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Desulfurization and low temperature regeneration of carbonaceous adsorbent

Patent ·
OSTI ID:7011071
A gas desulfurization process is disclosed wherein a particulate , partially oxidized coal is used as an adsorbent for gaseous sulfur oxides and is regenerated by contact with a low temperature recycled stream of its own desorbed off-gas containing at least 40% steam and 15% SO/sub 2/. A bleed stream of the desorbed off-gas may be reacted with coal at 1150/sup 0/F to 1550/sup 0/F to partially oxidize the coal and transform it into an adsorbent suitable for use in the adsorber.
Assignee:
Foster Wheeler Energy Corp
Patent Number(s):
US 4219537
OSTI ID:
7011071
Country of Publication:
United States
Language:
English