255 research outputs found

    Selective hydrogenolysis of sorbitol on Ni/La202CO3 catalysts

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    采用共沉淀法制各了具有协同稳定作用的Ni/La2O2CO3催化剂,用于山梨醇选择性氢解为小分子醇的研究。采用X射线衍射、氢气程序升温还原、C02程序升温脱附和扫描电镜对催化剂进行了表征。考察了不同配比Ni、La的加氢位点和碱性调控对山梨醇氢解产物的影响。结果表明,Ni、La摩尔比为2:3时,山梨醇转化率达到98.6%,C2~c3多元醇的产率达到43.8%,催化剂经2次反应后对山梨醇的转化率仍高达90%。探究了催化剂从酸性到碱性调变过程中,山梨醇氢解的产物分布,并提出了反应路径

    Material and Energy Conversion of Integrated 100,t/a-Scale Bio-Jet Fuel-Range Hydrocarbon Production System via Aqueous Conversion of Biomass

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    以农业废弃物生物质为原料,利用水相转化技术,进行了百吨/年规模生物航油类烃(C8~C15)合成试运行.过程中采用两步酸解法分别将玉米秸秆中半纤维素和纤维素转化为糠醛和乙酰丙酸,作为生物质基平台化合物.在碱性条件下糠醛与乙酰丙酸经Aldol缩合反应实现碳链增长,生成的长链含氧中间体经过低温预加氢、高温加氢脱氧及精制,生成C8~C15范围内液态烃,可作为生物航油组分.以试运行实验结果为基础,进行了过程的物质与能量转化分析.结果表明,该路线获得液态烃类的基本性质满足合成航油ASTM-7566标准要求,并充分利用了原料中纤维素和半纤维素组分,是一条基于生物质的长链液态烃合成路线,1t航油约需10~12t干基玉米秸秆

    秸秆气化技术

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    Basic Research on Liquid Alkanes From Sugar Derivatives by Aqueous Phase Catalysis

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    Aiming to the third key scientific issue "transformation route and mechanism for advanced liquid fuel production from decomposed products by aqueous phase catalysis" of the project, we used sugar derivatives as the feedstock to synthesize liquid C5/ C6 a

    Advanced Liquid Fuel Production by Herbage Energy Plant Breeding and Catalytic Transformation

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    With aiming to the three key scientific issues, this project conducted the production advanced liquid fuels from biomass, and the development is listed as follows: (1) So as to the first key scientific issue, this project conducted the investigation on t

    生物质转化为高品位烃类燃料研究进展

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    The research progresses in conversion of all-components of biomass to high-valued hydrocarbons (gasoline and jet fuel) were summarized. In the upgrading of bio-oil, the research progress for olefins and aromatics production via catalytic cracking of bio-
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