EXPERIMENTAL STUDY ON VACUUM PRESSURE SWING ADSORPTION OF LOW CONCENTRATION COAL-BED METHANE IN TWIN TOWERS

ZHU Tao; HAN Yi-wei; WANG Ruo-nan; ZHANG Xing; LIU Hai-bing; LIU Feng

doi:10.13205/j.hjgc.202010025

Volume 38 Issue 10

Nov. 2020

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ZHU Tao, HAN Yi-wei, WANG Ruo-nan, ZHANG Xing, LIU Hai-bing, LIU Feng. EXPERIMENTAL STUDY ON VACUUM PRESSURE SWING ADSORPTION OF LOW CONCENTRATION COAL-BED METHANE IN TWIN TOWERS[J]. ENVIRONMENTAL ENGINEERING , 2020, 38(10): 156-161,46. doi: 10.13205/j.hjgc.202010025

Citation:

ZHU Tao, HAN Yi-wei, WANG Ruo-nan, ZHANG Xing, LIU Hai-bing, LIU Feng. EXPERIMENTAL STUDY ON VACUUM PRESSURE SWING ADSORPTION OF LOW CONCENTRATION COAL-BED METHANE IN TWIN TOWERS[J]. ENVIRONMENTAL ENGINEERING , 2020, 38(10): 156-161,46. doi: 10.13205/j.hjgc.202010025

Citation:

ZHU Tao, HAN Yi-wei, WANG Ruo-nan, ZHANG Xing, LIU Hai-bing, LIU Feng. EXPERIMENTAL STUDY ON VACUUM PRESSURE SWING ADSORPTION OF LOW CONCENTRATION COAL-BED METHANE IN TWIN TOWERS[J]. ENVIRONMENTAL ENGINEERING , 2020, 38(10): 156-161,46. doi: 10.13205/j.hjgc.202010025

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EXPERIMENTAL STUDY ON VACUUM PRESSURE SWING ADSORPTION OF LOW CONCENTRATION COAL-BED METHANE IN TWIN TOWERS

doi: 10.13205/j.hjgc.202010025

1. Institute of Atmospheric Environment Management and Pollution Control, China University of Mining & Technology(Beijing), Beijing 100083, China;
2. Ministry of Environmental Protection Solid Waste and Chemicals Management Technology Center, Beijing 100029, China;
3. Suzhou University of Science & Technology, Suzhou 215009, China

Received Date: 2019-11-05

Abstract

Abstract

Low concentration coal-bed gas resources are rich in China, but the utilization rate is low, and most of it is directly emitted into the environment, not only caused the waste of resources, also increased atmospheric greenhouse effect. Therefore, the study on enrichment and separation of low-concentration coal-bed gas by pressure-swing adsorption (PSA) technology has the dual function of energy saving and environmental protection. In this paper, the dual-tower vacuum PSA device was used, and the adsorbent in the experiment was activated carbon and carbon molecular sieve mixing adsorbent. The influence of adsorption pressure, half-period, adsorption tower height diameter ratio and mixed adsorbent ratio on the separation effect of CH₄ were investigated, and the optimal process conditions were determined as follows:180 kPa, 90 s, 7 and 2, namely. The results could provide technical support for the resource utilization of low concentration coal-bed gas.
- low concentration,
- coal-bed methane,
- activated carbon,
- optimization,
- process condition

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References(11)

References

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