Recovery of Hydrogen from Ammonia Plant Tail Gas by Absorption-Hydration Hybrid Method

›› 2011, Vol. 19 ›› Issue (5): 784-791.

• SELECTED PAPERS FROM THE 4TH NATIONAL CONFERENCE ON MASS TRANSFER AND SEPARATION ENGINEERING AND IN HONOUR OF PROF. K. T. YU (YU GUOCONG) • Previous Articles Next Articles

Recovery of Hydrogen from Ammonia Plant Tail Gas by Absorption-Hydration Hybrid Method

LIU Bei, WANG Xiulin, TANG Xulong, YANG Lanying, SUN Changyu, CHEN Guangjin

State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Beijing 102249, China

Received:2011-06-02 Revised:2011-08-31 Online:2011-10-28 Published:2011-10-28
Supported by:
Supported by the National Natural Science Foundation of China (20925623, 21006126);the Special Funds for Major State Basic Research Program of China (No. 2009CB219504);the Research Funds of China University of Petroleum, Beijing (BJBJRC-2010-01);Beijing Nova Program (2010B069)

Recovery of Hydrogen from Ammonia Plant Tail Gas by Absorption-Hydration Hybrid Method

刘蓓, 王秀林, 唐绪龙, 杨兰英, 孙长宇, 陈光进

State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Beijing 102249, China

通讯作者: CHEN Guangjin,E-mail:gjchen@cup.edu.cn
基金资助:
Supported by the National Natural Science Foundation of China (20925623, 21006126);the Special Funds for Major State Basic Research Program of China (No. 2009CB219504);the Research Funds of China University of Petroleum, Beijing (BJBJRC-2010-01);Beijing Nova Program (2010B069)

Abstract

Abstract: In this work, the absorption-hydration hybrid method was used to recover (hydrogen+nitrogen) from (hydrogen+nitrogen+methane+argon) tail gas mixtures of synthetic ammonia plant through hydrate formation/dissociation. A high-pressure reactor with magnetic stirrer was used to study the separation efficiency. The in-fluences of the concentration of antiagglomerant, temperature, pressure, initial gas-liquid volume ratio, and oil-water volume ratio on the separation efficiency were systematically investigated in the presence of tetrahydro-furan (THF). Antiagglomerant was used to disperse hydrate particles into the condensate phase for water-in-oil emulsion system. Since nitrogen is the material for ammonia production, the objective production in our separation process is (hydrogen+nitrogen). Our experimental results show that by adopting appropriate operating conditions, high concentration of (hydrogen+nitrogen) can be obtained using the proposed technology based on forming hydrate.

Key words: separation, hydrate, hydrogen, synthetic ammonia plant tail gas

摘要： In this work, the absorption-hydration hybrid method was used to recover (hydrogen+nitrogen) from (hydrogen+nitrogen+methane+argon) tail gas mixtures of synthetic ammonia plant through hydrate formation/dissociation. A high-pressure reactor with magnetic stirrer was used to study the separation efficiency. The in-fluences of the concentration of antiagglomerant, temperature, pressure, initial gas-liquid volume ratio, and oil-water volume ratio on the separation efficiency were systematically investigated in the presence of tetrahydro-furan (THF). Antiagglomerant was used to disperse hydrate particles into the condensate phase for water-in-oil emulsion system. Since nitrogen is the material for ammonia production, the objective production in our separation process is (hydrogen+nitrogen). Our experimental results show that by adopting appropriate operating conditions, high concentration of (hydrogen+nitrogen) can be obtained using the proposed technology based on forming hydrate.

关键词: separation, hydrate, hydrogen, synthetic ammonia plant tail gas

LIU Bei, WANG Xiulin, TANG Xulong, YANG Lanying, SUN Changyu, CHEN Guangjin. Recovery of Hydrogen from Ammonia Plant Tail Gas by Absorption-Hydration Hybrid Method[J]. , 2011, 19(5): 784-791.

刘蓓, 王秀林, 唐绪龙, 杨兰英, 孙长宇, 陈光进. Recovery of Hydrogen from Ammonia Plant Tail Gas by Absorption-Hydration Hybrid Method[J]. , 2011, 19(5): 784-791.

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Recovery of Hydrogen from Ammonia Plant Tail Gas by Absorption-Hydration Hybrid Method

Recovery of Hydrogen from Ammonia Plant Tail Gas by Absorption-Hydration Hybrid Method

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