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固定甲苯、催化剂及配体用量,对乙烯在甲苯溶剂中的氢甲酰化反应动力学进行了研究。以反应计量比为1:1:1的乙烯、一氧化碳和氢气为反应混合气,测定了100℃、93℃和81℃下反应压力随时间的变化曲线,通过动力学方程求解获得了3种气体总的反应级数、反应速率常数和活化能,得到反应的活化能为55.0 k J/mol。进一步通过一氧化碳和氢气过量,得到了乙烯的反应级数。然后通过氢气过量,得到了乙烯和一氧化碳的总反应级数,随后即计算得到了一氧化碳和氢气各自的反应级数,表明一氧化碳分压高会抑制反应速率,而增加乙烯和氢气分压对反应速率有促进作用。
The kinetics of hydroformylation of ethylene in toluene was studied with fixed toluene, catalyst and ligand. The reaction pressure was measured at 100 ℃, 93 ℃ and 81 ℃ with ethylene, carbon monoxide and hydrogen as the reaction mixtures with the reaction ratio of 1: 1: 1. The kinetics equations were used to obtain the three gases The total reaction order, reaction rate constant and activation energy gave an activation energy of 55.0 kJ / mol. Further by carbon monoxide and hydrogen excess, ethylene reaction series. Then, the total reaction order of ethylene and carbon monoxide was obtained by hydrogen excess, and then the respective reaction orders of carbon monoxide and hydrogen were calculated, indicating that the partial pressure of carbon monoxide would inhibit the reaction rate and increase the partial pressure of ethylene and hydrogen on the reaction rate Promote