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Mixing and distribution device with mixture and exchange zones

A technology for mixing zones and equipment, applied in the directions of mixing methods, transportation and packaging, chemical instruments and methods, etc., which can solve problems such as large space requirements

Active Publication Date: 2016-10-26
INST FR DU PETROLE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This device makes it possible to overcome some of the disadvantages of the different systems of the prior art, but still has a large space requirement

Method used

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  • Mixing and distribution device with mixture and exchange zones
  • Mixing and distribution device with mixture and exchange zones
  • Mixing and distribution device with mixture and exchange zones

Examples

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Embodiment Construction

[0032] The compact mixing and distribution device according to the invention is used in reactors in which exothermic reactions such as hydrotreating, hydrodesulfurization, hydrodenitrogenation, hydrocracking, hydrogenation, hydrodeoxygenation or There are also hydrodearomatization reactions. Typically, the reactor has an elongated shape along a substantially vertical axis. At least one reaction fluid (also referred to as "process fluid") is circulated from the top of the reactor to the bottom of the reactor through at least one fixed bed of catalyst. Advantageously, the reaction fluid is collected at the outlet of each bed except the last one and then mixed with the quenching fluid in said apparatus before being distributed to the catalyst beds located downstream of the distribution plate. Downstream and upstream are defined with respect to the flow direction of the reactive fluid. The reaction fluid can be a gas or a liquid, or a mixture comprising liquid and gas; this depe...

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Abstract

A mixing and distribution of fluids to a catalytic reactor for downward flow, said device comprising at least a collection area (A) at least one mixing zone (B) comprising at least one mixing chamber (15) fluid at least one distribution zone (C), characterized in that said mixing zone (B) is at the same level as the distribution zone (C) and further comprises at least one exchange space (16) of fluids connected and in communication with said mixing chamber (15), said exchange chamber (16) comprising at least one lateral passage section (17a, 17b) adapted to the passage of fluids from said exchange chamber (16) said distribution region (C).

Description

technical field [0001] The present invention relates to the field of exothermic reactions and more particularly to hydrotreating, hydrodesulfurization, hydrodenitrogenation, hydrocracking, hydrogenation, hydrodeoxygenation or also hydrogenation in fixed bed reactors dearomatization reaction. The invention more particularly relates to an apparatus for mixing and distribution of fluids in a co-current downflow reactor and its use for carrying out exothermic reactions. Background technique [0002] Exothermic reactions, such as those carried out in refining and / or in petrochemicals, require cooling by an additional fluid called a quenching fluid, in order to avoid thermal runaway of the catalytic reactor in which the exothermic reaction takes place. Catalytic reactors for these reactions generally comprise at least one bed of solid catalyst. The exothermic nature of the reaction requires maintaining a uniform temperature gradient within the reactor in order to avoid hot spots...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J8/00B01J8/02B01J8/04B01F23/00B01J35/00
CPCB01J8/0453B01J8/0492B01J8/0496B01J19/006C10G65/10C10G65/12B01J2208/00362B01J2208/00371B01J2219/00765B01J8/008B01J8/0242B01J8/0285B01J2208/00849B01J2208/00336B01J8/0278C10G45/02C10G45/44C10G47/00B01J8/04B01J8/0446B01J2208/00938B01J2208/027
Inventor P.贝亚F.巴泽-巴希C.普莱F.奥吉耶Y.阿鲁恩J.德尔泰
Owner INST FR DU PETROLE