文章摘要
硫化氢替代硫磺生产二硫化碳的热力学分析
Thermodynamic analysis of replace sulfurwith H2S to the production CS2
  
DOI:
中文关键词: 热力学  反应温度  Aspen Plus  Gibbs自由能
英文关键词: thermodynamic  reaction temperature  Aspen Plus  the minimization of Gibbs free energy
基金项目:国土资源部煤炭资源勘查与综合利用重点实验室科研课题(KF2013-1)
作者单位
李建伟,姚卫国,王婷婷,王丹,张三莉,陈冲 西安科技大学 化学与化工学院陕西 西安 710054 
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中文摘要:
      为了扩大CS2的生产方法,提出用H2S替代硫磺生产CS2的设想.计算了反应的热力学和最低的反应温度,说明了反应的可行性.基于Gibbs自由能最小原理,利用Aspen Plus分析了CH4流量、H2S流量、反应压力和温度的变化对反应结果的影响.结果表明,在H2S与CH4的摩尔流量比为2∶1时,转化率随着温度的升高而增加,压力的升高而减小.温度为1 000 ℃,压力为101.325 kPa时,CH4的转化率为58.6%.当CH4与H2S的摩尔流量比为5∶1时,H2S的转化率为90%.
英文摘要:
      In order to expand the production methods of CS2, the idea was proposed to replace sulfur with H2S to product CS2. The minimum reaction thermodynamic and reaction temperature was casulated,which illustrates the feasibility of the reaction. Based on Gibbs free energy minimization principle, combined with Aspen Plus, the mole flow of CH4 and H2S, reaction pressure and temperature on the reaction results, were analyzed. The results show that, under the ratio of CH4/H2S is 2∶1, increasing temperature of the reaction,the conversion improve but the pressure is opposite. The conversion is 58.6 % at the condition of 1 000 ℃,101.325 kPa. When the molar ratio of the flow rate of CH4/H2S is 5∶1, the conversion of H2S is 90 %.
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