Recovery of elemental sulfur from sour gas

Chemistry of inorganic compounds – Sulfur or compound thereof – Elemental sulfur

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422171, 422172, 422173, 422190, C01B 1704, B01J 804

Patent

active

044629770

ABSTRACT:
Excess heat generated in a thermal reaction zone of a Claus sulfur recovery plant is used, by means of a high boiling point heat transfer medium, to reheat the Claus plant process stream prior to high temperature Claus catalytic conversion, and/or to regenerate Claus catalyst on which sulfur is deposited, or for other functions. In another aspect, low temperature Claus catalytic converters are operated at equivalent pressures during a cycle comprising an adsorption phase, a regeneration phase, and a cooling phase.

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