煤与甲烷联合转化过程模拟与分析  

Modeling,Simulation and Analysis for Coal Gasification Coupled with Methane

作　　者：李建伟[1] 雷姣姣 辛欣 白峰[1] Li Jianwei;Lei Jiaojiao;Xin Xin;Bai Feng(College of Chemistry and Chemical Engineering, Xi＇an University of Science and Technology, Xi＇an 710054, China)

机构地区：[1]西安科技大学化学与化工学院

出　　处：《湖南科技大学学报（自然科学版）》2018年第2期84-88,共5页Journal of Hunan University of Science And Technology：Natural Science Edition

基　　金：国土资源部煤炭资源勘查与综合利用重点实验室科研课题资助项目(KF2013-1)

摘　　要：为了减少CO2排放,优化化工过程,节约资源,提高煤种碳元素的利用率,本文以Aspen Plus软件为平台,对甲烷与煤联合转化过程进行了流程模拟与系统分析.结果表明：合成气中的H2/CO由原来的0.71提高到1.08,碳元素的利用率由原来的73%提高到87.2%;变换单元的变换率由64%下降到48%;降低了变换单元的负荷;生产每吨的甲醇,这个新的联合转化过程比水煤浆气化制甲醇CO2排放量减少68.3%.In order to reduce CO2emissions, optimize of chemical process, save resources, and improve the carbon utilization of coal, the Aspen Plus software was used as a platform for the coal gasification coupling with methane process simulation modeling and systems analysis. The results show that the ratio of H2/CO in syngas from the 0.71 increase to 1.08, while at the same time, the utilization of carbon from the original 73% improve to 87.2% ; conversion rate of the water gas shift unit from 64% decrease to 48%, and also reduce the energy. The analysis shows that when produced per tone of methanol, CO2 emission is reduced by around 68.3 % in comparison to the coal water slurry gasification synthesis of methanol.

关 键 词：流程模拟 合成气 H2/CO 联合转化 CO2排放 

分 类 号：TQ546[化学工程—煤化学工程]