Desulfurization and low temperature regeneration of carbonaceous

Details Desulfurization and low temperature regeneration of carbonaceous Desulfurization and low temperature regeneration of carbonaceous

1978-10-31

1980-08-26

Vertiz, O. R.

Chemistry of inorganic compounds

Sulfur or compound thereof

Elemental sulfur

423244, 252411S, C01B 1702, C01B 1700, B01J 800

Patent

active

042195373

ABSTRACT:
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.degree. F. to 1550.degree. F. to partially oxidize the coal and transform it into an adsorbent suitable for use in the adsorber.

REFERENCES:
patent: 1832217 (1931-11-01), Joseph
patent: 2933454 (1960-04-01), Repik
patent: 3396509 (1968-08-01), Tamura et al.
patent: 3544263 (1970-12-01), Ninomiya et al.
patent: 3667910 (1972-06-01), Equchi
patent: 3917799 (1975-11-01), Torrence

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