The oligomerization of ethylene using a chromium catalyst having a heteroatomic ligand is used to provide oligomerization products that are selective towards hexene and/or octene. However, such processes also typically produce some polymer as an undesired by-product. The present invention is directed towards improvements in the selective oligomerization of ethylene wherein said process makes use of heat exchangers to provide heat where polymer by-product fouling of the reactor may occur.
使用具有异原子
配体的
铬催化剂对
乙烯进行寡聚化,以提供选择性朝向己烯和/或
辛烯的寡聚化产物。然而,这种过程通常也会产生一些聚合物作为不希望的副产品。本发明旨在改进对
乙烯的选择性寡聚化,其中该过程利用换热器提供热量,以防止反应器内可能发生的聚合物副产物结垢。