基于Aspen Plus的“煤拔头”工艺热解过程的模拟  

The pyrolysis process of coal topping simulation using Aspen Plus

作　　者：张彦[1,2] 赵月红[1] 何险峰[1] 

机构地区：[1]中国科学院过程工程研究所,北京100190 [2]中国科学院大学,北京100049

出　　处：《计算机与应用化学》2014年第7期774-778,共5页Computers and Applied Chemistry

基　　金：科技部国际科技合作计划(2011DFA61360);中国科学院战略先导科技专项(XDA07080400);国家自然科学基金资助项目(20703047)

摘　　要：在Aspen Plus对煤热解过程的模拟工作中,多使用经验关联式进行计算或将实验结果直接代入收率反应器,前者有很大的偏差,后者有很大的局限。通过将热解反应器进行分段模拟,不但考虑了热解过程的热效应,而且可以得到煤热解过程中的温度变化情况和热解产物产率,同时可以提高模拟结果的准确性。在本文的研究中,对府谷煤热解过程中操作参数的优化结果表明,将起始物料温度从650℃提高至672℃时,热解反应可以产生更多的焦油产品。Most simulations of coal pyrolysis process based on Aspen Plus are using empirical formulas and experimental data, however, the former has great deviations while the latter has many limitations. In this work, simulation of pyrolysis process is developed by separating the pyrolyzer into several sections （such as 15 sections）, which brings many benefits： endothermic effect is fully considered; the simulation could have a better accuracy; temperature variation curve of the pyrolysis process and yields of pyrolysis products are obtained. As results, according to the simulation, Fugu coal pyrolysis could produce more tar while the initial pyrolysis temperature is increased from 650 ℃ to 672 ℃.

关 键 词：煤拔头 热解过程 ASPEN PLUS 模拟 

分 类 号：TQ015.9[化学工程] TP391.9[自动化与计算机技术—计算机应用技术]