| 摘要 |
Invention relates to a method for the reduction of sulfur dioxide with a reducing gas to elemental sulfur and/or other gaseous sulfur compounds in the presence of a catalyst and at a temperature within the range from 1,000 DEG to 2,400 DEG F., by passing a gaseous reaction mixture of a sulfur-dioxide containing gas with a reducing gas first through a contact chamber maintained at a temperature sufficient to raise the temperature of the mixture to 1,000 DEG to 2,400 DEG F., passing said heated gaseous reaction mixture through a reaction chamber containing a catalyst to produce a mixture comprising hydrogen sulfide, sulfur dioxide and sulfur, passing said product through a contact chamber containing contact means sufficient to absorb heat from said product stream to reduce the temperature of the product stream to about 700 DEG to 800 DEG F. and recovering the cooled product stream; said contact chambers being subjected to continuous alternating heat absorbing cycles while maintaining during the alternating cycles of the contact chambers the passage of the gaseous reaction mixture through the reaction chamber in the same direction through the catalyst bed.
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