SBIR Phase II: Novel Separation Technology for Cellulosic Sugar Biorefineries

SBIR 第二阶段：纤维素糖生物精炼厂的新型分离技术

• 批准号: 1456094
• 负责人: Rodrigo Teixeira
• 金额: $ 75万
• 依托单位: Hyrax Energy, Inc.
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2015
• 资助国家: 美国
• 起止时间: 2015-03-01 至 2017-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1456094&HistoricalAwards=false
• 关键词: SBIR; Phase; II; Novel; Separation

The broader impact/commercial potential of this Small Business Innovation Research Phase II project will be the development of an alternative, renewable route to fuels and chemicals that is based on biomass that does not compete with the food supply. The process will use underutilized feedstocks such as corn stover and forestry residue to produce fermentable sugars, which can be converted into various raw materials and finished products. The project will add to the scientific understanding of ionic liquid bioprocessing and has the potential to significantly reduce greenhouse gas emissions and stimulate rural job creation.The technical objective of this Phase II research project is to develop an integrated process for converting lignocellulosic biomass into fermentable sugars. The process uses ionic liquids that dissolve biomass and afford monomeric sugars at high yields via a reaction that is both simple and fast. What is lacking is an affordable method for separating sugars while recycling the ionic liquid. In Phase I the project demonstrated an efficient strategy for sugar recovery. By the first half of Phase II the goal is to integrate sugar recovery into the process front end. Unit operations taking raw biomass to clean sugars and lignin will be performed in batch open loop in order to close mass balances and set a baseline for further process development. Then, the loop will be closed with the addition of ionic liquid cleaning and drying. By the end of this project, the objective is to demonstrate a stable and high-yielding process, including experimentally validated techno-economic projections showing unprecedentedly low capital and operating costs.

这个小企业创新研究第二阶段项目的更广泛的影响/商业潜力将是开发一种替代的、可再生的燃料和化学品路线，这种路线基于不与粮食供应竞争的生物质。该工艺将使用未充分利用的原料，如玉米秸秆和林业残留物来生产可发酵的糖，这些糖可以转化为各种原材料和成品。该项目将增加对离子液体生物加工的科学认识，并有可能显著减少温室气体排放，刺激农村就业机会的创造。该研究项目第二阶段的技术目标是开发一种将木质纤维素生物质转化为可发酵糖的综合工艺。该方法使用离子液体溶解生物质，并通过简单快速的反应以高产率提供单糖。所缺乏的是一种在回收离子液体的同时分离糖的负担得起的方法。在第一阶段，该项目展示了一种有效的糖回收战略。到第二阶段的上半年，目标是将糖回收整合到工艺前端。将在分批开环中进行利用原始生物质清洁糖和木质素的单元操作，以关闭质量平衡并为进一步的工艺开发设定基线。然后，通过添加离子液体清洁和干燥来闭合回路。在该项目结束时，目标是展示一种稳定和高产的工艺，包括经过实验验证的技术经济预测，表明资本和运营成本前所未有地低。