PetroChinas Ansai LNG project in Shaanxi Province has
produced qualified LNG in one liquefaction trial, parent
company China National Petroleum Corp. (CNPC) said in a Tuesday
The successful trial marks the industrial application
of the double mixed refrigerant (DMR) process, independently
developed by CNPC's China Huanqiu Contracting & Engineering
The process is the first of its kind regarding large-scale
gas liquefaction in China, the company said.
Shaanxi has been a hotbed for natural gas activity in recent
years, particularly with shale and coal-bed methane.
CNPC said the successful debut of the Ansai LNG project indicates a major step
forward in relevant proprietary technology development and will also
facilitate economic development in the local area.
Late in 2009, HQCEC won the engineering and construction contract on the Ansai
LNG project from CNPC-affiliated Kunlun Energy.
During project implementation, HQCEC
formulated large and medium-sized gas liquefaction technical
packages, realized localization of primary materials, part of
the equipment and the control system, and developed the DMR
process with proprietary intellectual property rights.