METHODS AND APPARATUS FOR DESULPHURISATION OF HYDROCARBON STREAMS Russian patent published in 2019 - IPC C10G45/00 C10G45/02 C10G45/32 C10G65/06 C10G65/16 

FIELD: technological processes.

SUBSTANCE: in one embodiment, the hydrocarbon flow desulphurisation method includes steps of: separating a hydrocarbon stream into heavier fraction (56) and lighter fraction (54), where the heavier fraction contains a relatively higher amount of lower octane monounsaturated compounds and the lighter fraction contains a relatively higher amount of higher octane monounsaturated compounds; hydrodesulphurisation of the heavier fraction in the first hydrodesulphurisation zone (66); hydrodesulphurisation of lighter fraction in second zone (62) of hydrodesulphurisation and formation of hydro-sulfurised stream (70) from heavier fraction and lighter fraction, degassing of the hydroflower flow and removal of hydrogen sulphide from the hydroflowerized stream, flow of hydrocarbons is obtained from the naphtha flow, for this naphtha flow is subjected to operations of catalytic saturation of diolefins and catalytic demercuration with obtaining a flow of hydrocarbons.

EFFECT: disclosed are methods and apparatus for desulphuration of hydrocarbon streams.

8 cl, 2 dwg