| 乙烯氢甲酰化反应动力学的研究——Ⅰ.以丙醛为反应介质 |
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| 引用本文： | 杨静华,陈同豪,周启昭,魏文德. 乙烯氢甲酰化反应动力学的研究——Ⅰ.以丙醛为反应介质[J]. 石油化工, 1990, 0(4) |
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| 作者姓名： | 杨静华 陈同豪 周启昭 魏文德 |
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| 作者单位： | 化工部北京化工研究院，化工部北京化工研究院，化工部北京化工研究院，化工部北京化工研究院 100013 西安第四军医大学，100013，100013，100013 |
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| 摘 要： | 以丙醛为反应介质、铑膦络合物为催化剂,对乙烯氢甲酰化反应的动力学进行了研究。通过对试验数据的关联,提出了丙醛生成速度的经验模型:r=649exp(-30400/RT)C_(Rh)~(0.949)C_T~(-0.076)P_E~(0.641)P_(H2)~(0.586)P_(CO)~(0.293)exp(0.044C_T~(-0.156)P_(CO))结果表明,C_(Rh)、T、P_(E)和 P(H2)是影响反应速度的主要因素,C_T 的影响很小,而 P_(CO)的影响在1.88bar 时有极大值,反应的表观活化能为30.4kJ/mol·K。
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Kinetics Study of Ethylene Hydroformylation 1.Using Propanal as the Reaction Medium |
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| Abstract: | The kinetics of ethylene hydroformylation with rhodium phosphine complexcatalyst in propanal medium has been studied.The rate of propanal formation maybe expressed by the following empirical model:r=649exp(-30400/RT)C_(Rh)~(?)C_T~(0.076) p_B~(0.641) p_H_2~(0.586) p_(CO)~(0.293)·exp(0.044C_T~(-0.156)pco) where r is the rate of propanal formation(mol/1·h);R is 0.314 J/mol·K;T isthe reaction temperature(K);C_(Rh) is the concentration of rhodium catalyst basedon rhodium metal(ppm);C_r is the concentration of triphenyl phosphine(w%);p_B,p_H_2 and pco are the partial pressure of ethylene,hydrogen and carbon mono-xide respectively(bar).It shows that the C_(Rh),T,p_B and p_H_2 are the major factorsto influence the reaction rate.The influence of C_r is very small,whereas that of pcohas a maximum value at 1.88 bar.The apparent activation energy of the reactionis 30.4kJ/mol.K. |
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