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Hydrogenation system for hydrogen peroxide production

A hydrogenation system and hydrogen peroxide technology, applied in the field of hydrogenation systems, can solve the problems of limiting hydrogenation efficiency and high chemical consumption, and achieve the effect of overcoming uneven flow

Active Publication Date: 2014-08-06
POLYTEX CHEM ENG CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Existing process conditions limit hydrogenation efficiency, resulting in low efficiency relative to fluidized beds and high chemical consumption

Method used

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  • Hydrogenation system for hydrogen peroxide production

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Embodiment Construction

[0009] The present invention will be further described below in conjunction with specific drawings.

[0010] Such as figure 1 Shown: the hydrogenation system for hydrogen peroxide production includes the first working fluid cooler E1101A, the second working fluid cooler E1101B, the first tower T1101A, the second tower T1101B, hydrogenation liquid filter X1103, hydrogenation liquid storage Tank V1104, hydrogenation liquid cooler E1102, first hydrogenation tail gas condenser E1103A, second hydrogenation tail gas condenser E1103B, first hydrogenation liquid circulation pump P1, second hydrogenation liquid circulation pump P2, drainage pump P3, etc.

[0011] Such as figure 1 As shown, the present invention includes a first working fluid cooler E1101A, a second working fluid cooler E1101B, a hydrogenation tower, a hydrogenation liquid filter X1103 and a hydrogenation liquid storage tank V1104; Or connect the first tower T1101A and the second tower T1101B in series, the inlet of t...

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Abstract

The invention relates to a hydrogenation system for hydrogen peroxide production. The hydrogenation system comprises two hydrogenation towers and is characterized in that the two hydrogenation towers are provided with tower kettles; an inlet of the tower top of the first tower is connected with an outlet of a first working liquid cooler, and a hydrogen inlet in the upper part of the tower kettle of the first tower is connected with a hydrogen source; one outlet of the kettle bottom of the first tower is connected with an inlet of the first working liquid cooler, and the inlet of the first working liquid cooler is connected with a circulation working liquid source; another outlet of the kettle bottom is connected with an inlet of a second working liquid cooler, and an outlet of the second working liquid cooler is connected with a hydrogenated liquid inlet in the tower top of the second tower; an outlet of the kettle bottom of the second tower is connected with the inlet of the second working liquid cooler through a second hydrogenated liquid circulating pump, and another outlet of the tower kettle is connected with a hydrogenated liquid filter; the hydrogenated liquid filter is connected with a hydrogenated liquid storage tank, and the hydrogenated liquid storage tank is connected with a hydrogenated liquid cooler; the hydrogenated liquid cooler is connected with an oxidizing tower. The hydrogenation system solves the problems that gas and liquid do not flow uniformly in a static bed, and local working liquid flows obliquely and is in retention, which cause that anthraquinone is excessively hydrogenated to be degraded.

Description

technical field [0001] The invention relates to a hydrogenation system for hydrogen peroxide production, which belongs to the technical field of hydrogen peroxide production equipment. Background technique [0002] China's existing fixed-bed hydrogenation process for the production of hydrogen peroxide by anthraquinone method is a gas-liquid co-current palladium catalyst fixed technology, a typical one is the upper, middle and lower three-tower series process developed by Liming Research Institute of Chemical Industry, and the Chinese invention Patent: ZL201010160053.1 describes the series process of the upper and lower two towers with an intercooler. The hydrogen gas and the working liquid used as raw materials enter from the top of the tower, and the gas-liquid two-phase co-flows through the catalyst layer and flows down. Since the hydrogenation tower is filled with a solid catalyst (i.e., a fixed bed), gas and liquid flow among the catalyst particles and chemical reactio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B15/023
Inventor 陈纪兴俞海徐建伟
Owner POLYTEX CHEM ENG CO LTD
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