摘要
计算了丙烷脱氢过程各主、副反应的热力学平衡常数和平衡转化率,分析了平衡转化率、烧氢率与反应热效应的关系。表明氧化烧氢具有提高平衡转化率和能量合理利用的优点;丙烷脱氢平衡转化率随烧氢率的增加而增大;当反应温度为923K时要保证热量耦合,烧氢率应大于48.6%;丙烷脱氢氧化工艺原理在于用氧化再热取代传统中的过热蒸汽再热。
The equilibrium constant and conversion of propane dehydrogenation oxidation are calculated. Relation of dehydrogenation equilibrium conversion, hydrogen-burning rate and reaction heat is analyzed. It is found that the technique of dehydrogenation oxidation is good for increasing equilibrium conversion of propane. Propane dehydrogenation equilibrium conversion is as increase as hydrogen-burning rate. The hydrogen burning rate should be greater than 48.60% to ensure energy coupling when reaction temperature is 923 K. The technology theory of propane dehydrogenation oxidation is that oxidation reheat is instead of the traditional superheated steam reheat.
出处
《化学工业与工程技术》
CAS
2011年第6期18-21,共4页
Journal of Chemical Industry & Engineering
关键词
丙烷
丙烯
脱氢氧化
平衡常数
转化率
反应热
热力学
Propane
Propylene
Dehydrogenation oxidation
Equilibrium constant
Conversion
Reaction heat
Thermodynamics
