Control system for a sulfur process

Details Control system for a sulfur process Control system for a sulfur process

C - Chemistry, Metallurgy

01

B

23/332, 23/385,

C01B 17/04 (2006.01) G01N 7/00 (2006.01)

Patent

CA 1097890

Abstract of the Disclosure Control of a process for producing free sulfur from hydrogen sulfide is accomplished by manipulating the flow rate of a stream contianing oxygen to a furnace in such a manner that a desired proportion of the hydrogen sulfide fed to the furnace is converted to sulfur dioxide, The flow rate of a feed stream containing hydrogen sulfide to a tail gas cleanup process is also manipulated utilizing feedfoward and feedback control to maintain the hydrogen sulfide and sulfur dioxide concentrations in the gas stream from the tail gas cleanup process at acceptable levels to avoid environmental polution. ********************************************************

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