Conversion of Cellulosic Biomass into Renewable Gasoline, Aviation Biofuels and Bio-based Chemicals - towards the Development of 5-HMF-Platform Biorefinery

将纤维素生物质转化为可再生汽油、航空生物燃料和生物基化学品 - 致力于开发 5-HMF 平台生物炼制厂

• 批准号: RGPIN-2014-05463
• 负责人: Xu, Chunbao(Charles)
• 金额: $ 2.11万
• 依托单位: University of Western Ontario
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2018
• 资助国家: 加拿大
• 起止时间: 2018-01-01 至 2019-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=669077
• 关键词: Conversion; Cellulosic; Biomass; into; Renewable

Cellulosic biomass is abundant and inexpensive, and is generated at large quantities in the agricultural and forestry sectors as residues (cornstalks, wheat straw, sawdust, bark, etc.). Glucose is the main building block of cellulosic biomass, and it can be readily and inexpensively produced from cellulosic biomass via acid or enzymatic hydrolysis. Glucose can be converted into 5-hydroxymethyl-furfural (5-HMF) via catalytic de-hydration. 5-HMF is considered by the U.S. Department of Energy to be among the "top 10 list of bio-based chemicals" in terms of the market potential as it is a versatile intermediate platform precursor for the syntheses of a wide range of biofuels and bio-based chemicals. Compared with other bio-platform chemicals, such as bio-ethanol and levulinic acid, 5-HMF is particularly promising in terms of carbon utilization efficiency as it retains all six carbon-atoms of glucose. The long-term goal of this research program is to develop novel 5-HMF-platform biorefinery for conversion of cellulosic biomass into renewable fuels and chemicals. As short-term objectives, my research efforts in the next five years will be centered on developing novel continuous processes and heterogeneous catalysts for conversion of glucose into biofuels (renewable gasoline and aviation biofuels) and bio-based chemicals, specifically (1) to develop highly efficient continuous processes and heterogeneous catalysts to convert glucose to 5-HMF; (2) to produce renewable gasoline and aviation biofuels from 5-HMF in a continuous reactor; (3) to transform 5-HMF into 2,5-dihydroxymethyl furan and 2,5-furandicarboxylic acid and produce biopolymers. **In this project, a novel continuous process using heterogeneous catalysts will be developed and used for cost-effective conversion of glucose to 5-HMF. 5-HMF will be further catalytically converted to 2,5-dimethylfuran (DMF) and 2,5-dimethyltetrahydrofuran (DMTF). DMF and DMTF can be renewable gasoline with a much higher energy content than5-HMF. With the continuous process and heterogeneous catalysts, 5-HMF will also be converted to 2,5-dihydroxymethyl furan and 2,5-furandicarboxylic acid (FDCA) for production of biopolymers such as bio-based polyethylene terephthalate (PET) by replacing terephthalic acid with FDCA. Furthermore, as an aromatic aldehyde compound, 5-HMF will be transformed to a coupled product - C12 furoin via self-benzoin condensation and then to C12 hydrocarbons as a potential aviation biofuel by hydrogenation. The glucose-to-5-HMF processes reported so far in the literature are mostly lab-scale batch systems with homogeneous catalysts. In order to produce 5-HMF more economically on a large scale, developing continuous processes and highly active heterogeneous catalysts (to ease catalyst recycling) is the key. The success of this NSERC DG research program could enhance Canada's economic sustainability in a long term, by creating additional profit streams to the Canadian forest and agricultural sectors and offering renewable chemicals/materials to the Canadian chemical industries. Moreover, this program is expected to train more than 10 highly qualified personnel in a broad area of biorefinery - an area of great significance to Canada's bioeconomy development.

纤维素生物质丰富且廉价，在农业和林业部门以残留物（玉米秆、麦秆、锯末、树皮等）的形式大量产生。葡萄糖是纤维素生物质的主要组成部分，它可以通过酸或酶水解从纤维素生物质中容易且廉价地生产。葡萄糖可以通过催化脱水转化为5-羟甲基糠醛(5-HMF)。 5-HMF 被美国能源部评为市场潜力“十大生物基化学品”之一，因为它是合成各种生物燃料和生物制品的多功能中间平台前体。基化学品。与其他生物平台化学品（例如生物乙醇和乙酰丙酸）相比，5-HMF 在碳利用效率方面特别有前途，因为它保留了葡萄糖的全部六个碳原子。该研究计划的长期目标是开发新型 5-HMF 平台生物精炼厂，将纤维素生物质转化为可再生燃料和化学品。作为短期目标，我未来五年的研究工作将集中于开发新型连续工艺和多相催化剂，用于将葡萄糖转化为生物燃料（可再生汽油和航空生物燃料）和生物基化学品，特别是（1）开发将葡萄糖转化为 5-HMF 的高效连续工艺和多相催化剂； (2) 在连续反应器中用5-HMF生产可再生汽油和航空生物燃料； (3)将5-HMF转化为2,5-二羟甲基呋喃和2,5-呋喃二甲酸并生产生物聚合物。 **在该项目中，将开发一种使用非均相催化剂的新型连续工艺，并将其用于将葡萄糖经济高效地转化为 5-HMF。 5-HMF将进一步催化转化为2,5-二甲基呋喃（DMF）和2,5-二甲基四氢呋喃（DMTF）。 DMF和DMTF可以是可再生汽油，其能量含量比5-HMF高得多。通过连续工艺和非均相催化剂，5-HMF还将转化为2,5-二羟甲基呋喃和2,5-呋喃二甲酸（FDCA），用于替代对苯二甲酸生产生物聚合物，例如生物基聚对苯二甲酸乙二醇酯（PET）与 FDCA 一起。此外，5-HMF作为芳香醛化合物，可通过自身安息香缩合转化为偶联产物C12糠醛，再通过加氢转化为C12碳氢化合物，作为潜在的航空生物燃料。迄今为止，文献报道的葡萄糖制5-HMF工艺大多是采用均相催化剂的实验室规模间歇系统。为了更经济地大规模生产5-HMF，开发连续工艺和高活性多相催化剂（以方便催化剂回收）是关键。 NSERC DG 研究计划的成功可以通过为加拿大森林和农业部门创造额外的利润流以及为加拿大化学工业提供可再生化学品/材料，从长远来看增强加拿大经济的可持续性。此外，该项目预计将在生物炼制广泛领域培养10多名高素质人才，该领域对加拿大生物经济发展具有重要意义。