| 制氨厂尾气中CO的变压吸附提纯 |
| 摘要点击 2095 全文点击 1953 投稿时间：2003-10-28 修订日期：2004-01-15 |
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| 中文关键词 制氨厂尾气 一氧化碳 提纯 变压吸附 |
| 英文关键词 ammonia plant tail gas carbon monoxide purification pressure swing adsorption |
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| 中文摘要 |
| 制氨厂尾气含有大量CO,若采用有效的分离、纯化工艺,可获得碳一化工(C1)所需的高纯度CO.本文研究了用PU1型吸附剂变压吸附提纯制氨厂尾气,同时比较了PU1型吸附剂和ZMS-5A型沸石的性能.试验采用一段法变压吸附工艺研究了不同操作条件下CO的纯化和回收,气体流速为0.2～0.8 m3/h,并对工艺条件进行了优化.结果表明PU1吸附性能较好,在吸附压力0.3 MPa、原料气CO浓度30%时,CO回收率为75%,CO产品气的纯度可大于98%. |
| 英文摘要 |
| Ammonia plant tail gas is an important CO source for C1 chemistry if an efficient separation/purification technology is available. Presented is pressure swing adsorption using a home made catalyst PU1 for recovery of CO from ammonia plant tail gas. A performance comparison of PU1 with a commercial zeolite was also presented. The pilot plant experiments were carried out in an intermission one bed PSA unit with ammonia plant tail gas and a feed flow rate of 0.2～0.8 m3/h. The purity and recovery of CO was studied under various operating conditions. The operating conditions for the process were optimized and an optimum cyclic sequence of operation steps was proposed. A good performance of PU1 in the process was experimentally demonstrated. Product gas with a CO purity over 98% could be produced at a CO recovery of 75% for a feed gas CO concentration of 30% and gas pressure of 0.3 MPa. |
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