Outside circulation gas lift type membrane reactor

A membrane reactor and reactor technology, which is applied in chemical instruments and methods, sustainable biological treatment, chemical/physical processes, etc., can solve the problems of low mixing efficiency and mass transfer efficiency, and cannot meet the difference between mixing efficiency and mass transfer efficiency. Control and other issues to achieve the effect of improving mixing efficiency, realizing separation efficiency and aeration efficiency, and improving stability

Inactive Publication Date: 2007-02-21
JIANGSU JIUWU HITECH
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  • Summary
  • Abstract
  • Description
  • Claims
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Problems solved by technology

However, this system is only an airlift aeration system, and the structure of its reactor is not an airlift reactor. Its airlift circulation is only in the pipeline, and the mixing efficiency and mass transfer efficiency in the main body of the reactor are relatively high. Low, and cannot meet the requirements of continuous membrane aeration and continuous separation and separate control of mixing efficiency and mass transfer efficiency

Method used

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  • Outside circulation gas lift type membrane reactor
  • Outside circulation gas lift type membrane reactor
  • Outside circulation gas lift type membrane reactor

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Embodiment approach 1

[0032]The outer circulation airlift membrane provided by the present invention is mainly composed of a reactor kettle body 2, an outer circulation airlift tube 5 connected to the reactor, a funnel-shaped backflow tube 4, and an axial aeration nozzle 3, which are packaged in the airlift tube The inorganic membrane element 7 is shown in FIG. 1 . The reactor body 2 includes two parts: an expansion section and a contraction section, usually with an inner diameter ratio of 1.5 to 5, and the specific ratio is adjusted according to actual needs. At the same time, the reactor body has a window 9 for observing the inside of the reactor. The outer circulation gas lift pipe 5 is connected to the discharge port 1 of the reactor body through flanges and pipelines, connected to the compressed gas and controlled to be opened by the valve 6, and connected to the vacuum system and controlled to be opened by the valve 8. The axial aeration head is connected to the compressed gas supply device. ...

Embodiment approach 2

[0036] The multi-tube outer circulation airlift membrane provided by the present invention is mainly composed of a reactor kettle body 2, outer circulation airlift tubes 5 and 13 connected to the reactor, funnel-shaped backflow tube 4, axial aeration nozzle 3, packaged Inorganic membrane elements7,12 within the airlift tube, such as Figure 5 shown. The outer circulation gas lift pipes 5 and 13 are connected to the discharge port 1 of the reactor body through flanges and pipelines, connected to the compressed gas and controlled to be opened by valves 6 and 14, and connected to the vacuum system and controlled to be opened by valves 8 and 11. The axial aeration head is connected to the compressed gas supply device.

[0037] Inorganic membrane elements 7, 12 are packaged in the outer circulation air lift tubes 5, 13 provided by the present invention, and the inorganic membrane elements 7, 12 can be the same kind of membrane elements, or membrane elements with different performan...

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Abstract

An airlift membrane reactor with external ring flow is composed of main body, airlift pipe, inorganic membrane element, and axial aerating head. Said inorganic membrane used as radial gas distributor and separator is sealed in external-circulation airlift pipe and communicated with compressed air source and vacuum system for continuous aeration and reaction. Its aerating efficiency and stirring efficiency can be respectively regulated.

Description

technical field [0001] The invention relates to a new type of membrane reactor, especially an outer circulation air-lift membrane reactor integrated with a cross-flow membrane aeration system and an axial aeration enhanced membrane separation system developed according to the idea of ​​process integration and process intensification. It is used for multi-phase reactions involving gas-liquid, gas-liquid-solid and other gas-liquid two-phases and the reaction and separation in biological fermentation, which belongs to chemical and biochemical equipment. Background technique [0002] The airlift reactor is a contact reaction device for gas-liquid two-phase or gas-liquid-solid three-phase process. Generally, it consists of two different parts, only one part is filled with gas, the vented part is called the ascending part, and the other part is not injected with gas, called the downcomer part. Airlift reactor gas enters the continuous phase in the form of bubbles, which can be a ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J8/00C02F3/08
CPCY02W10/10
Inventor 徐南平景文珩邢卫红
Owner JIANGSU JIUWU HITECH
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