| 简介 |
FIELD : chemistry.SUBSTANCE : invention relates to the field of chemistry and can be used in oil processing in order to utilise the most widely spread polymer wastes and to obtain valuable oil refinery products. A method includes a combination of polymer wastes and oil fractions, introduction of the obtained mixture directly into a reactor and realisation of cracking at a higher temperature and atmospheric pressure, as oil fractions used is a vacuum distillate, and as the reactor - a catalytic cracking reactor, the said combination is realised by dissolution of polymer wastes, taken in a quantity of 1-7 wt % relative to the initial raw material, in oil fractions at a temperature, ensuring complete dissolution in them of polymer wastes, cracking is performed at a temperature of 475-525°C with the weight rate of the raw material supply 1.8-7.0 hin the presence of a zeolite-containing catalyst of Y type, containing rare earth metals as exchange cations.EFFECT : invention makes it possible to increase the output of a petrol fraction of distillates to 53 wt % and light gas oil to 24 wt % and obtain an additional amount of motor fuels and raw material for oil chemistry - lower hydrocarbon gases of C2-C4 composition, use operating installations, which are available in the domestic industry, reduce environment pollution with polymer wastes, obtain the petrol fraction with the high octane number (not lower than 91, 0).2 cl, 2 tbl, 12 ex |
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