Process and apparatus for treating a sour synthesis gas
OwnerJan De Ren, Bart J. T. Beuckels +1inventors
InventorsJan De Ren, Bart J. T. Beuckels, William J. Whyman
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Abstract
Processes and apparatuses for treating a sour synthesis gas are provided. The process comprises passing the sour synthesis gas stream to an acid gas removal unit to provide a treated synthesis gas stream and a CO2 rich stream. At least a portion of the CO2 rich stream is passed to a thermal oxidizer unit to provide a treated CO2 gas stream. At least a portion of the treated synthesis gas stream is passed to a pressure swing adsorption unit to obtain a purified hydrogen stream and a tail gas stream. At least a portion of the tail gas stream is passed to the thermal oxidizer unit.
Claims18
An integrated process for treating a sour synthesis gas and recovering one or more acidic gases comprising CO2 present in the sour synthesis gas, the process comprising:
- (a) passing a sour synthesis gas stream to an acid gas removal unit to provide a treated synthesis gas stream and a CO2 rich stream;
- (b) passing at least a portion of the CO2 rich stream to a thermal oxidizer unit to provide a treated CO2 gas stream;
- (c) passing at least a portion of the treated synthesis gas stream to a pressure swing adsorption unit to obtain a purified hydrogen stream and a tail gas stream;
- and
- (d) passing at least a portion of the tail gas stream obtained from the pressure swing adsorption unit to the thermal oxidizer unit, further comprising passing a flue gas produced in the thermal oxidizer unit to a waste heat recovery unit, and further comprising passing at least a portion of steam recovered from the waste heat recovery unit to the acid gas removal unit.
An integrated process for treating a sour synthesis gas and recovering one or more gases comprising CO2 present in the sour synthesis gas, the process comprising:
- (a) passing a sour synthesis gas stream to an acid gas removal unit to provide a treated synthesis gas stream and a CO2 rich stream;
- (b) passing at least a portion of the CO2 rich stream to a thermal oxidizer unit to provide a treated CO2 gas stream;
- (c) passing a flue gas produced in the thermal oxidizer unit to a waste heat recovery unit;
- (d) passing at least a portion of steam recovered from the waste heat recovery unit to the acid gas removal unit;
- and
- (e) passing at least a portion of the treated synthesis gas stream to a pressure swing adsorption unit to obtain a purified hydrogen stream and a tail gas stream.
An integrated process for treating a sour synthesis gas and recovering one or more gases comprising CO2 present in the sour synthesis gas, the process comprising:
- (a) passing a sour synthesis gas stream to an acid gas removal unit to provide a treated synthesis gas stream and a CO2 rich stream;
- (b) passing at least a portion of the CO2 rich stream to a thermal oxidizer unit to provide a treated CO2 gas stream;
- (c) passing a flue gas produced in the thermal oxidizer unit to a waste heat recovery unit;
- (d) passing at least a portion of steam recovered from the waste heat recovery unit to the acid gas removal unit;
- (e) passing at least a portion of the treated synthesis gas stream to a pressure swing adsorption unit to obtain a purified hydrogen stream and a tail gas stream;
- and
- (f) passing at least a portion of the tail gas stream to the thermal oxidizer unit.
Dependencies are inferred from the claim text.