| 变压吸附脱除乙烯中的CO_2和O_2 |
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| 引用本文： | 李德伏,王金渠,鲍钟英. 变压吸附脱除乙烯中的CO_2和O_2[J]. 石油化工, 2000, 29(8) |
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| 作者姓名： | 李德伏 王金渠 鲍钟英 |
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| 作者单位： | 大连理工大学,化工学院,辽宁,大连,116012 |
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| 摘 要： | 在常温、0～ 80kPa下 ,测定了C2 H4、CO2 和O2 气体在两种吸附剂上的吸附等温线和吸附速率曲线。结果表明 ,无论采用何种吸附剂 ,利用吸附平衡性质难以吸附脱除C2 H4中的CO2 和O2 ;但在炭分子筛吸附剂上 ,在吸附的最初阶段 ( 0～ 2min内 ) ,CO2 和O2 的吸附量均大于C2 H4的吸附量 ,可利用CO2 和O2 与C2 H4气体之间吸附速率的差异 ,控制较短的吸附时间 ,吸附脱除C2 H4中的CO2 和O2 ,回收C2 H4。在双塔变压吸附分离装置上 ,考察了变压吸附条件对吸附分离效果的影响。
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| 关 键 词： | 变压吸附 乙烯回收 分离 |
Adsorption and Separation of C2H4,CO2 Gases on Molecular Sieves |
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| LI De-fu,WANG Jin-qu,BAO Zhong-ying. Adsorption and Separation of C2H4,CO2 Gases on Molecular Sieves[J]. Petrochemical Technology, 2000, 29(8) |
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| Authors: | LI De-fu WANG Jin-qu BAO Zhong-ying |
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| Abstract: | The adsorption and diffusion properties of C 2H 4,CO 2,O 2 gases on 5A zeolite and carbon molecular sieve were measured with a Cahn 2000 electric balance,it is shown that C 2H 4,CO 2,O 2 gases can be separated with carbon molecular sieves by taking advantage of the difference in the adsorption rates at the early stage of adsorption. The separation of gas mixtures was conducted with pressure swing adsorption equipment,the effect of experimental conditions on separation was investigated.CO 2 and O 2 gases can be adsorbed and removed from gas mixtures,while the output gases are rich in C 2H 4. [ |
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| Keywords: | pressure swing adsorption ethylene recovery separation |
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