Production of H2 from aluminium/water reaction and its potential for CO2 methanation

4th International Conference on Civil and Environmental Engineering for Sustainability

地球科学;生态环境科学;经济学

Khai Phung, Khor^1 ; Sethupathi, Sumathi^1 ; Siang Piao, Chai^2

Faculty of Engineering and Green Technology, Universiti Tunku Abdul Rahman, Jalan Universiti, Bandar Barat, Kampar, Perak

31900, Malaysia^1

School of Engineering, Monash University, Jalan Lagoon Selatan, Bandar Sunway, Selangor

47500, Malaysia^2

关键词: Aluminum-water reactions;    Batch reactions;    CO2 removal;    Distilled water;    H2 production;    Nickel catalyst;    Parameter studies;    Ultra-pure water;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/140/1/012020/pdf
DOI  :  10.1088/1755-1315/140/1/012020

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

Carbon dioxide (CO2) is a natural gas that presents in excess in the atmosphere. Owing to its ability to cause global warming, capturing and conversion of CO2have attracted much attention worldwide. CO2methanation using hydrogen (H2) is believed to be a promising route for CO2removal. In the present work, H2is produced using aluminum-water reaction and tested for its ability to convert CO2to methane (CH4). Different type of water i.e. tap water, distilled water, deionized water and ultrapure water, concentration of sodium hydroxide (NaOH) (0.2 M to 1.0 M) and particle size of aluminum (45 m to 500 μm) were varied as parameter study. It was found that the highest yield of H2was obtained using distilled water, 1.0 M of NaOH and 45μm particle size of aluminium. However, the highest yield of methane was achieved using a moderate and progressive H2production (distilled water, 0.6 M of NaOH and 45 μm particle size of aluminium) which allowed sufficient time for H2to react with CO2. It was concluded that 1130 ml of H2can produce about 560 ppm of CH4within 25 min of batch reaction using nickel catalyst.