煤层气制乙炔流程模拟与分析  

Process Simulation and Analysis of Acetylene Production from Coal-Bed Methane

作　　者：彭云飞 张桥[1] PENG Yunfei;ZHANG Qiao(School of Chemical Engineering and Technology,Xi’an Jiaotong University,Xi’an 710049,China)

机构地区：[1]西安交通大学化学工程与技术学院,西安710049

出　　处：《华东理工大学学报（自然科学版）》2024年第4期497-502,共6页Journal of East China University of Science and Technology

基　　金：国家自然科学重点基金(21736008)。

摘　　要：为缓解电石法制乙炔中高污染、高能耗的现状、推广甲烷部分氧化法工艺,同时改善国内煤层气(Coal-Bed Methane,CBM)利用率,本文搭建了一套以煤层气为原料且采用部分氧化法生产乙炔的工艺模型。结合乙醇胺(MEA)脱碳工艺吸收CO_(2),利用Aspen Plus软件完成了煤层气制乙炔的全流程模拟,并进行了技术经济和环境影响分析。结果表明:本工艺年产乙炔3×10^(4) t(纯度大于99%),乙炔成本为12423.73 CNY/t,还可以副产1.86×10^(4) t氢气(纯度99.99%),具备良好的综合经济效益;本工艺每生产1 t乙炔排放3048.66 kg CO_(2),仅为主流电石法碳排放量(6560 kg)的46.5%,碳减排优势突出。In order to alleviate the high pollution and high energy consumption of the calcium carbide method for acetylene production,and to promote the partial oxidation of methane process,while improving the utilization rate of domestic coal-bed methane(CBM),this paper proposes a process for producing acetylene using partial oxidation of CBM as a raw material.This process is combined with the ethanolamine(MEA)CO_(2) absorption process,and the model is built using Aspen Plus software.Full simulation,including sensitivity analysis,economic analysis,and carbon emission analysis of the process is performed.The results show that this process can meet an annual production of 3×10^(4) t of acetylene with a purity greater than 99%,and the cost of acetylene is 12423.73 CNY/t.It can also produce 1.86×10^(4) t/a of hydrogen with a purity of 99.99%,demonstrating good overall economic benefits.The carbon emission analysis shows that this process emits 3048.66 kg of CO_(2) per ton of acetylene produced,which is only 46.5% of 6560 kg produced by the mainstream calcium carbide method.

关 键 词：乙炔 煤层气 部分氧化法 经济分析 碳排放 

分 类 号：TQ021.8[化学工程]