Department of Biosystems and Agricultural Engineering, Oklahoma State University, Stillwater, OK, USA.
Department of Biosystems and Agricultural Engineering, Oklahoma State University, Stillwater, OK, USA.
Bioresour Technol. 2017 Dec;245(Pt A):925-932. doi: 10.1016/j.biortech.2017.08.193. Epub 2017 Sep 1.
The hybrid gasification-syngas fermentation platform can produce more bioethanol utilizing all biomass components compared to the biochemical conversion technology. Syngas fermentation operates at mild temperatures and pressures and avoids using expensive pretreatment processes and enzymes. This study presents a new process simulation model developed with Aspen Plus® of a biorefinery based on a hybrid conversion technology for the production of anhydrous ethanol using 1200tons per day (wb) of switchgrass. The simulation model consists of three modules: gasification, fermentation, and product recovery. The results revealed a potential production of about 36.5million gallons of anhydrous ethanol per year. Sensitivity analyses were also performed to investigate the effects of gasification and fermentation parameters that are keys for the development of an efficient process in terms of energy conservation and ethanol production.
与生化转化技术相比，混合气化-合成气发酵平台可以利用所有生物质成分生产更多的生物乙醇。合成气发酵在温和的温度和压力下运行，避免使用昂贵的预处理工艺和酶。本研究提出了一种新的过程模拟模型，该模型使用 Aspen Plus®开发，基于混合转化技术，利用 1200 吨/天（wb）的柳枝稷生产无水乙醇的生物精炼厂。模拟模型由三个模块组成：气化、发酵和产品回收。结果表明，每年可生产约 3650 万加仑无水乙醇。还进行了敏感性分析，以研究气化和发酵参数的影响，这些参数是节能和提高乙醇生产效率的关键。
