Biomass Bioconversion to Calcium Acetate Deicing Salt

这项工作是商业化的竞争系统，使用木质生物质作为原料转化为醋酸钙，一种替代道路盐。这种新的有机道路盐将防止桥面、地下电缆的腐蚀，以及汽车和卡车的生锈。与制造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。该工艺的基础是从木质生物质生产醋酸的“填充床”发酵罐，以及液体离子交换，以在最终生产步骤之前从发酵罐发酵液中回收醋酸，这发生在将醋酸传递到石灰石上的过程中。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醋酸的百分比和动力学；b)将记录醋酸回收的分配系数；以及c)将确定转化为醋酸钙的速率。这项研究将表明，木质生物质很容易被生物转化为CMA。不存在像乳清这样的有机废物，或者像玉米这样的初级作物，存在着像木质生物质那样的大量存在，以生产每年使用的大量道路盐。商业化将在经济活力受到欢迎的“霜带”州进行。

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.