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Effect of the operating parameters on the simulation of acetylene hydrogenation reactor with catalyst deactivation
Applied Catalysis A: General ( IF 5.5 ) Pub Date : 2018-07-02 , DOI: 10.1016/j.apcata.2018.06.038
Mohammad Samavati , Habib Ale Ebrahim , Yousef Dorj

In the present study, the pseudo-homogeneous and heterogeneous models of fixed bed reactor using Pd − Ag/Al2O3 catalyst for acetylene hydrogenation were simulated. The high compatibility of both models with experimental data was obtained. The effect of operating conditions such as inlet temperature (302, 310 and 318 K), hydrogen/acetylene ratio (1, 1.4, 2 and 2.5), total pressure (15, 20 and 25 bar) and gas flow (270, 300 and 365 m3/h) was calculated on the conversion of acetylene and selectivity of ethylene. The obtained results revealed that the maximum conversion of acetylene was accomplished in an inlet temperature of 318 K, the hydrogen/acetylene ratio of 2.5, total pressure of 25 bar and the gas flow of 270 m3/h. The catalyst deactivation behavior was simulated as functions of time and temperature. To compensate the catalyst deactivation after 6 and 12 months, the effect of temperature enhancement on the acetylene conversion was investigated.



中文翻译:

操作参数对催化剂失活乙炔加氢反应器模拟的影响

在本研究中,模拟了使用Pd-Ag / Al 2 O 3催化剂进行乙炔加氢的固定床反应器的拟均相和非均相模型。获得了两个模型与实验数据的高度兼容性。操作条件的影响,例如入口温度(302、310和318 K),氢/乙炔比(1、1.4、2和2.5),总压力(15、20和25 bar)以及气流(270、300和350 bar)根据乙炔的转化率和乙烯的选择性计算出365 m 3 / h)。所得结果表明,乙炔的最大转化率是在进口温度为318 K,氢/乙炔比为2.5,总压力为25 bar和气流为270 m 3的条件下完成的。/H。催化剂失活行为被模拟为时间和温度的函数。为了补偿6个月和12个月后催化剂的失活,研究了温度升高对乙炔转化率的影响。

更新日期:2018-07-02
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