Process development for conversion of low-value biodiesel glycerol into renewable value-added propylene glycol Phase 1

将低值生物柴油甘油转化为可再生增值丙二醇的工艺开发一期

• 批准号: 566698-2021
• 负责人: Dalai, Ajay
• 金额: $ 9.11万
• 依托单位: University of Saskatchewan
• 依托单位国家: 加拿大
• 项目类别: Idea to Innovation
• 财政年份: 2021
• 资助国家: 加拿大
• 起止时间: 2021-01-01 至 2022-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=728643
• 关键词: Process; development; conversion; low; value

The rising CO2 levels and environmental concerns have promoted increased demands for biodiesel as a transportation fuel. It is typically produced from vegetable oils by transesterification. For every 100 liters of biodiesel produced, around 10 liters of glycerol is generated as a byproduct. Glycerol from biodiesel plants typically contains significant levels of impurities such as water, methanol, fatty acids, and soap. The presence of these impurities prevents its use as a solvent in the food, pharmaceutical, and cosmetics industries. An effective route for the valorization of this crude glycerol is highly desirable to improve the economic sustainability of biodiesel production. The production of propylene glycol from glycerol of biodiesel process emerges as a high-margin valorization route since propylene glycol market demand is 2.7 million tons per year globally as a solvent, emulsifier, stabilizer, and freezing point reducer. Professor Dalai and his team at the University of Saskatchewan have developed a catalytic process to produce bio-propylene glycol from crude glycerol using a proprietary catalyst. As a strategy to commercialize this technology, the lab-scale batch processwill be converted into a continuous process since the latter type of operation has the potentials to increase the process efficiency while reducing environmental footprints and operating costs. Besides, this study focuses on developing the UofS propylene glycol technology as per industrial needs and then validating the reproducibilityof catalyst synthesis, and the production of propylene glycol from crude glycerol in a small-scale pilot reactor. The experimental results of pilot runs will be used for life cycle analysis, process simulation and to find out theeconomical feasibility of the UofS technology through techno-economic analysis. The outcomes of the project will enhance the confidence of industrial partners on the UofS propylene glycol technology for licensing and further commercialization.

不断上升的二氧化碳水平和环境问题促进了对生物柴油作为运输燃料的需求增加。它通常由植物油通过酯交换反应生产。每生产 100 升生物柴油，就会产生约 10 升甘油作为副产品。 来自生物柴油厂的甘油通常含有大量杂质，例如水、甲醇、脂肪酸和肥皂。这些杂质的存在阻碍了其在食品、制药和化妆品行业中作为溶剂的使用。非常需要一种有效的粗甘油增值途径，以提高生物柴油生产的经济可持续性。由于丙二醇作为溶剂、乳化剂、稳定剂和冰点降低剂的全球市场需求量为每年 270 万吨，因此从生物柴油工艺中的甘油生产丙二醇已成为一种高利润的增值途径。萨斯喀彻温大学的达莱教授和他的团队开发了一种催化工艺，使用专有催化剂从粗甘油生产生物丙二醇。作为该技术商业化的策略，实验室规模的批量过程将转变为连续过程，因为后一种操作有可能提高过程效率，同时减少环境足迹和运营成本。此外，本研究的重点是根据工业需求开发 UofS 丙二醇技术，然后验证催化剂合成的再现性，以及在小型中试反应器中从粗甘油生产丙二醇。试点运行的实验结果将用于生命周期分析、过程模拟，并通过技术经济分析找出南卡罗来纳大学技术的经济可行性。该项目的成果将增强工业合作伙伴对南卡罗来纳大学丙二醇技术获得许可和进一步商业化的信心。