CN102068903A - Array type multi-draft-tube airlift three-phase loop reactor and method for removing odorous waste gas - Google Patents

Array type multi-draft-tube airlift three-phase loop reactor and method for removing odorous waste gas Download PDF

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Publication number
CN102068903A
CN102068903A CN2010105706304A CN201010570630A CN102068903A CN 102068903 A CN102068903 A CN 102068903A CN 2010105706304 A CN2010105706304 A CN 2010105706304A CN 201010570630 A CN201010570630 A CN 201010570630A CN 102068903 A CN102068903 A CN 102068903A
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reactor
airlift
phase loop
guide shell
housing
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CN2010105706304A
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闻建平
宇光海
贾晓强
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Tianjin University
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Tianjin University
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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
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Abstract

The invention relates to an array type multi-draft-tube airlift three-phase loop reactor and a method for removing odorous waste gas. The reactor comprises a lower reaction section and an upper separation section, and the diameter of the reaction section is smaller than that of the separation section; and draft tubes are arranged in a shell of the reaction section, and an air distribution system which is cocentric with the draft tubes is arranged below the draft tubes. The ratio of the cross-sectional area of the draft tubes to the cross-sectional area of the shell is between 0.4 and 0.6. The method for removing the odorous waste gas comprises the steps of: adding Pseudomonas putida WQ-03 immobilized by sodium alginate and an inorganic salt culture medium into the reactor from the top, wherein the using amount of the immobilized thallus is 30 to 40 percent based on the working volume of the airlift three-phase loop biological reactor, and the using amount of the inorganic salt culture medium is 60 to 70 percent based on the working volume of the airlift three-phase loop biological reactor; making the odorous waste gas pass through the air distribution system at the bottom of the airlift three-phase loop biological reactor to enter all the draft tubes of the airlift three-phase loop biological reactor, wherein the inner temperature of the airlift three-phase loop biological reactor is between 25 and 30 DEG C; and outlet gas reaches the emission standard.

Description

Array multiple draft tubes airlift three-phase loop reactor and remove foul waste gas method
Technical field
The present invention relates to a kind of array multiple draft tubes airlift three-phase loop bio-reactor purifier and method of biological cleaning foul waste gas, belong to the stink exhaust gas biological purifying technical field.
Background technology
Chemical industry and petrochemical industry, light industry, weaving, food, pharmacy etc. have become the pillar industry of Chinese society and economic development, in national economy in occupation of critical role.But meanwhile, produce with process in inevitably uncontrollable discharge go out a large amount of such as foul waste gas such as benzene series thing, hydrogen sulfide, organic sulfur compound (methyl mercaptan, ethyl mercaptan, methyl sulfide, methyl disulfide), ammonia, organic amino, organic acid and phenol compounds, if fail to administer effectively and purify, will have a strong impact on health.Biochemical process is based on the metabolic mechanism of microorganism, and consider the own characteristic of foul waste gas and a kind of purification foul waste gas new technology of developing, this technology because of have such as non-secondary pollution produce, advantages such as disposal ability is big, operating cost is low, technology is simple, energy consumption is little, effective, stable operation enjoy favor and pay attention to.Experiment and theoretical research to key equipment and technology thereof in the biochemical process processing foul waste gas process have become the world industry foul waste gas and have purified one of hot subject of research and extension application.Airlift circulating reactor, simple in structure, the mass-and heat-transfer performance is good, low energy consumption, pair cell damage is little etc., and advantage enjoys favor, but the reactor ratio of height to diameter is too high at present, and energy consumption is big, has to be unfavorable for the problem that enlarges.
Summary of the invention
A kind of array of biological cleaning foul waste gas multiple draft tubes low ratio of height to diameter airlift three-phase loop bio-reactor purifier and the method for providing is provided.It is too high that this reactor can overcome traditional airlift reactor ratio of height to diameter, energy consumption is unfavorable for the critical defect that enlarges greatly, and simple in structure, operating flexibility is big, the equipment manufacturing cost that is easy to maximize is cheap, and exhaust-gas treatment is effective can to arrive national grade one discharge standard GB13096-1996.
The objective of the invention is to realize by scheme once:
A kind of array multiple draft tubes airlift three-phase loop reactor; Reactor comprises a lower reaction section and top segregation section, and the diameter of conversion zone is less than the diameter of segregation section; Be provided with guide shell in the conversion zone housing, the guide shell bottom is provided with the gas distribution system that its concentric position is provided with.
The conversion zone housing is a cylinder, and then guide shell is arranged in concentrically ringed mode; When housing is a rectangle, then the cloth gas jets of guide shell and its underpart is pressed rectangular array and is evenly distributed in housing, and then guide shell is arranged in concentrically ringed mode, and guide shell cross-sectional area and housing cross-sectional area ratio are 0.4-0.6.
Described reactor ratio of height to diameter is 3-8.At least 4 of conversion zone housing inner draft tubes, height 2-6 rice.Cylinder conversion zone diameter of the housing 1-20 rice.The length of long sides of rectangle conversion zone housing is a 1-30 rice, and length of short sides is a 1-20 rice.Gas distribution system is single-hole nozzle or jet rose.
Utilize reactor of the present invention remove the biological cleaning foul waste gas method, with the immobilized pseudomonas putida Pseudomonas of sodium alginate putida WQ-03 and minimal medium, add airlift three-phase loop bio-reactor by the airlift three-phase loop bio-reactor top, the consumption of immobilized thallus is the 30-40% of airlift three-phase loop bio-reactor swept volume, and the minimal medium consumption is the 60-70% of airlift three-phase loop bio-reactor swept volume; Foul waste gas enters in each guide shell of airlift three-phase loop bio-reactor through airlift three-phase loop bio-reactor bottom gas distribution system, 25～30 ℃ of the inherent temperature of airlift three-phase loop bio-reactor; Exit gas reaches discharge standard.
N in the described minimal medium 3+Be 7.5-22.5mmol/L, P 5+Be 1.5-4.5mmol/L, Mg 2+Be 0.4-1mmol/L, Ca 2+Be 0.18-0.5mmol/L, Fe 2+Be 0.07-0.2mmol/L; Mn 2+, Zn 2+, Mo 6+, Cu 2+, Co 2+Be trace.N in the described minimal medium 3+By NH 4Cl or (NH 4) 2SO 4A kind of or mix P be provided 5+By KH 2PO 4Or K 2HPO 4A kind of or mix and to provide; Mg 2+By MgSO 47H 2O or MgCl 2A kind of or mix and to provide; Ca 2+By CaCl 2Provide; Fe 2+By FeCl 24H 2O or FeSO 47H 2A kind of or the mixing of O provides; Mn 2+By MnSO 4H 2O provides; Zn 2+By ZnSO 4Or ZnCl 2Provide; Mo 6+By Na 2MoO 47H 2O provides; Cu 2+By CuSO 45H 2O or CuCl 22H 2O provides; Co 2+By CoCl 26H 2O or CoSO 47H 2O provides.
Array multiple draft tubes airlift three-phase loop bio-reactor of the present invention its: the gas distribution system of guide shell and its underpart is array distribution, the gas of nozzle ejection forms in a plurality of guide shells and rises the liquid zone, falls the liquid zone uniformly reaching between guide shell and housing formation between a plurality of guide shells.This design can not only objectively increase the ratio of height to diameter of inside reactor, has improved mass-transfer efficiency, has overcome the difficult problem of the high ratio of height to diameter of traditional airlift reactor, and is easy to amplify, and just amplifies design with the industrialization of reactor.Technology of the present invention is simple, and building and running cost are low, and operating flexibility is big, and is good to the treatment effect of foul waste gas, can reach national grade one discharge standard GB13096-1996.
Description of drawings
Fig. 1 housing is cylindrical apparatus of the present invention schematic diagram.
The A-A schematic cross-section of Fig. 2 Fig. 1.
Among the figure: 1. segregation section; 2 is guide shell; 3 is housing; 4 is nozzle; 5 is conversion zone.
The specific embodiment
The present invention is described in further detail below in conjunction with accompanying drawing:
A kind of array multiple draft tubes airlift three-phase loop reactor; Reactor comprises a lower reaction section and top segregation section, and the diameter of conversion zone is less than the diameter of segregation section; Be provided with guide shell in the conversion zone housing, the guide shell bottom is provided with the gas distribution system that its concentric position is provided with.
The conversion zone housing is a cylinder, and then guide shell is arranged in concentrically ringed mode; When housing is a rectangle, then the cloth gas jets of guide shell and its underpart is pressed rectangular array and is evenly distributed in housing, and then guide shell is arranged in concentrically ringed mode, and guide shell cross-sectional area and housing cross-sectional area ratio are 0.4-0.6.
Described reactor ratio of height to diameter is 3-8.At least 4 of conversion zone housing inner draft tubes, height 2-6 rice.Cylinder conversion zone diameter of the housing 1-20 rice.The length of long sides of rectangle conversion zone housing is a 1-30 rice, and length of short sides is a 1-20 rice.Gas distribution system is single-hole nozzle or jet rose.
Utilize reactor of the present invention remove the biological cleaning foul waste gas method, with the immobilized pseudomonas putida Pseudomonas of sodium alginate putida WQ-03 and minimal medium, add airlift three-phase loop bio-reactor by the airlift three-phase loop bio-reactor top, the consumption of immobilized thallus is the 30-40% of airlift three-phase loop bio-reactor swept volume, and the minimal medium consumption is the 60-70% of airlift three-phase loop bio-reactor swept volume; Foul waste gas enters in each guide shell of airlift three-phase loop bio-reactor through airlift three-phase loop bio-reactor bottom gas distribution system, 25～30 ℃ of the inherent temperature of airlift three-phase loop bio-reactor; Exit gas reaches discharge standard.
The device of embodiment 1 biological cleaning foul waste gas
Array multiple draft tubes low ratio of height to diameter airlift three-phase loop bio-reactor structure such as Fig. 1 mainly comprise the segregation section 1 that the top is set, the guide shell 2 in the housing, reactor shell 3, the gas distribution system 4 of the implication nozzle bottom being installed in.Reactor segregation section diameter is 2.2 meters, and the conversion zone diameter is 1.6 meters.In to establish 7 diameters be 0.42 meter, height is 4 meters a guide shell, it is 5.2 meters that reactor is effectively adorned the liquid height, total ratio of height to diameter only is 3.75, and local high footpath is 9.53.
The reactor inner draft tube is arranged in concentrically ringed mode, when the guide shell of nozzle directly over it sprays foul waste gas toluene, can promote the liquid rising and form a plurality of liquid zones that rise in guide shell; And between adjacent guide shell, between guide shell and housing, fluid moves downward under the effect of reason tube inside and outside differential pressure and fluid inertia, reaches reactor bottom, is inhaled into uniformly then in each guide shell that array distributes, and forms and falls the liquid zone uniformly.
The foul waste gas of need handling falls liquid zone and the immobilized pseudomonas putida Pseudomonas of the sodium alginate putida purification that contacts and be degraded by the reactor middle part along with liquid enters, and always along with fluid drops to reactor bottom, and then be inhaled into guide shell, enter and rise the liquid zone, foul waste gas and liquid and immobilized microorganism form strong mass transfer and course of reaction in rising the liquid zone.Circulation and so forth, the foul gas of being evolved enters segregation section, discharges from exhaust outlet then, reaches national grade one discharge standard GB13096-1996.
The array guide shell airlift three-phase loop bio-reactor purification method step of foul waste gas of the present invention is as follows:
1) with the immobilized pseudomonas putida Pseudomonas of sodium alginate putida WQ-03 and minimal medium, add airlift three-phase loop bio-reactor by the airlift three-phase loop bio-reactor top, the consumption of immobilized thallus is 30～40% of an airlift three-phase loop bio-reactor swept volume, and the minimal medium consumption is 60～70% of an airlift three-phase loop bio-reactor swept volume;
2) with the representative instance of toluene as foul waste gas, concentration 400mg/m 3, with 1.2～2.04m 3The flow of/h enters in each guide shell of airlift three-phase loop bio-reactor through airlift three-phase loop bio-reactor bottom gas distribution system, 25～30 ℃ of the inherent temperature of airlift three-phase loop bio-reactor, every 24h adds minimal medium 0.5～0.7L;
3) make finally that toluene concentration is lower than 40mg/m in the exit gas 3, reach the GB13096-1996 foul waste gas national grade one discharge standard of national regulation.
N in the described minimal medium 3+Be 7.5～22.5mmol/L, P 5+Be 1.5～4.5mmol/L, Mg 2+Be 0.4～1mmol/L, Ca 2+Be 0.18～0.5mmol/L, Fe 2+Be 0.07～0.2mmol/L; Mn 2+, Zn 2+, Mo 6+, Cu 2+, Co 2+Be trace.
N in the described minimal medium 3+By NH 4Cl or (NH 4) 2SO 4A kind of or mix P be provided 5+By KH 2PO 4Or K 2HPO 4A kind of or mix and to provide; Mg 2+By MgSO 47H 2O or MgCl 2A kind of or mix and to provide; Ca 2+By CaCl 2Provide; Fe 2+By FeCl 24H 2O or FeSO 47H 2A kind of or the mixing of O provides; Mn 2+By MnSO 4H 2O provides; Zn 2+By ZnSO 4Or ZnCl 2Provide; Mo 6+By Na 2MoO 47H 2O provides; Cu 2+By CuSO 45H 2O or CuCl 22H 2O provides; Co 2+By CoCl 26H 2O or CoSO 47H 2O provides.
The present invention purifies foul waste gas with immobilization pseudomonas putida Pseudomonas putida WQ-03, and bacterial classification is purchased in Chinese common micro-organisms culture presevation administrative center (CGMCC 1.1130).
The array multiple draft tubes airlift three-phase loop reactor that the present invention proposes and remove foul waste gas method, be described by embodiment, person skilled obviously can be in not breaking away from content of the present invention, spirit and scope to device as herein described with preparation method is changed or suitably change and combination, realize the technology of the present invention.Special needs to be pointed out is, the replacement that all are similar and change apparent to those skilled in the artly, they are regarded as being included in spirit of the present invention, scope and the content.

Claims (10)

1. array multiple draft tubes airlift three-phase loop reactor; It is characterized in that: reactor comprises a lower reaction section and top segregation section, and the diameter of conversion zone is less than the diameter of segregation section; Be provided with guide shell in the conversion zone housing, the guide shell bottom is provided with the gas distribution system that its concentric position is provided with.
2. reactor as claimed in claim 1; It is characterized in that: the conversion zone housing is a cylinder, and then guide shell is arranged in concentrically ringed mode; When housing is a rectangle, then the cloth gas jets of guide shell and its underpart is pressed rectangular array and is evenly distributed in housing, and then guide shell is arranged in concentrically ringed mode, and guide shell cross-sectional area and housing cross-sectional area ratio are 0.4-0.6.
3. reactor as claimed in claim 1; It is characterized in that: the reactor ratio of height to diameter is 3-8.
4. reactor as claimed in claim 1; It is characterized in that: at least 4 of conversion zone housing inner draft tubes, height 2-6 rice.
5. reactor as claimed in claim 1; It is characterized in that: cylinder conversion zone diameter of the housing 1-20 rice.
6. reactor as claimed in claim 1; It is characterized in that: the length of long sides of rectangle conversion zone housing is a 1-30 rice, and length of short sides is a 1-20 rice.
7. reactor as claimed in claim 1; It is characterized in that: gas distribution system is single-hole nozzle or jet rose.
8. utilize the reactor of claim 1 remove foul waste gas method, it is characterized in that: with the immobilized pseudomonas putida Pseudomonas of sodium alginate putida WQ-03 and minimal medium, add airlift three-phase loop bio-reactor by the airlift three-phase loop bio-reactor top, the consumption of immobilized thallus is the 30-40% of airlift three-phase loop bio-reactor swept volume, and the minimal medium consumption is the 60-70% of airlift three-phase loop bio-reactor swept volume; Foul waste gas enters in each guide shell of airlift three-phase loop bio-reactor through airlift three-phase loop bio-reactor bottom gas distribution system, 25～30 ℃ of the inherent temperature of airlift three-phase loop bio-reactor; Exit gas reaches discharge standard.
9. method as claimed in claim 8 is characterized in that N in the described minimal medium 3+Be 7.5-22.5mmol/L, P 5+Be 1.5-4.5mmol/L, Mg 2+Be 0.4-1mmol/L, Ca 2+Be 0.18-0.5mmol/L, Fe 2+Be 0.07-0.2mmol/L; Mn 2+, Zn 2+, Mo 6+, Cu 2+, Co 2+Be trace.
10. method as claimed in claim 9 is characterized in that N in the described minimal medium 3+By NH 4Cl or (NH 4) 2SO 4A kind of or mix P be provided 5+By KH 2PO 4Or K 2HPO 4A kind of or mix and to provide; Mg 2+By MgSO 47H 2O or MgCl 2A kind of or mix and to provide; Ca 2+By CaCl 2Provide; Fe 2+By FeCl 24H 2O or FeSO 47H 2A kind of or the mixing of O provides; Mn 2+By MnSO 4H 2O provides; Zn 2+By ZnSO 4Or ZnCl 2Provide; Mo 6+By Na 2MoO 47H 2O provides; Cu 2+By CuSO 45H 2O or CuCl 22H 2O provides; Co 2+By CoCl 26H 2O or CoSO 47H 2O provides.
CN2010105706304A 2010-12-02 2010-12-02 Array type multi-draft-tube airlift three-phase loop reactor and method for removing odorous waste gas Pending CN102068903A (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102732416A (en) * 2012-06-07 2012-10-17 石药集团中润制药(内蒙古)有限公司 Airlift type loop reactor and method for penicillin fermentation by using the same
CN107002007A (en) * 2014-11-12 2017-08-01 艾尼股份公司 Reaction unit with gas lift type inner loop
CN109647321A (en) * 2019-01-18 2019-04-19 江苏海企技术工程股份有限公司 A kind of energy saving thermal chlorination reaction unit for methane chloride

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1631812A (en) * 2004-12-07 2005-06-29 天津大学 Large-scale array type circulation reactor with multiple draft tubes for treating oil refining wastewater
CN101700468A (en) * 2009-12-02 2010-05-05 天津大学 Apparatus and method of airlift three-phase loop bio-reactor for purifying toluene waste gas

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1631812A (en) * 2004-12-07 2005-06-29 天津大学 Large-scale array type circulation reactor with multiple draft tubes for treating oil refining wastewater
CN101700468A (en) * 2009-12-02 2010-05-05 天津大学 Apparatus and method of airlift three-phase loop bio-reactor for purifying toluene waste gas

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102732416A (en) * 2012-06-07 2012-10-17 石药集团中润制药(内蒙古)有限公司 Airlift type loop reactor and method for penicillin fermentation by using the same
CN107002007A (en) * 2014-11-12 2017-08-01 艾尼股份公司 Reaction unit with gas lift type inner loop
CN107002007B (en) * 2014-11-12 2021-03-09 艾尼股份公司 Reaction device with air-lift type internal circulation
CN109647321A (en) * 2019-01-18 2019-04-19 江苏海企技术工程股份有限公司 A kind of energy saving thermal chlorination reaction unit for methane chloride

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Application publication date: 20110525