Hydrogen Generation from CO2 Reforming of Biomass-Derived Methanol on Ni/SiO2 Catalyst

• Published in: Topics in catalysis Vol. 66; no. 1-4; pp. 41 - 52
• Main Authors: Phuong, Pham Thi Thuy, Phuong, Nguyen Nguyen, Kumar, P. Senthil, Duy, Nguyen Phuc Hoang, Van Le, Quyet, Ngoc, Le Thi Bao, Jalil, A. A., Rajendran, Saravanan, Cheng, Chin Kui, Nguyen, Thanh-Huong, Dinh, Minh Tuan Nguyen, Vo, Dai-Viet N.
• Format: Journal Article
• Language: English
• Published: New York Springer US 2023; Springer Nature B.V
• Subjects: Carbon dioxide; Catalysis; Catalysts; Catalytic activity; Characterization and Evaluation of Materials; Chemistry; Chemistry and Materials Science; Gasification; Hydrogen production; Industrial Chemistry/Chemical Engineering; Methanol; Original Paper; Pharmacy; Physical Chemistry; Reforming; Silicon dioxide; Methanol CO; Reforming; Hydrogen; Ni-based catalyst; Syngas
• ISSN: 1022-5528; 1572-9028
• DOI: 10.1007/s11244-022-01621-6

CO
2
reforming of methanol for producing hydrogen was experimentally carried out in a fixed-bed reactor on 10%Ni/SiO
2
. The 10%Ni/SiO
2
was completely reduced during H
2
activation and it had the surface area of 240.5 m
2
/g. As CO
2
reforming of methanol has an endothermic nature, the substantial improvement in methanol conversion from 52 to 99% was evident with rising temperature from 450 to 550 °C, respectively. H
2
/CO ratios varying within 1.65–1.76 were evidenced at different reaction temperatures. These H
2
/CO ratios are preferred as feedstocks for long-chain hydrocarbons generation in Fischer–Tropsch production. Ni
0
metallic phase was maintained during CO
2
reforming of methanol and hence catalytic activity was stable within 8 h on-stream. Although amorphous and graphitic species were unavoidably yielded on catalyst surface, catalytic deterioration in CO
2
reforming of methanol was not observed due to the concomitant CO
2
gasification of surface carbonaceous species during reaction.