Desulfurization process utilizing an oxidizing agent, carbonyl compound, and hydroxide
AssigneeDS2 Tech, Inc.
InventorsJames K. Jeanblanc, William E. Wismann
Life of this patent
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Abstract
Sulfur-containing carbonaceous materials are desulfurized by reaction with a mixture of an oxidizing agent and a carbonyl compound under alkaline conditions at a temperature ranging from ambient temperature to about 250.degree. F. and a pressure of about 1 atmosphere to 2 atmospheres. The products of the reaction are a desulfurized carbonaceous material in which the sulfur content is less than about 1%, and gaseous sulfur compounds. The carbonyl compound can be recovered and reused.
Claims31
A process for desulfurizing sulfur-containing carbonaceous materials which comprises reacting a sulfur-containing carbonaceous material wherein sulfur is present in the form of sulfur-containing organic compounds with a mixture of an oxidizing agent, a carbonyl compound, and a hydroxide to produce a desulfurized carbonaceous product in which the sulfur content is less that about 1% by weight.
A process for desulfurizing a carbonaceous material which comprises:
- reacting a sulfur-containing carbonaceous material with a mixture of an oxidizing agent, a carbonyl compound, and a hydroxide at a temperature in the range of ambient temperature to about 250.degree. F. and a pressure of about 1 atmosphere to 2 atmospheres;
- and
- producing a desulfurized carbonaceous product in which the sulfur content is less than about 1% by weight.
A continuous process for desulfurizing a carbonaceous material which comprises:
- introducing a sulfur-containing carbonaceous material, an oxidizing agent, a carbonyl compound, and a base into a reaction zone maintained at a temperature of about 200.degree. F. to 250.degree. F. and a pressure of about 1 atmosphere to 2 atmospheres;
- reacting said sulfur-containing carbonaceous material with said oxidizing agent, said carbonyl compound, and said base in said reaction zone to produce a desulfurized carbonaceous product, in which the sulfur content is less than about 1% by weight, and a mixture of gaseous sulfur compounds comprising hydrogen sulfide and salts;
- recovering said desulfurized carbonaceous product and said hydrogen sulfide;
- and
- recycling said carbonyl compound.
Dependencies are inferred from the claim text.