Helium is a scarce strategic resource, with China's helium resource potential primarily derived from key areas such as pipeline gas, coalbed methane, and boil-off gas (BOG) from LNG liquefaction.
The technical route and process package proposed by Anhui Zhongke Wenergy Technology Co., Ltd., which includes two-stage membrane separation technology + cascade dehydrogenation technology + pressure swing adsorption (PSA) technology + temperature swing adsorption (TSA) refining technology, has been successively validated in projects such as helium extraction from coalbed methane at Yaojie Coal and Electricity, and BOG helium extraction at Ningqiang Xuri Energy. These validations confirm the multiple advantages of this process route, including its advancement, efficiency, economy, and rationality.
This process package utilizes key technologies independently developed by Anhui Zhongke Wenergy Technology Co., Ltd., such as two-stage membrane separation technology, highly efficient deep cascade dehydrogenation technology, high-throughput pressure swing adsorption (PSA) technology, and deep cryogenic and general-purpose temperature swing adsorption (TSA) purification and refining. By effectively coupling various technologies and combining different advantages, it processes feed gas with low helium concentrations (300 ppm) from natural gas liquefaction flash gas (BOG), coalbed methane, or pipeline gas to recover and purify helium, producing qualified 99.999% high-purity helium products.
This process route, compared to the traditional cryogenic method, offers broader and more cost-effective raw material sources with superior technical and economic feasibility. It can utilize widely distributed natural gas pipeline gas and coalbed methane in China as foundational raw materials, not limited to the existing LNG liquefaction BOG gas. Through our company's latest developed process technology, it efficiently and precisely separates and deeply purifies trace helium gas accompanying natural gas.
Through the empowerment of our company's natural gas helium extraction technology, we will establish the process and market channels for recovering and purifying helium from low-helium-content sources such as pipeline natural gas and coalbed methane. This not only extends the natural gas industry chain but also enhances energy utilization efficiency, creating broader development prospects. To win the battle for helium self-sufficiency, ensure supply-side security, and resolve the bottleneck issue of helium resources, our company will continue to contribute.
Anhui Zhongke Wanneng Technology Co., Ltd. will continue to provide superior skid-mounted designs, process packages, and modular design solutions in fields such as BOG helium extraction and pipeline gas/coalbed methane helium extraction, offering better solutions for all users and partners.