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Concentration integrated evaporator for hydrogen peroxide

A technology of hydrogen peroxide and evaporator, which is applied in the field of hydrogen peroxide concentration integrated evaporator, which can solve the problems that the system vacuum cannot reach the design value and the utilization rate of steam waste heat is low, so as to save steam consumption and improve energy utilization rate The effect of improving the heat transfer coefficient with the output of the unit device

Inactive Publication Date: 2019-04-09
BEFAR GROUP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to provide an integrated evaporator for hydrogen peroxide concentration, which solves the current situation that the utilization rate of steam waste heat in the concentration unit process is low, and the vacuum of the system cannot reach the design value. "Double bottleneck" problem

Method used

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  • Concentration integrated evaporator for hydrogen peroxide

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Effect test

Embodiment 1

[0023] An integrated evaporator for hydrogen peroxide concentration, characterized in that: the integrated evaporator for concentration of hydrogen peroxide is an integrated integrated device, and is designed with a vertical structure; the integrated evaporator for concentration of hydrogen peroxide includes a pre- The heater 1 is connected to the evaporator 2 through the buffer device 3, and the preheater 1 is organically combined with the evaporator 2; the evaporator 2 is connected to the first-stage steam injector; the preheater 1 It is also respectively connected with the first-stage hydrogen peroxide heat exchanger and the second-stage steam injector, and the preheater 1 exchanges heat and lowers the high-calorie residual gas injected by the first-stage steam injector. .

[0024] Optionally, the heat source of the hydrogen peroxide concentration integrated evaporator is medium-pressure steam and / or high-pressure steam, wherein the degree of superheat of the medium-pressur...

Embodiment 2

[0029] An integrated evaporator for hydrogen peroxide concentration, characterized in that: the integrated evaporator for concentration of hydrogen peroxide is an integrated integrated device, and is designed with a vertical structure; the integrated evaporator for concentration of hydrogen peroxide includes a pre- The heater 1 is connected to the evaporator 2 through the buffer device 3, and the preheater 1 is organically combined with the evaporator 2; the evaporator 2 is connected to the first-stage steam injector; the preheater 1 It is also respectively connected with the first-stage hydrogen peroxide heat exchanger and the second-stage steam injector, and the preheater 1 exchanges heat and lowers the high-calorie residual gas injected by the first-stage steam injector. .

[0030] Optionally, the heat source of the hydrogen peroxide concentration integrated evaporator is medium-pressure steam and / or high-pressure steam, wherein the degree of superheat of the medium-pressur...

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Abstract

The invention discloses a concentration integrated evaporator for hydrogen peroxide. The concentration integrated evaporator is characterized by being integrated equipment designed into a vertical structure; the concentration integrated evaporator comprises a preheater, and the preheater is connected with an evaporator through a buffer device and is organically combined with the evaporator; the evaporator is connected with a first-stage steam ejector; and the preheater is further connected with a first-stage hydrogen peroxide heat exchanger and a second-stage steam ejector, respectively and isused for realizing heat exchange and cooling of high-heat waste gas ejected by the first-stage steam ejector. According to the concentration integrated evaporator, the situations that the waste heatutilization rate of steam is low, and a system vacuum degree cannot reach a design value in a concentration unit process are solved, the part of the waste heat is recycled, and meanwhile, the ''doublebottleneck'' problem is considered.

Description

technical field [0001] The invention relates to an evaporator, in particular to an integrated hydrogen peroxide concentration evaporator. Background technique [0002] Today, hydrogen peroxide production technology mainly adopts anthraquinone production process at home and abroad, which is mainly divided into fixed bed production process and fluidized bed production process according to different hydrogenation reaction methods. [0003] Our company's hydrogen peroxide production technology is a fluidized bed production process imported from abroad. After the optimization and improvement of the technical personnel of the project team, it was successfully started in September 2013, and the qualified products were produced. The follow-up gradually reached the process design value. The first set of hydrogen peroxide fluidized bed production process with independent intellectual property rights can produce four specifications of products: 27.5%, 35%, 50% industrial-grade hydrogen...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D1/00C01B15/013
CPCB01D1/0041C01B15/013Y02P20/10Y02P20/129
Inventor 王增礼刘俊芳李民堂李金彪徐伟以张林强
Owner BEFAR GROUP CO LTD