共 52 条
Biomethane upgrading to transportation fuel quality using spent coffee for carbon dioxide capture in pressure swing adsorption
被引:29
作者:
Abd, Ammar Ali
[1
,2
,5
]
Othman, Mohd Roslee
[2
,3
]
Shabbani, Hind Jihad Kadhim
[2
]
Helwani, Zuchra
[4
]
机构:
[1] Curtin Univ, Dept Chem Engn, Kent St, Bentley, WA 6102, Australia
[2] Univ Sains Malaysia, Sch Chem Engn, Nibong Tebal 14300, Pulau Pinang, Malaysia
[3] Ind Univ Ho Chi Minh City, Chem Engn Dept, 12 Nguyen Van Bao, Ho Chi Minh City, Vietnam
[4] Univ Riau, Dept Chem Engn, Pekanbaru 28293, Indonesia
[5] Al Qasim Green Univ, Coll Engn, Babylon 51002, Iraq
来源:
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
|
2022年
/
10卷
/
02期
关键词:
CO2;
capture;
Biogas upgrading;
Pressure swing adsorption;
Heat of adsorption;
Biomethane production;
ACTIVATED CARBON;
BIOGAS;
SEPARATION;
MODEL;
APPROXIMATION;
KINETICS;
PSA;
D O I:
10.1016/j.jece.2022.107169
中图分类号:
X [环境科学、安全科学];
学科分类号:
08 ;
0830 ;
摘要:
Biomethane upgrading from raw biogas is a potential fuel for transportation to minimize the greenhouse gases emissions from the transport sector. Biomethane upgrading a binary biogas comprising 32% CO2 and 68% CH4 by pressure swing adsorption of two beds-four steps process, mediated by spent coffee was experimentally studied. Breakthrough curves experiment was conducted to investigate the methane/carbon dioxide adsorption over spent coffee adsorbent at pressure of 2 bar. From the experimental results, a model was developed using Aspen Adsorption platform to estimate the temperature profile of the spent coffee's bed at four positions of 1 cm, 5 cm, 7.5 cm, and 10 cm. In addition, the upgrading process performance in the presence of three different moisture contents of 3%, 5%, and 10% was also investigated. The experimental data showed that the developed model could represent the process performance with high degree of accuracy. Results from this study reveal that spent coffee with PSA system operated under specific operating conditions yielded biomethane with purity of 97% and recovery of 95.43%. Introduction of moisture with concentration up to 10% improved the CO2 removal rate and accordingly the biomethane purity. This study presents raw coffee as an effective adsorbent, competing other classes of carbon-based materials in separating CO2 to produce high biomethane purity that matches the transportation fuel quality.
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页数:11
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