玉米基燃料乙醇工艺节能减排系统集成设计  

Integrated Design of Energy-Saving and Emission Reduction System for Corn-Based Fuel Ethanol Process

作　　者：赵海越 修奥瑞 雷昭[1] 刘祥春 ZHAO Hai-yue;XIU Ao-rui;LEI Zhao;LIU Xiang-chun(Anhui Key Laboratory of Coal Clean Conversion and Comprehensive Utilization,School of Chemistry and Chemical Engineering,Anhui University of Technology,Maanshan 243032,China;Anhui Keda Energy Saving Co.Ltd.,Maanshan 243021,China)

机构地区：[1]安徽省煤洁净转化与综合利用重点实验室,安徽工业大学化学与化工学院,安徽马鞍山243032 [2]安徽科达节能股份有限公司,安徽马鞍山243021

出　　处：《安徽化工》2022年第2期85-88,共4页Anhui Chemical Industry

基　　金：安徽省大学生创新创业训练计划(S201910360204);安徽省自然科学基金(2008085QB87)。

摘　　要：针对玉米基燃料乙醇工艺进行节能减排系统集成设计,具体实施步骤:综合利用Aspen Plus及Excel软件中的Aspen Simulation Workbook模块,研究原料水的进料量、精馏塔的回流比等对换热器能耗的影响规律。基于能耗最优及不影响乙醇产品产量,将精馏塔的回流比由原工艺的2.3优化为1.7,原料水由原工艺的40 915 kg/h优化为8 000 kg/h。新工艺比原工艺节约能量33 082 k J/s,节约水资源32 915 kg/h。原工艺CO_(2)流股中CO_(2)的排放量为34 022 kg/h,本设计在CO_(2)排放管道处加一个乙醇胺吸收塔,可吸收99.58%的CO_(2),具有明显的减排效果。The integrated design of energy-saving and emission reduction system for corn-based fuel ethanol process was carried out. The specific implementation steps were as follows: comprehensive use of Aspen Plus and Aspen Simulation Workbook module in Excel software to study the feed amount of raw water and the effects of reflux ratio of distillation tower on energy consumption of heat exchanger. Based on the optimum energy consumption and minimum effect on the output of ethanol production, the reflux ratio of distillation column was optimized from 2.3 to1.7 and the raw water was optimized from40 915 kg/h to 8 000 kg/h. Compared with the initial process, the new process saved the energy of 33 082 kJ/s and water content of 32 915 kg/h. Moreover, the content of CO_(2)emission in the initial process was 34 022 kg/h. To decrease the content of CO_(2)emission, an ethanolamine absorption tower was added in CO_(2)emission pipeline, which can absorb 99.58% of CO_(2).

关 键 词：燃料乙醇 节能减排 Aspen Plus Aspen Simulation Workbook 

分 类 号：TQ223.122[化学工程—有机化工]