Process for desulphurization of a hydrocarbon stream with a reduced consumption of hydrogen
AssigneeHaldor Topsoe A/S
InventorsMichael G. Hunter, Rasmus G. Egeberg, Kim G. Knudsen
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Abstract
A two-stage hydrotreating process is disclosed wherein a hydrocarbon stream is first desulphurized followed by a dehydrogenation step, which process comprises in combination contacting the feed and hydrogen over a hydrotreating catalyst at hydrotreating conditions, heating the hydrotreated effluent and hydrogen-rich gas from the hydrotreating reactor and contacting said effluent and hydrogen gas over a hydrotreating catalyst in a post-treatment reactor at a temperature sufficient to increase the polyaromatic hydrocarbon content and lower the hydrogen content of said effluent.
Claims4
A process for reducing content of sulphur compounds in a hydrocarbon feedstock, which process comprises the steps of
- (a) contacting the said feedstock with a hydrogen-rich gas over a hydrotreating catalyst at conditions being effective in hydrogenation of hydrogenable compounds being present in the feedstock,
- (b) heating the effluent consisting of hydrotreated feedstock, hydrogen sulphide and hydrogen, and
- (c) contacting the said effluent with a hydrotreating catalyst at conditions being effective in dehydrogenation of aromatic hydrocarbons.
Dependencies are inferred from the claim text.