Recovering ethylene from off-gas of ethylene oxide plant by pressure swing adsorption

Xiao Qin Liu; Yue Dai; Hu Qing Yao

Recovering ethylene from off-gas of ethylene oxide plant by pressure swing adsorption

Xiao Qin Liu, Yue Dai, Hu Qing Yao

College of Chemical Engineering

Nanjing Tech University

Research output: Contribution to journal › Article › peer-review

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 C₂H₄ and C₂H₆ mixture and the off-gas from the ethylene oxide plant as well as the effects of O₂, CH₄ and CO₂ on the C₂H₄ adsorption were investigated. Experimental results show that the adsorbent NJ has a high adsorption selectivity of C₂H₄, and has much higher capacity of C₂H₄ than that of C₂H₆. The proposed adsorbent NJ also shows very stable characteristics for PSA performance.

Original language	English
Pages (from-to)	67-70
Number of pages	4
Journal	Huaxue Gongcheng/Chemical Engineering (China)
Volume	34
Issue number	2
State	Published - Feb 2006

Keywords

Adsorbent
Ethylene
Ethylene oxide
Pressure swing adsorption

Cite this

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title = "Recovering ethylene from off-gas of ethylene oxide plant by pressure swing adsorption",

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 C2H4 and C2H6 mixture and the off-gas from the ethylene oxide plant as well as the effects of O2, CH4 and CO2 on the C2H4 adsorption were investigated. Experimental results show that the adsorbent NJ has a high adsorption selectivity of C2H4, and has much higher capacity of C2H4 than that of C2H6. The proposed adsorbent NJ also shows very stable characteristics for PSA performance.",

keywords = "Adsorbent, Ethylene, Ethylene oxide, Pressure swing adsorption",

author = "Liu, {Xiao Qin} and Yue Dai and Yao, {Hu Qing}",

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T1 - Recovering ethylene from off-gas of ethylene oxide plant by pressure swing adsorption

AU - Liu, Xiao Qin

AU - Dai, Yue

AU - Yao, Hu Qing

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Y1 - 2006/2

N2 - 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 C2H4 and C2H6 mixture and the off-gas from the ethylene oxide plant as well as the effects of O2, CH4 and CO2 on the C2H4 adsorption were investigated. Experimental results show that the adsorbent NJ has a high adsorption selectivity of C2H4, and has much higher capacity of C2H4 than that of C2H6. The proposed adsorbent NJ also shows very stable characteristics for PSA performance.

AB - 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 C2H4 and C2H6 mixture and the off-gas from the ethylene oxide plant as well as the effects of O2, CH4 and CO2 on the C2H4 adsorption were investigated. Experimental results show that the adsorbent NJ has a high adsorption selectivity of C2H4, and has much higher capacity of C2H4 than that of C2H6. The proposed adsorbent NJ also shows very stable characteristics for PSA performance.

KW - Adsorbent

KW - Ethylene

KW - Ethylene oxide

KW - Pressure swing adsorption

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SN - 1005-9954

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JF - Huaxue Gongcheng/Chemical Engineering (China)

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ER -

Recovering ethylene from off-gas of ethylene oxide plant by pressure swing adsorption

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Keywords

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