CN105441323B - The vertical reactor of immobilised enzymes is arranged based on porous ceramics step - Google Patents
The vertical reactor of immobilised enzymes is arranged based on porous ceramics step Download PDFInfo
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Abstract
A kind of vertical reactor for arranging immobilised enzymes based on porous ceramics step,There is the column reaction cavity being set on the base,Cover the cover board of port on it,At there is air admission hole on pedestal,There is absorbing liquid import at the top of column reaction cavity,Bottom is provided with reacting product outlet,Inside is provided with Strong oxdiative adsorbed film and porous plate from the bottom to top,It is provided with perspex bar along the central axis in column reaction cavity,The upper end connecting cover plate of perspex bar,Lower end connects porous plate,The fixed enzyme vector structure of two-stage or more is provided in column reaction cavity above porous plate,It is respectively arranged with pressure sensor in column reaction cavity,PH electrodes,Gas sampling air intake duct and gas sampling muffler,Corresponding pressure sensor is respectively formed on cover board,PH electrodes,The pressure signal delivery outlet of gas sampling air intake duct and gas sampling muffler,PH electrode delivery outlets,Suction hole and return-air hole.The present invention significantly carries CO2The reaction rate of absorption reduces energy consumption.
Description
Technical field
The present invention relates to one kind for CO in flue gas after burning2The device of trapping.Immobilization is utilized more particularly to a kind of
Carbonic anhydrase accelerates CO in flue gas2What is absorbed arranges the vertical reactor of immobilised enzymes based on porous ceramics step.
Background technology
CO2Trapping and Plugging Technology Applied can effectively solve the problems, such as carbon emission and greenhouse effects, CO in flue gas after burning2Catch
Collection is but excessively high there are cost and the problems such as energy consumption is big mainly by physics and chemical absorption method.Carbonic anhydrase can be by CO2Soon
Fast catalytic conversion becomes HCO3 -, reaction rate can be by 6.2 × 10-3s-1It is increased to 106s-1, it is the most effective CO found so far2
It is hydrated enzyme catalyst.By the CO in flue gas2It is come out using CA enzymatic absorption and separations, CO can be effectively facilitated2Absorption, accelerate CO2
Trapping rate, be the promising CO of tool2Trap application technology.Enzyme is volatile under the conditions ofs high temperature, strong acid-base and organic solvent etc.
It is living, it limits it and is widely used.Immobilization technology can not only be such that enzyme is easily isolated, and also be conducive to the raising of enzyme stability, and solid
Surely changing enzyme has definite shape and mechanical strength, can be loaded in reactor, be convenient for continuous production.Utilize immobilization carbonic anhydrase
CO after reactor trapping burning2The problem of being primarily present be：Due to containing dust particles and SO in flue gas2Equal pollutants, drop
The vigor of low immobilised enzymes, and hinder CO2Mass transfer in absorbing liquid absorbs；Absorbing liquid absorbs CO in flue gas2Reaction rate it is low
And high energy consumption；In gas liquid two-phase flow, CO2It is short in the flow of reactor, it cannot fully be contacted with immobilised enzymes, catalysis reaction effect
Rate is low；To improve reaction rate, magnetic stirring apparatus is arranged in reactor, but increase energy consumption and system complex；It cannot receive online
Collect effective response parameter, reaction process control is not easy to control.
Invention content
The technical problem to be solved by the invention is to provide one kind capable of solving CO after burning2The existing CO of trapping2It absorbs
The vertical reactor that immobilised enzymes is arranged based on porous ceramics step for the problems such as rate is low and high energy consumption.
The technical solution adopted in the present invention is：A kind of vertical response for arranging immobilised enzymes based on porous ceramics step
Device includes pedestal, the transparent column reaction cavity being set on the base and covers the cover board in column reaction cavity upper port,
The formation penetrated through on the pedestal has the air admission hole for inputting extraneous gas to column reaction cavity, the column reaction cavity
Top sidewall on be provided with absorbing liquid import, reacting product outlet is provided in bottom sidewall, in the column reaction cavity
Bottom set gradually the Strong oxdiative adsorbed film and porous being useful for the extraneous gas filtering entered from air admission hole from the bottom to top
Plate, is provided with perspex bar along the central axis in column reaction cavity, the upper end connecting cover plate of the perspex bar,
Lower end connects porous plate, and the top that porous plate is located in the column reaction cavity is provided with two-stage or more by perspex bar
Fixed enzyme vector structure for carrying out catalysis reaction to entering the flue gas in column reaction cavity, the column reaction cavity
It is inside respectively arranged with pressure sensor, pH electrodes, gas sampling air intake duct and gas sampling muffler, distinguishes shape on the cover board
At the pressure signal delivery outlet being useful for through pressure sensor output lead, for through the pH electrode output leads
PH electrode delivery outlets, the suction hole being connected with the gas sampling air intake duct, and with the gas sampling muffler phase
The return-air hole of connection.
The scale for reading inside liquid level is provided on the lateral wall of the column reaction cavity.
The outside of the column reaction cavity, which also covers, to be useful for by recycling water management column reaction cavity internal temperature
Water-bath sleeve, be provided with water outlet on the upper end side wall of the water-bath sleeve, water inlet be provided in bottom side of the wall.
Bottom in the column reaction cavity is provided with 2 layers or more of Strong oxdiative adsorbed film.
The fixed enzyme vector structure includes porous ceramic bodies, and immobilization is loaded in the hole of the porous ceramic bodies
Enzyme is separately provided for preventing the immobilization in porous ceramics body opening on the upper surface and lower face of the porous ceramic bodies
The upper filter screen and lower filter screen that enzyme is lost in.
The fixed enzyme vector structure is sleeved on perspex bar, and by being arranged on upper filter screen upper surface and covering
Upper resin ring on the perspex bar, and be arranged on lower filter screen lower face and be sleeved on the perspex bar
On lower resin ring be fixed on the machine glass bar.
The Strong oxdiative adsorbed film and porous plate are fixed by the resin ring being sleeved on the perspex bar.
The air admission hole is provided with 2 in the pedestal, and the air admission hole is positioned at one end of column reaction cavity
Form the flared structure of flaring.
Pressure signal delivery outlet, pH electrodes delivery outlet, suction hole and the return-air hole is to be provided separately on the cover board,
In, correspondence is closed at the madial wall of column reaction cavity on the cover board for pressure signal delivery outlet, suction hole and the return-air hole
Setting, the pH electrodes delivery outlet corresponds on the cover board to be arranged at the central axes for closing on column reaction cavity.
The vertical reactor that immobilised enzymes is arranged based on porous ceramics step of the present invention, for CO after burning2Trapping,
Strong oxdiative adsorbed film and porous plate are arranged in bottom, effectively remove the dust particles and SO in flue gas2Equal pollutants, enhancing gas-liquid are disturbed
It is dynamic, promote CO2Mass transfer absorbs, and is arranged in conversion zone step based on the immobilised enzymes of porous ceramics, significantly carries CO2The reaction of absorption
Rate reduces energy consumption, extends immobilised enzymes and CO in flue gas2Contact area and time of contact, improve enzymatic reaction efficiency, have
It is detached conducive to product, effecting reaction parameter can be collected online, reaction process is easy to control.
Description of the drawings
Fig. 1 is that the present invention is based on the overall structure diagrams of the vertical reactor of porous ceramics step arrangement immobilised enzymes；
Fig. 2 is the enlarged diagram of fixed enzyme vector structure division in Fig. 1；
Fig. 3 is the upward view of Fig. 1；
Fig. 4 is the vertical view of Fig. 1.
In figure：
1：Pedestal 2：Water-bath sleeve
3：Column reaction cavity 4：Cover board
5：Air admission hole 6：Strong oxdiative adsorbed film
7：Porous plate 8：Fixed enzyme vector structure
81：Porous ceramic bodies 82：Upper filter screen
83：Lower filter screen 9：Resin ring
10a：Upper resin ring 10b：Lower resin ring
11：Perspex bar 12：Water inlet
13：Water outlet 14：Reacting product outlet
15：Absorbing liquid import 16：Scale
17：Pressure sensor 18：PH electrodes
19：Gas sampling air intake duct 20：Gas sampling muffler
21a：Pressure signal delivery outlet 21b：PH electrode delivery outlets
21c：Suction hole 21d：Return-air hole
Specific implementation mode
With reference to embodiment and attached drawing to the vertical response for arranging immobilised enzymes based on porous ceramics step of the present invention
Device is described in detail.
As shown in Figure 1, the vertical reactor for arranging immobilised enzymes based on porous ceramics step of the present invention, includes pedestal
1, column reaction cavity 3 on pedestal 1 is set and cover the cover board 4 in 3 upper port of column reaction cavity, the column reaction chamber
Body 3 is made of transparent organic glass.The formation penetrated through on the pedestal 1 has for inputting external gas to column reaction cavity 3
The air admission hole 5 of body is provided with absorbing liquid import 15 in the top sidewall of the column reaction cavity 3, is provided in bottom sidewall
Reacting product outlet 14, the bottom in the column reaction cavity 3 is set gradually from the bottom to top to be useful for entering from air admission hole 5
Extraneous gas filtering Strong oxdiative adsorbed film 6 and porous plate 7, the bottom in the column reaction cavity 3 be provided with 2 layers with
On Strong oxdiative adsorbed film 6, perspex bar 11, organic glass are provided with along the central axis in column reaction cavity 3
The upper end connecting cover plate 4 of glass stick 11, lower end connects porous plate 7, as shown in Figure 1, the Strong oxdiative adsorbed film 6 and porous plate 7
It is that the logical resin ring 9 being sleeved on the perspex bar 11 is fixed.
The Strong oxdiative adsorbed film 6 is dynamical compound Strong oxdiative modified ceramic material, and surface has been covered with cellular
Magnetic pole aperture, can adsorb the dust particles in flue gas rapidly, destroy SO2The molecular structure of equal gases, is oxidized to CO2And water.It is logical
The purified flue gas of too strong 6 adsorbed film of oxidation-adsorption film is broken into more bubbles, enhancing gas-liquid disturbance by porous plate 7 again.
Perspex bar 11 two-stage or more is provided with positioned at the top of porous plate 7 in the column reaction cavity 3 to use
In the fixed enzyme vector structure 8 for carrying out catalysis reaction to entering the flue gas in column reaction cavity 3, the column reaction cavity
Pressure sensor 17, pH electrodes 18, gas sampling air intake duct 19 and gas sampling muffler 20, the lid are respectively arranged in 3
The pressure signal delivery outlet 21a being useful for through 17 output lead of pressure sensor is respectively formed on plate 4, for through described
PH electrode delivery outlet 21b, the suction hole 21c being connected with the gas sampling air intake duct 19 of 18 output lead of pH electrodes,
And the return-air hole 21d being connected with the gas sampling muffler 20.Wherein, the pressure sensor 17 and pH electrodes 18 divide
It is not connect with external data acquisition system, the gas sampling air intake duct 19 and gas sampling muffler 20 are infrared with outside respectively
CO2Analyzer connects, and forms CO2Gas monitoring system.
The column reaction cavity 3 is made of transparent organic glass, can clear view to inside reactor, and it is described
Column reaction cavity 3 lateral wall on be provided with scale 16 for reading inside liquid level.
The outside of the column reaction cavity 3, which also covers, to be useful for by recycling 3 inside temperature of water management column reaction cavity
The water-bath sleeve 2 of degree is provided with water outlet 13 on the upper end side wall of the water-bath sleeve 2, water inlet is provided in bottom side of the wall
12.The water inlet 12 and water outlet 13 are separately connected outer loop water-bath system, by recycling the temperature in water management reactor
Degree.
As shown in Fig. 2, the fixed enzyme vector structure 8 includes porous ceramic bodies 81, the porous ceramic bodies 81
Hole in be loaded with immobilised enzymes, be separately provided for preventing on the upper surface and lower face of the porous ceramic bodies 81 porous
The upper filter screen 82 and lower filter screen 83 that immobilised enzymes in 81 hole of ceramic body is lost in, by being arranged in immobilization in porous ceramic bodies 81
The quantity of enzyme granulate, which changes, carries enzyme amount size, the immobilised enzymes based on porous ceramic bodies 81 along axis from down to up, carry enzyme amount by
Become smaller greatly, is arranged in conversion zone step.
The immobilised enzymes is fixed by the sodium alginate being modified by chemistry and cross-linking method, the immobilization carbonic anhydride of preparation
Enzyme is the gel particle for having certain mechanical strength, grain size 2mm.
The fixed enzyme vector structure 8 is sleeved on perspex bar 11, and by being arranged in 82 upper surface of upper filter screen
Upper resin ring 10a that is upper and being sleeved on the perspex bar 11, and be arranged on 83 lower face of lower filter screen and be sleeved on institute
Lower resin ring 10b on the perspex bar 11 stated is fixed on the machine glass bar 11.Reach and has been fixed by physical force
The purpose of fixed enzyme vector structure 8.
As shown in figure 3, the air admission hole 5 is provided with 2 in the pedestal 1, the air admission hole 5 is anti-positioned at column
One end of cavity 3 is answered to form the flared structure of flaring, flue gas is passed through reactor by air admission hole 5.
As shown in figure 4, pressure signal delivery outlet 21a, pH electrode delivery outlet 21b, suction hole 21c and the return-air hole
21d is provided separately on cover board 4, wherein pressure signal delivery outlet 21a, suction hole 21c and the return-air hole 21d is being covered
It is arranged at the corresponding madial wall for closing on column reaction cavity 3 on plate 4, pH electrodes delivery outlet 21b correspondences on cover board 4 are closed on
It is arranged at the central axes of column reaction cavity 3.
The liquid level H of absorbing liquid before reaction can be read by the scale 16 in 3 outside of column reaction cavity0With liquid after reaction
The height H in face, the volume of mixed gas bubble can be indicated with void fraction β in reaction system, such as following formula：
β=(H-H0)/H0× 100%
In an embodiment of the present invention, a diameter of 50mm of Strong oxdiative adsorbed film 6, the thickness of single layer Strong oxdiative adsorbed film 6
For 5mm, two layers of adsorbed film is arranged in 3 bottom of column reaction cavity；Porous plate 7 diameter 50mm, thickness 8mm are uniformly distributed 300
Aperture, aperture 1.5mm × 1.5mm；A diameter of 50mm of porous ceramic bodies 81, high 15mm, 64 column apertures of surface alignment are small
Hole internal diameter is 4mm.
Symmetrical as shown in figure 3, pedestal arrangement is there are two air admission hole 5, air admission hole is flaring mode, connection it is external into
The hole diameter of gas system is 3mm, is passed through in the hole of cylindrical reactor cavity through being 5mm.
As shown in figure 4, four holes on cover board are arranged apart, be conducive to the accurate measurement of response parameter.Connect pH electrodes
Aperture 21b close to central axes, internal diameter 10mm, the aperture 21a internal diameters for connecting pressure sensor are 5mm, connect infrared CO2Point
The aperture 21c and 21d of analysis system is close to reactor wall, hole diameter 2mm.
Column reaction cavity 3 is whole to be made of organic glass, water-bath casing inner diameter 90mm, length 420mm, column reaction
Cavity internal diameter 50mm, length 520mm, dischargeable capacity 1.02L；Cover sheet thickness 20mm, 4 thickness 50mm of pedestal, perspex bar 11
Diameter and resin ring internal diameter be 4mm.
It is trapped using the vertical reactor based on porous ceramics step arrangement immobilised enzymes of the present invention of the present invention
The experiment of simulated flue gas, studies have shown that catalytic absorption CO2Significant effect, 10% reaction time complete 80.2% catalysis
Reaction, reaction start catalytic absorption CO in 30s2Amount be the 4.2 × 10 of blank test3Times, immobilised enzymes is continuous in reactor
Experimental implementation 6 times remains to keep 50.4% enzyme activity.
Claims (7)
1. a kind of vertical reactor for being arranged immobilised enzymes based on porous ceramics step is included pedestal (1), is arranged in pedestal
(1) transparent column reaction cavity (3) on and the cover board (4) in column reaction cavity (3) upper port is covered, which is characterized in that
The formation penetrated through on the pedestal (1) has the air admission hole (5) for inputting extraneous gas to column reaction cavity (3), the column
It is provided with absorbing liquid import (15) in the top sidewall of shape reaction cavity (3), reacting product outlet is provided in bottom sidewall
(14), the bottom in the column reaction cavity (3) is set gradually from the bottom to top is useful for from the outside that air admission hole (5) enters
The Strong oxdiative adsorbed film (6) and porous plate (7) of gas filtration, 7 diameter 50mm of the porous plate are uniformly distributed 300 holes, along column
Perspex bar (11), the upper end connection of the perspex bar (11) are provided on central axis in shape reaction cavity (3)
Cover board (4), lower end connect porous plate (7), and the top that porous plate (7) is located in the column reaction cavity (3) passes through organic glass
Glass stick (11) is provided with immobilised enzymes of the two-stage or more for carrying out catalysis reaction to entering the flue gas in column reaction cavity (3)
Carrier structure (8), the column reaction cavity (3) is interior to be respectively arranged with pressure sensor (17), pH electrodes (18), gas sampling
Air intake duct (19) and gas sampling muffler (20) are respectively formed on the cover board (4) and are useful for running through pressure sensor (17)
The pressure signal delivery outlet (21a) of output lead, for the pH electrode delivery outlets through described pH electrodes (18) output lead
(21b), the suction hole (21c) being connected with the gas sampling air intake duct (19), and with the gas sampling muffler
(20) return-air hole (21d) being connected；
The fixed enzyme vector structure (8) includes porous ceramic bodies (81), and the hole of the porous ceramic bodies (81) contains
It is 2mm to have immobilised enzymes, the immobilised enzymes grain size, on the upper surface and lower face of the porous ceramic bodies (81) respectively
It is provided with the upper filter screen (82) and lower filter screen (83) for preventing the immobilised enzymes in porous ceramic bodies (81) hole to be lost in, it is described more
A diameter of 50mm of hole ceramic body (81), high 15mm, 64 columnar holes of surface alignment, hole internal diameter is 4mm, porous by being arranged in
The quantity of ceramic body (81) interior immobilized enzyme particle, which changes, carries enzyme amount size, based on the immobilised enzymes of porous ceramic bodies (81) along axis
Line from down to up, carries enzyme amount from large to small, is arranged in conversion zone step；
The fixed enzyme vector structure (8) is sleeved on perspex bar (11), and by being arranged in upper filter screen (82) upper end
On face and the upper resin ring (10a) that is sleeved on the perspex bar (11), and it is arranged on lower filter screen (83) lower face
And the lower resin ring (10b) being sleeved on the perspex bar (11) is fixed on the perspex bar (11).
2. the vertical reactor according to claim 1 for arranging immobilised enzymes based on porous ceramics step, which is characterized in that
The scale (16) for reading inside liquid level is provided on the lateral wall of the column reaction cavity (3).
3. the vertical reactor according to claim 1 for arranging immobilised enzymes based on porous ceramics step, which is characterized in that
The outside of the column reaction cavity (3), which also covers, to be useful for by recycling water management column reaction cavity (3) internal temperature
Water-bath sleeve (2) is provided with water outlet (13) on the upper end side wall of the water-bath sleeve (2), is provided with into water in bottom side of the wall
Mouth (12).
4. the vertical reactor according to claim 1 for arranging immobilised enzymes based on porous ceramics step, which is characterized in that
Bottom in the column reaction cavity (3) is provided with 2 layers or more of Strong oxdiative adsorbed film (6).
5. the vertical reactor according to claim 1 for arranging immobilised enzymes based on porous ceramics step, which is characterized in that
The Strong oxdiative adsorbed film (6) and porous plate (7) is carried out by the resin ring (9) being sleeved on the perspex bar (11)
It is fixed.
6. the vertical reactor according to claim 1 for arranging immobilised enzymes based on porous ceramics step, which is characterized in that
The air admission hole (5) is provided with 2 in the pedestal (1), and the air admission hole (5) is positioned at column reaction cavity (3)
One end forms the flared structure of flaring.
7. the vertical reactor according to claim 1 for arranging immobilised enzymes based on porous ceramics step, which is characterized in that
Pressure signal delivery outlet (21a), pH electrodes delivery outlet (21b), suction hole (21c) and the return-air hole (21d) is in cover board (4)
Upper is to be provided separately, wherein pressure signal delivery outlet (21a), suction hole (21c) and the return-air hole (21d) is in cover board (4)
Upper correspondence, which is closed at the madial wall of column reaction cavity (3), to be arranged, and the pH electrodes delivery outlet (21b) is corresponding on cover board (4)
It closes at the central axes of column reaction cavity (3) and is arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511034268.8A CN105441323B (en) | 2015-12-31 | 2015-12-31 | The vertical reactor of immobilised enzymes is arranged based on porous ceramics step |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511034268.8A CN105441323B (en) | 2015-12-31 | 2015-12-31 | The vertical reactor of immobilised enzymes is arranged based on porous ceramics step |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105441323A CN105441323A (en) | 2016-03-30 |
| CN105441323B true CN105441323B (en) | 2018-08-10 |
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| CA2353307A1 (en) * | 2001-07-13 | 2003-01-13 | Carmen Parent | Device and procedure for processing gaseous effluents |
| CA2394073A1 (en) * | 2002-07-16 | 2004-01-16 | Cascades Inc., Recherche Et Developpement | Process for synthesizing precipitated calcium carbonate using an enzyme |
| DE102008004725A1 (en) * | 2008-01-16 | 2009-07-23 | Evonik Goldschmidt Gmbh | Process for the heterogeneously catalyzed preparation of carboxylic acid derivatives |
| US7998714B2 (en) * | 2008-09-29 | 2011-08-16 | Akermin, Inc. | Process for accelerated capture of carbon dioxide |
| EP2446029B1 (en) * | 2009-06-26 | 2016-08-10 | Novozymes North America, Inc. | Heat-stable carbonic anhydrases and their use |
| CN101632900B (en) * | 2009-08-11 | 2012-06-27 | 孙祥章 | High-efficiency gas purification bioreactor based on complex enzyme immobilization technology and purification method thereof |
| CA2861245A1 (en) * | 2012-01-17 | 2013-07-25 | Co2 Solutions Inc. | Integrated process for dual biocatalytic conversion of co2 gas into bio-products by enzyme enhanced hydration and biological culture |
| CN104651231B (en) * | 2015-02-02 | 2016-08-24 | 上海立足生物科技有限公司 | A kind of immobilized enzyme screen cloth reactor and application thereof |
| CN205329061U (en) * | 2015-12-31 | 2016-06-22 | 天津大学 | Vertical reactor based on immobilized enzyme is arranged to porous ceramic step |
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Address after: 300350 Haijing garden, Haihe Education Park, Jinnan, Tianjin, 135, Tianjin University. Patentee after: Tianjin University Address before: 300072 Tianjin City, Nankai District Wei Jin Road No. 92 Patentee before: Tianjin University |
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