous mixture

423230, 423563, B01D 5302, C01B 1716

Patent

active

048349534

ABSTRACT:
Gases such as nitrogen and natural gas are depleted of contaminating mercury by contacting the gas first with an aqueous solution of sodium polysulfide and subsequently contacting the effluent gas with a cobalt salt, for example, cobalt chloride. The effluent gas subsequently treated as desired to remove moisture and any other contaminants present.

REFERENCES:
patent: 3331657 (1967-07-01), Peter et al.
patent: 4500327 (1986-02-01), Nishino et al.
patent: 4556547 (1985-12-01), Nishino et al.
patent: 4591490 (1986-05-01), Horton

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