Process for the selective removal of inorganic and/or organic su

Details Process for the selective removal of inorganic and/or organic su Process for the selective removal of inorganic and/or organic su

1993-03-01

1995-05-09

Straub, Gary P.

Gas separation: processes

Liquid contacting

Inorganic gas, liquid particle, or solid particle sorbed

423210, 423220, 423226, 4232421, 4232426, 4232452, C01B 1700

Patent

active

054136270

ABSTRACT:
For the selective removal of sulfur from gases, a physical scrubbing agent is used, comprising a heterocycle having five or more ring atoms, which contains two heteroatoms, one of which is nitrogen and the other of which is oxygen or nitrogen; and the heteroatoms in the rings of even member number of atoms occupy; one of the positions from 1,2 to 1,n/2 and, in the rings of uneven member number of atoms occupy one of the positions from 1,2 up to 1, (n-1)/2. Further, the nitrogen heteroatom(s) present in the ring is/are either double bonded or single bonded but, if single bonded, the nitrogen is organo-substituted.

REFERENCES:
patent: 4094957 (1978-06-01), Sartori et al.
patent: 4217238 (1980-08-01), Sartori et al.
patent: 4624838 (1986-11-01), Pan et al.
patent: 5098681 (1992-03-01), Christiansen et al.

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