Method for optimizing the temperature of a Claus unit
AssigneesL'Air Liquide, Air Liquide America Corporation
InventorsDenis Cieutat, Emmanuel Schmidt
Life of this patent
Estimating the term…
Abstract
A method is disclosed for treating sulfur containing waste streams, comprising: a) injecting said sulfur containing waste streams into a sulfuric acid regeneration unit so as to produce a sulfur dioxide containing effluent; b) passing a portion of said sulfur dioxide containing effluent to a Claus thermal reactor, and c) diverting a portion of said portion of said sulfur dioxide containing effluent of step b to a Claus catalytic reactor that is downstream from said Claus thermal reactor in an amount sufficient to maintain the average temperature in the Claus thermal reactor to be less than 3,250.degree. F.
Claims24
A process for the recovery of sulfur from sulfur-containing fluid mixtures, comprising the steps of:
- a) recovering a sulfur-dioxide-containing gas from a sulfuric acid treatment unit;
- b) feeding a H.sub.2 S-containing gas to a thermal reactor of a Claus unit;
- c) reacting at least a portion of said SO.sub.2 -containing gas in said Claus unit thermal reactor;
- d) controlling the temperature in the Claus unit thermal reactor by diverting a portion of said portion in step C of the SO.sub.2 -containing gas to a downstream catalytic Claus convertor without reacting the diverted SO.sub.2 in the Claus thermal reactor, in an amount effective to maintain the average temperature in the Claus thermal reactor at less than 3250.degree. F.;
- and
- e) recovering a sulfur product from said Claus unit.
A process for the recovery of sulfur from sulfur-containing fluid mixtures, comprising the steps of:
- a) recovering a sulfur-dioxide-containing gas from a sulfuric acid treatment unit;
- b) feeding a H.sub.2 S-containing gas to a Claus thermal reactor;
- c) reacting at least a portion of said sulfur-dioxide-containing gas in said Claus thermal reactor;
- and
- d) controlling the temperature in the Claus unit thermal reactor by diverting a portion of said portion in step C of the SO.sub.2 -containing gas to a downstream catalytic Claus convertor without reacting the diverted SO.sub.2 in the Claus thermal reactor, in an amount effective to maintain the average temperature in the Claus thermal reactor at less than 3250.degree. F.
A process for treating sulfur-containing waste streams comprising the steps of:
- a) recovering a quantity of sulfur-dioxide-containing gas from a sulfuric acid regeneration unit comprising a SAR regeneration furnace;
- b) feeding a first portion of said sulfuric-dioxide-containing gas to a Claus thermal reactor;
- c) diverting a portion of said first portion of said sulfuric-dioxide-containing gas to a downstream catalytic Claus converter without reacting diverted SO.sub.2 in said thermal reactor, in an amount effective to maintain the average temperature in the Claus thermal reactor between about 1650.degree. F. and about 3200.degree. F.
Dependencies are inferred from the claim text.