For CMM containing methane above 45%, the cryogenic distillation plant may concentrate methane to 95%~99% with methane recovery of 95%~99%.

• 对于含甲烷45%25以上的煤层气，可将甲烷浓度提高到95%25~99%25，低温装置的甲烷回收率可达95%25~99%25。