Apparatus and method for generation of control signal for Claus

Details Apparatus and method for generation of control signal for Claus Apparatus and method for generation of control signal for Claus

1988-06-23

1993-01-05

Russel, Jeffrey E.

Chemistry of inorganic compounds

Sulfur or compound thereof

Elemental sulfur

436120, 436121, C01B 1704, G01N 3110

Patent

active

051768968

ABSTRACT:
An apparatus and method for the generation of a control signal for the optimization of sulfur removal in a Claus process unit comprises oxidizing a portion of the tail gas stream exiting the Claus unit by contacting a portion of the tail gas with an oxygen-containing gas in the presence of a catalyst which oxidizes H.sub.2 S to SO.sub.2, measuring the temperature rise associated with the oxidation reaction, converting the measurement to an appropriate control signal, and using the signal to control the rate of air flow into the Claus unit.

REFERENCES:
patent: Re28864 (1976-06-01), Andral et al.
patent: 3854876 (1974-12-01), Rankine et al.
patent: 4100266 (1978-07-01), Smith
patent: 4171347 (1979-10-01), Hass
patent: 4279882 (1981-07-01), Beavon
patent: 4509327 (1985-04-01), Enga
patent: 4543245 (1985-09-01), Peterman et al.
patent: 4617794 (1986-10-01), Fujitani et al.

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