| 变压吸附法回收环氧乙烷生产排放气中的乙烯 |
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| 引用本文： | 刘晓勤,戴岳,姚虎卿.变压吸附法回收环氧乙烷生产排放气中的乙烯[J].化学工程,2006,34(2):67-70. |
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| 作者姓名： | 刘晓勤 戴岳 姚虎卿 |
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| 作者单位： | 南京工业大学,化学化工学院,江苏,南京,210009;南京工业大学,化学化工学院,江苏,南京,210009;南京工业大学,化学化工学院,江苏,南京,210009 |
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| 基金项目： | 国家自然科学基金资助项目(20276029) |
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| 摘 要： | 针对环氧乙烷生产装置中含乙烯尾气排放造成乙烯资源浪费的问题,提出采用变压吸附回收尾气中乙烯的方法。实验中测定了排放气中各种气体组分在普通活性炭和自制载铜吸附剂(NJ)上的吸附平衡;分别考察了气体组分C2H6、CO2、Ar、CH4、O2对NJ变压吸附混合气中乙烯的影响。实验中还测定了NJ用于工厂实际排放气体中变压吸附乙烯的性能,并初步考察了解吸性能。实验结果表明,除氧气有一定影响外,NJ吸附剂具有稳定的变压吸附特性,能达到环氧乙烷排放气中乙烯回收要求,具有广泛的工业应用前景。
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| 关 键 词： | 吸附剂 变压吸附 环氧乙烷 乙烯 |
| 文章编号： | 1005-9954（2006）02-0067-04 |
Recovering ethylene from off-gas of ethylene oxide plant by pressure swing adsorption |
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| LIU Xiao-qin,DAI Yue,YAO Hu-qing.Recovering ethylene from off-gas of ethylene oxide plant by pressure swing adsorption[J].Chemical Engineering,2006,34(2):67-70. |
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| Authors: | LIU Xiao-qin DAI Yue YAO Hu-qing |
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| Affiliation: | College of Chemistry and Chemical Engineering, Nanjing University of Technology, Nanjing 210009, Jiangsu Province, China |
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| Abstract: | In order to recover ethylene from off-gas of the ethylene oxide plant efficiently,a method of pressure swing adsorption(PSA) was used.Adsorption equilibria of ethylene,ethane and other relevant gases on the activated carbon and the adsorbent(NJ) proposed which was loaded with cuprous cation were studied,respectively.The PAS performances of C_2H_4 and C_2H_6 mixture and the off-gas from the ethylene oxide plant as well as the effects of O_2,CH_4 and CO_2 on the C_2H_4 adsorption were investigated.Experimental results show that the adsorbent NJ has a high adsorption selectivity of C_2H_4,and has much higher capacity of C_2H_4 than that of C_2H_6.The proposed adsorbent NJ also shows very stable characteristics for PSA performance. |
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| Keywords: | adsorbent pressure swing adsorption ethylene oxide ethylene |
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