Clathrate Hydrate Capture of CO2 from Simulated Flue Gas with Cyclopentane/Water Emulsion

›› 2010, Vol. 18 ›› Issue (2): 202-206.

• SEPARATION SCIENCE AND ENGINEERING • Previous Articles Next Articles

Clathrate Hydrate Capture of CO₂ from Simulated Flue Gas with Cyclopentane/Water Emulsion

LI Shifeng^1,2, FAN Shuanshi², WANG Jinqu¹, LANG Xuemei², WANG Yanhong²

1. State Key Laboratory of Fine Chemicals, School of Chemical Engineering, Dalian University of Technology, Dalian 116012, China;
2. Key Laboratory of Enhanced Heat Transfer and Energy Conversation, Ministry of Education, South China University of Technology, Guangzhou 510640, China

Received:2009-09-01 Revised:2009-12-26 Online:2010-04-28 Published:2010-04-28
Supported by:
Supported by the National High Technology Research and Development Program of China(2007AA03Z229);the National Natural Science Foundation of China(20876019)

Clathrate Hydrate Capture of CO₂ from Simulated Flue Gas with Cyclopentane/Water Emulsion

李士凤^1,2, 樊栓狮², 王金渠¹, 郎雪梅², 王燕鸿²

1. State Key Laboratory of Fine Chemicals, School of Chemical Engineering, Dalian University of Technology, Dalian 116012, China;
2. Key Laboratory of Enhanced Heat Transfer and Energy Conversation, Ministry of Education, South China University of Technology, Guangzhou 510640, China

通讯作者: FAN Shuanshi,E-mail:ssfan@scut.edu.cn
基金资助:
Supported by the National High Technology Research and Development Program of China(2007AA03Z229);the National Natural Science Foundation of China(20876019)

Abstract

Abstract: Capture of CO₂ by hydrate is one of the attractive technologies for reducing greenhouse effect.The primary challenges are the large energy consumption,low hydrate formation rate and separation efficiency.This work presents a new method for capture of CO₂ from simulated flue gasCO₂(16.60%,by mole)/N₂ binary mixture by formation of cyclopentane(CP) hydrates at initial temperature of 8.1℃ with the feed pressures from 2.49 to 3.95 MPa.The effect of cyclopentane and cyclopentane/water emulsion on the hydrate formation rate and CO₂ separation efficiency was studied in a 1000 ml stirred reactor.The results showed the hydrate formation rate could be increased remarkably with cyclopentane/water emulsion.CO₂ could be enriched to 43.97%(by mole) and 35.29%(by mole) from simulated flue gas with cyclopentane and cyclopentane/water(O/W) emulsion,respectively,by one stage hydrate separation under low feed pressure.CO₂ separation factor with cyclopentane was 6.18,higher than that with cyclopentane/water emulsion(4.01), in the range of the feed pressure.The results demonstrated that cyclopentane/water emulsion is a good additive for efficient hydrate capture of CO₂.

Key words: cyclopentane, hydrate, CO₂ capture, emulsion, flue gas

摘要： Capture of CO₂ by hydrate is one of the attractive technologies for reducing greenhouse effect.The primary challenges are the large energy consumption,low hydrate formation rate and separation efficiency.This work presents a new method for capture of CO₂ from simulated flue gasCO₂(16.60%,by mole)/N₂ binary mixture by formation of cyclopentane(CP) hydrates at initial temperature of 8.1℃ with the feed pressures from 2.49 to 3.95 MPa.The effect of cyclopentane and cyclopentane/water emulsion on the hydrate formation rate and CO₂ separation efficiency was studied in a 1000 ml stirred reactor.The results showed the hydrate formation rate could be increased remarkably with cyclopentane/water emulsion.CO₂ could be enriched to 43.97%(by mole) and 35.29%(by mole) from simulated flue gas with cyclopentane and cyclopentane/water(O/W) emulsion,respectively,by one stage hydrate separation under low feed pressure.CO₂ separation factor with cyclopentane was 6.18,higher than that with cyclopentane/water emulsion(4.01), in the range of the feed pressure.The results demonstrated that cyclopentane/water emulsion is a good additive for efficient hydrate capture of CO₂.

关键词: cyclopentane, hydrate, CO₂ capture, emulsion, flue gas

LI Shifeng, FAN Shuanshi, WANG Jinqu, LANG Xuemei, WANG Yanhong. Clathrate Hydrate Capture of CO₂ from Simulated Flue Gas with Cyclopentane/Water Emulsion[J]. , 2010, 18(2): 202-206.

李士凤, 樊栓狮, 王金渠, 郎雪梅, 王燕鸿. Clathrate Hydrate Capture of CO₂ from Simulated Flue Gas with Cyclopentane/Water Emulsion[J]. , 2010, 18(2): 202-206.

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Clathrate Hydrate Capture of CO₂ from Simulated Flue Gas with Cyclopentane/Water Emulsion

Clathrate Hydrate Capture of CO₂ from Simulated Flue Gas with Cyclopentane/Water Emulsion

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