针对产业化规模的木质纤维素生物炼制工艺,在Aspenplus流程模拟平台上建立了全过程流程模拟模型。构建了木质纤维素生物炼制中涉及物质的全组分物性数据库,建立了Aspenplus平台上的严格热力学流程模拟模型;对年加工300000t玉米秸秆原料生产纤维素乙醇的产业化装置进行了严格流程模拟计算,从节能减排角度对纤维素乙醇生产过程中的新鲜水用量、废水减排和蒸汽能耗等工程问题进行了分析,并给出了积极的节能减排解决方案。该模型可以为产业化纤维素乙醇生产技术的过程设计、操作优化以及技术经济评价提供设计和优化工具。
Lignocellulose biorefining has great potentials of feedstock supply and product market in the major agricultural countries. The flowsheet simulation model for the industrial scale biorefining process of cellulosic ethanol production using lignocellulosic feedstocks was established. The physical property database was established based on the materials analysis and parameter estimation methods for the biomass components involved in the lignocellulose processing. The biorefining plant with the processing capacity of 300 000 t corn stover annual for production of fuel ethanol was simulated using the established Aspen plus model and the water and energy consumption of the processes was analyzed. The whole flowsheet balance of the mass and enthalpy data were calculated and used for the design of the processes. The model can be used in the future industrial plants for the process design, operation optimization and economic evaluation.