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利用H2S气体在1 500K高温下进行裂解反应,得到H2和硫磺,之后使用MDEA(N-甲基二乙醇胺)水溶液来吸收反应后气体中的H2S,将吸收富液送入吸收液再生塔中进行再生,塔顶气体循环至反应器中,塔底再生吸收液重复利用.利用Aspen Plus流程模拟软件对硫化氢高温裂解制氢气的工艺流程进行设计和模拟,并通过流程优化最终确定了此工艺的最佳操作条件.制得质量分数为85.84％的氢气和99.20％的硫磺.“,”Gaseous Hydrogen sulfide is cracked at 1 500 K to produce hydrogen and sulfur.The remaining hydrogen sulfide in the cracked gas is absorbed by N-methyl diethanolamine (MDEA) aqueous solution.The H2S-riched solution is transferred into the regeneration tower for regeneration,the gas stream at tower top is recycled into the pyrolysis reactor while the regenerated absorbing solution at the bottom of tower can be used repeatedly.Aspen Plus process simulation software is employed to design and simulate the process flow of hydrogen production via high temperature cracking of hydrogen sulfide,and the optimal operating conditions for this process are determined through optimization of the flow process.The mass concentration of prepared hydrogen is 85.8％ and that of prepared sulfur is 99.2％.