天然气制乙炔与燃料电池的集成系统

基于天然气部分氧化法制乙炔的产物中含有约54%的H2,提出了一个天然气制乙炔与燃料电池的集成系统。新系统采用天然气生产乙炔副产合成气,合成气经水气转化提高H2含量,H2经燃料电池高效转化,以及余热锅炉系统回收燃料电池的余热和排气。利用Aspen Plus模拟结果表明:基于584.3 kg.h-1进料的天然气,在POC反应温度1 773 K,吸收压力1.013 MPa,解析压力0.103 MPa的条件下,系统生产乙炔1.9 MW,向外输出电1.7 MW,系统净发电效率为26.8%,火用效率为43.4%。研究表明,新系统提高了乙炔生产的能量转换率。

A novel integration system of acetylene process with fuel cell

This paper presents a novel polygeneration system integrated by acetylene process and fuel cell.The system is composed of an acetylene production by natural gas process,a water gas shift reactor,a fuel cell and a set of waste heat boiler auxiliary system to recover the exhaust heat and gas from fuel cell. Based on 584.3 kg·h-1 of natural gas feedstock,the POC reactor temperature of 1 773 K,the absorber pressure of 1.013 MPa and the degasser pressure of 0.103 MPa,the simulation results show that the new system has achieved the acetylene production 1.9 MW,the net electricity production 1.7 MW,the power generation efficiency 26.8 % and the exergy efficiency 43.4 %,which achieves the improvement of natural gas energy conversion efficiency.