METHOD OF HYDROCARBON OIL DESULFURISATION Russian patent published in 2008 - IPC C10G27/04 C10G53/14 

FIELD: chemistry; technological processes.

SUBSTANCE: method of hydrocarbon oil desulfurisation involves hydrocarbon oil contact with hydrodesulfurisation catalyst in hydrodesulfurisation reaction zone (3) to reduce sulfur content to a relatively low level, and contact of obtained hydrocarbon flow from hydrodesulfurisation zone with an oxidiser (8) to transform residual sulfur-containing compounds with low grade of concentration into compounds oxidised for sulfur. Obtained hydrocarbon oil flow with compounds oxidised for sulfur is separated by contact to adsorbent material (18, 30) adsorbing compounds oxidised for sulfur, after decomposition of any residual oxidiser. With obtaining of hydrocarbon oil flow featuring low concentrations of compounds oxidised for sulfur. Exhausted adsorbent (18, 30) is recovered and returned to service as adsorbent.

EFFECT: obtaining products with ultra low sulfur concentration.

1 dwg