III International Conference

PP-III-72It was performed the optimization of the geometry of styrene reactor system whichincludes the minimization of apparatus pressure drop, minimization of residence time ofvapor-feedstock and reaction mixture in high temperature zones of the system in accordancewith requirements of the process thermodynamics and kinetics, and also maximum decreaseof reactor system metal consumption and achievement of minimum irregularity level of gasstream flows on catalyst bed. Deflector of the patented shape is installed in the internalperforated cylinder of the catalyst holder (distributing receiver) in order to increase theuniformity of gas stream distribution on catalyst bed and reduce the volume of hightemperature sub catalyst zone. As a result it was succeeded to exclude non-catalyticdecomposition of ethylbenzene essentially in full and decrease the stream distributionirregularity level at the catalyst bed inlet from ~ 12 %, available earlier, up to less than 4.0 %at CSC «Sibur-Khimprom» at present.The results of the researches have been used at the development of new units at JSC«Salavatnefteorgsyntez», Salavat, and at CSC «Sibur-Khimprom», Perm.605