METHOD OF PROCESSING MATERIAL CONTAINING NAPHTHA AND APPARATUS FOR REALISING SAID METHOD Russian patent published in 2011 - IPC C07C4/02 C07C7/04 B01J8/08 C07C11/04 C07C11/06 

FIELD: chemistry.

SUBSTANCE: invention relates to a method of processing petrochemical material which contains naphtha, containing hydrocarbons from C₅ to C₉+, involving catalytical cracking of starting material containing heavy hydrocarbons to form a stream of material containing naphtha, through contact of the stream of starting material of heavy hydrocarbons with a hydrocarbon cracking catalyst in a reaction zone with a fluidised bed to obtain an output stream of a range of hydrocarbon products, including light olefins; input of material containing naphtha, which contains hydrocarbons from C₅ to C₉+ into a separation column with a separation diaphragm and separation of said material into a light fraction which contains a compound having 5-6 carbon atoms, an intermediate fraction with compounds containing 7-8 carbon atoms, and a heavy fraction with compounds containing more than 8 carbon atoms and cracking of at least a portion of the compounds of the light fraction containing 5-6 carbon atoms to form an output stream of cracked olefins containing C₂ and C₃ olefins. The invention also relates to apparatus for realising said method.

EFFECT: invention improves processing streams of hydrocarbons meant for producing relatively large amounts of light olefins.

8 cl, 2 dwg