CBA for Claus tail gas cleanup. [Cold Bed Adsorption]
Patent
·
OSTI ID:7219364
An improved method is given for further removal of sulfur from the tail gas of a conventional Claus plant by the use of a Cold Bed Adsorption process. It involves the specific improvement of maintaining at all times the lead Claus reactor of a series of such reactors at sufficiently high temperatures to promote hydrolysis of COS and CS/sub 2/ and then utilizing part or all of the hot effluent gases of this lead reactor to regenerate the sulfur-fouled Cold Bed Adsorption catalyst by passing the hot stream through the fouled reactor, removing the deposited sulfur and then returning the stream to the Claus plant at a point essentially immediately downstream from where it was originally withdrawn. Such a method is useful in maintaining ultra-high sulfur conversion levels on a commercial scale. 17 claims, 5 figures.
- Assignee:
- Standard Oil Co. (Indiana)
- Patent Number(s):
- US 4035474
- OSTI ID:
- 7219364
- Country of Publication:
- United States
- Language:
- English
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