CN102311308B - Device for concentrating ethanol through ultrasonic atomization and method for concentrating ethanol - Google Patents
Device for concentrating ethanol through ultrasonic atomization and method for concentrating ethanol Download PDFInfo
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- CN102311308B CN102311308B CN201010222437.1A CN201010222437A CN102311308B CN 102311308 B CN102311308 B CN 102311308B CN 201010222437 A CN201010222437 A CN 201010222437A CN 102311308 B CN102311308 B CN 102311308B
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Abstract
The invention discloses a device for concentrating ethanol through ultrasonic atomization and a method for concentrating ethanol. The device comprises an ultrasonic atomization tank with an ultrasonic atomizer, a liquid ring delivery pump, gas-liquid contact equipment and gas-liquid separation equipment; the gas phase inlet of the liquid ring delivery pump is communicated with the atomized matter outlet of the ultrasonic atomization tank; the outlet of the liquid ring delivery pump is communicated with the gas-liquid contact equipment and the gas-liquid separation equipment in turn; and the working solution of the liquid ring delivery pump is a concentrated ethanol solution. In the method for concentrating the ethanol, the device is adopted. Compared with the prior art, the invention has the advantages of high recovery efficiency of the ultrasonically atomized matter, high treatment capacity and the like.
Description
Technical field
The present invention relates to a kind of apparatus and method of concentrating ethanol through ultrasonic atomization, particularly a kind of method that reclaims ultrasonic generation spray.
Background technology
The advantages such as that biomass have is renewable, output large, can store, carbon cycle.The exploitation biomass energy is a kind of effective way that solves the fossil energy crisis.Bio-ethanol is a kind of biomass energy that receives more concern.Utilize the cellulose wastes producd fibers ethanol of agriculture, forestry, there is good Research Prospects.Biomass are converted into glucose through steps such as pre-treatment, then obtain ethanol through the microorganism fermentation.Biomass can be divided into saccharine material, starchy material and cellulosic material substantially.The technology that saccharine material, starchy material are produced fuel alcohol is very ripe.Brazil is main with sugarcane direct production fuel alcohol, and the annual output with the Maize Production fuel alcohol of the U.S. is also very large.But in general, it is obviously unpractical relying on molasses, foodstuff starch raw material to solve the very large fuel problem of consumption, particularly for population pressure, larger countries and regions are all the more so.U.S.'s " industrial enzymology " is thought: " if ethanol industry will be survived, just must utilize lignocellulose production ".Utilize glucose direct fermentation to prepare the technique that ethanol is a comparative maturity of grain fermentation industry, and prepare in ethanol process at cellulose fermentation, apply mechanically this technique and make cellulose fermentation ethanol fail so far to walk out the Technological Economy pass.The main process that cellulose fermentation prepares ethanol comprises the steps such as pre-treatment, hydrolysis, fermentation, concentrate, has the deficiencies such as Production Flow Chart is long, energy consumption is high, waste water is many, affects the economy of industrial application.
The general concentration of ethanolic soln in the fermented liquid that the microorganism fermentation directly obtains is lower, expect utilization, just must be through concentrate.The simplest, most widely used concentration method is distillation, but in the ethanol volumetric concentration lower than 15% the time, adopt the method energy consumption of distillation large, less economical.In addition, the method for concentrate also has the methods such as Adsorption Concentration, infiltration concentrate, and all there are the deficiencies such as concentrate efficiency is low, less economical in these methods.
Ultrasonic concentrate is the ethanol concentration method of the novelty of this area appearance.Ethanol has the too high physical property of surface concn, and ultrasonic concentration has utilized this character of ethanol just.Ultrasonic concentration unit consists of ultrasonic oscillator, gas blower, several parts of condensate recycling device usually.Because the latent heat of the energy Ratios ethanolic soln to be concentrated that flows to vibrator is much smaller, the more energy of the comparable distillation and concentration method of ultrasonic concentration method saving.The droplet that ultrasonic atomizatio produces is very small, adopts general condensation method or method of trapping, is difficult to effectively spray is condensed into the ethanolic soln of standard state.JP2005066554 has proposed the method for several aggegation spray, comprising: volume, cooling aggegation, the recovery unit that strengthens recovery unit is airtight, spray-absorption, to spray, force blowing to stir, baffle plate is set, the spray vibrator is set, these methods can be used in conjunction with, and improve the aggegation efficiency to spray.This recovery system equipment complexity.In the ultrasonic concentration unit of ethanol, the effect of blast apparatus generally is to provide to gas (being generally air) circulation power, especially makes the spray of ultrasonic generation arrive in trap with air-flow.For example in JP2005066526, JP2005066553, JP2005066554, CN200810011464.7, the example with the ultrasonic technique of blast apparatus is arranged.Adopt in the ultrasonic concentration unit of blast apparatus, the dynamic efficiency of blast apparatus is lower, and energy consumption is relatively high, need to supplement proper amount of gas simultaneously, nebulizer gas pressure and speed are also had to potential requirement, for example, for common coil tube type condensing trapping device, the prolong of coiling has caused suitable resistance to gas mobile, the gas of carrying spray secretly is passed through smoothly, blast apparatus must offer the pressure of gas higher than particular value, yet the excessive gas velocity of air pressure is crossed conference, greatly shortened the residence time of spray in catching apparatus, be unfavorable for that it is trapped smoothly, cohesion, the spray of collection at large again along with air-flow in whole loop constantly circulation until in certain circulation by aggegation, many transmission energy have been consumed again in this process, therefore need further to improve and take the economy of the ultrasonic concentration unit that air blast is power.
Summary of the invention
The invention provides a kind of method of device and concentrated ethanol of concentrating ethanol through ultrasonic atomization, the spray organic efficiency that the present invention has after ultrasonic atomizatio is high, and unit capacity is large, the advantages such as good economy performance.
The device of concentrating ethanol through ultrasonic atomization of the present invention, comprise the ultrasonic atomizatio tank, Pendular ring type transferpump, gas-liquid contanct equipment and the gas-liquid separation equipment that are provided with ultrasonic atomizer.The gas phase entrance of Pendular ring type transferpump communicates with the outlet of the spray of ultrasonic atomizatio tank, and the outlet of Pendular ring type transferpump is communicated with gas-liquid contanct equipment and gas-liquid separation equipment successively, and the working fluid of Pendular ring type transferpump is the ethanol concentrated solution.
In apparatus of the present invention, ultrasonic atomizer and ultrasonic atomizatio tank can adopt the device of this area routine.Be provided with vibrator in ultrasonic atomizer, for making ethanolic soln ultrasonic atomizatio to be concentrated, vibrator at least arranges one and can arrange a plurality of.The ultrasonic atomizatio tank is provided with gas inlet, solution entrance and taphole, and spray outlet.
In apparatus of the present invention, ultrasonic atomizatio tank taphole, interchanger, pump, atomization tank solution entrance form circulation loop.For the cooling of material, the cycle rate of recycle stock is determined according to the exchange capability of heat of the solution to be concentrated temperature that will set and interchanger.
In apparatus of the present invention, the gas inlet of ultrasonic atomizatio tank preferably arranges check valve, and this check valve is the mechanical type check valve, and the vacuum tightness of controlling in the ultrasonic atomizatio tank is less than 5kPa (lower than environmental stress 5kPa).This valve also can adopt solenoid electric valve, by the pressure range of setting or the opening and closing of time interval controls check valve.
In apparatus of the present invention, the Pendular ring type transferpump can adopt this area conventional structure, because identical with the principle of work of liquid-ring vacuum pump, thus can employing and liquid-ring vacuum pump or the similar structure of liquid-ring compressor, only need to adjust as required correlation parameter and get final product.During work, inlet mouth pressure is identical with the pressure of ultrasonic atomizatio tank, and top hole pressure can be definite according to the needs of follow-up gas-liquid contanct equipment and gas-liquid separation equipment, and general gauge pressure is 2～100KPa, preferably 5～80KPa.
In apparatus of the present invention, the ethanolic soln that the working fluid of Pendular ring type transferpump is proper concn, arrange cooling apparatus on the working fluid pipeline, and the cycle operation liquid temp carries out cooling while surpassing 50 ℃.
In apparatus of the present invention, gas-liquid contanct equipment is arranged on the gas-liquid mixture transport pipe between gas-liquid separation equipment and Pendular ring type transferpump, perhaps be arranged among gas-liquid separation equipment, gas-liquid separation equipment arranges the gaseous emission pipeline and working fluid is delivered to the circulation line of Pendular ring type transferpump.
In apparatus of the present invention, gas-liquid contanct equipment can disperse member for static mixer, dynamic mixer, packing tower or bubbling.Static mixer, dynamic mixer and packing tower are arranged on separately on Pendular ring type transferpump export pipeline, and bubbling disperses member to be arranged in gas-liquid separation equipment.If adopt packing tower as gas-liquid contanct equipment, can adopt the filler of this area routine, the height of filler generally should not be less than 300mm.
The method of the concentrated ethanol of the present invention, adopt single-stage concentrated or multistage concentrated, and wherein at least one-level concentrates and adopts the above-mentioned ultrasonic atomizatio concentrating unit of the present invention.The raw material of ethanolic soln be any fermenting process obtain containing ethanolic soln, or other commercial run obtain containing ethanolic soln.The frequency of ultrasonic ultrasonic atomizer is 1～10MHz.
Compared with prior art, the present invention has cancelled in the ultrasonic extracting and concentrating technology of usually ethanol as the blowing device that shifts the spray power resources, adopt the Pendular ring type transferpump will carry secretly in gas (being generally air) the inhalant liquid ring type transferpump of spray, after supercharging, with some work liquid, together from the gas-liquid mixture outlet, be discharged to pump, in dissolving in working fluid again after part spray is aggregated into ethanolic soln under pressure, part spray directly is dissolved in working fluid, the aggegation in gas-liquid contanct equipment subsequently of a small amount of UA spray.In gas-liquid separation equipment, the gas (being generally air) of having removed spray separates with the working fluid that has absorbed spray, and gas is discharged, and working fluid partly loops back the working fluid import of Pendular ring type transferpump.
The spray organic efficiency that apparatus of the present invention and method have after ultrasonic atomizatio is high, and processing power is large, the advantages such as good economy performance.The device midway trapped with respect to the air blast circulation, adopt Pendular ring type transferpump of the present invention can avoid the step of the independent aggegation of spray, utilize the working fluid of Pendular ring type transferpump that spray is absorbed, for absorbing, strengthening also is provided with gas-liquid contanct equipment, the spray organic efficiency is high, avoided recirculation to carry the power consumption of spray, conserve energy simultaneously.In the present invention, the Pendular ring type transferpump is not only as the power transmission device of spray, and it is also the absorption treatment facility of spray simultaneously.And other devices, process power often discrete with transmission power, the ultrasonic concentration unit of blasting condensation of still take is example, it transmits power and is provided by blast apparatus, it processes power is but the temperature difference that heat-eliminating medium offers spray, cooling apparatus cost and cooling operation cost that this has just introduced the cost of heat-eliminating medium and has lowered the temperature for heat-eliminating medium.Apparatus of the present invention treatment capacity is large, good economy performance.
The accompanying drawing explanation
Fig. 1 is the Pendular ring type transferpump fundamental diagram that the present invention uses.
A kind of concrete formation schematic diagram that Fig. 2 is apparatus of the present invention.
Wherein: 1, gas inlet; 2, ultrasonic atomizatio tank; 3, vibrator waterproof washer; 4, ultrasonic power; 5, vibrator (ultrasonic oscillator); 6, spray outlet; 7, entrained gas import; 8, Pendular ring type transferpump; 9, gas-liquid mixture outlet; 10, gas-liquid contanct equipment; 11, knockout drum; 12, cooling heat exchanger; 13, working fluid import; 14, solution to be concentrated recycle valve; 15, solution to be concentrated imports valve; 16, concentrated solution bleed valve; 17, venting port; 18, fresh working fluid intake; 19, process rear Diluted Alcohol solution bleed valve; 20, Pendular ring type transferpump housing; 21, Pendular ring type transferpump pendular ring; 22, Pendular ring type delivery pump blade wheel.
Embodiment
Below in conjunction with accompanying drawing, illustrate a kind of detailed formation and working method of apparatus of the present invention.
As shown in Figure 1, Pendular ring type transferpump principle of work is as follows: working fluid enters in Pendular ring type transferpump housing 20 by working fluid import 13, when Pendular ring type delivery pump blade wheel 22 turns clockwise, effect due to centrifugal force, working fluid is at sealing pendular ring 21 of the interior formation of Pendular ring type transferpump housing 20, blade by Pendular ring type delivery pump blade wheel 22 is delivered to gas-liquid mixture outlet 9 by the gas boosting at entrained gas import 7 places, and gas and some work liquid are delivered to outside the Pendular ring type transferpump.
As shown in Figure 2, the method for a kind of concentrated ethanol of the present invention is specific as follows.At first can utilize pump that ethanolic soln to be concentrated is squeezed in ultrasonic atomizatio tank 2 through solution inlet port, now, valve 15 is opened, and valve 14 and 19 is for closing condition.Arrive certain liquid level (vibrator must be immersed in solution), shut-off valve 15, open valve 14, circulate in the loop that solution to be concentrated forms in taphole, cooling heat exchanger 12, pump and solution inlet port.Start vibrator 5, start ultrasonic atomizatio.Through certain hour, the spray produced reaches finite concentration on atomization tank top, primer fluid ring type transferpump 8, working fluid enters in the housing of Pendular ring type transferpump from import 13, rotation along with impeller, the gas of carrying spray secretly progressively enters the Pendular ring type transferpump from entrained gas entrance 7, and after supercharging, gas and some work liquid are from gas-liquid mixture exports 9 liquid effluent ring type transferpumps.Gas-liquid mixture arrives gas-liquid contanct equipment along pipeline, in this example, is packing tower, and filler is the θ ring, and packed height is 500mm, after gas-liquid fully contacts, from the packing tower exit end, flows out, and along pipeline, arrives in knockout drum.In knockout drum, gas-liquid separation, liquid partly turns back to Pendular ring type transferpump working fluid import 13 places as cycle working fluid, and gas is by venting port 17 discharges.When the strength of fluid in separating tank 11 reaches requirement, stop Pendular ring type transferpump 8, open valve 16, discharge concentrated solution.Then shut-off valve 16, from fresh working fluid intake 18, add fresh working fluid, then open the running of Pendular ring type transferpump.When the strength of fluid in separating tank reaches requirement, also can not termination of pumping 8, open valve 16 discharge concentrated solutions, make concentrated solution arrive suitable liquid level in knockout drum 11, then add in right amount fresh working fluid.When the ethanolic soln concentration in atomization tank drops to particular value, close the solution to be concentrated transferpump, shut-off valve 14 (valve 15 is still in closing condition), open valve 19, discharge Diluted Alcohol solution.As previously described, introduce fresh ethanolic soln to be concentrated, carry out the concentrate process of a new round.
Claims (9)
1. the device of a concentrating ethanol through ultrasonic atomization, is characterized in that: comprise the ultrasonic atomizatio tank, Pendular ring type transferpump, gas-liquid contanct equipment and the gas-liquid separation equipment that are provided with ultrasonic atomizer; The gas phase entrance of Pendular ring type transferpump communicates with the outlet of the spray of ultrasonic atomizatio tank, and the outlet of Pendular ring type transferpump is communicated with gas-liquid contanct equipment and gas-liquid separation equipment successively, and the working fluid of Pendular ring type transferpump is the ethanol concentrated solution.
2. according to device claimed in claim 1, it is characterized in that: ultrasonic atomizer arranges one or more.
3. according to device claimed in claim 2, it is characterized in that: the frequency of ultrasonic atomizer is 1～10MHz.
4. according to device claimed in claim 1, it is characterized in that: the gas-liquid contanct equipment of setting comprises that static mixer, dynamic mixer, packing tower or bubbling disperse member.
5. according to device claimed in claim 4, it is characterized in that: gas-liquid contanct equipment adopts packing tower, and the height of filler is no less than 300mm.
6. according to device claimed in claim 1, it is characterized in that: gas-liquid separation equipment arranges the gaseous emission pipeline and working fluid is delivered to the circulation line of Pendular ring type transferpump.
7. according to device claimed in claim 6, it is characterized in that: on the circulation line that working fluid is delivered to the Pendular ring type transferpump of gas-liquid separation equipment setting, cooling apparatus is set.
8. according to device claimed in claim 1, it is characterized in that: Pendular ring type transferpump top hole pressure gauge pressure is 2～100KPa, the ethanolic soln that Pendular ring type transferpump working fluid is proper concn.
9. the method for a concentrated ethanol is characterized in that: adopt single-stage concentrated or multistage concentrated, wherein the concentrated described ultrasonic atomizatio concentrating unit of the arbitrary claim of claim 1～8 that adopts of one-level at least.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201010222437.1A CN102311308B (en) | 2010-07-07 | 2010-07-07 | Device for concentrating ethanol through ultrasonic atomization and method for concentrating ethanol |
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| CN201010222437.1A CN102311308B (en) | 2010-07-07 | 2010-07-07 | Device for concentrating ethanol through ultrasonic atomization and method for concentrating ethanol |
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| CN102311308A CN102311308A (en) | 2012-01-11 |
| CN102311308B true CN102311308B (en) | 2014-01-01 |
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| CN109096115A (en) * | 2018-07-02 | 2018-12-28 | 赵杰 | A kind of methyl ethyl carbonate preparation process |
| CN110756375B (en) * | 2019-11-01 | 2020-12-01 | 江南大学 | Double-layer continuous ultrasonic atomization grading device and grading method |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87102717A (en) * | 1986-04-08 | 1988-01-13 | 海因茨·艾科尔兹 | The vacuum condensation method of water vapour |
| CN101580794A (en) * | 2008-05-14 | 2009-11-18 | 中国石油化工股份有限公司 | Biomass fermentation-separation coupling device and ethanol preparation method |
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- 2010-07-07 CN CN201010222437.1A patent/CN102311308B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87102717A (en) * | 1986-04-08 | 1988-01-13 | 海因茨·艾科尔兹 | The vacuum condensation method of water vapour |
| CN101580794A (en) * | 2008-05-14 | 2009-11-18 | 中国石油化工股份有限公司 | Biomass fermentation-separation coupling device and ethanol preparation method |
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