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Three-dimensional hollow tube microarray framework catalyst and method of using same to prepare beta-phenylethanol

A three-dimensional hollow, catalyst technology, used in oxidation reaction preparation, chemical instruments and methods, physical/chemical process catalysts, etc., can solve the problems of poor catalyst structure and performance, reduced catalyst life, difficult product separation, etc., to simplify products. The effect of separation process, extended life, and improved process safety

Active Publication Date: 2019-04-05
WANHUA CHEM GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The β-phenylethanol preparation processes proposed by patents CN1111169A, US6979753, US4943667, US2524096, etc. all require the use of solvents, which reduces production efficiency, complicates the product separation process, and increases the cost of solvent removal, etc.
[0006] To sum up, the existing technologies all have certain deficiencies to varying degrees. If additives need to be added to improve selectivity, but at the same time cause problems such as reduced catalyst life, difficult product separation, and even affect product quality; such as catalyst structure and Poor performance, which leads to easy deactivation of the catalyst and short catalyst life; if a solvent is required due to the heat transfer limitation of the reactor, the separation cost is increased

Method used

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  • Three-dimensional hollow tube microarray framework catalyst and method of using same to prepare beta-phenylethanol
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Experimental program
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Effect test

Embodiment 1

[0045] The preparation of the catalyst was carried out on the FS271M selective laser melting (SLM) molding equipment (Hunan Farsoon High-Tech Co., Ltd.), the alloy powder (provided by Falcon Rapid Manufacturing Co., Ltd.) had a particle size of 15 μm, and the Ni content of the alloy powder was 45.3 wt%. , Al content 50.8wt%, Cr content 2.7wt%, Mo content 1.2wt%, processed into a three-dimensional Kagome grid structure, its cells are formed by connecting two regular tetrahedrons to the top, and the SLM forming process parameters are set as: The Kogome cell side length is 300 μm, the hollow tube diameter is 100 μm, the hollow tube wall thickness is 10 μm, the block size is 100mm*100mm*100mm, the laser power is 150W, the spot diameter is 80μm, the scanning speed is 15m / s, and the scanning distance is 0.45mm.

[0046] The obtained catalyst is CAT-1.

Embodiment 2

[0048] The preparation of the catalyst was carried out on the FS271M selective laser melting (SLM) molding equipment (Hunan Farsoon High-Tech Co., Ltd.), the alloy powder (provided by Falcon Rapid Manufacturing Co., Ltd.) had a particle size of 45 μm, and the Ni content of the alloy powder was 54.7wt%. , Al content 36.2wt%, Cr content 5.9wt%, Cu content wt3.2%, processed into a three-dimensional Kagome grid structure, its cells are formed by connecting two regular tetrahedrons to the top, and the SLM forming process parameters are set as : Kogome cell side length 550μm, hollow tube diameter 50μm, hollow tube wall thickness 20μm, block size 150mm*150mm*150mm, laser power 500W, spot diameter 220μm, scanning speed 35m / s, scanning distance 0.1mm .

[0049] The obtained catalyst is CAT-2.

Embodiment 3

[0051] The preparation of the catalyst was carried out on the FS271M selective laser melting (SLM) molding equipment (Hunan Farsoon High-Tech Co., Ltd.), the alloy powder (provided by Falcon Rapid Manufacturing Co., Ltd.) had a particle size of 30 μm, and the Ni content of the alloy powder was 50.6wt%. , Al content 45.1wt%, Mo content 4.3wt%, processed into a three-dimensional Kagome grid structure, its cells are formed by connecting two regular tetrahedrons to the top, the SLM forming process parameters are set as: Kogome cell side length 245μm , the diameter of the hollow tube is 15 μm, the wall thickness of the hollow tube is 2.5 μm, the block size is 50mm*50mm*50mm, the laser power is 425W, the spot diameter is 150μm, the scanning speed is 25m / s, and the scanning distance is 0.25mm.

[0052] The obtained catalyst is CAT-3.

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Abstract

The invention discloses a three-dimensional hollow tube microarray framework catalyst and a method of using the same to prepare beta-phenylethanol. The three-dimensional hollow tube microarray framework catalyst is fixed to a stirring shaft to allow online activation. The three-dimensional hollow tube microarray framework catalyst is prepared by means of selective laser fusion. The three-dimensional hollow tube microarray framework catalyst is suitable for preparing beta-phenylethanol by styrene hydrogenation-oxidation under high selectivity and high yield under the conditions of zero solvent,zero aid and mildness; oxidized styrene conversion rate is >99.9%, beta-phenylethanol selectivity is > / =99%, desolvation energy consumption is lowered, and production cost is lowered. The preparationmethod of beta-phenylethanol herein is suitable for continuous production of beta-phenylethanol, and production efficiency is greatly improved.

Description

technical field [0001] The invention relates to a catalyst for preparing β-phenylethanol through hydrogenation of styrene oxide, in particular to a three-dimensional hollow tube micro-array skeleton catalyst and a method for preparing β-phenylethanol using the catalyst. Background technique [0002] β-Phenylethyl alcohol (PEA), also known as 2-phenylethyl alcohol, phenylethyl alcohol, ethyl phenylethyl alcohol, is a simple aromatic primary alcohol, a colorless liquid at room temperature, with an elegant, delicate and long-lasting aroma of roses , was first discovered as a characteristic aroma compound in plant flowers, and naturally exists in aromatic oils such as neroli oil, rose oil, and geranium oil. [0003] β-Phenylethyl alcohol is widely used in various food flavors and tobacco flavors because of its soft, pleasant and long-lasting rose aroma. It is the main raw material for preparing rose-flavored food additives and rose-flavored flavors. β-Phenethyl alcohol is secon...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J23/887B01J23/883B01J23/89C07C29/48B01J35/04C07C33/22
CPCC07C29/48B01J23/883B01J23/8878B01J23/892B01J35/56C07C33/22
Inventor 曾伟王明永王磊黎源杨恒东赵欣王展宋延方杨洋陈永
Owner WANHUA CHEM GRP CO LTD
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