Reaction Rules Of Semi-regeneration Catalytic Reforming And Analyses Of The Feasibility By Blending FCC Gasoline Into The Reforming Feed

Aiming at the present semi-regeneration catalytic reforming technology, the thesis investigated the effects of temperature, pressure and space velocity on the reforming reaction by experimental method and determined the optimum process conditions at last.The different effects of reforming catalyst of dual function on the reforming reaction were studied. The formula for calculating the mount of supplying chlorine to the reaction system was deducted and verified according to the water-chlorine balance principle. The results show that under certain technological conditions, the water content of the reforming feed stocks are calculated with knowing the amount and properties of the reaction products and determining the appropriate partial pressure of water. The supplement water amount is the difference between the water content of the feed going through the evaporating column and the above calculated value. To a certain catalyst, after determining the optimum chlorine content, the water-chlorine molecular ratios at the standard temperature and the reaction temperature can be confirmed. On the above basis, the chlorine content of the reforming feed can be calculated according to the above formula.The thesis also discussed the feasibility of mixing catalytic gasoline into the reforming feed. The results of experimental and industrial tests showed that it is necessary to fix the proper mixing proportion according to the different properties of reforming feed and catalyzing feed as the precondition of blending catalytic gasoline in the reforming feed in the refinery with rich pre-hydrogenation capability, i.e with deficient naphtha feed. And sometimes we should contact academes to perform the mixing experiments in question. During the practical blending process, the effects of the properties of mixed feed on the pre-hydrogenation catalyst need to be considered and the pre-hydrogenation catalyst can be changed according to the practical situation of the refinery.