CN101525637A - Method for cleanly producing potato ethanol with low viscosity - Google Patents
Method for cleanly producing potato ethanol with low viscosity Download PDFInfo
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- CN101525637A CN101525637A CN200910058918A CN200910058918A CN101525637A CN 101525637 A CN101525637 A CN 101525637A CN 200910058918 A CN200910058918 A CN 200910058918A CN 200910058918 A CN200910058918 A CN 200910058918A CN 101525637 A CN101525637 A CN 101525637A
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Abstract
The invention provides a method for cleanly producing potato alcohol with low viscosity, which is used for hydrolysis fermentation treatment of potato material, and belongs to the technical field of production hydrolysis fermentation engineering of the alcohol. The method comprises seven steps, namely hydrolysis activation treatment and sterilization treatment of fresh potatoes and dried potatoes, activation treatment and sterilization treatment of reacting water, pre-fermentation treatment of potato pulp, normal temperature hydrolysis main fermentation treatment, liquid and solid separation treatment of swort, after fermentation treatment of swort sludge, and raw distillation and rectification of wine liquor. The invention realizes the process for cleanly producing potato alcohol with low viscosity, avoids a stewing process in fermentation after stewing hydrolysis in the prior art, realizes normal temperature synchronous hydrolysis fermentation under low viscosity, and saves energy consumption; through the processes of main fermentation and after fermentation, the aim that the utilization rate of starch reaches over 90 percent can be realized; and the swort can be mechanically separated into the swort sludge directly. The wine liquor directly obtained after the after fermentation and the swort sludge used as feed solve the problem of waste sludge in the prior art; and alcohol through raw distillation and rectification reaches 95 percent, while suspended substance (SS) of bottom liquid is 1 percent of that in the prior art, so that recycling is possible. The whole producing process is clean production.
Description
Technical field:
A kind of method for cleanly producing potato ethanol with low viscosity, the produced amylolysis ferment that is used for potato class material is handled, and belonging to the potato raw starch is raw material production alcoholic acid hydrolysed ferment field of engineering technology.
Background technology:
Existing potato class production alcoholic acid technology is by carrying out the fermentative production distiller's wort again after the boiling that comprises high temperature and middle temperature, gelatinization, liquefaction, the saccharification, liquid-solid again separation after directly distiller's wort slightly being heated up in a steamer again, its wine liquid rectifying again becomes ethanol, its technical process is as follows: earlier potato raw material is processed into the powder slurry, then it is carried out boiling, make its gelatinization and liquefaction, adding saccharifying enzyme then makes it become fermentable sugar, add therein then by yeast and ferment, slightly steam again and smart the steaming through the mature seed that obtains that spreads cultivation.There is following problem and shortage in technology at present: 1, digestion process power consumption water consumption; 2, liquefaction, saccharification separate with fermenting process to be carried out; 3, separate again after directly slightly heating up in a steamer after the fermentation, make utilizations of can't fermenting once more of starch in the vinasse, formation waste residue environmental protection treatment difficulty; 4, the waste liquid that slightly heats up in a steamer after the rectifying is difficult to reclaim; 5, whole process flow is longer, and is not easy miniaturization.
Summary of the invention:
The objective of the invention is problem at the deficiencies in the prior art and existence, utilize the enzyme kinetics ultimate principle of starch slurry biological respinse and the thermodynamics basic skills of ordinary-temp hydrolysis fermentation running balance to invent a kind of low viscosity production technique, realized the clean preparation method of high starch utilization ratio characteristics and environmental protection characteristics.
The present invention is achieved in that potato class low viscosity clean preparation method of the present invention comprises following production process composition:
1. dried activation treatment and the germicidal treatment of carrying out of bright potato and potato; 2. the activation treatment of reaction water and germicidal treatment; 3. the pre-fermentative processing of potato slurry; 4. the ordinary-temp hydrolysis Primary Fermentation is handled; 5. the liquid-solid separating treatment of distiller's wort; 6. the wort sludge secondary fermentation is handled; 7. wine liquid slightly heats up in a steamer rectification process.
The present invention includes following processing step:
The first step aquatic foods potato and potato dry powder are situated between and see activation and germicidal treatment: in this step, utilization powder molecular cluster energy-structure improves technology its energization is activated utilization ozone sterilizing method to its sterilization;
Jie of the second step reaction water sees activation and germicidal treatment: in this step, utilization fluid molecule cluster energy-structure improves technology to its energization activation treatment, and utilization nanometer silver titanium dioxide method is to its sterilization;
The pre-fermentative processing of the 3rd step potato slurry: the solid-to-liquid ratio with 1.2 to 1.4 forms potato slurry normal temperature and adds composite hydrolytic enzyme and yeast down, sugar in the potato slurry is fermented one step ahead and increases the zymic breeding, realizes the low viscosity state of potato slurry;
The synchronous hydrolysed ferment Primary Fermentation of the 4th step normal temperature is handled: normal temperature adds composite hydrolytic enzyme and yeast down, and by the low viscosity state of hydrolysed ferment running balance maintenance potato slurry, end reaction generates the distiller's wort greater than 10% ethanol content;
The liquid-solid separating treatment of the 5th step distiller's wort: the distiller's wort that Primary Fermentation is obtained adopts mechanical separation method to tell mash and wort sludge, and mash directly enters and slightly heats up in a steamer and rectifying, and wort sludge directly enters secondary fermentation;
The wort sludge secondary fermentation of the 6th step is handled: in the secondary fermentation process wort sludge is continued to add certain activated water catalystic, fermentative, the distiller's wort slag direct mechanical that the reaction back generates is separated, and its wine liquid enters and slightly heats up in a steamer distillation system; Schlempe drying process is made slag charge and is reclaimed its ethanol;
The 7th step slightly heated up in a steamer and slightly heats up in a steamer process: wine liquid slightly heated up in a steamer slightly heats up in a steamer, form the product of ethanol content 95%, and liquid 80% above reuse at the bottom of the Xian that is produced, remaining handles the back discharging.
The composite hydrolytic enzyme that adopts in implementing production method of the present invention is through mutagenesis screening, thereby possess rotation and vibrational level feature and have the multifunctional microbial prozyme sort of quyi of higher affinity interaction, contain the amylolytic enzyme that can make living starch efficiently resolve into monose fast; The yeast that adopts is that the composite hydrolytic enzyme with this process using is complementary and can implements the extraordinary yeast of hydrolysis and fermentation running balance at normal temperatures.
Characteristics of the present invention and beneficial effect are: in this zymotechnique, saccharification and fermentation are carried out synchronously, the glucose that saccharification obtains can be utilized by yeast at once, this treating processes has been removed all high temperature steamings and low temperature boiling process from, starch is not by gelatinization, thereby the production technique that guarantees is a low viscosity production technique, and the alcohol concn after the fermentation can play the purpose of a large amount of save energy more than 10%; Fermenting process carries out mash under 25 ° to 35 ℃ normal temperature state directly separates before slightly heating up in a steamer, the wort sludge that obtains is moisture can proceed hydrolysed ferment below 70% through separating, can realize hydrolysed ferment to residual starch, starch reuse factor wherein reaches more than 80%, thereby the starch utilization ratio of whole production technology is reached more than 95%.The waste liquid of this technology can most of reuse, and small part is handled the back discharging, is the environment-protecting clean production technique.
Specific implementation method: followingly further processing step of the present invention is described in detail, the present invention includes following technology content:
The first step aquatic foods potato and potato dry powder are situated between and see activation and germicidal treatment: in this step, utilization powder molecular cluster energy-structure improves technology its energization is activated utilization ozone sterilizing method to its sterilization; And described powder molecular cluster energy-structure improvement technology is with mechanical jordaning and abrasive dust technology bright potato and potato to be done to pulverize at normal temperatures, and its particle is reached more than 80 orders.
Jie of the second step reaction water sees activation and germicidal treatment: in this step, utilization fluid molecule cluster energy-structure improves technology to its energization activation treatment, and utilization nanometer silver titanium dioxide method is to its sterilization; And described fluid molecule cluster energy-structure improvement technology is the gradient magnetic that liquid passes through 5000 to 8000 Gausses at normal temperatures, makes its dissolved oxygen ability improve more than 30%.
The pre-fermentative processing of the 3rd step potato slurry: form the potato slurry with 1: 2 to 1: 4 solid-to-liquid ratio, normal temperature adds composite hydrolytic enzyme and yeast down, sugar in the potato slurry is fermented one step ahead and increases the zymic breeding, realizes the low viscosity state of potato slurry; The pre-fermentation of potato slurry is carried out under normal temperature (25 ℃ to 35 ℃), and its reducing sugar is controlled within 1.5%, enters Primary Fermentation within 24 hours.
The synchronous hydrolysed ferment Primary Fermentation of the 4th step normal temperature is handled: normal temperature adds composite hydrolytic enzyme and yeast down, and by the low viscosity state of hydrolysed ferment running balance maintenance potato slurry, end reaction generates the distiller's wort greater than 10% ethanol content; In the Primary Fermentation process, its temperature is controlled under (28 ℃ to 33 ℃) carries out, and its total reducing sugar is controlled at below 3%, and its potential of hydrogen is controlled at Ph3.0 to pH6.0
The liquid-solid separating treatment of the 5th step distiller's wort: the distiller's wort that Primary Fermentation is obtained adopts mechanical separation method to tell mash and wort sludge, and mash directly enters and slightly heats up in a steamer and rectifying, and wort sludge directly enters secondary fermentation; Its wort sludge is moisture to be controlled at below 70%, and the reaction water that adds equivalent again enters the secondary fermentation process; The suspended substance of its mash (SS) is controlled to enter below the 500mg/L and slightly heats up in a steamer rectifying.
The wort sludge secondary fermentation of the 6th step is handled: in the secondary fermentation process wort sludge is continued to add certain reaction water catalystic, fermentative, the distiller's wort slag direct mechanical that the reaction back generates is separated, and its wine liquid enters and slightly heats up in a steamer distillation system; Schlempe drying process is made slag charge and is reclaimed its ethanol; Its schlempe drying forms moisture 15% slag charge and can be used as the feed aggregate, and the suspended substance of its wine liquid (SS) is controlled at below the 500mg/L, enters and slightly heats up in a steamer rectifying.
The 7th step was slightly heated up in a steamer rectifying: wine liquid slightly heated up in a steamer rectifying, forms the product of ethanol content 95%, and the kettle base solution 80% above reuse that is produced, remaining handles the back discharging.It slightly heats up in a steamer process and rectifying carries out in the thermal cycling process.What the waste heat of rectifying was used for slightly heating up in a steamer heats.
Produce the alcoholic acid examples of implementation with Ipomoea batatas:
The first step is carried out activation treatment and germicidal treatment to Ipomoea batatas
Earlier with Ipomoea batatas with the powder structure energy-structure improvement technology sight activation treatment that is situated between, increase the affinity interaction of its reactant;
2. with the ozone sterilization technology sweet potato powder is carried out sterilization again; And reach oxygenation effect in the powder.
Second step was carried out activation treatment and germicidal treatment to reaction water
Earlier with reaction water (comprising bright water and reuse water) with the fluid molecule cluster energy-structure improvement technology sight activation treatment that is situated between, increase its dissolved oxygen ability and activity;
2. use nanometer silver titanium dioxide sterilization technology that reaction water (comprising bright water and reuse water) is carried out comprehensively killing again;
The pre-fermentative processing of the 3rd step sweet potato paste
1. form sweet potato paste with 1.2 to 1.4 solid-to-liquid ratio;
2. the temperature that makes sweet potato paste is at 28 ℃ to 35 ℃;
3. add composite hydrolytic enzyme and yeast;
4. stirring system is worked under fast state;
5. measured temperature in per four hours, temperature is controlled at 30 ℃ to 32 ℃
6. measured potential of hydrogen in per four hours, potential of hydrogen is controlled at Ph3.6 to 4.5
7. surveyed reducing sugar, and be controlled at below 1% in per four hours;
8. be controlled at total time within 24 hours;
The Primary Fermentation of the 4th step sweet potato paste is handled
1. add composite hydrolytic enzyme and yeast;
2. stirring system is being worked under the state at a slow speed;
3. measured temperature in per eight hours, temperature is controlled at 30 ℃ to 32 ℃;
4. measured potential of hydrogen in per eight hours, potential of hydrogen is controlled at pH3.6 to 4.5;
5. be controlled at total time within 72 hours to 96 hours;
6. measured residual total reducing sugar and reducing sugar in per eight hours, its reducing sugar is controlled at below 3%, and reducing sugar is controlled at below 1%;
7. after Primary Fermentation enters 72 hours, it is risen sour amplitude every two hours test, when a liter sour amplitude reaches 1.8 times, finish the Primary Fermentation process.
8. Primary Fermentation resultant distiller's wort ethanol content reaches more than 10% and enters liquid-solid separation system and carries out mechanical separation;
The liquid-solid separating treatment of the 5th step distiller's wort
1. the distiller's wort that will enter liquid-solid separation system separates at normal temperatures, forms liquid mash and wort sludge;
2. the suspended substance of mash (SS) content is controlled at below the 500mg/L, enters the mash storage tank and prepares slightly to heat up in a steamer;
3. wort sludge is moisture is entering the secondary fermentation system below 70%;
The wort sludge secondary fermentation of the 6th step is handled
1. the secondary fermentation system of mash being packed into also adds the reaction water of equivalent;
2. in the secondary fermentation process, measure temperature in per eight hours, and be controlled at 30 ℃ to 33 ℃;
3. in the secondary fermentation process, measured potential of hydrogen and be controlled at pH4.5 to pH5.1 in per eight hours;
4. in the secondary fermentation process, its residual total reducing sugar and reducing sugar tested in per eight hours, be controlled at respectively within 2% and 1%;
5. after secondary fermentation enters 72 hours, yeast concn is per hour tested, when yeast concn finishes secondary fermentation during less than 0.5 * 108/ milliliter;
6. the wort sludge of secondary fermentation is entered liquid-solid separation system and carry out mechanical separation;
7. the mash suspended substance (SS) after separating is within 500mg/L and enter the mash storage tank and prepare slightly to heat up in a steamer;
8. wort sludge is moisture after separating makes the feed aggregate at the slag charge that can dry be separated into moisture 15% below 70%, and the wine liquid of dried recovered can directly enter rectifying;
The 7th step wine liquid slightly heats up in a steamer rectification process
1. the mash in the wort cylinder is slightly heated up in a steamer by topping still;
2. the 50% ethanol wine liquid that contains after slightly heating up in a steamer enters rectifying tower and slightly heats up in a steamer, and forms 95% alcohol product after the rectifying, and the moisture distilled water that becomes of institute can be for quoting;
3. slightly heat up in a steamer the last kettle base solution suspended substance (SS) of wine liquid within 500mg/L, 80% through becoming the reaction water of sweet potato paste after liquid activation and the disinfection system.The 20%th, but the organic water energy of high density is handled.
Claims (11)
1, method for cleanly producing potato ethanol with low viscosity is characterized in that: production method is finished by following steps:
The first step aquatic foods potato and potato dry powder are situated between and see activation and germicidal treatment: in this step, utilization powder molecular cluster energy-structure improves technology its energization is activated utilization ozone sterilizing method to its sterilization;
Jie of second step reflection water sees activation and germicidal treatment: in this step, utilization fluid molecule cluster energy-structure improves technology to its energization activation treatment, and utilization nanometer silver titanium dioxide method is to its sterilization;
The pre-fermentative processing of the 3rd step potato slurry: form the potato slurry with 1: 2 to 1: 4 solid-to-liquid ratio, normal temperature adds composite hydrolytic enzyme and yeast down, sugar in the potato slurry is fermented one step ahead and increases the zymic breeding, realizes the low viscosity state of potato slurry;
The synchronous hydrolysed ferment Primary Fermentation of the 4th step normal temperature is handled: normal temperature adds composite hydrolytic enzyme and yeast down, and by the low viscosity state of hydrolysed ferment running balance maintenance potato slurry, end reaction generates the distiller's wort greater than 10% ethanol content;
The liquid-solid separating treatment of the 5th step distiller's wort: the distiller's wort that Primary Fermentation is obtained adopts mechanical separation method to tell mash and wort sludge, and mash directly enters and slightly heats up in a steamer and rectifying, and wort sludge directly enters secondary fermentation;
The wort sludge secondary fermentation of the 6th step is handled: in the secondary fermentation process wort sludge is continued to add certain reaction water catalystic, fermentative, the distiller's wort slag direct mechanical that the reaction back generates is separated, and its wine liquid enters and slightly heats up in a steamer distillation system; Schlempe drying process is made slag charge and is reclaimed its ethanol;
The 7th step slightly heated up in a steamer and slightly heats up in a steamer process: wine liquid slightly heated up in a steamer rectifying, forms the product of ethanol content 95%, and the kettle base solution 80% above reuse that is produced, remaining handles the back discharging.
2, require 1 described method for cleanly producing potato ethanol with low viscosity according to letter of authorization, it is characterized in that: bright potato and potato are done and reaction water is carried out activation treatment and germicidal treatment.
3, require 1 described method for cleanly producing potato ethanol with low viscosity to be according to letter of authorization: and carry out under normal temperature (25 ℃ to 35 ℃) with the pre-fermentation that 1: 2 to 1: 4 solid-liquid ratio forms potato slurry potato slurry, directly add composite hydrolytic enzyme and yeast, form low viscosity state, make its reducing sugar be lower than 1.5%, thereby enter Primary Fermentation.
4, require 1 described method for cleanly producing potato ethanol with low viscosity to be according to letter of authorization: after entering the Primary Fermentation process, add composite hydrolytic enzyme and yeast again, fermentation is carried out under normal temperature (28 ℃ to 33 ℃), keep low viscosity state, make its residual total reducing sugar below 3%, the alcohol concn of Sheng Chenging is greater than 10% at last.
5, require 1 described method for cleanly producing potato ethanol with low viscosity to be according to letter of authorization: the distiller's wort greater than 10% ethanol content that generates after the Primary Fermentation adopts mechanical separation technology directly to be separated into mash and wort sludge; Its wort sludge is moisture to be controlled at below 70%, and the reaction water that adds equivalent again enters the secondary fermentation process; The suspended substance of its mash (SS) is controlled to enter below the 500mg/L and slightly heats up in a steamer rectifying.
6, require 1 described method for cleanly producing potato ethanol with low viscosity to be according to letter of authorization: the wort sludge that generates after the secondary fermentation is mechanical separation once more, forms wine liquid and schlempe: its schlempe drying recovered alcohol also generates moisture slag charge (aggregate capable of using as feed) below 15% with its slag; The suspended substance of its wine liquid (SS) is controlled to enter below the 500mg/L and slightly heats up in a steamer rectifying.
7, require 1 described method for cleanly producing potato ethanol with low viscosity to be according to letter of authorization: pre-fermentation, Primary Fermentation and secondary fermentation process all are low viscosity technological processs, it stirs power consumption and is controlled within per ten cubic metres of total power consumption 50 degree power consumptions of potato slurry; Its potential of hydrogen is pH3.0 to 6.0.
8, require 1 described method for cleanly producing potato ethanol with low viscosity to be according to letter of authorization: described powder molecular cluster energy-structure improvement technology is with mechanical jordaning and abrasive dust technology bright potato and potato to be done to pulverize at normal temperatures, and its particle is reached more than 80 orders.
9, require 1 described method for cleanly producing potato ethanol with low viscosity to be according to letter of authorization: described fluid molecule cluster energy improvement technology is the gradient magnetic that liquid passes through 5000 to 8000 Gausses at normal temperatures, makes its dissolved oxygen ability improve more than 30%.
10, require 1 described method for cleanly producing potato ethanol with low viscosity to be according to letter of authorization: the heat of whole process carries out in a recycle system, comprise rectifying and the heat exchange of slightly heating up in a steamer process, waste heat is to the temperature control of fermentation system, and waste heat is to the heat supply of dehumidification system.
11, require 1 described method for cleanly producing potato ethanol with low viscosity to be according to letter of authorization: the water yield of whole process is to carry out in the recycle system, comprises the kettle base solution reuse more than 80% and the reuse of water coolant.Bright water replenishes actual hydrolysis Primary Fermentation first within the water 20%, and the organic water of 20% high density can be made energy or directly raises and use behind the kettle base solution cycling use of water.
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| CN200910058918A CN101525637A (en) | 2009-04-13 | 2009-04-13 | Method for cleanly producing potato ethanol with low viscosity |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013139027A1 (en) * | 2012-03-22 | 2013-09-26 | 天津大学 | Method for producing alcohol from potato materials |
| CN104293839A (en) * | 2014-10-11 | 2015-01-21 | 吉林省博大生化有限公司 | Thick mash fermentation production process |
-
2009
- 2009-04-13 CN CN200910058918A patent/CN101525637A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013139027A1 (en) * | 2012-03-22 | 2013-09-26 | 天津大学 | Method for producing alcohol from potato materials |
| CN104293839A (en) * | 2014-10-11 | 2015-01-21 | 吉林省博大生化有限公司 | Thick mash fermentation production process |
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Open date: 20090909 |