US Patent Issued to Dalian Jiachun Gas Purification Technology Development on June 16 for "Method and device for washing and purification with low-temperature methanol" (Chinese Inventors)

ALEXANDRIA, Va., June 16 -- United States Patent no. 12,655,022, issued on June 16, was assigned to Dalian Jiachun Gas Purification Technology Development Co. Ltd (Dalian, China).

"Method and device for washing and purification with low-temperature methanol" was invented by Shuwei Zhang (Dalian, China) and Fengbao Guan (Dalian, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method for washing and purification with a low-temperature methanol at least includes the following steps: condensing a raw shift gas and conducting a gas-liquid separation to obtain CO2-containing liquid and a separated raw material gas; and vaporizing the CO2-containing liquid and reducing a pressure by an expansion to obtain a ...