Heterobimetallic zeolite, InV-ZSM-5, enables efficient conversion of biomass derived ethanol to renewable hydrocarbons [electronic resource]

• Ngôn ngữ: eng
• Ký hiệu phân loại: 664.7 Grains, other seeds, their derived products
• Thông tin xuất bản: Washington, D.C. : Oak Ridge, Tenn. : United States. Dept. of Energy. Office of Science ; Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy, 2015
• Mô tả vật lý: Size: Article No. 16039 : , digital, PDF file.
• Bộ sưu tập: Metadata
• ID: 263577
• Chủ đề: 1. 09 biomass fuels; 2. Catalytic mechanisms; 3. Heterogeneous catalysis

Tóm tắt

 Direct catalytic conversion of ethanol to hydrocarbon blend-stock can increase biofuels use in current vehicles beyond the ethanol blend-wall of 10?15%. Literature reports describe quantitative conversion of ethanol over zeolite catalysts but high C<
 sub>
 2<
 /sub>
  hydrocarbon formation renders this approach unsuitable for commercialization. Furthermore, the prior mechanistic studies suggested that ethanol conversion involves endothermic dehydration step. In this paper, we report the complete conversion of ethanol to hydrocarbons over InV-ZSM-5 without added hydrogen and which produces lower C<
 sub>
 2<
 /sub>
  (<
 13%) as compared to that over H-ZSM-5. Experiments with C<
 sub>
 2<
 /sub>
 H<
 sub>
 5<
 /sub>
 OD and in situ DRIFT suggest that most of the products come from the hydrocarbon pool type mechanism and dehydration step is not necessary. Finally, our method of direct conversion of ethanol offers a pathway to produce suitable hydrocarbon blend-stock that may be blended at a refinery to produce fuels such as gasoline, diesel, JP-8, and jet fuel, or produce commodity chemicals such as BTX.