ALEXANDRIA, Va., July 15 -- United States Patent no. 12,662,379, issued on June 23, was assigned to The University of Western Australia (Crawley, Australia).
"Process and apparatus to recover helium" was invented by Eric Freemantle May (Crawley, Australia), Roman Weh (Crawley, Australia) and Gongkui Xiao (Crawley, Australia).
According to the abstract* released by the U.S. Patent & Trademark Office: "An apparatus and a process to recover high purity helium from a low helium content feed stream are disclosed. The apparatus includes a first dual reflux pressure swing adsorption (DRPSA) unit and a second DRPSA unit, each unit comprising a high pressure adsorption column and a low pressure adsorption column configured in fluid communication w...