U.S.-Egypt Cooperative Research: Conversion of Agricultural Residues Into Ethanol and Microcrystalline Cellulose

美埃合作研究：将农业残留物转化为乙醇和微晶纤维素

• 批准号: 0420577
• 负责人: Foster Agblevor
• 金额: --
• 依托单位: Virginia Polytechnic Institute and State University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2004
• 资助国家: 美国
• 起止时间: 2004-09-01 至 2007-02-28
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0420577&HistoricalAwards=false
• 关键词: U.S.; Egypt; Cooperative; Research; Conversion

0420577AgblevorDescription: This award is to support a cooperative research between Dr. Foster Agblevor, Department of Biological Systems Engineering, Virginia Polytechnic Institute and State University, Blacksburg, Virginia and Dr. Maha Ibrahim, Cellulose and Paper Department, National Research Center, Cairo, Egypt. The PIs will study the processing of agro-industrial wastes such as cotton gin waste, rice straw, banana stems, and others to meet environmental protection agency standards. This processing will simultaneously solve a waste disposal problem and generate high-value product stream for the industry. The scientific significance of this project is the fact that it will demonstrate environmentally friendly methods of converting agricultural wastes into high-value products. Further, it will address the problem of microbial toxicity and inhibition of the pretreated biomass to microorganisms and cellulose enzymes. Developing an in situ detoxification method for biomass pretreatment will solve a major research problem in biomass conversion technology and could rapidly accelerate the conversion of biomass feedstocks to various products using fermentation technology. The research objectives are: 1. To investigate the in situ detoxification of biomass hydrolysates. 2. To develop steam explosion method to convert cotton gin waste and other agro-industrial residues to ethanol. 3. To investigate steam explosion method to convert agro-industrial residues to microcrystalline cellulose. The PIs plan to characterize representative biomass feedstocks from Egypt and USA (cotton gin waste) for summative composition and investigate steam explosion treatment of agricultural wastes using various steam explosion severity parameters. They will investigate the in situ detoxification of the steam-exploded biomass using a combination of recycled paper sludge and cotton gin waste as well as impregnated precipitated calcium carbonate. In situ-detoxified steam exploded material will be used for ethanol production after enzymatic hydrolysis using cellulose enzyme. The microcrystalline cellulose production process does not need detoxification. The major research problem addressed is to develop a suitable severity parameter to produced desired degree of polymerization for the cellulose. The Broader Impacts of the Project: Combustion and incineration, the major disposal methods of agricultural by-products, have particulate emission problems, which require retrofitting of the processing facilities to meet new air quality standards. For small companies, this method of disposal is cost-prohibitive and therefore alternative disposal methods are needed. The research results are likely to be commercialized in both the USA and Egypt. The project will also accord the Egyptian scientists the opportunity to use some of the advanced biomass processing facilities in the USA. The target products from the agro-industrial waste, ethanol and microcrystalline cellulose are very important commercial products, which have wide applications in chemical, pharmaceutical, and food industries. This project is being supported under the US-Egypt Joint Fund Program, which provides grants to scientists and engineers in both countries to carry out these cooperative activities.

0420577AgbleVordescription：该奖项旨在支持弗吉尼亚理工学院生物系统工程系的Foster Agblevor博士，弗吉尼亚州布莱克斯堡，弗吉尼亚州布莱克斯堡的州立大学生物系统工程系与埃及国家研究中心国家研究中心的纤维素和纸张部的Maha Ibrahim博士。 PIS将研究农业工业废物的加工，例如棉杜松子酒废物，稻草，香蕉茎和其他人，以满足环境保护局标准。 这种处理将同时解决废物处理问题，并为该行业生成高价值产品流。 该项目的科学意义在于，它将展示将农业废物转化为高价值产品的环保方法。 此外，它将解决微生物毒性的问题，并抑制对微生物和纤维素酶的预处理生物量。 开发一种用于生物质预处理的原位排毒方法将解决生物量转化技术中的重大研究问题，并可以快速加速使用发酵技术将生物质原料转化为各种产品。 研究目标是：1。研究生物量水解物的原位排毒。 2。开发蒸汽爆炸方法将棉花杜松子酒废料和其他农业工业残基转化为乙醇。 3。研究蒸汽爆炸方法将农业工业残基转换为微晶纤维素。 PIS计划使用各种蒸汽爆炸严重性参数来表征来自埃及和美国（棉花杜松子酒废物）的代表性生物质原料，并研究农业废物的蒸汽爆炸处理。他们将使用再生纸污泥和棉花糖废料以及浸渍沉淀的碳酸钙的结合，研究蒸汽爆炸的生物量的原位排毒。使用纤维素酶，原位氧化的蒸汽爆炸材料将用于酶水解后的乙醇产生。 微晶纤维素生产过程不需要排毒。 解决的主要研究问题是为纤维素的聚合产生的聚合程度开发合适的严重性参数。 该项目的更广泛影响：燃烧和焚化是农业副产品的主要处理方法，存在颗粒物排放问题，需要对加工设施进行改造以满足新的空气质量标准。 对于小公司而言，这种处置方法具有成本良好，因此需要替代性处理方法。 研究结果可能在美国和埃及都被商业化。 该项目还将为埃及科学家提供使用美国一些先进的生物质加工设施的机会。 来自农业工业废物，乙醇和微晶纤维素的目标产品是非常重要的商业产品，它们在化学，药品和食品行业中都有广泛的应用。 该项目得到了美国埃及联合基金计划的支持，该计划为两国的科学家和工程师提供了这些合作活动的赠款。