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Edition and Publication:
< Natural Gas and Oil > Editorial Department
Hosted by:
China Petroleum Engineering & Construction Corporation Southwest Company
Authorized by:
China Petroleum Engineering & Construction Corporation
Co-hosted by:
Overseas Research Center of Research Institute of Petroleum Exploration and Development
Editor in Chief:
Du Tonglin
Vice Editor in Chief:
Tang Xiaoyong,Pu Liming
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No.6, Shenghua Road, High-tech District, Chengdu, Sichuan, China
Postal Code:
610041
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028-86014500
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Issue:ISSN 1006-5539
CN 51-1183/TE

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Study on Measures to Control BTEX and VOC Emissions from Natural Gas Dehydration Units

Author of the article:Liu Jia, Deng Daoming , Wan Yufei

Author's Workplace：1.National Engineering Laboratory for Pipeline Safety, MOE Key Laboratory of Petroleum Engineering, Beijing Key Laboratory of Urban Oil and Gas Distribution Technology; 2.China University of Petroleum China National Offshore Oil Corp.,Tianjin Branch

Key Words：Natural gas; Dehydration; BTEX emission; VOC emission; Control measures

Abstract：The BTEX and VOC emission from natural gas dehydration units is a significant environmental concern. The main BTEX and VOC emission control methods for gas dehydration units, such as combustion, condensate recovery and dehydration process optimization, are reviewed, where the StripBurn, R-BTEX and Drizo processes are computed and analyzed in detail. The results show that the energy consumption of the StripBurn process goes down with the decreased flash temperature and flow rate of stripping gas, and that the energy consumption of the Drizo process declines with the increased condensing temperature. Advantages and disadvantages of the listed BTEX and VOC emission control measures are investigated, and StripBurn process is recommended for its good tradeoff between energy saving, environmental protection, economy and water dew point depression.