REFORMATE HYDROTREATMENT METHOD AND APPARATUS Russian patent published in 2017 - IPC C10G45/22 C10G35/04 C10G45/00 C10G45/02 C10G49/00 C10G59/02 C10G63/02 C10G65/08 B01D69/04 B01J19/24 B01J4/00 

FIELD: hydraulic engineering.

SUBSTANCE: invention relates to a reformate hydrotreatment method and apparatus. Method comprises contacting a reformate with a catalyst having a catalytic hydrogenation action under a liquid-phase hydrotreatment condition in a hydrogenation reactor, wherein a part of hydrogen gas for hydrotreatment is produced from dissolved hydrogen contained in the reformate; wherein the hydrotreatment is carried out in presence of supplemental hydrogen gas, injected into the reformate before contacting and/or during contacting through pores by means of a mixing device, which contains, at least, one liquid passage for accommodating the reformate and at least, one gas passage for accommodating the supplemental hydrogen gas, the liquid passage is adjacent to the gas passage through a component, at least, part of the component is a porous area; wherein the reformate is obtained from bottom of gas liquid separating tank by injecting a catalytic reforming mixture into the gas liquid separating tank to remove from the product, obtained by contacting, removing volatile components, reformate is fed into the hydrogenation reactor after exchanging heat with the volatile constituent-removed oil, volatile constituent-removed oil is injected into a tower for removing heavy constituents and for aromatics extraction at the top of tower. Apparatus comprises catalytic reforming reactor (5) for contacting hydrocarbon oil with a catalyst having a reforming catalytic action under a condition of catalytic reforming in catalytic reforming reactor; gas liquid separating tank (6) for removing volatile constituents (7) from a catalytic reforming mixture by gas liquid separation with obtaining the reformate from the bottom of gas liquid separating tank (6); Mixing device (8) for injection of supplemental hydrogen gas into the reformate to produce hydrogen reformate; hydrogenation reactor (9) for contacting the hydrogen reformate with a catalyst having a catalytic hydrogenation action under a liquid-phase hydrotreatment condition, tower (10) for removing volatile constituents; tower (13) of removing heavy constituents; heat exchanger (11) to perform heat exchange with reformate. According to the method the reformate, separated in a reforming product separating tank, may be directly subjected to liquid-phase hydrotreatment; therefore, not only can the hydrogen, dissolved in the reformate be fully utilized, but the olefins in the reformate can also be removed, while eliminating the requirements for recycle hydrogen and a recycle device thereof.

EFFECT: reformate obtained by the method of the present invention reduces the bromine index to below 50 mgBr₂/100 g, and has an arene loss of less than 0,5 wt%.

25 cl, 8 dwg, 2 tbl, 6 ex