Hao Cheng

Head of Liquid Technology Institute

CNOOC Gas & Power Group Co., Ltd.

Cheng Hao, Senior Engineer, Director of the Institute of Liquefaction Technology at Research and Development Center, CNOOC Gas & Power Group. He has long been engaged in technological research and development in areas such as natural gas liquefaction, FLNG, bunkering, and helium liquefaction. He has spearheaded over 40 scientific research projects for CNOOC, contributed to the EPC engineering of 8 LNG receiving terminals, published 15 academic papers, filed 26 patents, and received 12 scientific and technological progress awards.  He has also been honored with titles such as "Outstanding Young Science and Technology Worker of CNOOC" and "Outstanding Employee of CNOOC Gas & Power Group."

Participates in

TECHNICAL PROGRAMME | Energy Infrastructure

Navigating the Future: Innovations & Market Dynamics in LNG, FLNG, & CNG
Forum 07 | Digital Poster Plaza 2
27
April
15:30 17:30
UTC+3
This paper focuses on the efficient and comprehensive development of associated helium resources in natural gas. An integrated experimental device for combined helium gas and liquid production was developed, and its performance was tested. The helium extraction system employs cryogenic purification and high-efficiency deneonization technology, achieving a product helium purity of 99.999%. The helium liquefaction system innovatively adopts a two-stage turbine expansion refrigeration cycle combining full dynamic and dynamic-static pressure processes. The measured isentropic efficiency of the turbine reached 65%, and the system’s coefficient of performance (COP) was no less than 0.002. Test results demonstrate that the unit operates stably and meets all design specifications, enabling continuous co-production of high-purity liquid helium from raw feed gas. This provides an effective engineering solution for technological advancement and high-value utilization of helium resources in the natural gas helium extraction industry.
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