CN105753651B - A kind of method for producing edible alcohol - Google Patents
A kind of method for producing edible alcohol Download PDFInfo
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- CN105753651B CN105753651B CN201410788668.7A CN201410788668A CN105753651B CN 105753651 B CN105753651 B CN 105753651B CN 201410788668 A CN201410788668 A CN 201410788668A CN 105753651 B CN105753651 B CN 105753651B
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Abstract
The present invention relates to a kind of method for producing edible alcohol, this method includes：A kind of method for producing edible alcohol, this method include：Corn fermentation maturation mash is subjected to rectifying by the thick tower of level-one, the thick tower of two level being set up in parallel and then carries out rectifying by stripper, purifying column, rectifying column and methanol column successively again, obtain edible alcohol, the edible alcohol is subjected to adsorption bleaching by activated carbon, diatomite successively, edible alcohol finished product is made.The thick tower of two level is added in the method for present invention production edible alcohol, and stripper is employed first compared to traditional edible alcohol production technology, so as to remove effectively the organic matters such as alcohols in mash, esters, aldehydes, the purity that alcohol is made is improved, the taste of edible alcohol can be improved by increasing activated carbon and kieselguhr adsorption decolorization process.Whole production method energy conservation and environmental protection.
Description
Technical field
The present invention relates to a kind of method for producing edible alcohol.
Background technology
In the liquor industry in China, chemical industry, rubber industry, paint industry, electronics industry, photographic film and paper
Production industry, pharmaceuticals industry, perfume industry, cosmetic industry etc. are starched, alcohol all plays an important role.According to Frost＆
The report of Sullivan, China are the third-largest edible alcohol producing countries in the whole world.Chinese alcohol output accounts for the 13.5% of the whole world,
After only coming U.S.'s (44%) and Brazilian (30%).In these products, fuel alcohol accounting is less than 10%, and edible alcohol
Account for more than 90%.Edible alcohol is increasingly subject to people's as indispensable adding ingredient in hard beverage, its quality
Pay attention to, particularly as liquor consumption big country of the world, the quality of edible alcohol quality, just seems even more important, and every in China
Standard has the impurity of health involved in alcohol a stringent content limitation, and in fermentation liquid there are substantial amounts of dryness, wave
Hair property impurity, thus dispel various impurity be the high-purity edible alcohol of production excessively middle urgent need to resolve the problem of.But production is high at present
The method presence of pure edible alcohol is not energy saving, and obtained alcohol purity is low, with evil miscellaneous taste, different smell and degree of purity difference
Defect.
Therefore, the problem of miscellaneous taste is urgent need to resolve in production process in alcohol is dispelled, mouth can be made by being badly in need of one kind now
The energy-saving production method of the good high-purity edible alcohol of taste.
The content of the invention
The purpose of the invention is to overcome in the prior art, edible alcohol purity is low, degree of purity is poor, there are peculiar smell, production
A kind of the defects of technique is not energy saving, there is provided method for producing edible alcohol.
The present inventor has found under study for action, by corn fermentation maturation mash through being set up in parallel the thick tower of level-one,
The thick tower of two level carries out rectifying and then carries out rectifying by stripper, purifying column, rectifying column and methanol column successively again, is eaten
Alcohol, carries out adsorption bleaching by activated carbon, diatomite successively by the edible alcohol, edible alcohol finished product is made, you can be made
The edible alcohol that purity is high, taste is good.Therefore, to achieve these goals, the present invention provides a kind of edible alcohol of producing
Method, this method include：Corn fermentation maturation mash is subjected to rectifying, so by the thick tower of level-one that is set up in parallel, the thick tower of two level
Carry out rectifying by stripper, purifying column, rectifying column and methanol column successively again afterwards, obtain edible alcohol, by the edible alcohol according to
It is secondary to carry out adsorption bleaching by activated carbon, diatomite, edible alcohol finished product is made.
The thick tower of two level is added in the method for present invention production edible alcohol, and is produced compared to traditional edible alcohol
Technique employs stripper first, so as to remove effectively the organic matters such as alcohols in mash, esters, aldehydes, improves and is made
The purity of alcohol, in addition, the taste of edible alcohol can be improved by increasing activated carbon and kieselguhr adsorption decolorization process.Separately
Outside, since the thick column overhead steam of increased level-one can be as the heat source of the thick tower of two level, and stripper overhead steam can be used as methanol
The heat source of tower, therefore, whole production method energy conservation and environmental protection.
Other features and advantages of the present invention will be described in detail in subsequent specific embodiment part.
Embodiment
The embodiment of the present invention is described in detail below.It is it should be appreciated that described herein specific
Embodiment is merely to illustrate and explain the present invention, and is not intended to limit the invention.
The present invention provides a kind of method for producing edible alcohol, this method includes：Corn fermentation maturation mash is passed through
The thick tower of level-one, the thick tower of two level being set up in parallel carry out rectifying and then pass through stripper, purifying column, rectifying column and methanol successively again
Tower carries out rectifying, obtains edible alcohol, and the edible alcohol is carried out adsorption bleaching by activated carbon, diatomite successively, food is made
With alcohol finished product.
In the present invention, corn fermentation maturation mash is subjected to rectifying, so by the thick tower of level-one that is set up in parallel, the thick tower of two level
Carrying out the mode of rectifying by stripper, purifying column, rectifying column and methanol column successively again afterwards can be：The thick column overhead steam of two level
Enter after cooling in stripper and carry out rectifying, then the steam of stripper overhead is passed directly into purifying column bottom of towe, from purifying column tower
Jacking tap water so that the content of ethanol is 10 volume % in tap water, which is passed through in rectifying column
Rectifying is carried out, enters methanol column after the cooling of rectifying column tower top steam, in methanol tower top separating methanol, bottom of towe obtains edible alcohol, separately
Outside, by each tower side adopt mouth outflow component enter another rectifying column in carry out rectifying, be made industrial alcohol.
Method according to the present invention, wherein, as long as can be prepared by using the above method, purity height, taste are good to be eaten
Alcohol, still, in order to enable the edible alcohol purity higher of production, taste are more preferably, it is preferable that living relative to 1kg edible alcohols
The dosage of property charcoal is 0.5g-0.7g, and diatomaceous dosage is 0.05-0.07g.
Method according to the present invention, wherein, the stripper can be the stripper of this area routine, still, be
So that the impurity in the steam of stripper overhead is less, so that obtained edible alcohol purity higher, taste be more preferably, it is excellent
Selection of land, the stripper are provided with the impurities removal pipeline that can discharge normal propyl alcohol, fusel oil and tail level impurity, the impurities removal pipeline
Quantity is 8-10.
In the present invention, the thick tower of level-one, the thick tower of two level, purifying column, rectifying column and methanol column are the equipment of this area routine,
Wherein, " level-one " and " two level " in the thick tower of level-one, the thick tower of two level be intended merely to distinguish same equipment position it is different, not
It is the restriction to thick tower species and order.
In the present invention, side Cai Kou can be provided with by each tower, in order to discharge impurity.Wherein, the side Cai Kou of each tower
Can also be connected with another rectifying column so that each tower side adopt mouth outflow component enter another rectifying column in carry out rectifying, make
Obtain industrial alcohol.
It should be appreciated by those skilled in the art, the thick tower of level-one, the thick tower of two level, stripper, purifying column, rectifying column and
Methanol column can realize that each tower removes impurity successively by controlling the condition of each tower rectifying so that obtained edible alcohol it is pure
Degree is high, taste is good.
The present invention, pressure refer to absolute pressure.
Method according to the present invention, it is preferable that the condition of rectifying includes in stripper：Tower middle portion temperature is 98-102
DEG C, tower top temperature is 80-84 DEG C, and the pressure of bottom of towe is 15-19Psia, and tower top pressure 15.2-15.6Psia, enables to give birth to
The edible alcohol purity higher of production, taste are more preferably.
Method according to the present invention, the condition of rectifying can be the rectifying bar of this area routine in the thick tower of level-one
Part, such as can include：Column bottom temperature is 106-110 DEG C, and tower top temperature is 88-92 DEG C, tower bottom pressure 21.4-
21.8Psia, tower top pressure 17.2-17.8Psia.
Method according to the present invention, the condition of rectifying can be the rectifying bar of this area routine in the thick tower of two level
Part, such as can include：Column bottom temperature is 73-77 DEG C, and tower top temperature is 63-67 DEG C, tower bottom pressure 6.8-7.2Psia, tower
Pressure on top surface is 4.3-4.7Psia.
Method according to the present invention, the condition of rectifying can be the rectifying bar of this area routine in the purifying column
Part, such as can include：Tower top temperature is 101-103 DEG C, and it should be appreciated by those skilled in the art the thick column overhead of two level
Steam cooling after be passed through in stripper and carry out rectifying, then the steam of stripper overhead is passed directly into purifying column bottom of towe, from net
Change tower top into washings so that the content of ethanol is 10-20 volumes % in washings.
Method according to the present invention, the condition of rectifying can be the rectifying bar of this area routine in the rectifying column
Part, such as can include：Column bottom temperature is 150-155 DEG C, and tower top temperature is 121-125 DEG C, tower bottom pressure 74.2-
76.2Psia, tower top pressure 66.7-68.7Psia.
Method according to the present invention, the condition of rectifying can be the rectifying bar of this area routine in the methanol column
Part, such as can include：Column bottom temperature is 57.4-57.6 DEG C, and tower top temperature is 6.39-6.59 DEG C.
Method according to the present invention, wherein, can be using the thick column overhead steam of level-one as two in order to further energy saving
The heat source of the thick tower of level.
Method stripper overhead steam according to the present invention can be as the heat source of methanol column.
In the present invention, for produce edible alcohol corn fermentation maturation mash can with the corn fermentation of this area routine into
Ripe mash, its preparation method can be the maize raw material by pre-processing, and after slurry tank spice adds amylase liquefaction, add sugar
Change enzyme and enter fermentation, in addition distiller's yeast also enters fermentation at the same time, and ripe mash is made in fermenting-ripening.
Embodiment
Method according to embodiment 1 in patent application CN103773811A prepares corn fermentation maturation mash.
Embodiment 1
The present embodiment is used for the method for the production edible alcohol for illustrating the present invention.
Corn fermentation maturation mash is subjected to rectifying by the thick tower of level-one, the thick tower of two level being set up in parallel, then again successively
Rectifying is carried out by stripper, purifying column, rectifying column and methanol column, obtains edible alcohol, wherein, in distillation process, two level
Enter after thick column overhead steam cooling in stripper and carry out rectifying, then the steam of stripper overhead is passed directly into purifying column tower
Bottom, from purification column overhead into tap water so that the content of ethanol is 10 volume % in tap water, by the 10 volume % ethanol solutions
It is passed through in rectifying column and carries out rectifying, enters methanol column after the cooling of rectifying column tower top steam, in methanol tower top separating methanol, bottom of towe obtains
Edible alcohol, in addition, by each tower side adopt mouth outflow component enter another rectifying column in carry out rectifying, be made industrial alcohol.And
The column bottom temperature for controlling the thick tower of level-one is 106 DEG C, and tower top temperature is 88 DEG C, tower bottom pressure 21.4Psia, and tower top pressure is
17.2Psia；The column bottom temperature of the thick tower of two level is 73 DEG C, and tower top temperature is 63 DEG C, tower bottom pressure 6.8Psia, and tower top pressure is
4.3Psia；The tower middle portion temperature of stripper is 98 DEG C, and tower top temperature is 80 DEG C, and the pressure of bottom of towe is 15Psia, and tower top pressure is
15.2Psia；The tower top temperature of purifying column is 101 DEG C；The column bottom temperature of rectifying column is 150 DEG C, and tower top temperature is 121 DEG C, bottom of towe
Pressure is 74.2Psia, tower top pressure 66.7Psia；The column bottom temperature of methanol column is 57.4 DEG C, and tower top temperature is 6.39 DEG C.
Then 10kg edible alcohols are subjected to adsorption bleaching by 7g activated carbons, 0.7g diatomite successively, edible alcohol finished product is made, its
In, heat source of the thick column overhead steam of level-one as the thick tower of two level, and the heat source using stripper overhead steam as methanol column, entirely
Production process energy saving 15%.
Embodiment 2
The present embodiment is used for the method for the production edible alcohol for illustrating the present invention.
Corn fermentation maturation mash is subjected to rectifying by the thick tower of level-one, the thick tower of two level being set up in parallel, then again successively
Rectifying is carried out by stripper, purifying column, rectifying column and methanol column, obtains edible alcohol, wherein, in distillation process, two level
Enter after thick column overhead steam cooling in stripper and carry out rectifying, then the steam of stripper overhead is passed directly into purifying column tower
Bottom, from purification column overhead into tap water so that the content of ethanol is 15 volume % in tap water, by the 15 volume % ethanol solutions
It is passed through in rectifying column and carries out rectifying, enters methanol column after the cooling of rectifying column tower top steam, in methanol tower top separating methanol, bottom of towe obtains
Edible alcohol, in addition, by each tower side adopt mouth outflow component enter another rectifying column in carry out rectifying, be made industrial alcohol.And
The column bottom temperature for controlling the thick tower of level-one is 108 DEG C, and tower top temperature is 90 DEG C, tower bottom pressure 21.6Psia, and tower top pressure is
17.6Psia；The column bottom temperature of the thick tower of two level is 75 DEG C, and tower top temperature is 65 DEG C, tower bottom pressure 7Psia, and tower top pressure is
4.5Psia；The tower middle portion temperature of stripper is 100 DEG C, and tower top temperature is 82 DEG C, and the pressure of bottom of towe is 17Psia, tower top pressure
For 15.4Psia；The tower top temperature of purifying column is 102 DEG C；The column bottom temperature of rectifying column is 152 DEG C, and tower top temperature is 123 DEG C, tower
Bottom pressure is 75Psia, tower top pressure 67Psia；The column bottom temperature of methanol column is 57.5 DEG C, and tower top temperature is 6.5 DEG C.Then
10kg edible alcohols are subjected to adsorption bleaching by 6g activated carbons, 0.7g diatomite successively, edible alcohol finished product is made, wherein,
Heat source of the thick column overhead steam of level-one as the thick tower of two level, and the heat source using stripper overhead steam as methanol column, it is whole raw
Produce process energy conservation 20%.
Embodiment 3
The present embodiment is used for the method for the production edible alcohol for illustrating the present invention.
Corn fermentation maturation mash is subjected to rectifying by the thick tower of level-one, the thick tower of two level being set up in parallel, then again successively
Rectifying is carried out by stripper, purifying column, rectifying column and methanol column, obtains edible alcohol, wherein, in distillation process, two level
Enter after thick column overhead steam cooling in stripper and carry out rectifying, then the steam of stripper overhead is passed directly into purifying column tower
Bottom, from purification column overhead into tap water so that the content of ethanol is 20 volume % in tap water, by the 20 volume % ethanol solutions
It is passed through in rectifying column and carries out rectifying, enters methanol column after the cooling of rectifying column tower top steam, in methanol tower top separating methanol, bottom of towe obtains
Edible alcohol, in addition, by each tower side adopt mouth outflow component enter another rectifying column in carry out rectifying, be made industrial alcohol.And
The column bottom temperature for controlling the thick tower of level-one is 110 DEG C, and tower top temperature is 92 DEG C, tower bottom pressure 21.8Psia, and tower top pressure is
17.8Psia；The column bottom temperature of the thick tower of two level is 77 DEG C, and tower top temperature is 67 DEG C, tower bottom pressure 7.2Psia, and tower top pressure is
4.7Psia；The tower middle portion temperature of stripper is 102 DEG C, and tower top temperature is 84 DEG C, and the pressure of bottom of towe is 19Psia, tower top pressure
For 15.6Psia；The tower top temperature of purifying column is 103 DEG C；The column bottom temperature of rectifying column is 155 DEG C, and tower top temperature is 125 DEG C, tower
Bottom pressure is 76.2Psia, tower top pressure 68.7Psia；The column bottom temperature of methanol column is 57.6 DEG C, tower top temperature 6.59
℃.Then by 10kg edible alcohols successively by 5g activated carbons, 0.5g diatomite carry out adsorption bleaching, be made edible alcohol into
Product, wherein, heat source of the thick column overhead steam of level-one as the thick tower of two level, and the heat using stripper overhead steam as methanol column
Source, whole production process energy saving 25%.
Embodiment 4
The present embodiment is used for the method for the production edible alcohol for illustrating the present invention.
According to the method edible alcohol of embodiment 1, the difference is that, relative to the edible alcohol of 10kg, the dosage of activated carbon
For 4g, diatomaceous dosage is 0.85g, and edible alcohol finished product is made.
Comparative example 1
Edible alcohol is produced according to the method for embodiment 1, unlike, the step of omitting stripper rectifying, it is made edible
Alcohol finished product.
Comparative example 2
Edible alcohol is produced according to the method for embodiment 1, unlike, omit the step that activated carbon and kieselguhr adsorption decolourize
Suddenly, edible alcohol finished product is made.
Test case
Sense organ is carried out according to GB10343-2008 to obtained edible alcohol finished product in embodiment 1-4 and comparative example 1-2 to comment
Valency, evaluation result are shown in Table 1.
Using in Agilent gas chromatograph for determination embodiment 1-4 and comparative example 1-2 obtained edible alcohol finished product into
It is grouped into, test result is shown in Table 2.
Table 1
| Embodiment | Judge result |
| Embodiment 1 | Water white transparency；With the intrinsic fragrance of ethanol；It is pure, slightly sweet； |
| Embodiment 2 | Water white transparency；With the intrinsic fragrance of ethanol；It is pure, slightly sweet； |
| Embodiment 3 | Water white transparency；With the intrinsic fragrance of ethanol；It is pure, slightly sweet； |
| Embodiment 4 | Water white transparency；With the intrinsic fragrance of ethanol；It is pure, slightly sweet； |
| Comparative example 1 | Water white transparency；Free from extraneous odour；It is pure, slightly sweet； |
| Comparative example 2 | Water white transparency；Without foreign odor；It is purer； |
Table 2
The edible alcohol finished product that method by the way that embodiment 1-4 can be seen that to the present invention compared with comparative example 1-2 produces
Middle purity of alcohol is high, impurity content is low, and its taste is also preferable, and whole production process is energy saving.
Embodiment 1 can be seen that to work as relative to 1kg edible alcohols, the dosage of activated carbon compared with embodiment 4 and be
0.5g-0.7g, diatomaceous dosage are 0.05-0.07g, enable to production edible alcohol purity higher, taste more preferably.
The thick tower of two level is added in the method for present invention production edible alcohol, and is produced compared to traditional edible alcohol
Technique employs stripper first, so as to remove effectively the organic matters such as alcohols in mash, esters, aldehydes, improves and is made
The purity of alcohol, in addition, the taste of edible alcohol can be improved by increasing activated carbon and kieselguhr adsorption decolorization process.Separately
Outside, since the thick column overhead steam of increased level-one can be as the heat source of the thick tower of two level, and stripper overhead steam can be used as methanol
The heat source of tower, therefore, whole production method energy conservation and environmental protection.
The preferred embodiment of the present invention described in detail above, still, during present invention is not limited to the embodiments described above
Detail, in the range of the technology design of the present invention, a variety of simple variants can be carried out to technical scheme, this
A little simple variants belong to protection scope of the present invention.
It is further to note that each particular technique feature described in above-mentioned embodiment, in not lance
In the case of shield, can be combined by any suitable means, in order to avoid unnecessary repetition, the present invention to it is various can
The combination of energy no longer separately illustrates.
In addition, various embodiments of the present invention can be combined randomly, as long as it is without prejudice to originally
The thought of invention, it should equally be considered as content disclosed in this invention.
Claims (11)
- A kind of 1. method for producing edible alcohol, it is characterised in that this method includes：By corn fermentation maturation mash by arranged side by side The thick tower of the thick tower of level-one of setting, two level carry out rectifying then again successively by stripper, purifying column, rectifying column and methanol column into Row rectifying, obtains edible alcohol, and the edible alcohol is carried out adsorption bleaching by activated carbon, diatomite successively, edible wine is made Smart finished product.
- 2. according to the method described in claim 1, wherein, relative to 1kg edible alcohols, the dosage of activated carbon is 0.5g-0.7g, Diatomaceous dosage is 0.05-0.07g.
- 3. according to the method described in claim 1, wherein, the stripper, which is provided with, can discharge normal propyl alcohol, fusel oil and tail The impurities removal pipeline of level impurity, the quantity of the impurities removal pipeline is 8-10.
- 4. according to the method described in claim 1, wherein, the condition of rectifying includes in the stripper：Tower middle portion temperature is 98- 102 DEG C, tower top temperature is 80-84 DEG C, and the pressure of bottom of towe is 15-19Psia, tower top pressure 15.2-15.6Psia.
- 5. according to the method described in claim 1, wherein, the condition of rectifying includes in the thick tower of level-one：Column bottom temperature is 106-110 DEG C, tower top temperature is 88-92 DEG C, tower bottom pressure 21.4-21.8Psia, tower top pressure 17.2-17.8Psia.
- 6. according to the method described in claim 1, wherein, the condition of rectifying includes in the thick tower of two level：Column bottom temperature is 73- 77 DEG C, tower top temperature is 63-67 DEG C, tower bottom pressure 6.8-7.2Psia, tower top pressure 4.3-4.7Psia.
- 7. according to the method described in claim 1, wherein, the condition of rectifying includes in the purifying column：Tower top temperature is 101- 103℃。
- 8. according to the method described in claim 1, wherein, the condition of rectifying includes in the rectifying column：Column bottom temperature is 150- 155 DEG C, tower top temperature is 121-125 DEG C, tower bottom pressure 74.2-76.2Psia, tower top pressure 66.7-68.7Psia.
- 9. according to the method described in claim 1, wherein, the condition of rectifying includes in the methanol column：Column bottom temperature is 57.4- 57.6 DEG C, tower top temperature is 6.39-6.59 DEG C.
- 10. according to the method described in claim 1, wherein, using the thick column overhead steam of the level-one as the thick tower of the two level Heat source.
- 11. according to the method described in claim 1, wherein, the heat source using the stripper overhead steam as methanol column.
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| CN109704920B (en) * | 2019-02-25 | 2024-01-30 | 天津市新天进科技开发有限公司 | Energy-saving process and device for producing fuel ethanol from low-concentration fermentation liquor |
| CN109876486A (en) * | 2019-04-03 | 2019-06-14 | 广东中科天元新能源科技有限公司 | A kind of eight column differential-pressure distillation device of superfine alcohol and energy-saving processing technique |
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| CN1086849A (en) * | 1993-09-01 | 1994-05-18 | 王大明 | The distillating method of high grade edible spirit |
| CN1880435A (en) * | 2006-04-30 | 2006-12-20 | 广东中科天元再生资源工程有限公司 | Six-column differential-pressure distillation device for extra edible alcohol and process therefor |
| CN101153257A (en) * | 2007-09-27 | 2008-04-02 | 广州保捷机电有限公司 | Five-tower two-grade difference pressure distillation equipment for senior edible ethanol and technique thereof |
| CN102503771A (en) * | 2011-10-12 | 2012-06-20 | 中粮生物化学（安徽）股份有限公司 | Refining system and method of ethanol-containing aqueous solution |
| CN204017520U (en) * | 2014-06-13 | 2014-12-17 | 中粮生化能源（肇东）有限公司 | A kind of alcohol purification equipment |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61158774A (en) * | 1984-12-29 | 1986-07-18 | Tokyo Electric Power Co Inc:The | Device for purifying ethanol |
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2014
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1086849A (en) * | 1993-09-01 | 1994-05-18 | 王大明 | The distillating method of high grade edible spirit |
| CN1880435A (en) * | 2006-04-30 | 2006-12-20 | 广东中科天元再生资源工程有限公司 | Six-column differential-pressure distillation device for extra edible alcohol and process therefor |
| CN101153257A (en) * | 2007-09-27 | 2008-04-02 | 广州保捷机电有限公司 | Five-tower two-grade difference pressure distillation equipment for senior edible ethanol and technique thereof |
| CN102503771A (en) * | 2011-10-12 | 2012-06-20 | 中粮生物化学（安徽）股份有限公司 | Refining system and method of ethanol-containing aqueous solution |
| CN204017520U (en) * | 2014-06-13 | 2014-12-17 | 中粮生化能源（肇东）有限公司 | A kind of alcohol purification equipment |
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