...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Chemical Engineering & Technology: Industrial Chemistry -Plant Equipment -Process Engineering -Biotechnology >Thermodynamic equilibrium calculations for the reforming of coke oven gas with gasification gas
【24h】

Thermodynamic equilibrium calculations for the reforming of coke oven gas with gasification gas

机译：用气化气重整焦炉气的热力学平衡计算

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Thermodynamic analyses of the reforming of coke oven gas with gasification gas for syngas were investigated as a function of coke oven gas-to-gasification gas ratio (1-3), oxygen-to-methane ratio (0-1.56), pressure (25-35 bar) and temperature (700-1100 degrees C). Thermodynamic equilibrium results indicate that the operating temperature should be approximately 1100 degrees C and the oxygen-to-methane ratio should be approximately 0.39, where about 80% CH4 and CO2 can be converted at 30 bar. Increasing the operating pressure shifts the equilibrium toward the reactants (CH4 and CO2); increasing the pressure from 25 to 35 bar decreases the conversion of CO2 from 73.7 % to 67.8 %. The conversion ratio of CO2 is less than that in the absence of O-2. For a constant feed gas composition (7 % O-2, 31 % gasification gas, and 62 % coke oven gas), a H-2/CO ratio of about 2 occurs at temperatures of 950 degrees C and above. Pressure effects on the H-2/ CO ratio are negligible for temperatures greater than 750 degrees C. The steam produced has an effect on the hydrogen selectivity, but its mole fraction decreases with temperature; trace amounts of other secondary products are observed.
机译：研究了焦炉气与气化气转化为合成气的热力学分析，其与焦炉气气比（1-3），氧甲烷比（0-1.56），压力（25）的函数关系-35 bar）和温度（700-1100摄氏度）。热力学平衡结果表明，操作温度应为约1100摄氏度，氧与甲烷之比应为约0.39，其中约80％的CH4和CO2可在30 bar下转化。增加工作压力会使平衡向反应物（CH4和CO2）移动;将压力从25 bar增加到35 bar，会使CO2的转化率从73.7％降低到67.8％。 CO 2的转化率小于没有O-2时的转化率。对于恒定的进料气组成（7％的O-2、31％的气化气和62％的焦炉气），在950摄氏度及以上的温度下，H-2 / CO的比率约为2。在高于750摄氏度的温度下，对H-2 / CO比的压力影响可忽略不计。产生的蒸汽对氢的选择性有影响，但其摩尔分数随温度降低;观察到痕量的其他二级产品。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号