Department of Agricultural and Biological Engineering, University of Illinois at Urbana-Champaign, 374 Agricultural Engineering Sciences Building, MC-644, 1304 W. Pennsylvania Avenue, Urbana, IL 61801, USA.
Bioresour Technol. 2011 Oct;102(19):9013-9. doi: 10.1016/j.biortech.2011.06.013. Epub 2011 Jun 16.
An engineering-economic model was developed to compare the profitability of the wet fractionation process, a generic dry fractionation process, and the conventional dry grind process. Under market conditions as of January 2011, only fractionation processes generated a positive cash flow. Reduced unit manufacturing costs and increased ethanol production capacity were two major contributions. Corn and ethanol price sensitivity analysis showed that the wet fractionation process always outperformed a generic dry fractionation process at any scenario considered in this research. A generic dry fractionation process would provide better economic performance than the conventional dry grind process if corn price was low and ethanol price was high. All three processes would perform more resiliently if the DDGS price was determined by its composition.
建立了一个工程经济模型来比较湿法分馏工艺、通用干法分馏工艺和传统干法粉碎工艺的盈利能力。在截至 2011 年 1 月的市场条件下，只有分馏工艺产生了正的现金流。降低单位制造成本和提高乙醇产能是两个主要贡献因素。玉米和乙醇价格敏感性分析表明，在本研究考虑的任何情况下，湿法分馏工艺的表现总是优于通用干法分馏工艺。如果玉米价格低而乙醇价格高，通用干法分馏工艺将比传统干法粉碎工艺提供更好的经济性能。如果 DDGS 的价格由其成分决定，那么所有三个工艺的表现将更加稳健。
