Chart Industries unit issued patent for liquefaction technology
Chart Energy & Chemicals, Inc., a Chart Industries Company, announced that the United States Patent and Trademark Office has awarded the company a patent for its IPSMR cryogenic liquefaction process technology. Initially intended for use in the making of liquefied natural gas, IPSMR technology, uses a mixture of light hydrocarbons and nitrogen to provide refrigeration. Process optimization is achieved through an improved refrigeration cycle using Chart's proprietary brazed aluminum heat exchangers. The IPSMR process allows clients to achieve maximum operating efficiency, economy and performance by 6-10% over other industry recognized single mixed refrigerant processes. Chart is also actively developing IPSMR to improve the efficiency of other liquefaction processes, such as ethane, ethylene and energy storage projects. In addition to the United States, IPSMR process technology has been patented in other major countries, including China and Japan, and it is patent pending in many others.