Process development for direct ethyl levulinate production from biomass - 2****

利用生物质直接生产乙酰丙酸乙酯的工艺开发 - 2****

• 批准号: 537569-2018
• 负责人: FauteuxLefebvre, Clémence
• 金额: $ 1.82万
• 依托单位: University of Ottawa
• 依托单位国家: 加拿大
• 项目类别: Engage Grants Program
• 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=650524
• 关键词: Process; development; direct; ethyl; levulinate

Increasing concerns about global warming related to greenhouse emission, and depletion of fossil fuel resources, bring biomass as a promising environmentally friendly and sustainable alternative to supply chemicals and fuels. One attractive option is the conversion of biomass obtained from recycling activities to Ethyl Levulinate (EL). This substance has prevalent applications in the fragrance and the flavour industries and is used as an additive for diesel and biodiesel. Direct biomass conversion to ethyl levulinate was successfully demonstrated in a small batch reactor through a one-step acid-catalyzed biomass process. The objective of this project is to develop an efficient and robust process design for this application in order to facilitate its implementation and operation. Kinetic parameters and thermodynamics of the reaction will be used to optimize the conversion of biomass and the selectivity to EL through a suitable reactor and separation process design for this multiphase system. The process has to be designed to: separate and recover the solid by-product; separate the organic and aqueous phases; recycle the solvent from the organic phase; recycle the aqueous phase containing HCl to the reactor; separate the EL from the organic phase residue to obtain the final EL stream. Our approach is to design a novel reactor with integrated solid phase separation. The results will be used to the next step toward conducting a pilot plant demonstration.

随着人们对温室气体排放和化石燃料资源枯竭的日益关注，生物质成为一种有前途的环境友好和可持续的化学品和燃料替代品。一个有吸引力的选择是将从回收活动中获得的生物质转化为乙酰丙酸乙酯（EL）。这种物质在香料和调味品工业中有广泛的应用，并用作柴油和生物柴油的添加剂。在小批量反应器中，通过一步酸催化生物质过程，成功地证明了生物质直接转化为乙酰丙酸乙酯。该项目的目标是为这一应用开发一个高效和稳健的流程设计，以促进其实施和运行。动力学参数和反应的热力学将用于优化生物质的转化率和EL的选择性，通过一个合适的反应器和分离工艺设计这个多相系统。该方法必须设计为：分离和回收固体副产物;分离有机相和水相;从有机相中再循环溶剂;将含有HCl的水相再循环至反应器;从有机相残余物中分离EL以获得最终的EL流。我们的方法是设计一种新型的反应器与集成固相分离。结果将用于下一步进行中试工厂示范。