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Method and device for concentrating and coupled-drying catalyst in quenched wastewater in process of using methanol to prepare olefin

A methanol-to-olefins and catalyst technology, applied in the field of coal chemical industry, can solve the problems of undeveloped energy consumption and large energy consumption

Inactive Publication Date: 2012-09-12
SHANGHAI HUACHANG ENVIRONMENT PROTECTION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the above-mentioned patent return device adopts a single-axis or double-axis screw conveying mechanism, and the screw conveying mechanism completely relies on frictional force for transportation, which consumes a lot of energy.
[0006] So far, this field has not yet developed a low energy consumption, economical and practical treatment method for quenching wastewater containing catalysts

Method used

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  • Method and device for concentrating and coupled-drying catalyst in quenched wastewater in process of using methanol to prepare olefin
  • Method and device for concentrating and coupled-drying catalyst in quenched wastewater in process of using methanol to prepare olefin
  • Method and device for concentrating and coupled-drying catalyst in quenched wastewater in process of using methanol to prepare olefin

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Embodiment 1

[0052] The catalyst-containing quenching wastewater treatment system of a methanol-to-olefins plant in a factory uses the method and device of the present invention to concentrate and dry the catalyst-containing quenching water that has passed through two-stage swirls. The properties and parameters of the materials are shown in the following table:

[0053]

[0054] Process flow:

[0055] The used methanol-to-olefins catalyst-containing quenching wastewater treatment system such as figure 2 shown.

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Abstract

The invention relates to a method and device for concentrating and coupled-drying a catalyst in quenched wastewater in the process of using methanol to prepare olefin, and provides the method for concentrating and coupled-drying the catalyst in quenched wastewater in the process of using methanol to prepare olefin. The method comprises the following steps of: carrying out concentrating treatment on the quenched wastewater containing catalyst in the process of using the methanol to prepare olefin to obtain a concentrated phase of the catalyst; and drying the concentrated phase of the catalyst and recovering the catalyst in a solid form, wherein a self-returning blade drying machine is adopted for drying. The invention also provides a device for concentrating and coupled-drying a catalyst in quenched wastewater in the process of using methanol to prepare olefin.

Description

technical field [0001] The invention belongs to the field of coal chemical industry, and relates to a method for recovering catalysts in methanol-to-olefins quenching wastewater. Specifically, the invention relates to a catalyst concentration and coupled drying method in methanol-to-olefins quenching wastewater. Catalyst concentration and coupling drying device in olefin quenching wastewater. Background technique [0002] Catalysts are widely used in various industrial fields such as chemical industry, petrochemical industry and biochemical industry. During use, the catalyst will enter the subsequent process and downstream equipment along with the reaction product, so how to maximize the recovery and utilization of the catalyst is the top priority of engineering design. In the production process of methanol to olefins, the product effluent carrying the catalyst leaves the reactor and enters the quench tower for quenching. Most of the catalyst particles enter the water and e...

Claims

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Application Information

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IPC IPC(8): B01J37/08B01D21/26F26B11/14
Inventor 吕文杰汪华林李剑平崔馨汪华奎
Owner SHANGHAI HUACHANG ENVIRONMENT PROTECTION
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