真空变压吸附提纯沼气的实验

doi:10.11949/j.issn.0438-1157.20170821

化工学报 ›› 2018, Vol. 69 ›› Issue (2): 741-749.DOI: 10.11949/j.issn.0438-1157.20170821

真空变压吸附提纯沼气的实验

田彩霞¹, 沈圆辉¹, 张东辉¹, 甘海南²

1 化学工程联合国家重点实验室, 天津大学化工学院, 天津 300072;
2 山东十方环保能源股份有限公司, 山东济南 250101

收稿日期:2017-06-27 修回日期:2017-09-19 出版日期:2018-02-05 发布日期:2018-02-05
通讯作者: 张东辉
基金资助:
化学工程联合国家重点实验室开放课题资助项目（SKL-ChE-16B05）。

Biogas upgrading by vacuum pressure swing adsorption process

TIAN Caixia¹, SHEN Yuanhui¹, ZHANG Donghui¹, GAN Hainan²

1 State Key Laboratory of Chemical Engineering, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China;
2 Shifang Environment Protection & Bio-technology, Jinan 250101, Shandong, China

Received:2017-06-27 Revised:2017-09-19 Online:2018-02-05 Published:2018-02-05
Supported by:
supported by the State Key Laboratory of Chemical Engineering (SKL-ChE-16B05).

摘要/Abstract

摘要：

以煤基碳分子筛为沼气净化吸附剂，借助扫描电镜观察了碳分子筛的表面形貌，并通过物理化学吸附仪表征了碳分子筛的孔径分布。基于静态容积法测定了CO₂与CH₄在碳分子筛的静态吸附量，并估算了CO₂与CH₄在碳分子筛的动力学扩散系数。单塔穿透实验考察了吸附压力与进料流量对原料气中CO₂穿透曲线的影响，选取吸附压力为0.3 MPa，进料流量为4 L·min-1进行两塔六步真空变压吸附提纯沼气的实验研究，并考察了吸附步骤时长与产品气冲洗率对CH₄富集效果的影响。实验结果表明，吸附步骤时长为140 s，冲洗率为0.05时，产品气中CH₄纯度可达98%，收率可达82%。

关键词: 分子筛, 真空变压吸附, 沼气, 甲烷, 二氧化碳

Abstract:

The carbon molecular sieve was adopted as adsorbent for biogas upgrading, and the morphologies of carbon molecular sieve were examined by scanning electron microscopy while the pore-size distribution was characterized by CO₂ adsorption at 273.15 K. With the volume method, the adsorption isotherms of carbon dioxide and methane on carbon molecular sieve were measured at 283.15, 303.15, and 323.15 K and at pressure up to 0.5 MPa, while the diffusion coefficient of carbon dioxide and methane on carbon molecular sieve were also determined. The breakthrough experiments were implemented on single fixed bed, and the effects of adsorption pressure and feed flow rate on the breakthrough curve of CO₂ were explored. Two-bed-six-step vacuum pressure swing adsorption (VPSA) process was carry out with the adsorption pressure of 0.3 MPa and the feed flow rate of 4 L·min-1. In addition, the effects of adsorption step time and product flush ratio on separation performances were also investigated. The experimental results show that the purity of methane could be achieved to 98% with a recovery of 82% when adsorption time was set to be 140 s with a product flush ratio of 0.05.

Key words: molecular sieve, vacuum pressure swing adsorption, biogas, methane, carbon dioxide

中图分类号:

TQ028.1

田彩霞, 沈圆辉, 张东辉, 甘海南. 真空变压吸附提纯沼气的实验[J]. 化工学报, 2018, 69(2): 741-749.

TIAN Caixia, SHEN Yuanhui, ZHANG Donghui, GAN Hainan. Biogas upgrading by vacuum pressure swing adsorption process[J]. CIESC Journal, 2018, 69(2): 741-749.

参考文献 31

[1]	WEILAND P. Biogas production:current state and perspectives[J]. Applied Microbiology and Biotechnology, 2010, 85(4):849-860.
[2]	付尹宣, 桂双林, 廖梦垠, 等. 混合厌氧发酵产沼气研究进展[J]. 能源研究与管理, 2016, (1):11-14. FU Y X, GUI S L, LIAO M Y, et al. Research advances in anaerobic co-digestion of biogas[J]. Energy Research and Management, 2016, (1):11-14.
[3]	MAO C L, FENG Y Z, WANG X J, et al. Review on research achievements of biogas from anaerobic digestion[J]. Renewable and Sustainable Energy Reviews, 2015, 45:540-555.
[4]	王艳芹, 付龙云, 杨光, 等. 农村有机生活垃圾等混合物料厌氧发酵产沼气性能[J]. 农业环境科学学报, 2016, 35(6):1173-1179. WANG Y Q, FU L Y, YANG G, et al. Biogas production of rural organic wastes during anaerobic digestion[J]. Journal of Agricultural Resources and Environment, 2016, 35(6):1173-1179.
[5]	刘荣厚, 郝元元, 叶子良, 等. 沼气发酵工艺参数对沼气及沼液成分影响的实验研究[J]. 农业工程学报, 2006, 22:85-88. LIU R H, HAO Y Y, YE Z L, et al. Experimental research on technical parameters of anaerobic fermentation for biogas production[J]. Transactions of the Chinese Society of Agricultural Engineering, 2006, 22:85-88.
[6]	RYCKEBOSCH E, DROUILLON M, VERVAEREN H. Techniques for transformation of biogas to biomethane[J]. Biomass and Bioenergy, 2011, 35(5):1633-1645.
[7]	YANG L C, GE X M, WAN C X, et al. Progress and perspectives in converting biogas to transportation fuels[J]. Renewable and Sustainable Energy Reviews, 2014, 40:1133-1152.
[8]	FEROLDI M, NEVES A C, BACH V R, et al. Adsorption technology for the storage of natural gas and biomethane from biogas[J]. International Journal of Energy Research, 2016, 40(14):1890-1900.
[9]	MILTNER M, MAKARUK A, HARASEK M. Review on available biogas upgrading technologies and innovations towards advanced solutions[J]. Journal of Cleaner Production, 2017, 161:1329-1337.
[10]	BAUER F, PERSSON T, HULTEBERG C, et al. Biogas upgrading-technology overview, comparison and perspectives for the future[J]. Biofuels, Bioproducts and Biorefining, 2013, 7(5):499-511.
[11]	ANDRIANI D, WRESTA A, ATMAJA T D, et al. A review on optimization production and upgrading biogas through CO2 removal using various techniques[J]. Appl. Biochem. Biotechnol., 2014, 172(4):1909-1928.
[12]	银醇彪. 真空变压吸附净化升级沼气过程优化[D]. 天津:天津大学, 2014. YIN C B. Optimization of vacuum pressure swing adsorption process for biogas upgrading[D]. Tianjin:Tianjin University, 2014.
[13]	SINGHAL S, AGARWAL S, ARORA S, et al. Upgrading techniques for transformation of biogas to bio-CNG:a review[J]. International Journal of Energy Research, 2017, doi:10.1002/er.3719.
[14]	ROTUNNO P, LANZINI A, LEONE P. Energy and economic analysis of a water scrubbing based biogas upgrading process for biomethane injection into the gas grid or use as transportation fuel[J]. Renewable Energy, 2017, 102:417-432.
[15]	RIVA M, CAMPESTRINI M, TOUBASSY J, et al. Solid-liquid-vapor equilibrium models for cryogenic biogas upgrading[J]. Industrial & Engineering Chemistry Research, 2014, 53(44):17506-17514.
[16]	VALENTI G, ARCIDIACONO A, RUIZJ A N. Assessment of membrane plants for biogas upgrading to biomethane at zero methane emission[J]. Biomass and Bioenergy, 2016, 85:35-47.
[17]	ALONSO-VICARIO A, OCHOA-GOMEZ J R, GIL-RIO S, et al. Purification and upgrading of biogas by pressure swing adsorption on synthetic and natural zeolites[J]. Microporous and Mesoporous Materials, 2010, 134(1):100-107.
[18]	YIN C B, SUN W N, YANG H W, et al. Optimization of three-bed VPSA system for biogas upgrading[J]. Chemical Engineering Science, 2015, 135:100-108.
[19]	ARYA A, DIVEKAR S, RAWAT R, et al. Upgrading biogas at low pressure by vacuum swing adsorption[J]. Industrial & Engineering Chemistry Research, 2014, 54(1):404-413.
[20]	王骏成, 胡明振, 孙林兵, 等. 碳分子筛变压吸附提纯沼气的性能[J]. 化工进展, 2015, 34(9):3452-3455. WANG J C, HU M Z, SUN L B, et al. Biogas purification using carbon molecular sieves by pressure swing adsorption[J]. Chemical Industry and Engineering Progress, 2015, 34(9):3452-3455.
[21]	张湜, 陈文亮, 李晖, 等. 真空变压吸附沼气净化过程的仿真研究[J]. 化工学报, 2013, 64(4):1300-1305. ZHANG S, CHEN W L, LI H, et al. Numerical simulation of vacuum pressure swing adsorption for biogas upgrading[J]. CIESC Journal, 2013, 64(4):1300-1305.
[22]	张际, 段龙飞. 变压吸附技术在沼气提纯中的应用[J]. 工程建设与设计, 2017, (10):141-142. ZHANG J, DUAN L F. The application of pressure swing absorption technology in biogas purification[J]. Construction Design for Project, 2017, (10):141-142.
[23]	杨海燕, 李文哲, 高海云. 碳基吸附剂提纯CH4/CO2混合气中CH4的研究[J]. 农业机械学报, 2013, 44(5):154-157. YANG H Y, LI W Z, GAO H Y. Purification of CH4 from CH4/CO2 mixture using carbon-based adsorbents[J]. Transactions of the Chinese Society for Agricultural Machinery, 2013, 44(5):154-157.
[24]	KAPOOR A, YANG R T. Kinetic separation of methane-carbon dioxide mixture by adsorption on molecular sieve carbon[J]. Chemical Engineering Science, 1989, 44(8):1723-1733.
[25]	CAVENATI S, GRANDE A C, RODRIGUES A E. Upgrade of methane from landfill gas by pressure swing adsorption[J]. Energy & Fuels, 2005, 19(6):2545-2555.
[26]	KIM M B, BAE Y S, CHOI D K, et al. Kinetic separation of landfill gas by a two-bed pressure swing adsorption process packed with carbon molecular sieve:non-isothermal operation[J]. Industrial & Engineering Chemistry Research, 2006, 45(14):5050-5058.
[27]	BAE Y S, MOON J H, AHN H, et al. Effects of adsorbate properties on adsorption mechanism in a carbon molecular sieve[J]. Korean Journal of Chemical Engineering, 2004, 21(3):712-720.
[28]	BAE Y S, LEE C H. Sorption kinetics of eight gases on a carbon molecular sieve at elevated pressure[J]. Carbon, 2005, 43(1):95-107.
[29]	TOTH J. An uniform interpretation of gas/solid adsorption[J]. Journal of Colloid & Interface Science, 1995, 79(1):85-95.
[30]	王斐, 邵晓红, 汪文川, 等. CH4和CO2在活性炭微球内扩散系数的测定[J]. 化工学报, 2006, 57(8):1891-1896. WANG F, SHAO X H, WANG W C, et al. Measurements of diffusion coefficients for methane and carbon dioxide inactivated meso-carbon microbeadsp[J]. Journal of Chemical Industry and Engineering (China), 2006, 57(8):1891-1896.
[31]	DO D D. Adsorption Analysis:Equilibria and Kinetics[M]. London:Imperial College Press, 1998:64.

真空变压吸附提纯沼气的实验

Biogas upgrading by vacuum pressure swing adsorption process

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