化学环制氢三流化床反应器系统工艺模拟研究  

Process simulation of three-fluid bed reactor system for chemical-looping hydrogen generation

作　　者：李兵 王晓霖 陈博 Li Bing;Wang Xiaolin;Chen Bo(SINOPEC Dalian Research Institute of Petroleum and Petrochemicals,Dalian,Liaoning 116045)

机构地区：[1]中国石油化工股份有限公司大连石油化工研究院,辽宁省大连市116045

出　　处：《炼油技术与工程》2022年第1期49-53,共5页Petroleum Refinery Engineering

摘　　要：化学环制氢技术能够从化石燃料中高效制取氢气并分离出二氧化碳,由于商用工艺模拟软件缺少适用于化学环制氢的反应器模型,制约了该技术的工艺模拟及优化。建立了一种基于轴向扩散方程的化学环制氢三流化床反应器模型,将反应器模型嵌入商用工艺模拟软件中实现工艺全流程模拟及优化。分析了三流化床反应器的操作条件,结果表明:蒸汽反应器操作温度在850℃、蒸汽输入流量与天然气输入流量比值为2.6条件下能够高效制取氢气,氢气/甲烷比率达到263.86%;蒸汽燃料反应器操作温度在800℃,三氧化二铁流通量与天然气输入流量比值为3.82条件下能够高效分离出二氧化碳,二氧化碳捕获率达到99.21%。The chemical-looping hydrogen generation technology can efficiently produce hydrogen from fossil fuels and separate carbon dioxide.Due to the lack of reactor model suitable for chemical-looping hydrogen generation in commercial process simulation software,which restricts the process simulation and industrial application.A three-fluid bed reactor model for hydrogen generation by chemical-looping process based on axial diffusion equation is established,and the reactor model is embedded in the commercial process simulation software to realize the whole process simulation and optimization.The operation conditions of the three-fluid bed reactor are analyzed.The results show that the steam reactor can produce hydrogen efficiently under the operation temperature of 850℃and the ratio of steam input flux to natural gas input flux of 2.6,the ratio of hydrogen to methane is 263.86%.Under the operating temperature of 800℃and the ratio of Fe_(2)O_(3) flux to natural gas input flux of 3.82,the CO_(2) could be separated efficiently and the CO_(2) capture rate can reach 99.21%.

关 键 词：化学环制氢 流化床 反应器 工艺模拟 反应机理 传质机理 

分 类 号：TQ116.2[化学工程—无机化工]