变压吸附净化合成氨原料气中CO的研究

采用载铜吸附剂进行了变压吸附净化合成氨原料气中CO的工业侧线实验。在部分产品气体作为再生气和抽真空再生2种条件下，考察了合成氨原料气中CO的净化过程的稳定性。试验结果表明，载铜吸附剂用于净化合成氨原料气中CO，可使产品中的CO的浓度小于1mg/m∧3。从技术经济角度出发，分析了变压吸附净化过程应用于合成氨工业的可行性。变压吸附净化合成氨原料气中CO能量消耗仅为铜洗法的20%左右，经济效益显著，具有广阔的应用前景。

Study of Removal of CO from Ammonia Feed Gas by Pressure Swing Adsorption

An experiment is carried out in an industrial side line on the removal of CO from the ammonia feed gas by pressure swing adsorption with copper-bearing adsorbent. Under two process conditions, viz., a part of the product gas used as the regenerating gas and regeneration with vacuum-pumping, the stability of the purification process by removal of CO from the ammonia feed gas is examined. The experimental results show that the use of the copper-bearing adsorbent for the removal of CO from the ammonia feed gas can decrease the CO concentration in the product to less than 1 mg/m3. The feasibility of the use of the PSA purification process in the ammonia industry is analyzed from the techno-economic viewpoint. The energy consumption of the process is only about 20% of that of the cuprammonia wash process, with remarkable economic benefit, manifesting a wide prospect for its use.