To reduce the impurities and prolong the catalyst life, it is necessary to pay attention to the R ratio (H2-CO2/CO+CO2), CO/CO2 ratio and CO2 content.

• 要减少杂质含量和延长催化剂使用寿命，除需要充分注意原料气中R值之外，还需注意CO/CO2之比值和CO2的含量。