Citation: XU Yong, YAN Shi-Zhi, YE Tong-Qi, ZHANG Zhao, LI Quan-Xin. Dimethyl Ether Production from Biomass Char and CO₂-Rich Bio-Syngas[J]. Acta Physico-Chimica Sinica, ;2011, 27(08): 1926-1932. doi: 10.3866/PKU.WHXB20110810 shu

Dimethyl Ether Production from Biomass Char and CO₂-Rich Bio-Syngas

1.
Department of Chemical Physics, Anhui Key Laboratory of Biomass Clean Energy, University of Science and Technology of China, Hefei 230026, P. R. China

Received Date: 25 April 2011
Available Online: 13 June 2011
Fund Project: 国家自然科学基金(50772107) (50772107) 国家重点基础研究发展规划项目(973)(2007CB210206) (973)(2007CB210206)国家高技术研究发展计划项目(863)(2009AA05Z435)资助 (863)(2009AA05Z435)

We report on a novel approach toward dimethyl ether (DME) synthesis using crude CO₂-rich bio-syngas and biomass char. The crude bio-syngas was derived from bio-oil reforming and was initially conditioned by catalytic conversion into CO-rich bio-syngas using biomass char over the Ni/Al₂O₃ catalyst. The molar ratio of CO₂ to CO significantly decreased from 6.33 in the CO₂-rich bio-syngas to 0.21 after bio-syngas conditioning at 800 °C. The yield of dimethyl ether from the conditioned bio-syngas was about four times higher than that from the CO₂-rich bio-syngas over the Cu-ZnO-Al₂O₃/HZSM-5 catalyst. This work potentially provides a useful approach toward producing biofuels and chemicals from bio-syngas and a novel utilization of biomass char.
- Biomass char,
- Dimethyl ether,
- Bio-syngas conditioning,
- NiO-Al₂O₃ catalyst,
- Cu-ZnO-Al₂O₃/HZSM-5 catalyst
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沈阳化工大学材料科学与工程学院沈阳 110142

Dimethyl Ether Production from Biomass Char and CO2-Rich Bio-Syngas

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通讯作者: 陈斌, bchen63@163.com

Dimethyl Ether Production from Biomass Char and CO₂-Rich Bio-Syngas