METHOD TO PRODUCE HIGH-OCTANE COMPONENT OF ENGINE FUEL Russian patent published in 2012 - IPC C10G59/00 C10G59/02 C10G65/12 

FIELD: power engineering.

SUBSTANCE: invention relates to a method for production of a high-octane component of engine fuel, including hydraulic treatment of a straight-run benzene fraction, separation of liquid products of hydraulic treatment into light and heavy fractions, isomerisation of light fraction and reforming of heavy fraction in presence of a platinum-containing catalyst with direction of excessive reforming hydrogen for isomerisation. Isomerisation is carried out in presence of a sulfate-zirconium catalyst and hydrogen, the produced isomerisate is stabilised with subsequent release of light and heavy fractions from the isomerisate by rectification, the mixture of which represents a product of isomerisate and also fractions containing n-hexane and methyl pentanes, which is recirculated in raw materials of isomerisation, the reformate released in process of heavy fraction reforming is exposed to rectification with release of a reformate fraction boiling up to 60-70°C, sent for mixing with the isomerisate prior to its stabilisation and fraction of 60-70°C-KK, mixed with the isomerisate product to product the target product.

EFFECT: reduced costs for isomerisation process together with preservation of the target product quality.

2 cl, 1 tbl, 6 ex