摘要
一、前言工业生产中广泛使用的甲醇合成铜基催化剂具有活性高、选择性好、起始活性温度低等优点。但铜基催化剂抗毒性能差,影响了它的使用寿命。铜基催化剂的主要毒物是原料气中所含的 H_2S。铜基催化剂 H_2S 中毒失活研究,国内未见报道,美国的 Wood 等和 Rdvodic 等作过一些研究。本文通过对国产 C207铜基催化剂硫化氢中毒失活动力学的研究,建立描述活性衰退过程的失活动力学方程。
In this paper,an external recycling gradientless reactor was used to study the intrinsic deactivation kinetics of methanol decomposition by H_2S poisoning on C207 Cu-based catalyst (80-100 mesh)under atomspheric pressure.In this investigation,particular attention was paid to the material balance of H_2S,so that all the system except the catalyst will not absorb H_2S.Eight runs of poisoning experiment have been carried out.By means of Marquardt method of regression, an intrinsic deactivation kinetic equation was obtained. -(da/dt)=5.979×10~3exp(-77343/(R_gT))C_(H_2Sα) The residual error analysis and statistical test show that this model is adequate to fit the experimental data.
出处
《化学反应工程与工艺》
CAS
CSCD
北大核心
1991年第3期298-302,共5页
Chemical Reaction Engineering and Technology
关键词
甲醇
催化剂
去活化
动力学
Deactivation
Kinetics
Poisoning
Catalyst
Methanol.
