Investigation on separation of CO2 from biogas by hydrate method in impinging stream reactor

被引：0
|
作者：
Fang S. [1 ,2 ]
Zhang X. [1 ]
Li S. [1 ]
Bai D. [1 ]
Bai J. [1 ,2 ]
机构：
[1] School of Chemical Engineering and Energy, Zhengzhou University, Zhengzhou, 450001, Henan
[2] Outstanding Foreign Scientists' Workroom, Zhengzhou, 450001, Henan
来源：
Huagong Xuebao/CIESC Journal | 2020年 / 71卷 / 05期
关键词：
Biogas; CO[!sub]2[!/sub] capture; Hydrate; Separation; Separation factor;
D O I：
10.11949/0438-1157.20191432
中图分类号：
学科分类号：
摘要：
The characteristics of CO2 separation in biogas by hydrate method in impinging flow reactor were investigated experimentally. Two different systems, pure water and sodium dodecyl sulfate (SDS), were selected to investigate the effects of pressure, temperature and impact intensity during hydrate formation process. The experimental results showed that the increase of pressure in pure water system or SDS system was conducive to the rapid formation of hydrate, but not conducive to the CO2 capture. By changing the impact intensity of the impinging stream reactor, it was found that the CO2 separation factor (S.F.) reached the maximum in both systems when the impact intensity was 0.128, the maximum value of S.F were 138.9 and 64.5, respectively.The experimental results showed that the additive SDS could promote the formation of hydrate, and the optimal concentration was 600 mg/L when the gas consumption, CO2 recovery S.Fr.(CO2) and CH4 recovery S.Fr.(CH4) reached the maximum. However, the promotion effect of SDS on CH4 hydrate formation process was greater than that of CO2 hydrate, which was not conducive to the CO2 separation from biogas, but the separation factor of CO2 would be reduced. © All Right Reserved.
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页码：2099 / 2108
页数：9
相关论文
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