CN105368703A - Device and technique for preparing fuel ethanol through corn straw solid-liquid parallel method - Google Patents
Device and technique for preparing fuel ethanol through corn straw solid-liquid parallel method Download PDFInfo
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Abstract
The invention discloses a device and technique for preparing fuel ethanol through a corn straw solid-liquid parallel method. The device comprises a straw to fuel ethanol liquid fermentation and distilling mixing device used for completing liquid fermentation and distilling and a corn straw to fuel ethanol solid fermentation integrating device used for completing solid fermentation and distilling. A novel mixing device integrating liquid fermentation and distilling is adopted, so that production mode is optimized, and continuation of liquid fermentation is realized; the corn straw to fuel ethanol solid fermentation integrating device is adopted, and five processes including mixing, sterilizing, cooling, inoculating and solid fermentation of materials are integrated and combined with distilling for continuous fermentation, so that conventional production approaches are changed. Compared with the prior art, the device and technique has the advantages of high utilization rate of fermentable sugar, compact production process link, integration, high efficiency, short production period and high ethanol yield.
Description
Technical field
The present invention relates to the technical field utilizing Mierocrystalline cellulose stalk microbe producing fuel ethyl alcohol by ferment, be specially the fermentation that walks abreast of a kind of technique and the device of producing alcohol fuel, particularly a kind of maize straw solid-liquid and produce processing method and the device of fuel.
Technical background
Day by day exhausted at petroleum resources, under the form that environmental protection consciousness is strengthened, people more value the social sustainable development pattern that resource, the energy and economic integration are coordinated to consider.Just under this situation, searching taps a new source of energy particularly important.The agricultural-food development day benefit of China is swift and violent, nowadays even has a surplus.Even to this day the total output of grain of China reaches 500,000,000 tons, and indices is first of the world.At present approximately only 200,000,000 tons can be used to papermaking, building, textile industry, remaining can not have been given play to for life of farmers and act on.The resources such as the agricultural-food hoarded and superfluous stalk become the heavy burden of state revenue and expenditure, badly influenced the increase of farmers' income, rural market prosperity, hinder the development of national economy and become " bottleneck " the restriction problem of modern agricultural development.
Alcohol fuel is a kind of important industrial materials, is widely used and can replacing gasoline, has plurality of advantages.As renewable green energy resource fuel, do not produce toxic gas (carbon monoxide) between main combustion period, pollution level is far below other fuel; Producers carry out scale operation by fermentable, reduce costs.Stalk is a kind of abundant renewable resources, and its composition mainly contains Mierocrystalline cellulose, hemicellulose, xylogen, adopts a series of methods such as pre-treatment, hydrolysis, fermentation to produce alcohol.The resources such as there is abundant lignocellulose in China, superfluous stalk become the great opportunity of development new forms of energy.
At present, stalk fibrid element resource is utilized to be produced into the approach that alcohol fuel mainly contains biotransformation.The bio-transformation of ethanol and fermentative production have the advantages such as target product yield is high, quality better.Maize straw is produced alcohol fuel and is mainly contained liquid and solid state fermentation two kinds of modes.Liquid state fermentation is that maize straw extracting juice or pre-treatment are obtained fermentation soluble sugar, then ferments to it, but residual waste residue or solid matter are still containing a certain amount of sugar, are but abandoned, and causes alcohol yied and reduces; Solid state fermentation is by after crushed stalk, directly ferments, and not pre-treatment fully, when producing in a large number, have production capacity problem, incubation time is long, and alcohol getting rate is low, and easily produces byproduct.Therefore, how to improve the producing level of stalk cellulose resource, more optimized production process, the shortening production cycle becomes the key that fuel ethanol industry is produced in Developing Biomass fermentation.
The technique of solid-liquid parallel synchronous fermentative production of ethanol provided by the invention, raw material is carried out pre-treatment, be applicable to two portions of solid state fermentation and liquid state fermentation respectively, utilize the equipment that two covers are novel, carry out solid state synchronous diastatic fermentation, liquid state fermentation side by side simultaneously, improve utilization ratio, optimization is integrated with production technique, shortens the production cycle.
Summary of the invention
The object of the invention is for producing in alcohol fuel technique that ubiquitous utilization ratio using the one-step fermentation production technique of single form to cause fermentable sugars is low with lignocellulose at present, low conversion rate with the deficiency such as to make a low multiple use, continuous prodution is difficult, provide technique and device that a kind of solid-liquid parallel synchronous diastatic fermentation produces alcohol fuel.
The technical scheme that the present invention realizes above-mentioned purpose is as follows:
A kind of maize straw solid-liquid walks abreast and produces the device of alcohol fuel, comprise stalk and produce alcohol fuel liquid state fermentation and distillation mixing device, for completing liquid state fermentation and still-process, also comprise maize straw and produce alcohol fuel solid state fermentation integrating device, for completing solid state fermentation and still-process; Described maize straw is produced alcohol fuel solid state fermentation integrating device and is comprised sealed fermenting tank body, ethanol distillation pipeline and ethanol holding tank, is connected between described sealed fermenting tank body and ethanol holding tank with ethanol distillation pipeline; Described ethanol distillation pipeline is equipped with condenser and check valve, and stopping valve is equipped with in the bottom of described ethanol holding tank;
The top of described sealed fermenting tank body has opening for feed, and the both sides of opening for feed are respectively equipped with venting port and bacterium liquid mouth spray, and the bottom of described sealed fermenting tank body is provided with condensation-water drain and outlet, steam inlet; The surrounding of described sealed fermenting tank body is equipped with chuck; The inside of described sealed fermenting tank body is provided with screw mixer;
Described screw mixer comprises inner-spiral type agitator, external spiral formula agitator and hollow stirring rake, described inner-spiral type agitator, external spiral formula agitator are fixed on hollow stirring rake by fixed link, and described hollow stirring rake distributes multiple hollow blade pore; Sealed fermenting tank body is all stretched out in the both sides of hollow stirring rake, and the end of the hollow stirring rake in side is provided with hollow stirring rake import, can pass into high-temperature steam or aseptic freezing air; The end of the hollow stirring rake of opposite side is connected with the output shaft of variable-speed motor drive unit, for driving screw mixer.
Further, chuck lower end, described sealed fermenting tank body side is provided with chuck end opening, can pass into the water of differing temps from chuck end opening toward chuck, and it is suitable for reading that sealed fermenting tank body opposite side chuck upper end is provided with chuck, as the outlet passing into differing temps water in chuck.
Further, in described ethanol distillation pipeline, condenser is near one section of downward-sloping certain angle of ethanol holding tank.
Further, when hollow stirring rake rotates, material advances left by described inner-spiral type agitator, and material advances to the right by described external spiral formula agitator.
Further, described variable-speed motor drive unit drives screw mixer work, rotating speed between 0.05 ~ 0.5rpm, to change material stirring degree.
The technical scheme of method of the present invention is: a kind of maize straw solid-liquid walks abreast the processing method of the device producing alcohol fuel, comprises the following steps:
Step 1, the pre-treatment of raw material: first corn stalk raw material is carried out removal of impurities, then with pulverizer, fragmentation is carried out to maize straw, be crushed to 10 ~ 20 orders, by it in certain density H
2sO
4middle immersion, after filtration, carries out hot steam explosion treatment in the device of certain air pressure, and after maize raw material pre-treatment, two portions raw material of the solid phase obtained and liquid phase, takes the method for solid state fermentation, liquid state fermentation respectively, carries out simultaneously;
Step 2, adds the hydrolyzate of hot wash solubility to pretreated raw material, add the Ca (OH) of 0.1mol/L
2carry out detoxification, filter, regulate pH to 4.5 ~ 5.5;
Step 3, solid-liquid separation, filtration, obtain water lotion and filter residue; The water lotion of the detoxification obtained is concentrated, is adjusted to the state of suitable fermentation;
Step 4, according to raw material form after treatment, takes the method that solid state fermentation, liquid state fermentation are parallel; Liquid state fermentation: prepare yeast starter liquid, by shehatae candida bacterial classification access seed culture medium, controls shehatae candida seed liquor OD
600value is 0.8 ~ 1.0; The water lotion detoxification obtained concentrated is in liquid state fermentation and distill in the novel mixer that unites two into one and carry out liquid state fermentation, and add the yeast starter liquid of above-mentioned preparation, inoculum size is 5%, ferment, gas blow mixing, leavening temperature is 38 DEG C, fermentation time 96h;
Step 5, carries out solid state fermentation by the filter residue obtained, and at interpolation cellulase and fermentation strain, prepares yeast starter liquid, prepared by yeast starter liquid, by yeast saccharomyces cerevisiae bacterial classification access seed culture medium, controls yeast saccharomyces cerevisiae seed liquor OD
600value is 0.8 ~ 1.0, adds above-mentioned yeast starter liquid, and inoculum size is 10%, and fermenting step is produced in alcohol fuel solid state fermentation integrating device at maize straw, carries out simultaneous saccharification and fermentation, mechanical stirring, and leavening temperature is 32 DEG C, fermentation time 32h;
Step 6, distillation/rectifying: after the fermentation periods such as liquid state fermentation part are full, successively carries out distilling, rectifying; After solid fermentation Partial fermentation end cycle, carry out solid distillation, rectifying, waste liquid and residue can utilize further; Obtain alcohol fuel.
Further, H in described step 1
2sO
4levels is 0.9%, and described device internal gas pressure is 1.5 ~ 2.5MPa.
Further, described step 4, the major ingredient of the seed culture medium in liquid state fermentation is: wood sugar 10 ~ 20g/L, yeast extract paste 2.0 ~ 5.0g/L, NH
4cl1.0 ~ 2.0g/L, MgSO
47H
2o0.2 ~ 0.5g/L, KH
2pO
40.5 ~ 1.0g/L; Cultivate 16 ~ 24 hours in 28 DEG C ~ 30 DEG C;
Described step 5, the major ingredient of the seed culture medium in solid state fermentation is: glucose 10 ~ 20g/L, yeast extract paste 2.0 ~ 5.0g/L, NH
4cl1.0 ~ 2.0g/L, MgSO
47H
2o0.2 ~ 0.5g/L, KH
2pO
40.5 ~ 1.0g/L; Cultivate 16 ~ 24 hours in 28 DEG C ~ 30 DEG C.
Further, also comprise, the waste liquid that described liquid state fermentation part is left and the residue that solid state fermentation part is left can be collected, and utilization of fermenting further, produces scp feed.
This processing step link compact efficient, production are continuously, device integration is high, living contaminants is low, with short production cycle and comprehensive utilization of resources degree is high, improves yield and the throughput of ethanol.Of the present invention have following beneficial effect:
(1) for the morphological character after raw materials pretreatment, have selected applicable zymotechnique, take full advantage of the fermentable sugars contained by raw material, improve alcohol yied, achieve the utilization of the comprehensive high-efficiency of cornstalk biological matter resource.
(2) walk abreast in fermenting process at solid-liquid, two kinds of parallel zymotechniques select suitable fermented bacterium, and all employ the method for simultaneous saccharification and fermentation, simplify production link, shorten the production cycle.
(3) in liquid state fermentation link, liquid state fermentation makes liquid state fermentation process and the serialization of still-process energy run with the use of distillation mixing device, the investment of equipment is reduced, saves time and manpower.In mixing device, the appropriate design of the airflow stirring system of liquid fermentation fermentor and application, utilize the characteristic that bubble is less, stir, and can either stir more abundant, and improve dissolved oxygen amount, fermentation period be shortened greatly, enhances productivity.In addition, the time of air feed is controlled, makes thalline have the chance of " not giving birth to and bringing up breath ", and growth is faster, better.
(4) in solid state fermentation link, the maize straw used produces the cleaning box that alcohol fuel solid state fermentation integrating device is a sealing, in fermenting case, pass into sterile air, regulate the parameters such as the humidity on the temperature of fermenting case chuck and material, microorganism is grown under the environment of optimum.This device integrates mixing of materials, sterilizing, cooling inoculation four function, and as the reactor of solid state fermentation, greatly can optimize production technique, make technology more integrated, the movement stirred by controlling screw mixer of material realizes, and stir fully, it is controlled that speed is adjustable.
(5) adopting the solid-liquid fermentation manufacturing technique that walks abreast to make full use of the fermentable sugars of raw material, together with last remaining residue can be collected with waste liquid in two processes, by adding suitable strain fermentation recycling, can SCP be produced.
Accompanying drawing explanation
Fig. 1 is that the schema of alcohol fuel technique is produced in the fermentation that walks abreast of maize straw solid-liquid;
Fig. 2 is liquid state fermentation and distillation mixing device structure iron and bilateral tracheae principle schematic;
Number in the figure: 1-discharge port; 2-pH interface; 3-temperature-measuring port; 4-chuck is suitable for reading; 5-material-feeding port; 6-air outlet; 7-gauge port; The narrow meshed annulus A of 8-inlet mouth 9-; 10-electric heating tube; The narrow meshed annulus B of 11-; 12-chuck end opening; 20-refrigerating unit; 21-coil inlet; 22-storage tank; 23-cooling water inlet; 24-cooling water outlet; F1-ball valve; F2-needle-valve; F3-diaphragm valve; F4-operated pneumatic valve; F5-check valve; F6-F9-stopping valve;
Fig. 3 is ventpipe production well distribution plan;
Fig. 4 is that maize straw produces alcohol fuel solid state fermentation integrating device;
Number in the figure: 31-opening for feed; 32-venting port; 33-bacterium liquid mouth spray; 34-chuck is suitable for reading; 35-chuck; The hollow stirring rake of 36-; 37-hollow blade pore; 38-condensation-water drain; 39-outlet, steam inlet; 40-screw mixer; 41-sealed fermenting tank body; 42-chuck end opening; 43-inner-spiral type agitator; 44-external spiral formula agitator; 45-fixed link; 46-variable-speed motor drive unit; 47-ethanol distillation pipeline; 48-condenser; 49-ethanol holding tank; F10-check valve; F11-stopping valve.
Embodiment
The invention provides the fermentation that walks abreast of a kind of maize straw solid-liquid and produce alcohol fuel technique and device, below in conjunction with the drawings and specific embodiments, technique of the present invention and device are described further.
As Fig. 1, the fermentation that walks abreast of maize straw solid-liquid is produced alcohol fuel technique key step and is comprised: the pre-treatment of raw material, boiling, washing, solid-liquid separation, the liquid phase feed obtained after process is adopted the method ethanol production of liquid state fermentation and simultaneous saccharification and fermentation, the Solid raw materials obtained after process is adopted the method for solid state fermentation and simultaneous saccharification and fermentation, and by residue remaining for two processes and waste collection, carry out second stage employ, produce alcohol fuel through distillation, rectifying.Concrete steps are as follows:
(1) corn stalk raw material is carried out pre-treatment, with pulverizer, fragmentation is carried out to maize straw again after removal of impurities, be crushed to 10 ~ 20 orders, by it in 0.9%H
2sO
4middle immersion, after filtration, carries out hot steam explosion treatment in 1.5 ~ 2.5MPa device;
(2) pretreated raw material is added to the hydrolyzate of hot wash solubility, add the Ca (OH) of 0.1mol/L
2carry out detoxification, filter, regulate pH to 4.5 ~ 5.5; After having operated, carry out solid-liquid separation, filtration, obtain water lotion and filter residue.The water lotion of the detoxification obtained is concentrated, is adjusted to the state of suitable fermentation;
(3) prepare yeast starter liquid, by shehatae candida (CandidaShehatae) bacterial classification access seed culture medium, the major ingredient of this seed culture medium is: wood sugar 10 ~ 20g/L, yeast extract paste 2.0 ~ 5.0g/L, NH
4cl1.0 ~ 2.0g/L, MgSO
47H
2o0.2 ~ 0.5g/L, KH
2pO
40.5 ~ 1.0g/L; Cultivate in 28 DEG C ~ 30 DEG C and control shehatae candida seed liquor OD in 16 ~ 2 hours
600value is 0.8 ~ 1.0;
Step (4) below, (5) by respectively stalk produce alcohol fuel liquid state fermentation and distillation mixing device (authorize, application number: 201420830100.2) and maize straw produce in alcohol fuel solid state fermentation integrating device and realize.
(4) according to raw material form after treatment, the method that solid state fermentation, liquid state fermentation are parallel is taked.Liquid state fermentation device is the novel mixer that fermentation equipment and ethanol distillation equipment unite two into one, see Fig. 2.Inlet mouth 8 is positioned at the top of tank body cylinder, be connected with air-distributor lower outside narrow meshed annulus A9, narrow meshed annulus B11 in tank, thermostat(t)ed water import chuck end opening 12 is in tank chuck bottom, chuck thermostat(t)ed water outlet chuck suitable for reading 4 is on tank chuck top, electric heating tube 10 is in the middle part of fermentor tank, and material-feeding port 5, air outlet 6 and gauge port 7 are in tank top.Gas passes into from inlet mouth 8, and flowed out by the aperture of lower outside narrow meshed annulus A9, narrow meshed annulus B11 lower outside, the gas circulating of being ventilated by interval type is reached fermented liquid oxygen supply, uniform stirring, and fermented liquid is fully fermented.During distillation, liquefaction ethanol from fermentor tank air outlet 6 out, enters into refrigerating unit 20 coil inlet 21, and flow in storage tank 22 through coil pipe, water coolant enters refrigerating unit 20 from entrance 23, then flows out from the cooling water outlet 24 of refrigerating unit 20, gets back to cooling-water machine.Ventpipe production well distribution plan is see Fig. 3, and the principle schematic of bilateral tracheal flow flowing is see the dotted line signal in Fig. 2.
(5) solid-state fermentation installation is that maize straw produces alcohol fuel solid state fermentation integrating device, participate in Fig. 4, opening for feed 31 is connected with sealed fermenting tank body 41, opening for feed 31 is positioned at above tank body, and adopt mechanical seal between tank body 41, pretreated raw material enters sealed fermenting tank body 41 through opening for feed 31, chuck thermostat(t)ed water inlet union chuck end opening 42 is in the bottom of tank chuck side, chuck thermostat(t)ed water outlet chuck suitable for reading 34 is on the top of tank chuck opposite side, tank interior built-in screw type agitator 40, screw mixer 40 comprises inner-spiral type agitator 43, external spiral formula agitator 44 and hollow stirring rake 36, screw mixer oar 36 is hollow, and be distributed with pore 37, hollow stirring rake 36 1 side ports is high-temperature steam and Tempeerature-constant air import, after raw material enters, from the import of hollow stirring rake 36 port, high-temperature steam is passed into hollow blade, enter in tank through pore 37 comprehensively and sterilising treatment is carried out to raw material, after having processed, during cooling, logical water coolant in chuck 35, export from tank body lower part simultaneously, steam inlet 39 passes into aseptic cooling air in tank body, discharge from the venting port 32 on top, aseptic cooling air passes into from blade inside through the import of hollow stirring rake 36 port simultaneously in tank body, under the effect that screw mixer 40 stirs, reach the object of cooling fast.After having cooled, by bacterium liquid mouth spray 33 to raw material spray zymocyte liquid in tank, under the stirring action that screw mixer 40 stirs, abundant high-efficiency inoculating; After inoculation, the water management pot temperature of logical proper temperature in chuck 35, the output shaft of variable-speed motor drive unit 46 is connected with screw mixer 40, driving screw mixer rotates, during rotation, material advances left by inner-spiral type agitator 43, material advances to the right by external spiral formula agitator 44, completes the stirring needed for fermentation.During distillation, the alcohol vapour of collection from fermentor tank air outlet F1 out, through pipeline 47, during by condenser 48, is condensed into liquid state by liquefaction ethanol, utilizes downward-sloping near a segment pipe of ethanol holding tank 49 of condenser 48, flows in ethanol holding tank 49.Liquid state fermentation link obtains alcohol fuel through rectifying complete reaction in fermentation with distillation mixing device after; Solid state fermentation link, after maize straw is produced and completed reaction in alcohol fuel solid state fermentation integrating device, through solid distillation, rectifying, obtains alcohol fuel.The waste liquid that two portions are left adds suitable fermented bacterium together with collecting with residue, after fermentation, produce SCP.
The each mouth of pipe of described device, connecting portion, fermentation tank and distillation plant; Junction all adopts and is tightly connected.
Described maize straw produces alcohol fuel solid state fermentation integrating device by multifunctional containment fermentor tank with water distilling apparatus is in sequential series forms, sealing and fermenting tank can complete the mixing of material, sterilizing, cooling, inoculation four operations, and can as fermentation reaction container.After having fermented, in chuck, pass into high-temperature water can distill ethanol.
Described maize straw is produced in alcohol fuel solid state fermentation integrating device, and the rotating speed of screw mixer is adjustable between 0.05 ~ 0.5rpm, to change material stirring degree.The each mouth of pipe of described device, connecting portion, fermentation tank and distillation plant; Junction all adopts and is tightly connected, and ensures the sealing effectiveness running whole process, reduces living contaminants.
To sum up, the present invention relates to a kind of maize straw solid-liquid walk abreast fermentation produce alcohol fuel technique and device, processing step comprises (1), and raw material carries out pre-treatment, removal of impurities, pulverizing, immersion dilute sulphuric acid, high-temperature steam explosion treatment, add hot wash soluble hydrolysate, and carry out solid-liquid separation process, obtain juice and the stalk slag of maize straw; (2) liquid state fermentation is carried out to straw juice: the concentrated state being adjusted to applicable liquid state fermentation, adds ethanol fermentation bacterial strain, ferment, and distillation and rectifying, obtain alcohol fuel; (3) carry out solid state fermentation to stalk slag: the interpolation of cellulase and fermented bacterium, simultaneous saccharification and fermentation, solid state distillation, rectifying, obtains alcohol fuel.Wherein, complete continuously in the novel mixer that liquid state fermentation process unites two into one at liquid state fermentation equipment and ethanol distillation equipment, solid state fermentation step is produced in alcohol fuel solid state fermentation integrating device at maize straw and is completed.The present invention, by by pretreated raw material solid-liquid separation, for the raw material of two kinds of different shapes, adopts the technique of solid-state, liquid parallel fermentation respectively, makes full use of fermentable sugars in stalk and divide, avoid the waste of resource, improve alcohol yied; Adopt liquid state fermentation and distill the novel mixer united two into one, optimizing the mode of production, achieve the serialization of liquid state fermentation; Adopt maize straw to produce alcohol fuel solid state fermentation integrating device, integrate the mixing of material, sterilizing, cooling, inoculation and solid state fermentation five step operation, and combine with distillation, continuously ferment, change traditional production ways.Compared with prior art, the present invention has that fermentable sugars utilization ratio is high, production technique link is compact, integrated, efficient, with short production cycle, alcohol yied advantages of higher.
In the description of this specification sheets, specific features, structure, material or feature that the description of reference term " embodiment ", " some embodiments ", " illustrative examples ", " example ", " concrete example " or " some examples " etc. means to describe in conjunction with this embodiment or example are contained at least one embodiment of the present invention or example.In this manual, identical embodiment or example are not necessarily referred to the schematic representation of above-mentioned term.And the specific features of description, structure, material or feature can combine in an appropriate manner in any one or more embodiment or example.
Although illustrate and describe embodiments of the invention, those having ordinary skill in the art will appreciate that: can carry out multiple change, amendment, replacement and modification to these embodiments when not departing from principle of the present invention and aim, scope of the present invention is by claim and equivalents thereof.
Claims (9)
1. a maize straw solid-liquid walks abreast and produces the device of alcohol fuel, comprise stalk and produce alcohol fuel liquid state fermentation and distillation mixing device, for completing liquid state fermentation and still-process, it is characterized in that: also comprise maize straw and produce alcohol fuel solid state fermentation integrating device, for completing solid state fermentation and still-process;
Described maize straw is produced alcohol fuel solid state fermentation integrating device and is comprised sealed fermenting tank body (41), ethanol distillation pipeline (47) and ethanol holding tank (49), is connected between described sealed fermenting tank body (41) and ethanol holding tank (49) with ethanol distillation pipeline (47); Described ethanol distillation pipeline (47) is equipped with condenser (48) and check valve (F10), stopping valve (F11) is equipped with in the bottom of described ethanol holding tank (49);
The top of described sealed fermenting tank body (41) has opening for feed (31), the both sides of opening for feed (31) are respectively equipped with venting port (32) and bacterium liquid mouth spray (33), and the bottom of described sealed fermenting tank body (41) is provided with condensation-water drain (38) and outlet, steam inlet (39); The surrounding of described sealed fermenting tank body (41) is equipped with chuck (35); The inside of described sealed fermenting tank body (41) is provided with screw mixer (40);
Described screw mixer (40) comprises inner-spiral type agitator (43), external spiral formula agitator (44) and hollow stirring rake (36), described inner-spiral type agitator (43), external spiral formula agitator (44) are fixed on hollow stirring rake (36) by fixed link (45), the multiple hollow blade pore (37) of the upper distribution of described hollow stirring rake (36); Sealed fermenting tank body (41) is all stretched out in the both sides of hollow stirring rake (36), and the end of the hollow stirring rake in side is provided with hollow stirring rake import, can pass into high-temperature steam or aseptic freezing air; The end of the hollow stirring rake of opposite side is connected with the output shaft of variable-speed motor drive unit (46), for driving screw mixer (40).
2. a kind of maize straw solid-liquid according to claim 1 walks abreast and produces the device of alcohol fuel, it is characterized in that, chuck (35) lower end, described sealed fermenting tank body (41) side is provided with chuck end opening (42), the water of differing temps can be passed into toward chuck from chuck end opening (42), sealed fermenting tank body (41) opposite side chuck (35) upper end is provided with chuck (34) suitable for reading, as the outlet passing into differing temps water in chuck.
3. a kind of maize straw solid-liquid according to claim 1 walks abreast and produces the device of alcohol fuel, it is characterized in that, in described ethanol distillation pipeline (47), condenser (48) is near one section of downward-sloping certain angle of ethanol holding tank (49).
4. a kind of maize straw solid-liquid according to claim 1 walks abreast and produces the device of alcohol fuel, it is characterized in that, when hollow stirring rake (36) rotates, material advances left by described inner-spiral type agitator (43), and material advances to the right by described external spiral formula agitator (44).
5. a kind of maize straw solid-liquid according to claim 1 walks abreast and produces the device of alcohol fuel, it is characterized in that, described variable-speed motor drive unit (46) drives screw mixer (40) work, rotating speed between 0.05 ~ 0.5rpm, to change material stirring degree.
6. any one maize straw solid-liquid as described in claim 1 to 5 walks abreast the processing method of the device producing alcohol fuel, it is characterized in that, comprises the following steps:
Step 1, the pre-treatment of raw material: first corn stalk raw material is carried out removal of impurities, then with pulverizer, fragmentation is carried out to maize straw, be crushed to 10 ~ 20 orders, by it in certain density H
2sO
4middle immersion, after filtration, carries out hot steam explosion treatment in the device of certain air pressure, and after maize raw material pre-treatment, two portions raw material of the solid phase obtained and liquid phase, takes the method for solid state fermentation, liquid state fermentation respectively, carries out simultaneously;
Step 2, adds the hydrolyzate of hot wash solubility to pretreated raw material, add the Ca (OH) of 0.1mol/L
2carry out detoxification, filter, regulate pH to 4.5 ~ 5.5;
Step 3, solid-liquid separation, filtration, obtain water lotion and filter residue; The water lotion of the detoxification obtained is concentrated, is adjusted to the state of suitable fermentation;
Step 4, according to raw material form after treatment, takes the method that solid state fermentation, liquid state fermentation are parallel; Liquid state fermentation: prepare yeast starter liquid, by shehatae candida bacterial classification access seed culture medium, controls shehatae candida seed liquor OD
600value is 0.8 ~ 1.0; The water lotion detoxification obtained concentrated is in liquid state fermentation and distill in the novel mixer that unites two into one and carry out liquid state fermentation, and add the yeast starter liquid of above-mentioned preparation, inoculum size is 5%, ferment, gas blow mixing, leavening temperature is 38 DEG C, fermentation time 96h;
Step 5, carries out solid state fermentation by the filter residue obtained, and at interpolation cellulase and fermentation strain, prepares yeast starter liquid, prepared by yeast starter liquid, by yeast saccharomyces cerevisiae bacterial classification access seed culture medium, controls yeast saccharomyces cerevisiae seed liquor OD
600value is 0.8 ~ 1.0, adds above-mentioned yeast starter liquid, and inoculum size is 10%, and fermenting step is produced in alcohol fuel solid state fermentation integrating device at maize straw, carries out simultaneous saccharification and fermentation, mechanical stirring, and leavening temperature is 32 DEG C, fermentation time 32h;
Step 6, distillation/rectifying: after the fermentation periods such as liquid state fermentation part are full, successively carries out distilling, rectifying; After solid fermentation Partial fermentation end cycle, carry out solid distillation, rectifying, waste liquid and residue can utilize further; Obtain alcohol fuel.
7. walk abreast according to a kind of maize straw solid-liquid according to claim 6 the processing method of the device producing alcohol fuel, and processing method, is characterized in that: H in described step 1
2sO
4levels is 0.9%, and described device internal gas pressure is 1.5 ~ 2.5MPa.
8. walk abreast according to a kind of maize straw solid-liquid according to claim 6 the processing method of the device producing alcohol fuel, it is characterized in that:
Described step 4, the major ingredient of the seed culture medium in liquid state fermentation is: wood sugar 10 ~ 20g/L, yeast extract paste 2.0 ~ 5.0g/L, NH
4cl1.0 ~ 2.0g/L, MgSO
47H
2o0.2 ~ 0.5g/L, KH
2pO
40.5 ~ 1.0g/L; Cultivate 16 ~ 24 hours in 28 DEG C ~ 30 DEG C;
Described step 5, the major ingredient of the seed culture medium in solid state fermentation is: glucose 10 ~ 20g/L, yeast extract paste 2.0 ~ 5.0g/L, NH
4cl1.0 ~ 2.0g/L, MgSO
47H
2o0.2 ~ 0.5g/L, KH
2pO
40.5 ~ 1.0g/L; Cultivate 16 ~ 24 hours in 28 DEG C ~ 30 DEG C.
9. walk abreast according to a kind of maize straw solid-liquid according to claim 6 the processing method of the device producing alcohol fuel, it is characterized in that: also comprise, the waste liquid that described liquid state fermentation part is left and the residue that solid state fermentation part is left can be collected, and utilization of fermenting further, produces scp feed.
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| CN107365663A (en) * | 2017-09-14 | 2017-11-21 | 重庆星湖茶酒厂 | The fermentation process of tea wine |
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| CN110552223A (en) * | 2019-08-01 | 2019-12-10 | 四川金象赛瑞化工股份有限公司 | method for preparing furfural co-production fiber board by extracting xylose from reed through steam explosion |
| CN110549456A (en) * | 2019-08-01 | 2019-12-10 | 四川金象赛瑞化工股份有限公司 | Method for preparing furfural and co-producing glue-free fiberboard from reed |
| CN110552223B (en) * | 2019-08-01 | 2021-06-04 | 四川金象赛瑞化工股份有限公司 | Method for preparing furfural co-production fiber board by extracting xylose from reed through steam explosion |
| CN110549456B (en) * | 2019-08-01 | 2021-09-28 | 四川金象赛瑞化工股份有限公司 | Method for preparing furfural and co-producing glue-free fiberboard from reed |
| CN110317701A (en) * | 2019-08-24 | 2019-10-11 | 湖南溆浦湘妃酒业有限责任公司 | Continuously fermented the production method and system of technology brewing wine of fruit of cherokee rose based on low temperature |
| CN110317701B (en) * | 2019-08-24 | 2024-03-22 | 湖南溆浦湘妃酒业有限责任公司 | Production method and system for brewing cherokee rose fruit wine based on low-temperature continuous fermentation technology |
| CN114656993A (en) * | 2022-03-31 | 2022-06-24 | 赵维伟 | Method for producing liquid fuel by using biomass |
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