等离子体热解煤制乙炔模拟分析  

Simulation of coal pyrolysis to acetylene in hydrogen plasma reactors

作　　者：赵小楠[1] 杨巨生[1] 

机构地区：[1]太原理工大学电气与动力工程学院,山西太原030024

出　　处：《计算机与应用化学》2015年第8期999-1003,共5页Computers and Applied Chemistry

基　　金：山西省科技攻关项目(20110313026-2)

摘　　要：等离子体热解煤制乙炔为煤制乙炔提供一个更加直接和清洁的方法。根据煤的元素组成和等离子体热解煤的特点,应用Aspen Plus软件,采用Gibbs自由能函数最小法建立了等离子体气化模型和乙炔提浓的工艺流程模型。模拟结果表明该模型的模拟值与文献值吻合较好。利用Aspen Plus灵敏度分析功能研究了煤中水分、不同热解气氛以及用甲烷取代氢气作载气对等离子气化过程的影响。结果表明:煤中水分不利于乙炔形成,含氢气氛优于氮气和氩气作为等离子体热解煤制乙炔的工作气体,而用甲烷作载气对合成气组分影响不明显。Coal pyrolysis in thermal plasma provides a more direct and cleaner route for producing acetylene from coal resources. The model was calculated by the Gibbs minimization free energy method through Aspen Plus based on the elemental composition in coal and the characteristics of coal pyrolysis in are plasma jet. The model contains plasma gasification model and separating and purifying acetylene process model. The results indicate that the simulating values are in good agreement with the experimental data. Through the model analysis tools of Aspen Plus, analysis the effects of different ambient gas, moisture content in coal, the carrier gas of coal particles is changed from hydrogen to methane on plasma gasification process, The simulation results indicate that moisture in coal is unfavorable for the formation of acetylene, the ambient gas containing hydrogen is more suitable than the gases containing nitrogen and argon in the system, the carrier gas methane has a trivial effect on the final gaseous composition.

关 键 词：等离子体热解 ASPEN PLUS Gibbs自由能 模拟 

分 类 号：TQ536.9[化学工程—煤化学工程] TP391.9[自动化与计算机技术—计算机应用技术]