US Patent Issued to Southwest Research Institute on March 25 for "Charge, storage, and discharge energy system using liquid air and sCO2" (Texas Inventors)

ALEXANDRIA, Va., March 26 -- United States Patent no. 12,258,883, issued on March 25, was assigned to Southwest Research Institute (San Antonio).

"Charge, storage, and discharge energy system using liquid air and sCO2" was invented by Owen M Pryor (San Antonio) and Aaron M Rimpel (Helotes, Texas).

According to the abstract* released by the U.S. Patent & Trademark Office: "A system for using excess energy of a power generation system and an sCO2 (supercritical carbon dioxide) stream to store and generate power. An air separation unit uses the excess energy to cool and liquify ambient air into liquid nitrogen (L-N2) and liquid oxygen (L-O2). The L-O2 and L-N2 are stored until energy is desired. An L-O2 energy discharge path has an oxygen he...