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Hydrogenation process of hydrogen peroxide fluidized bed by anthraquinone

A technology of hydrogen peroxide and anthraquinone method, applied in peroxide/peroxyhydrate/peroxyacid/superoxide/ozonide, inorganic chemistry, organic chemistry, etc. Catalyst fluidization, affecting catalyst utilization efficiency and other issues, to achieve the effect of small bottom pressure difference, short space time and low bed resistance

Inactive Publication Date: 2006-08-16
LIMING RES INST OF CHEM IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the fluidized bed of this process is equipped with wire mesh packing, it greatly affects the fluidization of the catalyst, which makes the catalyst unevenly distributed in the bed and affects the utilization efficiency of the catalyst.

Method used

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  • Hydrogenation process of hydrogen peroxide fluidized bed by anthraquinone
  • Hydrogenation process of hydrogen peroxide fluidized bed by anthraquinone
  • Hydrogenation process of hydrogen peroxide fluidized bed by anthraquinone

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Embodiment 1

[0036] Hydrogen peroxide is prepared on a hydrogen peroxide device in the whole process (including hydrogenation, oxidation, extraction, and post-treatment processes), and the hydrogenation process adopts the process of the present invention (see accompanying drawing). Working fluid system: heavy aromatics + methylcyclohexyl acetate + 2-ethylanthraquinone + tetrahydro 2-ethylanthraquinone. Wherein: heavy aromatics: methylcyclohexyl acetate (V: V) = 1: 1; 2-ethylanthraquinone: tetrahydro 2-ethylanthraquinone (m: m) = 2: 1. The catalyst adopts aluminate as a carrier to support palladium, with an average diameter of 0.18mm and a palladium content of 1.86%. The reaction section of the hydrogenation reactor is Φ40×3500mm, and the enlarged settling section is Φ100×7000mm. The operating conditions of the hydrogenation process: the gas phase pressure at the top of the hydrogenation reactor is 0.2MPa, the temperature inside the hydrogenation reactor is 45°C, the empty time of the work...

Embodiment 2

[0038]Hydrogen peroxide is prepared on a hydrogen peroxide device in the whole process (including hydrogenation, oxidation, extraction, and post-treatment processes), and the hydrogenation process adopts the process of the present invention (see accompanying drawing). Working fluid system: heavy aromatics + trioctyl phosphate + 2-ethylanthraquinone + tetrahydro 2-ethylanthraquinone. Wherein: heavy aromatic hydrocarbon: trioctyl phosphate (V: V) = 3: 1; 2-ethylanthraquinone: tetrahydro 2-ethylanthraquinone (m: m) = 2: 1. The catalyst adopts silicate as a carrier to support palladium, with an average diameter of 0.14mm and a palladium content of 2%. The reaction section of the hydrogenation reactor is Φ500×15000mm, and the enlarged settling section is Φ100mm×3000mm. The operating conditions of the hydrogenation process: the gas phase pressure at the top of the hydrogenation reactor is 0.3MPa, the temperature inside the hydrogenation reactor is 50°C, the empty time of the workin...

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Abstract

A hydrogenation process for producing fluidized bed with hydrogen peroxide by anthraquinone method is carried out by taking empty tower hydrogenation reactor with amplification section on top, moving operating liquid and hydrogen upward at specific speed, floating powdery catalyst in tower body, hydrogenation reacting by free contacting, separating hydrogenated liquid by gas-liquid separating system, filtering by filter system and oxidizing. It has fast hydrogenation speed, low resistance, homogenous distribution and higher utilization rate.

Description

technical field [0001] The present invention relates to anthraquinone method to produce hydrogen peroxide (H 2 o 2 ) processes, especially hydrogenation processes. Background technique [0002] At present, the production of hydrogen peroxide at home and abroad mostly adopts the anthraquinone method. The production process of the method is: in the presence of a catalyst, under a certain temperature and pressure, the alkylanthraquinone (hereinafter referred to as anthraquinone) in the working solution (an organic solution made of an alkylanthraquinone and a mixed organic solvent in a certain proportion) React with hydrogen to generate corresponding hydrogen anthraquinone. At this time, the working liquid is called hydrogenation liquid. The hydrogen anthraquinone in the hydrogenation liquid reacts with oxygen to generate the original anthraquinone and hydrogen peroxide. At the same time, the hydrogenation liquid becomes an oxidizing liquid. The liquid is extracted with pure ...

Claims

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Application Information

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IPC IPC(8): C07C37/055C07C39/00C01B15/023
Inventor 胡长诚苏广文陈群来崔建华郭菊荣贾瑾王丽丽宫延明寇志豪
Owner LIMING RES INST OF CHEM IND
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