生物柴油超临界甲醇法生产工艺全流程模拟与经济分析

基于小试结果放大，应用SuperPro Designer?仿真软件，设计模拟超临界甲醇法年产5万t生物柴油的工艺流程，并进行了经济成本核算. 模拟结果表明，主要过程数据符合实验结果，工艺设计合理；经济分析显示，高温高压设备占设备成本较大比例，原料成本占生产成本70%以上，项目总投资约7272万元，税后净利润约2704万元/a. 该工艺具有较好的可行性.

Process Simulation and Economic Analysis on Supercritical Methanol Production Technology of Biodiesel

Based on the scale-up of laboratory experiment, the Superpro Designer? emluator was applied to simulate the whole process of supercritical methanol production technology for 50000 t/a biodiesel production, coupled with costing and economic evaluation on the flowsheet. Simulation results indicate that the process design is reasonable with main process data complying with experimental results. The economic analysis shows that high temperature and high pressure equipment shares larger proportion of equipment purchase cost, and raw materials cost is more than 70% of operating cost, this technology has good feasibility as the after-tax profit is about 27.04 million yuan per year with the project total investment of approximately 72.72 million yuan.