Two processes, copper washing refining process and high-pressure methanol methanation process in Hebei Jinwantai raw gas refining process were compared. It is pointed out that material consumption in the copper washing  refining process has the disadvantages of high material consumption, energy consumption of copper pump and liquid copper regeneration  and copper washing environmental pollution, high-pressure methanol methanation process operation has the advantges of saving materials and energy consumption, reducing cost, high synthetic ammonia feedstock gas refining effect, stabled system and no environmental pollution etc.. Compared to the copper washing refining process the high-pressure methanol methanation process showes the obvious advantages in economy, environmental protection etc..