Biomass Bioconversion to Calcium Acetate Deicing Salt

生物质生物转化为醋酸钙除冰盐

• 批准号: 8861087
• 负责人: Debra Trantolo
• 金额: $ 5万
• 依托单位: Cambridge Scientific Inc
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1989
• 资助国家: 美国
• 起止时间: 1989-01-01 至 1989-09-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8861087&HistoricalAwards=false
• 关键词: Biomass; Bioconversion; Calcium; Acetate; Deicing

This work is to commercialize a competitive system using woody biomass as feed-stock for conversion to calcium acetate, an alternative road salt. This new organic road salt will prevent corrosion of bridge decks, underground cables, and rusting of cars and trucks. Calcium acetate from woody biomass will reduce costs, compared to petroleum and natural gas for making this material. The process is based on a "packed bed" fermenter to produce acetic acid from woody biomass, as well as liquid ion exchange to recover acetic acid from the fermenter broth prior to the final production step which occurs with passing the acetic acid over limestone. In Phase I: a) percent bioconversion and kinetics of woody biomass to acetic acid will be confirmed in small batch fermenters; b) partition coefficients for acetic acid recovery will be documented; and c) rates of conversion to calcium acetate will be determined. This investigation will show that woody biomass can be readily bioconverted to CMA. No organic waste, such as whey, or a primary crop such as corn, exists in such large quantities as does woody biomass, in order to produce the vast amounts of road salt used each year. Commercialization will be in the areas of the "frostbelt" states where economic vigor will be welcomed.

这项工作是将一个竞争性系统商业化，该系统使用木质生物质作为转化为醋酸钙（一种替代道路盐）的原料。这种新型有机道路盐可以防止桥面、地下电缆的腐蚀以及汽车和卡车的生锈。与生产这种材料的石油和天然气相比，从木质生物质中提取醋酸钙将降低成本。该工艺基于“填充床”发酵罐，从木质生物质中生产乙酸，以及在将乙酸通过石灰石进行最终生产步骤之前，通过液体离子交换从发酵罐肉汤中回收乙酸。在第一阶段：a)将在小批量发酵罐中确认木质生物质转化为乙酸的生物转化率和动力学；B)乙酸回收的分配系数应形成文件；c)将测定转化为醋酸钙的速率。这项研究将表明木质生物质可以很容易地生物转化为CMA。没有有机废物，如乳清，或主要作物，如玉米，存在如此大量的木质生物质，以生产大量的道路盐每年使用。商业化将在经济活力受到欢迎的“冻土带”地区进行。