HYDROGENATION OF MIDDLE DISTILLATE IN COUNTERCURRENT REACTOR Russian patent published in 2007 - IPC C10G65/04 C10G65/08 

FIELD: petrochemical processes.

SUBSTANCE: major amount of hydrocarbon stock is brought into countercurrent contact with hydrogen in first reaction zone under hydrogenation reaction conditions in presence of hydrogenation catalyst in at least first catalyst bed wherein liquid leaving stream comes out of the bottom of the first reaction zone and hydrogen-containing gas stream comes out of the top of the first reaction zone. After that, insignificant part of hydrocarbon-containing stock comes into contact with above-mentioned hydrogen-containing gas stream in the second reaction zone accommodating catalyst bed disposed in such a way as to receive hydrogen-containing stream from the first reaction zone.

EFFECT: enabled production of product with ultralow content of sulfur using simple processing flowsheet.

19 cl, 7 dwg