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Pilot scale test benzene vaporization mixer

A technology of mixer and mixed gas, applied in the directions of mixer, mixing method, mixture post-processing, etc., can solve problems such as unfavorable tar removal, and achieve the effect of avoiding catalyst deactivation

Inactive Publication Date: 2016-05-04
TIANJIN TIANHUAN FINE INST OF CHEM ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the internal pipeline set by the device is a straight pipe, which is not conducive to the removal of tar

Method used

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  • Pilot scale test benzene vaporization mixer
  • Pilot scale test benzene vaporization mixer

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Embodiment Construction

[0020] The specific implementation manners of the present invention will be briefly described below in conjunction with the accompanying drawings.

[0021] Such as figure 1 , figure 2 As shown, a pilot test benzene vaporization mixer is characterized in that it includes a vaporization mixer shell 1, an upper head 2, an upper flange 3, a lower head 4, a lower flange 5, a mixed gas outlet 6, an air Inlet pipe 7, feed pipe 8, atomization pipe 9, atomization nozzle 10, upper packing 11, lower packing 12, sieve plate 13, the upper sealing head 2 is located at the upper part of the vaporizing mixer shell 1, the upper sealing The head 2 is connected to the vaporization mixer shell 1 through the upper flange 3, the lower head 4 is located at the bottom of the vaporization mixer shell 1, and the lower head 4 is connected to the vaporization mixer shell 1 through the lower flange 5 , the air inlet pipe 7 is located at the lower side of the carburetor housing 1, the gas mixture outlet...

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Abstract

The invention provides a pilot scale test benzene vaporization mixer. The mixer comprises a vaporization mixer housing, an upper head, an upper flange, a lower head, a lower flange, a mixed gas outlet, an air inlet pipe, a feeding pipe, an atomization pipe, atomization nozzles, an upper filling material, a lower filling material and a sieve plate. The upper filling material and the lower filling material are arranged in the vaporization mixer housing. The feeding pipe is located at one side of the vaporization mixer housing. The atomization pipe is located in the vaporization mixer housing. The atomization nozzles are located on the atomization pipe. Through use of the multiple atomization nozzles on the annular atomization pipe, benzene in a form of atomized droplets enters the vaporization mixer, fully contacts with hot air in the vaporization mixer and is vaporized, the benzene steam and air can be fully mixed through the upper filling material, and the upper filling material and the lower filling material can adsorb a less amount of tar in benzene so that the tar does not enter a catalyst bed and causes catalyst inactivation.

Description

technical field [0001] The invention relates to a vaporization mixing device, in particular to a pilot test benzene vaporization mixer. Background technique [0002] Maleic anhydride, maleic anhydride for short, is one of the important basic organic chemical raw materials, mainly used in plastics, coatings, medicine, papermaking, synthetic resin and other industries. At present, the domestic production processes of maleic anhydride mainly include n-butane method and benzene oxidation method, among which benzene oxidation method is dominant. The benzene oxidation method uses benzene and air as raw materials, using V 2 o 5 -Mo 2 o 3 A series of catalysts, through a fixed bed reactor catalytic oxidation reaction to generate maleic anhydride. In the oxidation process, the incomplete vaporization of benzene has a great influence on the performance of the catalyst. Therefore, how to realize the complete vaporization of benzene and the full mixing of benzene and air are the p...

Claims

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Application Information

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IPC IPC(8): B01F13/00B01F3/20B01F3/22B01D53/04B01F23/70B01F23/80
CPCB01D53/04B01D2253/1122B01D2257/70B01F23/706B01F23/708B01F23/808B01F33/00
Inventor 庄广庆李学刚孟维宣
Owner TIANJIN TIANHUAN FINE INST OF CHEM ENG
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