CN104232299B - Method for recovering and regenerating waste vegetable oil in fermentation pharmacy production - Google Patents
Method for recovering and regenerating waste vegetable oil in fermentation pharmacy production Download PDFInfo
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- CN104232299B CN104232299B CN201410404584.9A CN201410404584A CN104232299B CN 104232299 B CN104232299 B CN 104232299B CN 201410404584 A CN201410404584 A CN 201410404584A CN 104232299 B CN104232299 B CN 104232299B
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Abstract
The invention discloses a method for recovering and regenerating waste vegetable oil in fermentation pharmacy production, which comprises the following steps: mixing a proper amount of alkali liquor with waste bean oil, heating, stirring, discarding the water layer, washing with a right amount of water, discarding the water layer, washing with acid and water and adding an adsorbent or directly adding an adsorbent, sufficiently stirring, and carrying out centrifugal separation to separate the impurity-adsorbed adsorbent, thereby obtaining the recoverable vegetable oil. The technique has the advantages of mild reaction conditions, simple and controllable technical process, low oil loss, low production cost, less pollutant discharge in the production process and simple after-treatment procedure, is suitable for large-scale industrial production and has favorable economic benefit. The regenerated vegetable oil is light yellow or yellow, and is clear and transparent; and the acid value, peroxide value and other indexes conform to the fermentation oil.
Description
Technical field
The present invention relates to offal treatment field after fermentation pharmacy, discarded plant in particularly a kind of fermentation pharmacy production process
The reclaiming method of thing oil.
Background technology
Soybean oil or corn oil are generally in order to do one of raw material of culture medium in fermentation pharmacy production technology.With soybean oil
As a example, it as culture medium, contains substantial amounts of microorganism, egg in the soybean oil after the completion of fermentation extraction in fermentation manufacturing technique
White matter, carbohydrate, phosphatide, tunning etc. of residual, due to by light, heat, in the air oxygen, water, the effect of bacterial classification and enzyme etc.,
There are various complicated changes, such as amount of grease is decomposed into the multi-products such as glycerine and free aliphatic acid, and free fatty is again
It is hydrolyzed further, aoxidizes generation peroxide and hydroperoxides, become sour serious, physicochemical property shows as the color of soya-bean oil
Deepen, with penetrating odor, acid number rises etc..And peroxide therein is very unstable, can continue to resolve into aldehyde and ketone
Compound and other oxides, cause the quality of soya-bean oil to degenerate further, are such as recycled not in time, ultimately result in soya-bean oil
Lose use value.So, if discarded soya-bean oil is carried out reclaiming process, can not only effectively save production cost, and
The pollution to environment can be greatly reduced.
Content of the invention
It is an object of the invention to provide a kind of fermentation pharmacy produce in waste vegetable oil reclaiming method, the method has
There is reaction condition gentle, technical process is simple and easy to control, oil loss is few, low production cost, and production process disposal of pollutants is few, post processing
Operation is simple, and suitable large-scale industrial production solves the regeneration of waste vegetable oil, has good economic benefit.
The present invention is achieved through the following technical solutions: the reclaiming side of waste vegetable oil in a kind of fermentation pharmacy production
Method is it is characterised in that comprise the following steps: (1) takes vegetable oil and alkali lye by weight, is placed in reactor, mixes, institute
State vegetable oil for the discarded soya-bean oil in fermentation pharmacy production or corn oil；(2) above-mentioned reactor is placed in 80～90 DEG C of water-baths
After heating stirring reacts 10～20min, stop heating, stratification, discard lower aqueous layer；(3) add cold water washing secondary with
On, each water consumption is plant weight of oil 10%～20%, and stratification discards lower aqueous layer；(4) adsorbent, stirring are added
20～30min；(5), after mixture is centrifuged removing solid particle, the regenerable soybean obtaining final product clear odorless is oily or beautiful
Rice bran oil.
The alkali of described step (1) is selected from one of NaOH, potassium hydroxide, lithium hydroxide, sodium acid carbonate, sodium carbonate
Or two or more mixing, the concentration of alkali lye is 4wt%～8wt%.
In described step (1), the weight of alkali lye and vegetable oil is than for 0.1～0.5:100.
The adsorbent of described step (4) is selected from that silica gel, kaolin, white carbon, black wood charcoal be black, diatomite or atlapulgite, Gu
Body graininess or porous prilled, fineness is between 100 mesh～300 mesh.
The described adsorbent of step (4) and the weight of vegetable oil are than for 2～8:1000.
Pickling water-washing step also can be provided between described step (3) and step (4): add organic acid, stirring reaction 10～
20min, standing, discard lower aqueous layer；More than addition water washing is secondary, each water consumption is the 8%～15% of plant weight of oil,
Stratification, discards lower aqueous layer.
Described addition organic acid, is placed in heating stirring reaction in 80～90 DEG C of water-baths.
The organic acid of described step (4) is selected from acetic acid, malonic acid, succinic acid, citric acid or maleic acid.
The described organic acid of step (4) and the weight of vegetable oil are than for 0.5～3:1000.
The proterties of step (5) gained regenerable soybean oil is faint yellow or yellow clarified solution body, acid number ＜ 0.7mg koh/g,
Peroxide value ＜ 8meg/kg, percent of decolourization more than 98.60%.
The present invention is first to be washed with alkali cleaning, uses adsorbent again or be directly situated between with adsorbent work absorption after can be selected for pickling washing
Matter adsorbs foreign pigment and the material that becomes sour in soya-bean oil, then carries out the handling process side that centrifugal filtration removes the impurity in soya-bean oil
Method, its advantage is:
(1) the discarded soya-bean oil processing through above-mentioned steps or corn oil, gained oil quality is high, its acid number, peroxidating
The indexs such as value, color and luster are not less than raw material, and indices all meet the raw material standard producing as pharmacy fermentation, completely achievable
Recycling；
(2) this technological reaction mild condition, course of reaction is simply controlled, and energy consumption is low；
(3) in course of reaction, environmental pollution is few, substantially increases the economic benefit of pharmacy corporation.
Specific embodiment
The present invention is a kind of reclaiming method of waste vegetable oil during fermentation pharmacy produces, and it comprises the following steps:
(1) take vegetable oil and alkali lye by weight, be placed in reactor, mix, described vegetable oil is fermenting and producing
Discarded soya-bean oil or corn oil.Preferably, the weight of alkali and vegetable oil is than for 0.1～0.5:100.Alkali preferably is selected from NaOH, hydrogen
One of potassium oxide, lithium hydroxide, sodium acid carbonate, sodium carbonate or two or more mixing.The concentration of alkali lye preferably 4wt%～
8wt%.
(2) above-mentioned reactor is placed in heating stirring in 80～90 DEG C of water-baths to react after 10～20min, stops heating, quiet
Put layering, discard lower aqueous layer.
(3) cold water is added to wash more than secondary, each water consumption is plant weight of oil 10%～20%, stratification is abandoned
Sub-cloud water layer.
(4) add adsorbent, stir 20～30min.Preferably, the weight of adsorbent and vegetable oil is than for 2～8:1000.
Adsorbent preferably is selected from that silica gel, kaolin, white carbon, black wood charcoal be black, diatomite or atlapulgite, is in preferably solid granular or porous
Graininess, fineness is between 100 mesh～300 mesh.
(5) regenerable soybean oil or the corn of clear odorless after mixture is centrifuged removing solid particle, are obtained final product
Oil, indices all meet the raw material standard producing as pharmacy fermentation.
In order that the indices of aftergrowth oil are lifted further, it is furthermore preferred that between step (3) and step (4)
Set up pickling water-washing step.Pickling: add organic acid, stirring reaction 10～20min, standing, discard lower aqueous layer.Preferably,
The weight of organic acid and vegetable oil is than for 0.5～3:1000.Organic acid preferably is selected from acetic acid, malonic acid, succinic acid, citric acid or horse
Come sour.When adding organic acid stirring reaction, reactor is placed in heating in 80～90 DEG C of water-baths, better.Washing: add water
More than washing is secondary, each water consumption is the 8%～15% of plant weight of oil, and stratification discards lower aqueous layer.
Further illustrate the present invention by the following examples:
Embodiment 1
The sodium hydroxide solution of 100 grams of discarded soybean oils and 10ml5wt% is added to stirring and heater
In reactor, start to stir, be warming up to 80 DEG C, stirring reaction 20min；Standing, layering, remove lower aqueous layer；Add cold water
10ml stirs 10min, stratification, discards lower aqueous layer, is repeated twice；Add succinic acid 0.5g to mix, be warming up to 80
DEG C, stirring reaction 20min；Standing, layering, remove lower aqueous layer；Add cold water 10ml stirring 10min, stratification, discard down
Layer water layer, is repeated twice；Add carbon black 0.5g, stir 10mim, centrifugal filtration, obtain final product regeneration soya-bean oil, conversion ratio is 93.2%.
After this method is processed, regenerable soybean oil has the feature that proterties is faint yellow or yellow clarified solution body；Acid number ＜ 0.7mg
Koh/g, meets edible three-level soybean oil standard；Peroxide value ＜ 8meg/kg, meets edible three-level soybean oil standard；Percent of decolourization
Up to more than 98.60%.Indices all meet the raw material standard producing as pharmacy fermentation.
Embodiment 2
Discard in soya-bean oil to 150g and add 15ml4wt% potassium hydroxide solution, be uniformly mixed, warming-in-water to 90
DEG C, stirring reaction 30min；Stratification, except sub-cloud；Add cold water 20ml stirring 10min, stratification discards lower floor's water
Layer, is repeated once；Citric acid 0.75g is added to mix, stirring reaction 20min, stratification, discard lower aqueous layer；Add
Cold water 20ml stirs 10min, and stratification discards lower aqueous layer, is repeated once, and adds atlapulgite 0.8g, stirs 10min, from
The heart filters and obtains final product regeneration soya-bean oil, and conversion ratio is 95.5%, and indices all meet the raw material standard producing as pharmacy fermentation.
Embodiment 3
The sodium hydroxide solution of 15ml6wt% is added to 200g discard in soya-bean oil, is uniformly mixed, warming-in-water is extremely
85 DEG C, after stirring reaction 20min, stratification removes sub-cloud；Add cold water 20ml stirring 15min, stratification discards lower floor,
In triplicate, add white carbon 1g, stir 10min, centrifugal filtration obtains final product regeneration soya-bean oil, conversion ratio is 93.7%, indices
All meet the raw material standard producing as pharmacy fermentation.
Embodiment 4
Discard, to 100g, the sodium hydroxide solution adding 10ml4% in soya-bean oil, be uniformly mixed, warming-in-water to 80
DEG C, after stirring reaction 10min, stratification removes lower aqueous layer；Add cold water 10ml stirring 10min, stratification discards lower floor
Water layer, in triplicate；Add kaolin 0.5g, stirring reaction 10min, centrifugal filtration obtains final product regeneration soya-bean oil, and conversion ratio is
94.8%, indices all meet the raw material standard producing as pharmacy fermentation.
Embodiment 5
Discard, to 100g, the sodium hydroxide solution adding 10ml4% in soya-bean oil, be uniformly mixed, warming-in-water to 80
DEG C, after stirring reaction 10min, stratification removes lower aqueous layer；Add cold water 10ml stirring 10min, stratification discards lower floor
Water layer, in triplicate；Add diatomite 0.5g, stirring reaction 10min, centrifugal filtration obtains final product regeneration soya-bean oil, and conversion ratio is
97.0%, indices all meet the raw material standard producing as pharmacy fermentation.
The present invention adopt the material that becomes sour (alcohol, acid, aldehyde) that alkali cleaning, washing, adsorption bleaching deodorization remove in discarded soya-bean oil with
And pigment, and this process conditions is optimized, it is that the regeneration of the discarded soya-bean oil of high acid value provides laboratory foundation, and
It is applied in produce reality, produce during solving the problems, such as fermentation pharmacy and discard soya-bean oil in a large number.
Claims (10)
1. during a kind of fermentation pharmacy produces, the reclaiming method of waste vegetable oil is it is characterised in that comprise the following steps:
(1) take vegetable oil and alkali lye by weight, be placed in reactor, mix, described vegetable oil is discarded for fermenting and producing
Soya-bean oil or corn oil；
(2) above-mentioned reactor is placed in heating stirring in 80～90 DEG C of water-baths to react after 10～20min, stops heating, standing point
Layer, discards lower aqueous layer；
(3) cold water is added to wash more than secondary, each water consumption is plant weight of oil 10%～20%, stratification discards down
Layer water layer；
(4) add adsorbent, stir 20～30min；
(5) regenerable soybean oil or the corn oil of clear odorless after mixture is centrifuged removing solid particle, are obtained final product；
Wherein, it is provided with pickling water-washing step between described step (3) and step (4): add organic acid, stirring reaction 10～
20min, standing, discard lower aqueous layer；More than addition water washing is secondary, each water consumption is the 8%～15% of plant weight of oil,
Stratification, discards lower aqueous layer.
2. during fermentation pharmacy according to claim 1 produces waste vegetable oil reclaiming method it is characterised in that: institute
The alkali stating step (1) is selected from one of NaOH, potassium hydroxide, lithium hydroxide, sodium acid carbonate, sodium carbonate or two or more
Mixing, the concentration of alkali lye is 4wt%～8wt%.
3. the reclaiming method of waste vegetable oil during fermentation pharmacy according to claim 1 and 2 produces, its feature exists
In: in described step (1), the weight of alkali lye and vegetable oil is than for 0.1～0.5:100.
4. during fermentation pharmacy according to claim 1 produces waste vegetable oil reclaiming method it is characterised in that: institute
The adsorbent stating step (4) is selected from that silica gel, kaolin, white carbon, black wood charcoal be black, diatomite or atlapulgite, solid granular, carefully
Degree is between 100 mesh～300 mesh.
5. during fermentation pharmacy according to claim 4 produces waste vegetable oil reclaiming method it is characterised in that: institute
It is porous prilled for stating solid granular.
6. the reclaiming method of waste vegetable oil during the fermentation pharmacy according to claim 1 or 4 produces, its feature exists
In: the described adsorbent of step (4) and the weight of vegetable oil than for 2～8:1000.
7. during fermentation pharmacy according to claim 1 produces waste vegetable oil reclaiming method it is characterised in that: institute
State addition organic acid, be placed in heating stirring reaction in 80～90 DEG C of water-baths.
8. the reclaiming method of waste vegetable oil during the fermentation pharmacy according to claim 1 or 7 produces, its feature exists
In: described organic acid is selected from acetic acid, malonic acid, succinic acid, citric acid or maleic acid.
9. the reclaiming method of waste vegetable oil during the fermentation pharmacy according to claim 1 or 7 produces, its feature exists
In: described organic acid and vegetable oil weight than for 0.5～3:1000.
10. during fermentation pharmacy according to claim 1 produces waste vegetable oil reclaiming method it is characterised in that:
The proterties of step (5) gained regenerable soybean oil is faint yellow or yellow clarified solution body, acid number ＜ 0.7mg koh/g, peroxide value
＜ 8meg/kg, percent of decolourization more than 98.60%.
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| EP0560121A3 (en) * | 1992-03-09 | 1994-07-27 | Vandemoortele Int Nv | Method for refining glyceride oil |
| CN103881811A (en) * | 2012-12-24 | 2014-06-25 | 青岛帅王油脂化学有限公司 | Method for removing extra aliphatic acid from oil materials |
| CN103965940A (en) * | 2014-04-28 | 2014-08-06 | 王军 | Scientific utilization of waste grease |
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