摘要
为了深入研究丁烯氢甲酰化反应中可能发生的异构化与氢甲酰化反应,在Rh-BIPHEPHOS的催化作用下,对比研究了不同丁烯原料在不同温度下与合成气的反应。结果表明,1-丁烯与合成气反应时,异构化产物(2-丁烯)比氢甲酰化产物多,而以2-丁烯作为原料时,氢甲酰化反应占优势;受到1-丁烯和2-丁烯之间反应平衡的限制,温度对异构化反应有较大的正向影响。此外,在Rh-BIPHEPHOS的催化作用下,因为BIPHEPHOS较大的咬合角限制了异戊醛形成过程中的中间重排,所以产物中正戊醛的量要比异戊醛多。
The isomerization and hydroformylation of butene under the catalysis of Rh-BIPHEPHOS were investigated by varying the butene feed and reaction temperature.The results indicate that in the presence of syngas,with 1-butene as feed,more isomerization product(i.e.2-butene)is detected in comparison with the hydroformylation products,whereas with 2-butene as the feed,the hydroformylation is superior to isomerization.Due to the equilibrium limit between 1-butene and 2-butene,the increase of temperature shows a great positive effect on the isomerization reaction.Furthermore,under the catalysis of Rh-BIPHEPHOS,more n-pentanal is always formed than i-pentanal,as the larger bite angle of BIPHEPHOS restricts the intermediate rearrangement in the formation of i-pentanal.
作者
姜伟丽
何利梅
黄斌
陈雅琪
周广林
周红军
JIANG Wei-li;HE Li-mei;HUANG Bin;CHEN Ya-qi;ZHOU Guang-lin;ZHOU Hong-jun(College of New Energy and Materials,Beijing Key Laboratory of Biogas Upgrading Utilization,China University of Petroleum(Beijing),Beijing 102249,China;BOE Technology Group Co.,Ltd,Chengdu 610000,China)
出处
《燃料化学学报》
CSCD
北大核心
2021年第8期1173-1180,共8页
Journal of Fuel Chemistry and Technology
基金
The project was supported by the Scientific Research and Technological Development Project of CNPC(LH-17-08-53-02)
the Strategic Cooperation Technology Projects of CNPC and CUPB(ZLZX2020-04).
关键词
氢甲酰化
铑
催化
丁烯
戊醛
异构化
hydroformylation
rhodium
catalysis
butene
pentanal
isomerization
