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Composite porous metal catalyst distillation construction member and preparing method thereof

A catalytic distillation and porous metal technology, which is applied to the structure of the internal components of a catalytic distillation column and the field of preparation thereof, can solve the problems of limited application field, complicated preparation process, impracticality and the like, and achieves high separation performance and improved mass transfer and heat transfer efficiency. , the effect of high utilization

Inactive Publication Date: 2006-02-15
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The metal-supported catalysts prepared by the above patents are only suitable for the treatment of motor vehicle exhaust, and the application fields are limited, and the preparation process is complicated and impractical.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] The porous metal plate (provided by Antai Technology Co., Ltd.) of stainless steel base material has a uniform microporous structure, with a pore diameter of 10-20 μm, a porosity of 35%, and a plate thickness of 0.5 mm. According to the conventional method for preparing the metal corrugated board, the perforated metal plate is made into a perforated metal corrugated plate with a corrugation inclination angle of 45°, a wave crest height and a wave distance of 15 mm. Prepare a number of porous metal corrugated plates according to the above method, and assemble each of the plates. When assembling, the corrugations of two adjacent plates are crossed by 90°, and each plate is assembled to form a φ100×50mm structured packing disc.

Embodiment 2

[0039] The porous metal structured filler prepared in Example 1 was used as a matrix to modify its surface. (1) Choose ultra-fine alumina powder with a particle size of less than 10μm, add distilled water at a weight ratio of 1:3, and stir evenly; add phosphoric acid and adjust the pH of the solution to 2.5 to prepare water-based coatings; (2) For porous The surface of the metal structured packing is cleaned and dried; (3) The water-based paint is evenly dipped on the porous metal structured packing and dried at room temperature; (4) The dried porous metal structured packing is placed in an oven , Dried at 110°C; (5) The dried porous metal structured packing was fired at 600°C for 8 hours, and then solidified and heat treated to obtain a porous metal structured packing forming a modified layer.

Embodiment 3

[0041] The catalytic distillation component proposed in the present invention can be used for the alkylation of ethylene and benzene to produce ethylbenzene. For the modified porous metal structured packing prepared in Example 2, the β molecular sieve was loaded by the liquid phase immersion method. Take β molecular sieve powder with a particle size of less than 10μm, add distilled water at a weight ratio of 1:2, stir evenly, then add nitric acid to adjust the pH of the solution to 4, then immerse the porous metal structured packing into the solution, and take it out for washing after 48 hours. Drying and crystallization; the above-mentioned immersion, washing, drying, and crystallization process is repeated 3 times, and then calcined at 500° C. for 10 hours to prepare a composite porous metal catalytic distillation component. The prepared catalytic distillation components are installed in the reaction section of the φ100mm catalytic distillation tower. The catalytic distillation ...

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PUM

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Abstract

The present invention discloses a composite porous metal catalytic distillation structure component and its preparation method. Said structure component is formed from base body, modifying layer and active layer. It is characterized by that it uses the porous metal regular packing with micropore structure as base body, uses the ceramic coating layer formed after the surface of the base body is treated as modifying layer and uses the catalyst active component covering on the modifying layer as active layer. Said invented catalytic distillation structure component integrates the distillation packing and catalyst into one body so as to raise its reaction and separation effect, and is easily suitable for industrial application.

Description

Technical field [0001] The invention relates to a catalytic distillation component applied in the field of petrochemical industry, in particular to a structure of a catalytic distillation tower internal component in a catalytic distillation process and a preparation method thereof. Background technique [0002] Catalytic distillation technology is a new chemical engineering method developed in recent years. This technology integrates the catalytic process and the distillation process, so that the operation process of reaction and separation can be carried out simultaneously in the same tower. The process can continuously separate and remove the reaction products from each reaction unit, and can also use the heat of reaction as the heat of vaporization required for the distillation process at the same time. Catalytic distillation technology has a series of advantages such as high conversion rate, good selectivity, low energy consumption, high product purity, easy operation, and lo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01D3/00B01J8/00B01J19/32B01J35/04B01J37/02
Inventor 杨元一李东风戴伟陈硕王国清廖丽华程建民郭彦来彭晖
Owner CHINA PETROLEUM & CHEM CORP
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