CN101307334B - Process for producing fuel ethanol by stalk beating method - Google Patents
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- CN101307334B CN101307334B CN2008101325274A CN200810132527A CN101307334B CN 101307334 B CN101307334 B CN 101307334B CN 2008101325274 A CN2008101325274 A CN 2008101325274A CN 200810132527 A CN200810132527 A CN 200810132527A CN 101307334 B CN101307334 B CN 101307334B
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Abstract
The invention relates to a process for making fuel ethanol by means of saccharine straw. The process comprises the following technological flows of fresh straw cleaning up, cleaning, ozone sterilization, chopping, scattering, pulping, (preserving), yeast adding, premixing, anaerobic fermentation, raw distillation, rectification and dewatering, etc., wherein the step of pulping is to crush fresh saccharine straw fiber structure into less than 40 meshes of fiber powder so as to ensure that the juice in straw is completely released. The process is based on slurry and makes a corresponding novel technological program for the storing, preserving, feeding, yeast mixing, fermentation and extraction of ethanol; meanwhile, the process selects a device and a device assembly corresponding to the technological program. Moreover, the process has simple and efficient method, and can increase ethanol output capacity at lower cost.
Description
Technical field
The present invention relates to a kind of novel process of producing alcohol fuel, specifically is exactly a kind of process method of utilizing stalks (hereinafter to be referred as the saccharic stalk) such as sugarcane, sweet sorghum stalk to produce alcohol fuel.
Background technology
Current, the process method of utilizing the saccharic stalk to make alcohol fuel has solid fermentation method, three kinds of the method for squeezing the juice and sugared stalk powder methods etc.The major advantage and the shortcoming of these three kinds of methods are following.
Solid fermentation method is that to adopt kneading and cutting machine that the saccharic stalk is rubbed broken, the method for utilizing the stalk fragment to ferment.The advantage of this method is that method is simple, simple flow, easy master.But following process has three difficult points:
1. in large batch of solid substances, mix bent difficulty, be not easy to stir, it is inhomogeneous and thorough to ferment in the short period, causes sugared transformation efficiency to reduce, if improve sugared transformation efficiency, then need prolong fermentation time; Even 2. fermentation is thorough, the short period, interior distillation was not thorough, reduced ethanol and collected rate, collected rate if improve ethanol, then necessary prolongation distillation time; 3. mass transport difficulty in enormous quantities if adopt transmission belt to carry, then possibly cause a large amount of ethanol volatilizations in the material of fermenting-ripening, loss, reduce ethanol and collect rate, and this shortcoming is difficult to adopt an effective measure and avoids.Because these three shortcomings, it is lower that the sugar transformation efficiency of solid fermentation method and ethanol are collected rate.
The method of squeezing the juice is to adopt squeezing machine that the syrup of saccharic stalk is squeezed out, and utilizes the method for syrup fermentation.The great advantage of this method is that liquid syrup is mixed with yeast easily, and fermentation is thorough, and the sugared transformation efficiency of fermented liquid is higher, and it is also higher that follow-up distillatory ethanol is collected rate.But maximum shortcoming is that the sap extraction rate of saccharic stalk is not high.Generally speaking, the squeezing machine single pressing juice of saccharic stalk 40% of can only squeezing out.As need the residue juice in the residue be squeezed out, then must repeatedly add water, repeatedly squeezing.Its adverse consequences has three: one, repeatedly squeezes the increasing tooling cost; The 2nd, press even repeatedly add hydraulic pressure, the residual sugar content (＞1%) in the waste residue is difficult to reduce; The 3rd, can be though repeatedly add the hydraulic pressure press for extracting juice with more polysaccharide branch extraction, syrup concentration reduces, and behind the fermenting-ripening, the alcohol concn of fermented liquid reduces, and cost is distilled in increasing.
Sugar stalk powder method is the oven dry of saccharic stalk to be ground into dry-powdered, the method for fermenting with sugared stalk dry powder damping again.The great advantage of this method is to help standing storage after the stalk oven dry.But deficiency also has three: one, also needs damping to ferment after the oven dry, wastes energy; The 2nd, the many stalk snappinesies in oven dry back are strengthened, and weight saving is not easy to pulverize, and working (machining) efficiency is very low; The 3rd, fresh saccharic stalk water cut is big, and the bright material of 1 ton of every oven dry needs about 100 yuan of cost, and processes 1 ton of dry powder and need 160 yuan of process cost, and tooling cost is higher.
In actual production process, some saccharine material, as sweet sorghum often the ripening stage very concentrated, if it is untimely to gather, will lose sugar part, and big content of starting materials overstocks, if can not get timely processing, often rots.Therefore, raw material processing in enormous quantities and fresh-keeping storage are the two big technical bottlenecks that saccharine material is produced alcohol fuel.Because all there is the limitation that is difficult to overcome separately in above technology, in actual production, is difficult to the production task of process mass, the fresh-keeping problem of raw material also is difficult to solve simultaneously, is difficult in the industry development and effectively uses.
Summary of the invention
The present invention has overcome the deficiency of existing process method, is the saccharic fuel ethanol produced by straw, provides a cover easy to operate, reduces cost the new process of raising the efficiency.
In order to reach above purpose, the present invention proposes to adopt " beating method " novel process.Technical process comprises:
------------rubbing diffusing,------(fresh-keeping)---------anaerobically fermenting---slightly heats up in a steamer links such as---rectifying---dehydration to premix to ozone sterilization to add yeast in making beating in chopping in cleaning in the fresh straw cleaning.The process flow sheet of producing fuel ethanol by stalk beating method is as shown in Figure 1.The ultimate principle of " beating method " is that fresh sweet sorghum stalk contains juice and surpasses 70%, robust fibre dry-matter less than 30%; If its coarse fiber structure is broken up, be worked into enough thin ultra-fine state, the superfine fiber dust contains quantity not sufficient 30%; Can produce and surpass 70% paste mixture moisture being divided into; Add 50% water, make sugar content drop to suitable yeast fermentation concentration (12%) from 18%, be mixed with juice content greater than 80%; Fiber dust is less than 20% fluidised form slurry, thereby very convenient condition is provided for following process.
Technical scheme of the present invention is: 1, a kind of is the technology of raw material production alcohol fuel with the saccharic stalk, may further comprise the steps: (1) cleaning stalk, remove blade; (2) clean stalk; (3) sterilization; (4) chopping; (5) rub diffusing; (6) making beating; (7) fermentation; (8) slightly heat up in a steamer; (9) rectifying; (10) dehydration; It is characterized in that: the pulping process of described step (6) is with feeder the stalk fragment to be sent into the recirculated water collecting tank; Hollander constantly the rotor-stator of high speed rotating, further shreds the stalk fragment with the stalk fragment in opening for feed is sent into hollander through recirculated water; Stalk powder after the pulverizing is sent the filter pulp pond with recirculated water to from discharge port, and the filter pulp pond is filtered stalk powder and stayed in the pond, and water leaches from screen cloth, flows back in the recirculated water collecting tank, continues to add water cycle, brings new stalk fragment into hollander; So circulation becomes the thickness pulpous state up to recirculated water repeatedly, makes solid-state material transform into slurry.Said thickness slurry is a sugar content 12%, and content liquid is greater than 80%, and fiber dust is less than 20% fluidised form slurry.
It is 100mg/ ton ozone water circulation making beating that said step (6) adopts concentration; The slurry that obtains is delivered directly to the fresh-keeping storage of pulp storage tank, as the raw material of step (7), perhaps in pulping process, adds yeast; Make yeast and straw pulp uniform mixing, as the raw material of step (7).
Said step (7) stalk will adopt the special-purpose Angel Yeast fermentation of alcohol; Sneak into the zymic straw pulp; Adopt pump for mortar transmission directly to be input into fermentation vat, sealed fermenting, fermentation vat adopt well water and distillation tower hot water circulation to regulate the fermentation vat temperature; Leavening temperature is controlled between 36 to 39 degree, and fermentation time is 40-50 hour.
In the pulping process of said step (6), the stalk fragment is further shredded to 40 orders.The slurry that makes in the pulping process is in the device by pump for mortar transmission and pipe-line transportation to next step.
Adopting concentration in the said step (3) is the sterilization of 100mg/ ton soak with ozone solution.Pour the stalk after cleaning into sterilization pool, soak time is 10-30 minute.
Said step (8) straw pulp is imported the topping still still kettle with pump for mortar transmission with material, opens the thick wine of 6 kilograms of pressure steam distillation extraction, 50 degree, pours water into still kettle dilution vinasse after the thick wine distillation, adopts pump for mortar transmission that vinasse are discharged then.
The thick wine input of said step (9) rectifying tower extracts 95 degree alcohol, and unnecessary thick wine is sent into storage wine tank stores, treat that fermentation raw material processes after, extract storage wine jar crude alcohol and heat up in a steamer.
Said step (10) 95 degree alcohol adopt molecular sieve dehydration, produce alcohol fuel.
Main innovate point of the present invention is following:
(1) adopts the QDDW wet process disintegrator,, be processed into the process method of fluidised form slurry fresh solid-state saccharic stalk.
(2) solid-state saccharic stalk is changed into the fluidised form slurry, realize stalk rapid processing in enormous quantities, conveying, storage and fresh-keeping process method.
(3) solid-state saccharic stalk is processed into the fluidised form slurry, realizes saccharic stalk and the mixed uniformly short-cut method of yeast.
(4) solid-state saccharic stalk is processed into the fluidised form slurry, carries out the even fermented extracted alcoholic acid of slurry method.
(5) process, carry the device and the device combination that adapt with slurry.
Main advance of the present invention is following:
(1) hollander of the present invention is that the QDDW wet process disintegrator is adopted in the commercially available prod, and its manufacturer is Qingda Food Equipment Co., Ltd., Wuxi.Fresh saccharic stalk directly is processed into pulpous state, because the course of processing is that fresh straw is directly pulverized, stalk fragility is better, processing easily, and it is lower to pulverize cost.
(2) solid-state stalk transforms into the fluidised form slurry, can adopt the short-cut method of pump for mortar transmission, realizes large batch of mass transport, thereby has created very convenient condition for following process.
(3) after solid-state saccharic stalk was processed into the slurry of fluidised form, because stalk fibre partly is crushed to the ultra-fine state below 40 orders, the biological structure of stalk was broken up fully; The biological metabolism effect is prevented from; After adopting ozone water to mix sterilization, can stalk be stored 2 to 3 months, thereby realize fresh-keeping, the storage of saccharic stalk; And the nutritive ingredient of stalk, especially sugar can not lost.
(4) after the saccharic stalk was ground into ultra-fine state, syrup was released out, had formed the mixture of syrup＞70% fiber dust＜30%; Therefore, solid-state stalk has become the fluidised form slurry, very helps material and yeast uniform mixing; Fermentation is evenly dispelled the heat evenly, shortens fermentation time; Improve fermentation efficiency, also be convenient to adopt pump for mortar transmission and pipe-line transportation, volatile alcoholic acid loss after the minimizing material especially ferments.
(5) because sugar mainly is kept in the syrup, can be converted into ethanol fully, improve ethanol conversion, reduce residual sugar content by thorough fermentation.
(6) because stalk fibre partly is processed to ultra-fine state, and ethanol can be by thorough distillation, the extraction using alcohol rate increases substantially.
(7) pulping process is all collected the entering slurry with juice and stalk fibre powder, and stalk original composition especially sugar keeps fully.
(8) after the saccharic stalk breaks into slurry, need not adopt that the control difficulty is big, the solid-fermented technique of complex equipments, ready-made sophisticated liquid (molasses) fermentation technique all can be used.For the saccharic fuel ethanol produced by straw has been opened up convenience.The fermentation equipment investment is low, helps producing promoting.
The above advantage of " beating method "; Overcome that solid fermentation method mixes that bent difficulty, fermentation are inhomogeneous not thoroughly, ethanol distillation not thoroughly and the inconvenient shortcoming of mass transport; Also overcome the method sugar of squeezing the juice and extracted incomplete shortcoming; Having overcome also that sugared stalk dry method tooling cost is high, efficient is low, the shortcoming of the expense energy, and mixed together the advantage of previous methods, is more advanced process method.
To particular content of the present invention, the existing technology of having delivered of contrast and the patented technology of announcement, the technological innovation that the present invention proposes does not see that as yet identical report is arranged, and does not see that the present invention's technology is identical with other technology yet.See both at home and abroad to have and adopt sweet sorghum, beet pulp and paper technology, also be useful on feed development, but be used for the ethanol development technology seldom, and this process method having novelty, is to be suitable for practical new technical scheme.Therefore, the present invention proposes the technology that saccharine material slurrying is used for ethanol exploitation and belongs to innovative technology.
" beating method " and existing saccharine material system ethanol---solid fermentation method, the method for squeezing the juice, sugared stalk powder method are a cover complete processing and the diverse novel methods of working (machining) efficiency relatively.
Compare with solid fermentation method; " beating method " is a kind of method that saccharine material is processed into the fluidised form slurry; Changed the material form of solid fermentation method fully, also overcome simultaneously the solid fermentation method that causes because of solid substances mix bent irregular, heat radiation is uneven, fermentation is inhomogeneous, fermentation not thoroughly and the various disadvantages of material transmission inconvenience.
Compare with solution fermentation; " beating method " is a kind of method that the juice and the disintegrating slag of raw material are utilized fully; Radical change the method for squeezing the juice extract the technology thinking of part juice; Overcome the method for squeezing the juice and to squeeze 40% juice, and a large amount of sugar still remains in the disintegrating slag, causes the low shortcoming of raw material sugar transformation efficiency.
Compare with sugared stalk powder method; " beating method " is a kind ofly to adopt the fluidised form slurry to ferment at a slow speed or saccharic slurry sterilization fresh is stored to reach the method for storage material in enormous quantities; Changed the dehydration of sugared stalk powder method fully and preserved the operational path of raw material, overcome the raw material dehydration and preserved---add the shortcoming that tooling cost that the water by fermentation operational path causes increases.
" beating method " overcomes the shortcoming of these methods owing to adopted and solid fermentation method, the method for squeezing the juice, the diverse brand-new processing thought of sugared stalk powder method, working method and operational path.See from the material form that " beating method " produced, slurry be a kind of between solid-state and liquid between transition state, therefore, it can be mixed together solid fermentation and send out and all utilize the raw material and the advantage that method fluidised form juice possessed of squeezing the juice.And fermentation at a slow speed of " beating method " slurry or sterilization storage have solved the problem of material mass disposal and storage, also can in shorter process time limit, substitute the storage method of sugared stalk powder method.
" beating method " a whole set of technical process is succeedd following key point is arranged:
The one, the outstanding achievement of contemporary science and technology digested be used, thereby obtain the high efficiency innovation effect of low-cost.
1. adopt the ozone mixing water to the stalk surface sterilization, thoroughly, inexpensive.Sweet sorghum stalk is through 100mg/ ton soak with ozone solution, and every batch only needs 20 minutes, and the bacterial content of can will mixing is reduced to 1,/10 ten thousand, and one ton of sweet sorghum stalk of every processing only needs 10.2 yuan of costs.And the employing steam sterilizing, per ton cost needs 21 yuan, and every batch took time 60 minutes.This law is short, an effective method of a kind of time.
2. select the QDDW wet process disintegrator for use, realized direct employing fresh straw making beating.Because fresh straw property is crisp, frangible, thereby realized that stalk in enormous quantities pulverizes fast, reduced tooling cost significantly, effectively preserved stalk sugar part, the economic benefit of " beating method " and working efficiency are promoted significantly.Adopt " beating method " to pulverize bright stalk per ton and only need 15 yuan of costs.At present, the crushed stalk flow process that adopts usually is to dry stalk earlier, adopts lappet formula kibbler to pulverize then.Because stalk oven dry back snappiness is strong, light weight is difficult for pulverizing, and efficient is very low.The lappet formula kibbler of a 35kw/h needs 1 ton of dry straw of ability processing in 8 hours, and amounting to bright stalk is 3.3 tons, and bright stalk tooling cost per ton needs 38 yuan.Especially those syrup type stalks use lappet formula kibbler, and stalk powder very easily stops up mesh screen, at all can't works better, and tooling cost is higher.In addition, adopt " beating method " technology, owing to realized rapid processing target in enormous quantities, thus avoided concentrated the gathering of sweet sorghum mature period stalk to cause the septic problem that overstocks.
The 2nd, " beating method " created recirculated water and filtered the recirculated work rhythm and pace of moving things, and limit the quantity of the well relation of water mixing and mass disposal raw material of correct handling increases substantially unit time stalk processing output.Thereby only need add small amount of recycled water, just realize handling the target of raw material more than 5 times.And then created and utilized the thin pulp hollander to make the method for underflow.Generally speaking, the slurry dregginess that hollander can drive can not surpass 15%, and when slurry concentration surpassed 20%, slurry can't drive.In the slurrying scheme of the present invention, be in the making beating working cycle, the water that filters out thin pulp adds recirculated water again and participates in the making beating of next batch recirculated water, makes the concentration of hollander remain at thin pulp concentration, and filter water leached after, concentration is bigger.So circulation, the hollander internal recycle is always thin pulp, and filtering slurry is a underflow then, till recirculated water is finished using, accomplishes one batch of making beating task.According to the flow process of " beating method ", per hour can process 12 tons slurry, be equivalent to handle 10 tons of bright stalks.And traditional breaking method can only be handled bright stalk every day less than 4 tons.
The 3rd, " beating method " founded pulping process and carried out slurry and yeast blended operation, increases substantially and mixes bent efficient.The slurry that need ferment on the same day, " beating method " have adopted admixes distiller's yeast in recirculated water, yeast and slurry are just directly mixed in pulping process.Reduce solid fermentation method stalk slag and mixed bent operation; Distiller's yeast is participated in making beating in recirculated water simultaneously; Mix bent operation when making beating finishes and also accomplished, make distiller's yeast and slurry fast, mix equably, time saving and energy saving; Also very convenient condition is provided, has also increased substantially the efficient of fermentation for follow-up fermentation.And solid fermentation is mixed very heaviness of bent operation, and is difficult to stir, time and effort consuming, and also follow-up fermentation is often inhomogeneous, reduces fermentation efficiency.
The 4th, " beating method " realized with the pipeline having reduced material loss for the passage pump for mortar transmission is that power carries out the material transmission, increased substantially mass transport speed and efficient, and carried cost also very low.The transmission of " solid fermentation method " material is carried very trouble from being transported to, and wastes time and energy.The liquid juice of method transports easily though squeeze the juice, and a large amount of slags needs to handle, and transportation is trouble equally.
The 5th, select for use QDDW wet process disintegrator equipment volume little, but power is powerful, therefore investment is also less.One stage body is long-pending less than 2m
3Hollander, can handle 200 tons of raw materials every day.And the large-scale squeezing machine of equipment claimed of handling so a large amount of stalks could be accomplished.
Along with the exhaustion day by day of petroleum resources, energy problem is becoming tight day, and oil price constantly raises up.The renewable biomass energy development that substitutes non-renewable fossil energy becomes the urgent task of various countries.The anxious biomass energy to be developed in the whole world is to alleviate oil crisis.Saccharine material headed by the sweet sorghum is produced the process program of alcohol fuel also in stepping up research.Neither maturation has limited the biomass energy industry development dramatically because there is above-mentioned limitation in existing saccharine material making ethanol, and therefore this industry never obtains new breakthrough in actual production.Therefore, advanced technical study becomes the key of development biomass energy, also is the bottleneck of this industry development.The present invention proposes the novel process that the simple and easy to do saccharine material of a cover is made alcohol fuel; All shortcomings of current technology have been overcome; All advantages of current technology have been mixed together simultaneously again; Opened saccharine material and made the technical bottleneck of alcohol fuel, had very great application value at mass disposal raw material and storing and fresh-keeping.The appearance of this technology, with the development that greatly promotes the biomass energy industry, its application prospect is very wide.
Embodiment
Being that raw material adopts beating method production alcohol fuel technical process shown in Figure 1 to carry out production of fuel ethanol: the fresh straw cleaning with the stalk,------------rubbing diffusing,------(fresh-keeping)---------anaerobically fermenting---slightly heats up in a steamer links such as---rectifying---dehydration to premix to the interpolation yeast to ozone sterilization in making beating in chopping in cleaning.This flow process comprises following ten procedures:
1. blade is removed in stalk cleaning, and sweet sorghum is adopted the disleaf of stripping leaf machine, then stalk is stacked neat.
2. with crane stalk is put into rotary drum washer, cleaned 20 minutes.
3. the stalk after cleaning is poured sterilization pool into, and adopting concentration is the sterilization in 20 minutes of 100mg/ ton soak with ozone solution.
4. adopt four roller cutter formula chaffcutters, stalk is cut into 8 to 12mm broken sections.
5. stalk is sent into puy for broken section and is rubbed into the fragment of width less than 5mm, is delivered to the tower that gathers materials, and adopts steam antibacterial.
6. send into the recirculated water collecting tank with will the gather materials stalk fragment of tower of feeder, hollander constantly the rotor-stator of high speed rotating, further shreds ultra-fine state below 40 orders with the stalk fragment through recirculated water with the stalk fragment in opening for feed is sent into hollander.Stalk powder after the pulverizing is sent the filter pulp pond with recirculated water to from discharge port, and the filter pulp pond is filtered stalk powder and stayed in the pond, and water leaches from screen cloth, flows back in the recirculated water collecting tank, continues to add water cycle, brings new stalk fragment into hollander.So circulation becomes the thickness pulpous state up to recirculated water repeatedly, has both accomplished a batch operation.Said thickness slurry is a sugar content 12%, and content liquid is greater than 80%, and fiber dust is less than 20% fluidised form slurry.Hollander of the present invention is that the QDDW wet process disintegrator is adopted in the commercially available prod, and its manufacturer is Qingda Food Equipment Co., Ltd., Wuxi.
The straw pulp of processing has two kinds of purposes: a kind ofly be used for fresh-keeping storage, in the pulping process of this purposes, it is 100mg/ ton ozone water circulation making beating that recirculated water adopts concentration.Adopt the straw pulp of ozone water making beating to be delivered directly to the fresh-keeping storage of pulp storage tank.After treating that fresh feed uses up, can the yeast fermentation preparing alcohol be sneaked in fresh-keeping raw material output.Another kind is directly to be used for fermentation alcohol, then after the recirculated water sterilization, directly yeast is sneaked into and participates in the circulation making beating, realizes that yeast and straw pulp have just reached direct mixed uniformly effect in the making beating link.
7. stalk will adopt the special-purpose Angel Yeast fermentation of alcohol.Sneak into the zymic straw pulp, adopt pump for mortar transmission directly to be input into fermentation vat, airtight, fermentation.Fermentation vat adopts the recirculated water temperature control, promptly adopts well water and distillation tower hot water circulation to regulate temperature control, and leavening temperature is controlled at 38 degree.
8. through 44 hours, behind the straw pulp fermenting-ripening, material is imported the topping still still kettle, open the thick wine of 6 kilograms of pressure steam distillation extraction, 50 degree with pump for mortar transmission.Pour water into still kettle dilution vinasse after the thick wine distillation, adopt pump for mortar transmission that vinasse are discharged then.
9. thick wine input rectifying tower extracts 95 degree alcohol, and unnecessary thick wine is sent into storage wine tank stores.After treating that fermentation raw material processes, extract storage wine jar crude alcohol and heat up in a steamer.
10. 95 degree alcohol adopt molecular sieve dehydration, produce alcohol fuel.
Claims (8)
1. one kind is the technology of raw material production alcohol fuel with the saccharic stalk, may further comprise the steps: (1) cleaning stalk, remove blade; (2) clean stalk; (3) sterilization; (4) chopping; (5) rub diffusing; (6) making beating; (7) fermentation; (8) slightly heat up in a steamer; (9) rectifying; (10) dehydration; It is characterized in that: the pulping process of described step (6) is with feeder the stalk fragment to be sent into the recirculated water collecting tank; Hollander constantly the rotor-stator of high speed rotating, further shreds the stalk fragment with the stalk fragment in opening for feed is sent into hollander through recirculated water; Stalk powder after the pulverizing is sent the filter pulp pond with recirculated water to from discharge port, and the filter pulp pond is filtered stalk powder and stayed in the pond, and water leaches from screen cloth, flows back in the recirculated water collecting tank, continues to add water cycle, brings new stalk fragment into hollander; So circulation becomes the thickness pulpous state up to recirculated water repeatedly, makes solid-state material transform into slurry; The thickness of said step (6) slurry is a sugar content 12%, and content liquid is greater than 80%, and fiber dust is less than 20% fluidised form slurry;
Directly in the pulping process of said step (6), add yeast, make yeast and straw pulp uniform mixing, carry out the fermentation of step (7);
It is 100mg/ ton ozone water circulation making beating that perhaps said step (6) adopts concentration, and the slurry of acquisition is delivered directly to the fresh-keeping storage of pulp storage tank, treat that fresh feed uses up after, can export by fresh-keeping raw material, sneak into the fermentation that yeast carries out step (7).
2. technology according to claim 1; It is characterized in that: said step (7) straw pulp adopts the special-purpose Angel Yeast fermentation of alcohol, sneaks into the zymic straw pulp, adopts pump for mortar transmission directly to be input into fermentation vat; Sealed fermenting; Fermentation vat adopts well water and distillation tower hot water circulation to regulate temperature control, and leavening temperature is controlled between 36 to 39 degree, and fermentation time is 40-50 hour.
3. technology according to claim 1 is characterized in that: in the pulping process of said step (6), the stalk fragment is further shredded to 40 orders.
4. technology according to claim 1 is characterized in that: the slurry that makes in said step (6) pulping process, and in the device by pump for mortar transmission and pipe-line transportation to next step.
5. according to claim 1,2,3 or 4 described technologies, it is characterized in that: adopting concentration in the said step (3) is the sterilization of 100mg/ ton soak with ozone solution.
6. technology according to claim 5 is characterized in that: the stalk after will cleaning is poured sterilization pool into, and soak time is 10-30 minute.
7. technology according to claim 1; It is characterized in that: said step (8) straw pulp is imported the topping still still kettle with pump for mortar transmission with material; Open the thick wine of 6 kilograms of pressure steam distillation extraction, 50 degree, pour water into still kettle dilution vinasse after the thick wine distillation, adopt pump for mortar transmission that vinasse are discharged then.
8. technology according to claim 1 is characterized in that: the thick wine input of said step (9) rectifying tower extracts 95 degree alcohol, and unnecessary thick wine is sent into storage wine tank stores, treat that fermentation raw material processes after, extract storage wine jar crude alcohol and heat up in a steamer; Said 95 degree alcohol adopt molecular sieve dehydration, produce alcohol fuel.
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| CN102191281A (en) * | 2011-03-15 | 2011-09-21 | 黑龙江省轻工科学研究院 | Method for manufacturing fuel alcohol through fermenting crop straw |
| CN102796768B (en) * | 2012-07-30 | 2014-02-12 | 张爱诚 | High value integration utilization method of maize straw |
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| CN1710085A (en) * | 2005-06-17 | 2005-12-21 | 郎咏梅 | Method for producing alcohol from sugar grass straw juice |
| CN1970777A (en) * | 2006-11-28 | 2007-05-30 | 杨立国 | Process for preparing ethanol by using dry straws of sweet stem corn or sweet sorghum as raw materials |
| CN101024848A (en) * | 2007-03-27 | 2007-08-29 | 刘明全 | Method for producing alcohol using sweet kaoliang straw |
| CN101168749A (en) * | 2007-11-07 | 2008-04-30 | 刘明全 | Method for preparing ethanol from sweet sorghum stem |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1710085A (en) * | 2005-06-17 | 2005-12-21 | 郎咏梅 | Method for producing alcohol from sugar grass straw juice |
| CN1970777A (en) * | 2006-11-28 | 2007-05-30 | 杨立国 | Process for preparing ethanol by using dry straws of sweet stem corn or sweet sorghum as raw materials |
| CN101024848A (en) * | 2007-03-27 | 2007-08-29 | 刘明全 | Method for producing alcohol using sweet kaoliang straw |
| CN101168749A (en) * | 2007-11-07 | 2008-04-30 | 刘明全 | Method for preparing ethanol from sweet sorghum stem |
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