大庆5000方/天含氮氧煤层气液化装置，采用混合冷剂液化与低温精馏工艺，将富含氮气、氧气的煤层气中氮气与氧气进行分离，生产合格的LNG产品。

Daqing 5000 square meters/day nitrogen-oxygenated coal-bed methane liquefaction plant adopts mixed coolant liquefaction and low temperature rectification process to separate nitrogen and oxygen from coal-bed methane rich in nitrogen and oxygen, and produce qualified LNG products.