化学环制氢工艺现有流程模拟平台无法对其进行有效仿真，限制了反应器尺寸设计及工艺优化过程。基于轴向扩散模型建立了双流化床反应器化学环制氢工艺，优化了反应器的结构及操作参数，为化学环制氢工艺提供了理论指导；所建立的流化床反应器轴向扩散模型可充分模拟工业尺度反应器中天然气与金属氧化物的重整反应过程；优化结果表明，利用商业化模拟平台建立的化学环制氢工艺流程可高效产出氢气，氢气/甲烷比例达到232%，平均制氢成本为1.1万元/t。

Current process simulation platform is not able to simulate effectively the chemical looping process for hydrogen production,which restricts seriously the optimization to the design of reactor size and process.Based on axial diffusion model,a dual fluidized bed reactor chemical looping hydrogen production process is established,and the reactor structure and operating parameters are optimized,which provides theoretical guidance for the chemical looping hydrogen production process.The established axial diffusion model for a fluidized bed reactor can simulate the reforming process between natural gas and metal oxides in an industrial scale reactor.The optimization results show that the chemical looping hydrogen production process can produce hydrogen at a high efficiency,with a hydrogen/methane production ratio reaching 232% and an average production cost of around RMB 11 000 per ton of hydrogen.

李兵(1994-),男,硕士,助理工程师,研究方向为全厂流程优化,libing.fshy@sinopec.com