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Method and apparatus for micro hydrocyclone separation of MTO quench water and water of water-washing factory, and for concentration of fine catalyst in the same

A technology of micro-swirl and catalyst, which is applied in the field of coal conversion, can solve the problems that the expected effect cannot be achieved, and it is difficult to remove solid particles.

Inactive Publication Date: 2009-01-28
SHANGHAI HUACHANG ENVIRONMENT PROTECTION
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Problems solved by technology

However, the effective capture particle size of the conventional solid-liquid cyclone or cyclone separator is about 5-10 microns, which can only remove the catalyst lost due to abnormal working conditions such as solid-liquid cyclone separator failure or operation failure, while for In the normal working state of the cyclone separator, it is impossible or difficult to remove solid particles below 2 microns, so the conventional solid-liquid cyclone or cyclone separator can only be used in case of a catalyst accident, and cannot achieve the expected effect under normal operation

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  • Method and apparatus for micro hydrocyclone separation of MTO quench water and water of water-washing factory, and for concentration of fine catalyst in the same

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[0023] The inventor of the present invention finds after extensive and in-depth research that the most effective and cheap method is to use a cyclone separator for MTO quenching water and washing water, which have a large operating flux and a low solid-liquid system; However, because the conventional cyclone and hydrocyclone have a split particle size larger than 5 microns, it is impossible or difficult to remove solid particles below 2 microns under normal working conditions. The catalyst particles in the washing water are concentrated, because the diameter of the micro-swirl core tube is several times or even dozens of times smaller than that of the ordinary cyclone separator, so the centrifugal force on the solid particles in the separation area is compared with that of the ordinary cyclone separator It is much larger, so the separation efficiency of the micro-swirl core tube is much higher than that of ordinary cyclone and liquid cyclone separators. The present invention h...

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Abstract

The invention provides a micro-vortex flow concentration method used for fine catalyst in MTO quenching water and washing water, comprising the steps as follows: micro-vortex flow separation of MTO quenching water is carried out so as to carry out the concentration processing on the contained catalyst and micro-vortex flow separation of MTO washing water is carried out so as to carry out the concentration processing of the contained catalyst. The invention also provides a micro-vortex flow concentration device used for the fine catalyst in the MTO quenching water and washing water.

Description

technical field [0001] The invention belongs to the technical field of coal conversion, and relates to a method and a device for concentrating solid catalyst contained in quenching water and washing water of a methanol-to-olefins (MTO) process by adopting a micro-swirl method. Since the valuable catalyst particles enter the water body during the quenching and washing process, in order to recover the catalyst, liquid-solid concentration must be carried out on the quenching water and washing water. The invention is suitable for the process of concentrating fine particles including quenching water and washing water in the MTO process, and is also suitable for the process of concentrating other microfine particles or liquid droplets. Background technique [0002] Catalysts are widely used in various industrial fields such as chemical industry, petrochemical industry, and biochemical industry. The active components are often precious metals. Therefore, the cost of manufacturing c...

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Application Information

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IPC IPC(8): B01D21/26B04C7/00C07C1/20C07C11/02C10G3/00
Inventor 杨强张艳红汪华林马吉白志山
Owner SHANGHAI HUACHANG ENVIRONMENT PROTECTION
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