Process for automated regulation of sulfur production units

Details Process for automated regulation of sulfur production units Process for automated regulation of sulfur production units

1974-04-08

1976-01-20

Satterfield, Walter R.

Chemistry of inorganic compounds

Sulfur or compound thereof

Elemental sulfur

23255R, C01B 1702

Patent

active

039339920

ABSTRACT:
A process for automated regulation of a unit producing sulphur by oxidation of hydrogen sulphide, in which the flow of gas carrying oxygen into the unit is regulated so as to keep an operating parameter, based on measurement of the sulphurous compound of the residual gases, level with a reference value.
It is characterized by the fact that the control signal, used to regulate the flow of gas containing oxygen at the unit inlet, is a combination of a signal based on measurements taken at the inlet, and representing the theoretical flow of this gas needed to keep the operating parameter at its reference level and another signal representing the correction needed in this flow to adjust the instantaneous value of the parameter to the reference level.
This process allow better control of the sulphur unit, with increased efficiency and reduced atmospheric pollution.

REFERENCES:
patent: 3026184 (1962-03-01), Karaser
patent: 3219415 (1965-11-01), Hensley
patent: 3312529 (1967-04-01), Evand
patent: 3424560 (1969-01-01), Carmassi et al.
patent: 3871831 (1975-03-01), Andral et al.
Opekar, P. et al.; How A Computer Can Optimize Sulfur-Plant Design Operations; in Oil & Gas Journ., May 1966, pp. 86-89.

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