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Air-lift membrane filtration complete equipment

A complete set of devices and membrane filtration technology, applied in the direction of total evaporation, can solve the problems of liquid entrainment and solvent recovery without considering high-pressure tail gas energy reuse, and achieve the effects of reducing membrane pollution, saving energy costs, and improving concentration efficiency.

Active Publication Date: 2010-11-24
南京工大釜鼎能源技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although these reactors designed for biochemical reactions have a separation function, they are usually operated at lower pressures or achieved by negative pressure suction, so the energy reuse of high-pressure exhaust gas, liquid entrainment, and solvent recovery are not considered. question

Method used

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Examples

Experimental program
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Effect test

Embodiment 1

[0027] Embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0028] The air-lift membrane filtration complete set provided by the present invention consists of membrane filtration system (kettle body 2, circulation pipe 9, membrane module 10), feed system (feed pump A-1), gas supply system (compressed gas source C -1, gas flow meter C-2), tail gas solvent recovery system (tail gas condenser D-1, gas-liquid separation tank D-2, adsorption column D-3, dryer D-4) and energy recovery system (energy recovery device E-1) composition, such as figure 1 shown. The kettle body 2 is divided into two parts, the upper cylinder body is a circulation area, and the lower vertebral body is a settlement area; the circulation pipe 9 is installed at the side arm of the kettle body 2 and communicates with the kettle body; the upper end of the kettle body 2 is provided with a feed port 6, The exhaust port 7 has a discharge port 1 a...

Embodiment 2

[0032] In this example, the height-to-diameter ratio of the reactor body circulation area of ​​the air-lift membrane filtration complete set is 5, the angle between the sedimentation slope of the reactor body settling area and the horizontal plane is 60°, the height of the circulation pipe is 2 / 5 of the height of the reactor body circulation area, and the inner diameter of the circulation pipe is 1 / 2 of the inner diameter of the systemic circulation area. Bovine serum albumin (molecular weight 67000Da) solution is used as the filtration concentration system, and 19-channel ZrO with a pore size of 50nm is selected. 2 Ceramic membranes are used as membrane elements. First adjust the pH of the bovine serum albumin solution to 4.7, add the bovine serum albumin solution with a concentration of 2g / L into the air-lift membrane filtration complete set, and then pass in compressed gas to adjust the transmembrane pressure to 0.3MPa and the gas velocity on the membrane surface 0.15m / s, ...

Embodiment 3

[0034] In this case, the height-to-diameter ratio of the reactor body circulation area of ​​the air-lift membrane filtration complete set is 8, the angle between the sedimentation slope of the reactor body settling area and the horizontal plane is 60°, the height of the circulation pipe is 3 / 5 of the height of the reactor body circulation area, and the inner diameter of the circulation pipe is 1 / 3 of the inner diameter of the systemic circulation area. Chicken ovalbumin (molecular weight 43000Da) solution was used as the filtration and concentration system, and Al with a pore size of 10.0nm was selected. 2 o 3 A ceramic membrane single tube is used as the membrane element. First adjust the pH of the ovalbumin solution to 10.0, add the ovalbumin solution with a concentration of 300mg / L into the air-lift membrane filtration complete set, and then pass in compressed air to adjust the transmembrane pressure to 0.8MPa and the gas velocity on the membrane surface 0.3m / s, for posit...

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Abstract

The invention relates to air-lift membrane filtration complete equipment. The air-lift membrane filtration complete equipment consists of a membrane filtration system, a feed pump, a gas supply system, a tail gas solvent reclaiming system and an energy reclaimer, wherein the membrane filtration system consists of a kettle body 2, a circulating pipe 9 and a membrane component 10; the gas supply system consists of a compressed gas source and a gas flowmeter; the tail gas solvent reclaiming system consists of a tail gas condenser, a gas-liquid separating tank, an adsorption column and a dryer; in the kettle body, an upper cylinder body is a circulating area and a lower cone body is a sedimentation area; the circulating pipe is arranged on the side wall of the kettle body; the membrane component is encapsulated in the circulating pipe and is connected with the compressed gas source; a transmembrane pressure and a membrane surface gas speed are controlled by adjusting a gas inlet and outlet valve of the kettle body, so that positive pressure filtration concentration is realized; membrane flux is improved through the strengthening effect of gas-liquid two-phase flow; and the tail gas solvent reclaiming system can reclaim air-lift solvent and convert tail gas pressure into electric energy or mechanical energy. The air-lift membrane filtration complete equipment has the advantages of low energy consumption, high reclaiming efficiency, mild filtration condition and the like.

Description

technical field [0001] The invention relates to a complete set of air-lift membrane filtration device, which integrates membrane filtration system, material supply system, gas supply system, tail gas solvent recovery system and energy recovery system, and is especially suitable for high pressure (0.3-2.5MPa) Continuous filtration and concentration of extracts of biochemical agents. technical background [0002] In biochemical pharmaceutical technology, modern fermentation technology is at the center. The production of most biochemical preparations is realized through fermentation engineering. Products suitable for industrial system fermentation include antibiotics, amino acids, enzyme preparations, steroid hormones, single-cell proteins, etc. The fermented liquid obtained through fermentation needs to go through a series of subsequent treatment processes such as filtration, ion exchange, adsorption, elution, extraction, and distillation to finally obtain the product, which o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D61/36
Inventor 景文珩石风强邢卫红徐南平
Owner 南京工大釜鼎能源技术有限公司
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