Inquiry About Raising Productivity Of Diesel Oil In Catalytic Crackers

The catalytic cracking technology, a main second-order transition technology, is always playing a very important role in a comprehensive petroleum refinery, In recent years, evolutionary operation of the technology has made great contributions to the improvement of purpose product percentage and economy efficiency. The normal technology to increase the diesel oil percentage in catalytic cracking for example, selecting proper crude oil, decreasing the intention of processing, exchanging the cut point between gasoline and diesel oil and so on, and the shortcoming of them are analyzed in the thesis. According to the problem and combining with the catalytic reaction mechanism, some new technology such as the polycomponent, selectivity and segmented part feed, MGD skill , VQS and terminating agent choose applied , improving the catalyst composition and producting high function catalyst of cracking are inquired into boost production of diesel oil. By this way, the percentage of diesel oil can increase 10%. It is not only the theory direction and the operation mirror to boost production of diesel oil in catalytic cracking procession, but also a benefit reference for a petroleum refinery to occupy the diesel oil market and get more profit in our country.