CN1994547A - Air lift type external loop reactor with two spray nozzles - Google Patents
Air lift type external loop reactor with two spray nozzles Download PDFInfo
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- CN1994547A CN1994547A CN 200610156158 CN200610156158A CN1994547A CN 1994547 A CN1994547 A CN 1994547A CN 200610156158 CN200610156158 CN 200610156158 CN 200610156158 A CN200610156158 A CN 200610156158A CN 1994547 A CN1994547 A CN 1994547A
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- Prior art keywords
- riser
- down pipe
- gas
- nozzle
- tube
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- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12M—APPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY; APPARATUS FOR CULTURING MICROORGANISMS FOR PRODUCING BIOMASS, FOR GROWING CELLS OR FOR OBTAINING FERMENTATION OR METABOLIC PRODUCTS, i.e. BIOREACTORS OR FERMENTERS
- C12M29/00—Means for introduction, extraction or recirculation of materials, e.g. pumps
- C12M29/06—Nozzles; Sprayers; Spargers; Diffusers
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- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12M—APPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY; APPARATUS FOR CULTURING MICROORGANISMS FOR PRODUCING BIOMASS, FOR GROWING CELLS OR FOR OBTAINING FERMENTATION OR METABOLIC PRODUCTS, i.e. BIOREACTORS OR FERMENTERS
- C12M29/00—Means for introduction, extraction or recirculation of materials, e.g. pumps
- C12M29/18—External loop; Means for reintroduction of fermented biomass or liquid percolate
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Abstract
The invention relates to a dual-ejector gas lifting outer annular reactor, formed by lifting tube (9), descending tube (3), liquid inlet (7), liquid outlet (11), gas inlet (1) and gas outlet (8), wherein the descending tube (3) via upper circulate incline tube (6) is through to the upper part of lifting tube (9); the lower part of descending tube (3) via lower circulate incline tube (2) is through to the lower part of lifting tube (9); the descending tube (3) contains descending tube ejector (4); the gas inlet (5) of descending tube is through to the ejector (4) of descending tube; the top of lifting tube (9) has gas outlet (8) and liquid inlet (7); the lower part of lifting tube (9) has ejector (10) of lifting tube; the bottom of lifting tube (9) is taper structure; the bottom of lifting tube (9) has liquid outlet (11) and gas inlet (1) of lifting tube; the gas inlet (1) is through to the ejector (10). The invention has simple structure and low cost.
Description
Technical field
The present invention is a kind of external loop reactor, relates in particular to a kind of air lift type external loop reactor with two spray nozzles that is applicable to chemical industry and association area thereof.
Background technology
Circulation flow reactor can be divided into three kinds of gas stripping type circulation flow reactor, injecting type circulation flow reactor and propeller formula circulation flow reactors by the type of drive fluid.Lift type external loop reactor is by the derivative a kind of novel gas-liquid reactor of bubble tower, have simple in structure, advantage such as the flow field shear stress is little, cost is low, processing ease, operating cost are low, thereby be widely used in fields such as chemical industry, food, pharmacy, the energy and environmental protection.
Lift type external loop reactor is in amplification process, and down pipe can increase and increases with riser.In addition, traditional lift type external loop reactor just designs gas nozzle the bottom at riser singlely, effective contact area of gas-liquid only being confined in the riser, and liquid flow is only arranged in the down pipe, undoubtedly is to carry out gas-liquid transmission and reaction in this zone.Particularly distinct issues are, for the biochemistry and the wastewater treatment process of some aerobic reactions, because active medium overstand in down pipe, can be dead because of anoxic, cause technology to amplify failure.
Forefathers have developed the lift type external loop reactor of numerous species.Wherein: Chinese patent (ZL200520070555.X) discloses a kind of multitube external loop reactor, though this external loop reactor can avoid traditional mechanical agitation type ventilation reactor use in problem the problem includes: this patent of some problems still do not solve and only liquid flow arranged in the down pipe and can't carry out gas-liquid transmission and reaction problem.
Summary of the invention
The objective of the invention is to overcome deficiency and problem in the background technology, provide a kind of gas liquid contacting efficiency height, applied widely, simple in structure, cost is low, easy-operating air lift type external loop reactor with two spray nozzles.
The object of the present invention is achieved like this, and it is made up of riser, down pipe, liquid inlet, liquid outlet, gas access and gas vent.It is characterized in that down pipe top communicates with riser top by epimere circulation inclined tube, the down pipe bottom communicates with the riser bottom by hypomere circulation inclined tube, the down pipe nozzle is housed in the down pipe, the down pipe gas access communicates with the down pipe nozzle, there are gas vent and liquid inlet in the riser top, and there is the riser nozzle bottom, the tapered structure in riser bottom in the riser, there are liquid outlet and riser gas access in the riser bottom, and the riser gas access communicates with the riser nozzle.
Be furnished with the distribution of gas hole on aforesaid riser nozzle or the down pipe nozzle.
Liquid flows in the riser by the liquid inlet, gas then enters in the riser by the riser nozzle through the riser gas access, carry out mass transfer with the liquid in the riser, conduct heat and reaction, and carry liquid and move upward, after the gas-liquid separation of riser top, gas is discharged by the gas vent on riser top, liquid then enters down pipe through epimere circulation inclined tube, in down pipe with the mixed gases that enters through down pipe gas access and down pipe nozzle in the down pipe, simultaneously, carry out gas-liquid transmission and reaction, and move downward together, enter in the riser by hypomere circulation inclined tube, the liquid of riser bottom is discharged from liquid outlet.
The present invention compared with prior art has the following advantages:
1. the present invention has overcome traditional lift type external loop reactor only designs a nozzle in the bottom of riser defective, the effective contact area that makes gas-liquid is from only being confined to be extended to riser and the whole zone of down pipe in the riser, significantly increased the time of contact of liquid and gas, simultaneously, through the gas that the down pipe nozzle enters in the down pipe liquid velocity in the down pipe is increased again by the down pipe gas access, cause the cycling rate of liquid between riser and down pipe to increase, effectively improved the process throughput of circulation flow reactor;
2. the present invention is owing to respectively design a nozzle in riser bottom and down pipe top, thereby can be according to the actual process requirement, regulate the gas flow that enters riser gas access and down pipe gas access respectively, make the fluid in riser and the down pipe be in identical or different flow pattern, in addition, this method for designing can also solve effectively that active medium causes the hypoxia death problem at down pipe internal cause overstand in some aerobic reactions, is particularly suitable for being applied to biochemistry and wastewater treatment process;
3. the riser nozzle adopts horizontal loops tubular gas distributor, on distributor, tangentially be evenly distributed with the distribution of gas hole obliquely, this type distributor can effectively reduce bubble size, significantly increase the lifting force of gas to liquid, cut down the consumption of energy, simultaneously, also can effectively improve gas-liquid mixed and contacting efficiency in the riser;
4. the down pipe nozzle also adopts horizontal loops tubular gas distributor, with riser nozzle difference is that company's muscle number between distribution of gas hole direction and the inner and outer ring is different, the use of distributor has not only guaranteed gas-liquid transmission and the reaction in the down pipe, and quickened liquid circulation between riser and the down pipe, effectively reduced the time of staying of liquid in down pipe;
5. communicate by epimere circulation inclined tube and hypomere circulation inclined tube between riser and the down pipe, circulation inclined tube structure can effectively reduce the resistance of liquid circulation time between riser and down pipe, reduces the energy loss in the circulation flow reactor;
6. pyramidal structure is adopted in the riser bottom, can effectively reduce liquid and be deposited on the riser bottom for a long time, helps the discharge of liquid.
Description of drawings
Fig. 1 is the air lift type external loop reactor with two spray nozzles structural representation
Fig. 2 is a riser nozzle arrangements schematic diagram
Fig. 3 is a down pipe nozzle arrangements schematic diagram
As shown in the figure, the 1st, riser gas access, the 2nd, hypomere circulation inclined tube, the 3rd, down pipe, the 4th, down pipe nozzle, the 5th, down pipe gas access, the 6th, epimere circulation inclined tube, the 7th, liquid inlet, the 8th, gas vent, the 9th, riser, the 10th, riser nozzle, the 11st, liquid outlet, the 12nd, distribution of gas hole
The specific embodiment
There is down pipe nozzle 4 down pipe 3 inside, down pipe nozzle 4 communicates with the down pipe gas access 5 of down pipe 3 sides, down pipe 3 tops communicate with riser 9 tops by epimere circulation inclined tube 6, the bottom of down pipe 3 communicates with riser 9 bottoms by hypomere circulation inclined tube 2, there are gas vent 8 and liquid inlet 7 in the top of riser 9, riser nozzle 10 is arranged at the bottom in the riser 9, riser nozzle 10 communicates with the riser gas access 1 of riser 9 bottoms, the tapered structure in riser 9 bottoms, liquid outlet 11,12nd is arranged at riser 9 bottoms, the distribution of gas hole on riser nozzle 10 or the down pipe nozzle 4.
Liquid flows in the riser 9 through liquid inlet 7, gas then enters riser 9 by riser gas access 1 through riser nozzle 10, and carry out mass transfer with liquid in the riser 9, conduct heat and reaction, carrying liquid simultaneously moves upward, in riser 9 top gas and fluid separation applications, gas is discharged by the gas vent 8 of top, riser 9 tops, liquid enters down pipe 3 through epimere circulation inclined tube 6, and in down pipe 3 with the mixed gases that enters through down pipe gas access 5 and down pipe nozzle 4 in the down pipe 3, carry out gas-liquid transmission and reaction, and move downward together, enter in the riser 9 by hypomere circulation inclined tube 2, the liquid of riser 9 bottoms is discharged through the liquid outlet 11 of pyramidal structure side, riser 9 bottom.
Claims (3)
1, a kind of air lift type external loop reactor with two spray nozzles is to be by riser (9) by it, down pipe (3), liquid inlet (7), liquid outlet (11), gas access (1) and gas vent (8) are formed, it is characterized in that down pipe (3) top communicates with riser (9) top by the epimere inclined tube (6) that circulates, down pipe (3) bottom communicates with riser (9) bottom by the hypomere inclined tube (2) that circulates, down pipe nozzle (4) is housed in the down pipe (3), down pipe gas access (5) communicates with down pipe nozzle (4), there are gas vent (8) and liquid inlet (7) in riser (9) top, riser nozzle (10) is arranged at the bottom in the riser (9), the tapered structure in riser (9) bottom, there are liquid outlet (11) and riser gas access (1) in riser (9) bottom, and riser gas access (1) communicates with riser nozzle (10).
2, a kind of air lift type external loop reactor with two spray nozzles as claimed in claim 1 is characterized in that being distributed with on the described riser nozzle (10) gas nozzle (12).
3, a kind of air lift type external loop reactor with two spray nozzles as claimed in claim 1 is characterized in that being distributed with on the described down pipe nozzle (4) gas nozzle (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006101561583A CN100464832C (en) | 2006-12-30 | 2006-12-30 | Air lift type external loop reactor with two spray nozzles |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006101561583A CN100464832C (en) | 2006-12-30 | 2006-12-30 | Air lift type external loop reactor with two spray nozzles |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1994547A true CN1994547A (en) | 2007-07-11 |
| CN100464832C CN100464832C (en) | 2009-03-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2006101561583A Expired - Fee Related CN100464832C (en) | 2006-12-30 | 2006-12-30 | Air lift type external loop reactor with two spray nozzles |
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| CN (1) | CN100464832C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105837407A (en) * | 2016-04-27 | 2016-08-10 | 厦门大学 | Preparation method of isobutyl vinyl ether |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4151813A (en) * | 1978-03-27 | 1979-05-01 | Foster Wheeler Energy Corporation | Jet pump in natural circulation fossil fuel fired steam generator |
| DK163066C (en) * | 1989-08-07 | 1992-06-15 | Dansk Bioprotein | PROCEDURE AND APPARATUS FOR PERFORMING A FERMENT |
| JPH0824624A (en) * | 1994-07-12 | 1996-01-30 | Ube Ind Ltd | Method for controlling reaction in bubble tower-type loop reactor |
| CN2276504Y (en) * | 1996-12-16 | 1998-03-18 | 江苏理工大学 | Low height-diameter ratio gas circulation bioreactor |
| JP2002286216A (en) * | 2001-03-28 | 2002-10-03 | Chugai Ro Co Ltd | Operation method for circulated fluidized bed |
| CN2518585Y (en) * | 2001-12-20 | 2002-10-30 | 沈阳化工研究院 | Gas spouted outside circulation reaction device |
| DE602005020040D1 (en) * | 2004-10-14 | 2010-04-29 | Basell Poliolefine Srl | PROCESS FOR THE GAS PHASE POLYMERIZATION OF OLEFINES |
| CN200996011Y (en) * | 2006-12-30 | 2007-12-26 | 中国石油大学(北京) | External circulating-current reactor of double-nozzle air-extracting |
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2006
- 2006-12-30 CN CNB2006101561583A patent/CN100464832C/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105837407A (en) * | 2016-04-27 | 2016-08-10 | 厦门大学 | Preparation method of isobutyl vinyl ether |
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| Publication number | Publication date |
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| CN100464832C (en) | 2009-03-04 |
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Granted publication date: 20090304 Termination date: 20100201 |