Back to results
US 7,718,151 B1Granted
Methods and systems for deacidizing gaseous mixtures
OwnerLiang Huinventor
Life of this patent
Estimating the term…
Abstract
An improved process for deacidizing a gaseous mixture using phase enhanced gas-liquid absorption is described. The process utilizes a multiphasic absorbent that absorbs an acid gas at increased rate and leads to reduced overall energy costs for the deacidizing operation.
Claims21
A method for deacidizing a gaseous mixture comprising an acid gas, the process comprising:
- contacting the gaseous mixture with an absorbent in an absorption unit, wherein the absorbent comprises a carrier phase and an organic phase that is immiscible with the carrier phase;
- allowing the organic phase to absorb the acid gas and convert the acid gas into an absorbed acid gas, so as to convert the absorbent into a gas-rich absorbent and to convert the gaseous mixture into a purified gaseous mixture;
- allowing the absorbed acid gas to be transferred into the carrier phase, so as to form a first gas-lean phase and a gas-rich phase in the gas-rich absorbent;
- providing the gas-rich absorbent to a separation unit, so as to separate the first gas-lean phase from the gas-rich phase;
- cycling the separated first gas-lean phase back into the absorption unit;
- providing the separated gas-rich phase to a regeneration unit, so as to obtain the acid gas and a second gas-lean phase;
- and
- cycling the second gas-lean phase back into the absorption unit.
5 more elements
Dependencies are inferred from the claim text.