CN104611132A - Acid reducing process of rice oil - Google Patents
Acid reducing process of rice oil Download PDFInfo
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- CN104611132A CN104611132A CN201510057436.9A CN201510057436A CN104611132A CN 104611132 A CN104611132 A CN 104611132A CN 201510057436 A CN201510057436 A CN 201510057436A CN 104611132 A CN104611132 A CN 104611132A
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Classifications
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- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11B—PRODUCING, e.g. BY PRESSING RAW MATERIALS OR BY EXTRACTION FROM WASTE MATERIALS, REFINING OR PRESERVING FATS, FATTY SUBSTANCES, e.g. LANOLIN, FATTY OILS OR WAXES; ESSENTIAL OILS; PERFUMES
- C11B3/00—Refining fats or fatty oils
- C11B3/001—Refining fats or fatty oils by a combination of two or more of the means hereafter
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- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11B—PRODUCING, e.g. BY PRESSING RAW MATERIALS OR BY EXTRACTION FROM WASTE MATERIALS, REFINING OR PRESERVING FATS, FATTY SUBSTANCES, e.g. LANOLIN, FATTY OILS OR WAXES; ESSENTIAL OILS; PERFUMES
- C11B3/00—Refining fats or fatty oils
- C11B3/02—Refining fats or fatty oils by chemical reaction
- C11B3/04—Refining fats or fatty oils by chemical reaction with acids
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- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11B—PRODUCING, e.g. BY PRESSING RAW MATERIALS OR BY EXTRACTION FROM WASTE MATERIALS, REFINING OR PRESERVING FATS, FATTY SUBSTANCES, e.g. LANOLIN, FATTY OILS OR WAXES; ESSENTIAL OILS; PERFUMES
- C11B3/00—Refining fats or fatty oils
- C11B3/02—Refining fats or fatty oils by chemical reaction
- C11B3/06—Refining fats or fatty oils by chemical reaction with bases
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11B—PRODUCING, e.g. BY PRESSING RAW MATERIALS OR BY EXTRACTION FROM WASTE MATERIALS, REFINING OR PRESERVING FATS, FATTY SUBSTANCES, e.g. LANOLIN, FATTY OILS OR WAXES; ESSENTIAL OILS; PERFUMES
- C11B3/00—Refining fats or fatty oils
- C11B3/10—Refining fats or fatty oils by adsorption
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11B—PRODUCING, e.g. BY PRESSING RAW MATERIALS OR BY EXTRACTION FROM WASTE MATERIALS, REFINING OR PRESERVING FATS, FATTY SUBSTANCES, e.g. LANOLIN, FATTY OILS OR WAXES; ESSENTIAL OILS; PERFUMES
- C11B3/00—Refining fats or fatty oils
- C11B3/16—Refining fats or fatty oils by mechanical means
Abstract
The invention discloses an acid reducing process of rice oil. The process comprises the following steps of: with rice bran containing rice germs as raw material, preparing crude oil by a leaching method; adding phosphoric acid into the crude oil to remove non-hydratable phospholipid, adding hot water for hydrating and deguming, and then drying, de-waxing, de-coloring, separating oxygen by a de-aerator, separating acid for the first time in a film evaporator, performing physical secondary acid removing in a combined plate type tower through a heater, adding alkali liquor, carrying out soap removing separation in a centrifugal machine, washing in a water washing centrifugal machine, de-coloring again, removing odor, and finally de-greasing by a winterization filter, so as to obtain low-acid-value rice oil. The acid reducing effect of the acid reducing process is significant, the acid value of the crude oil is reduced from 28+/-1mg/g to 0.2-0.5mg/g; so low-avid-value and high-quality rice oil is possibly prepared from high-acid-value crude oil.
Description
Technical field
The invention belongs to grease deep processing technology field, be specifically related to a kind of novel process that high acid value Rice oil deacidification is produced.
Technical background
Rice oil contains abundant vitamin-E, thiaminogen, tocopherol isoreactivity material, human body is delayed senility, the cerebrovascular, neural system have nourishing function, it is a kind of Rice oil of high-quality, but because rice bran becomes sour seriously, after high temperature leaches, crude oil acid value high (acid value is up to 28 ± 1mg/g), colloid is large, color and luster is dark, is difficult to the Rice oil obtaining higher quality further; The acid value of food oils generally must not higher than 5mg/g, if acid value is too high, can cause human body gastrointestinal upset, diarrhoea damage liver.
Summary of the invention
The object of the present invention is to provide the Rice oil deacidification technique of a kind of efficient, low consumption, remarkable in economical benefits, make the Rice oil of processing low acid value high-quality further become possibility.
The object of the invention is to be achieved by the following technical programs:
A deacidification technique for Rice oil, adopts the rice bran containing rice embryo to be raw material, obtains crude oil by lixiviation process, the acid value of Extractive crudeoil is at 28 ± 1mg/g, it is characterized in that, comprise following operation steps: the crude oil that (1) leaches enters aquation pot through storage tank, adds the phosphoric acid of quality of crude oil 3 ‰, stir 20 minutes, in order to remove non-hydratable phospholipid, be then warming up to 70 DEG C, add 75 ~ 80 DEG C of hot water of quality of crude oil 5%, stir 40 minutes, precipitate and carry out hydration degum in 8 hours; (2) degummed oil is at 120 DEG C, and reaction pressure 4 ~ 9KPa carries out drying, makes the moisture of degummed oil be down to less than 1%, obtains dry oil; (3) dry oil pump enters crystallizer, carries out crystallization 22 hours at 18 ~ 20 DEG C, and growing the grain 8 hours, by plate type pressure filter, obtains pressed oil; (4) pressed oil enters continuous stripping tower, at vacuum pressure 4 ~ 9KPa, at oil temperature 120 DEG C, adds the atlapulgite of pressed oil quality 5% and the activated carbon of pressed oil quality 1%, reacts 20 minutes, obtain bleached oil; (5) bleached oil deviates from oxygen wherein through deaerator, through oily oil heat exchanger and well heater, oil temperature is risen to 250 ~ 260 DEG C, under vacuum pressure 133Pa, enter thin-film evaporator, obtain depickling oil after extracting lipid acid, now the acid value of depickling oil is at 8 ~ 10mg/g; (6) depickling oil enters composition board type tower through well heater, at vacuum pressure 133PA, oil temperature 250 ~ 260 DEG C, carry out physical deacidification, and obtain Rice oil 1 after extracting lipid acid, the acid value of Rice oil 1 is 2 ~ 2.5mg/g, and color is red 3.5 ~ 4.5, and yellow 35, free from extraneous odour; (7) Rice oil 1 is at 60 DEG C, adds alkali lye by 40 kg/ton oil, is warming up to 85 DEG C and goes whizzer to take off soap separation; Then oil temperature rises to 90 DEG C, adds 95 DEG C of hot water of oil mass 15%, enters washing whizzer and washes; After washing, under the vacuum state of pressure 4 ~ 9KPa, carry out drying obtain secondary degumming oil; (8) secondary degumming oil enters bleaching tower, and at pressure 4 ~ 9KPA, oil temperature 120 DEG C, the atlapulgite adding oil quality 2% decolours, and obtains secondary decolourization oil; (9) secondary decolourization oil enters tray column through deaerator, oily oil heat exchanger, well heater successively, under oil temperature 230 ~ 240 DEG C of states, sloughs partial fatty acid and carclazyte peculiar smell, obtains Rice oil 2; (10) Rice oil 2 carries out crystallization 22 hours, and growing the grain, after 8 hours, carries out degreasing at 0 ~ 3 DEG C through Winterization filter and obtains Rice oil 3, and the acid value of Rice oil 3 is 0.2 ~ 0.5mg/g, and color is red 0.6 ~ 1, and yellow 35, clear, free from extraneous odour.Add 2 ~ 2.5g/kg in mass ratio to Rice oil 3, thiaminogen, the sterol of 1 ~ 2g/kg, the vitamin-E of 0.5 ~ 1g/kg, obtains nutritious Rice oil.
Further, the alkali lye described in step (7) is the sodium hydroxide solution of mass concentration 10%.
The present invention has following beneficial effect:
Deacidification successful of the present invention, makes the acid value of crude oil be down to 0.2 ~ 0.5mg/g by 28 ± 1mg/g, and the Rice oil making high acid value crude oil become low acid value high-quality becomes possibility; Change the pattern that traditional high acid value oil refines twice, by thin-film evaporator, board-like combined column, tray column is connected on lipid acid trap, be connected on a level Four vapor jet pump through lipid acid trap again, the quantity of steam of saving per hour 435 kilograms, reduces energy consumption; Change tradition and add alkali twice, lipid acid is become the pattern of a large amount of Chinese honey locust, lipid acid extracts by the present invention, adds benefit, decreases the discharge of waste water, waste residue, technological process environmental protection, and reliable in quality is stablized; By adding a small amount of light alkali, reduce the color of oil product, product is golden yellow, clear. and mouthfeel is good, and whole production process does not have waste gas, waste residue, discharging of waste liquid.
Embodiment
Embodiment 1
The rice bran containing rice embryo is adopted to be raw material, obtain crude oil by lixiviation process, the acid value of Extractive crudeoil, at 28 ± 1mg/g, is characterized in that, comprise following operation steps: the crude oil that (1) leaches enters aquation pot through storage tank, add the phosphoric acid of quality of crude oil 3 ‰, stir 20 minutes, in order to remove non-hydratable phospholipid, then 70 DEG C are warming up to, add 80 DEG C of hot water of quality of crude oil 5%, stir 40 minutes, precipitate and carry out hydration degum in 8 hours; (2) degummed oil is at 120 DEG C, and reaction pressure 6KPa carries out drying, makes the moisture of degummed oil be down to less than 1%, obtains dry oil; (3) dry oil pump enters crystallizer, carries out crystallization 22 hours at 18 ~ 20 DEG C, and growing the grain 8 hours, by plate type pressure filter, obtains pressed oil; (4) pressed oil enters continuous stripping tower, at vacuum pressure 6KPa, at oil temperature 120 DEG C, adds the atlapulgite of pressed oil quality 5% and the activated carbon of pressed oil quality 1%, reacts 20 minutes, obtain bleached oil; (5) bleached oil deviates from oxygen wherein through deaerator, through oily oil heat exchanger and well heater, oil temperature is risen to 250 ~ 260 DEG C, under vacuum pressure 133Pa, enters thin-film evaporator, and obtain depickling oil after extracting lipid acid, now the acid value of depickling oil is at 9mg/g; (6) depickling oil enters composition board type tower through well heater, at vacuum pressure 133PA, oil temperature 250 ~ 260 DEG C, carries out physical deacidification, and obtain Rice oil 1 after extracting lipid acid, the acid value of Rice oil 1 is 2mg/g, and color is red 3.5 ~ 4.5, and yellow 35, free from extraneous odour; (7) Rice oil 1 is at 60 DEG C, adds the sodium hydroxide solution of mass concentration 10% by 40 kg/ton oil, is warming up to 85 DEG C and goes whizzer to take off soap separation; Then oil temperature rises to 90 DEG C, adds 95 DEG C of hot water of oil mass 15%, enters washing whizzer and washes; After washing, under the vacuum state of pressure 6KPa, carry out drying obtain secondary degumming oil; (8) secondary degumming oil enters bleaching tower, and at pressure 6KPA, oil temperature 120 DEG C, the atlapulgite adding oil quality 2% decolours, and obtains secondary decolourization oil; (9) secondary decolourization oil enters tray column through deaerator, oily oil heat exchanger, well heater successively, under oil temperature 230 ~ 240 DEG C of states, sloughs partial fatty acid and carclazyte peculiar smell, obtains Rice oil 2; (10) Rice oil 2 carries out crystallization 22 hours, and growing the grain, after 8 hours, carries out degreasing at 2 DEG C through Winterization filter and obtains Rice oil 3, and the acid value of Rice oil 3 is 0.3mg/g, and color is red 1, and yellow 35, clear, free from extraneous odour.Add 2.2g/kg in mass ratio to Rice oil 3, thiaminogen, the sterol of 1.5g/kg, the vitamin-E of 0.8g/kg, obtains nutritious Rice oil.
Embodiment 2
The rice bran containing rice embryo is adopted to be raw material, obtain crude oil by lixiviation process, the acid value of Extractive crudeoil, at 28 ± 1mg/g, is characterized in that, comprise following operation steps: the crude oil that (1) leaches enters aquation pot through storage tank, add the phosphoric acid of quality of crude oil 3 ‰, stir 20 minutes, in order to remove non-hydratable phospholipid, then 70 DEG C are warming up to, add 78 DEG C of hot water of quality of crude oil 5%, stir 40 minutes, precipitate and carry out hydration degum in 8 hours; (2) degummed oil is at 120 DEG C, and reaction pressure 4KPa carries out drying, makes the moisture of degummed oil be down to less than 1%, obtains dry oil; (3) dry oil pump enters crystallizer, carries out crystallization 22 hours at 18 ~ 20 DEG C, and growing the grain 8 hours, by plate type pressure filter, obtains pressed oil; (4) pressed oil enters continuous stripping tower, at vacuum pressure 4KPa, at oil temperature 120 DEG C, adds the atlapulgite of pressed oil quality 5% and the activated carbon of pressed oil quality 1%, reacts 20 minutes, obtain bleached oil; (5) bleached oil deviates from oxygen wherein through deaerator, through oily oil heat exchanger and well heater, oil temperature is risen to 250 ~ 260 DEG C, under vacuum pressure 133Pa, enter thin-film evaporator, obtain depickling oil after extracting lipid acid, now the acid value of depickling oil is at 10mg/g; (6) depickling oil enters composition board type tower through well heater, at vacuum pressure 133PA, oil temperature 250 ~ 260 DEG C, carries out physical deacidification, and obtain Rice oil 1 after extracting lipid acid, the acid value of Rice oil 1 is 2mg/g, and color is red 3.5 ~ 4.5, and yellow 35, free from extraneous odour; (7) Rice oil 1 is at 60 DEG C, adds the sodium hydroxide solution of mass concentration 10% by 40 kg/ton oil, is warming up to 85 DEG C and goes whizzer to take off soap separation; Then oil temperature rises to 90 DEG C, adds 95 DEG C of hot water of oil mass 15%, enters washing whizzer and washes; After washing, under the vacuum state of pressure 4KPa, carry out drying obtain secondary degumming oil; (8) secondary degumming oil enters bleaching tower, and at pressure 4KPA, oil temperature 120 DEG C, the atlapulgite adding oil quality 2% decolours, and obtains secondary decolourization oil; (9) secondary decolourization oil enters tray column through deaerator, oily oil heat exchanger, well heater successively, under oil temperature 230 ~ 240 DEG C of states, sloughs partial fatty acid and carclazyte peculiar smell, obtains Rice oil 2; (10) Rice oil 2 carries out crystallization 22 hours, and growing the grain, after 8 hours, carries out degreasing at 3 DEG C through Winterization filter and obtains Rice oil 3, and the acid value of Rice oil 3 is 0.5mg/g, and color is red 0.8, and yellow 35, clear, free from extraneous odour.Add 2g/kg in mass ratio to Rice oil 3, thiaminogen, the sterol of 1g/kg, the vitamin-E of 0.5g/kg, obtains nutritious Rice oil.
Embodiment 3
The rice bran containing rice embryo is adopted to be raw material, obtain crude oil by lixiviation process, the acid value of Extractive crudeoil, at 28 ± 1mg/g, is characterized in that, comprise following operation steps: the crude oil that (1) leaches enters aquation pot through storage tank, add the phosphoric acid of quality of crude oil 3 ‰, stir 20 minutes, in order to remove non-hydratable phospholipid, then 70 DEG C are warming up to, add 75 DEG C of hot water of quality of crude oil 5%, stir 40 minutes, precipitate and carry out hydration degum in 8 hours; (2) degummed oil is at 120 DEG C, and reaction pressure 9KPa carries out drying, makes the moisture of degummed oil be down to less than 1%, obtains dry oil; (3) dry oil pump enters crystallizer, carries out crystallization 22 hours at 18 ~ 20 DEG C, and growing the grain 8 hours, by plate type pressure filter, obtains pressed oil; (4) pressed oil enters continuous stripping tower, at vacuum pressure 9KPa, at oil temperature 120 DEG C, adds the atlapulgite of pressed oil quality 5% and the activated carbon of pressed oil quality 1%, reacts 20 minutes, obtain bleached oil; (5) bleached oil deviates from oxygen wherein through deaerator, through oily oil heat exchanger and well heater, oil temperature is risen to 250 ~ 260 DEG C, under vacuum pressure 133Pa, enters thin-film evaporator, and obtain depickling oil after extracting lipid acid, now the acid value of depickling oil is at 8mg/g; (6) depickling oil enters composition board type tower through well heater, at vacuum pressure 133PA, oil temperature 250 ~ 260 DEG C, carries out physical deacidification, and obtain Rice oil 1 after extracting lipid acid, the acid value of Rice oil 1 is 2mg/g, and color is red 3.5 ~ 4.5, and yellow 35, free from extraneous odour; (7) Rice oil 1 is at 60 DEG C, adds the sodium hydroxide solution of mass concentration 10% by 40 kg/ton oil, is warming up to 85 DEG C and goes whizzer to take off soap separation; Then oil temperature rises to 90 DEG C, adds 95 DEG C of hot water of oil mass 15%, enters washing whizzer and washes; After washing, under the vacuum state of pressure 9KPa, carry out drying obtain secondary degumming oil; (8) secondary degumming oil enters bleaching tower, and at pressure 9KPA, oil temperature 120 DEG C, the atlapulgite adding oil quality 2% decolours, and obtains secondary decolourization oil; (9) secondary decolourization oil enters tray column through deaerator, oily oil heat exchanger, well heater successively, under oil temperature 230 ~ 240 DEG C of states, sloughs partial fatty acid and carclazyte peculiar smell, obtains Rice oil 2; (10) Rice oil 2 carries out crystallization 22 hours, and growing the grain, after 8 hours, carries out degreasing at 0 DEG C through Winterization filter and obtains Rice oil 3, and the acid value of Rice oil 3 is 0.2mg/g, and color is red 0.6, and yellow 35, clear, free from extraneous odour.Add 2.5g/kg in mass ratio to Rice oil 3, thiaminogen, the sterol of 2g/kg, the vitamin-E of 1g/kg, obtains nutritious Rice oil.
The above is only preferred embodiment of the present invention, not does any pro forma restriction to the present invention; Any those of ordinary skill in the art; do not departing from the content of technical solution of the present invention; according to technical spirit of the present invention to any simple modification made for any of the above embodiments, equivalent replacement, equivalence change and modification, all still belong in the scope of technical solution of the present invention protection.
Claims (2)
1. a deacidification technique for Rice oil, adopts the rice bran containing rice embryo to be raw material, obtains crude oil by lixiviation process, the acid value of Extractive crudeoil is at 28 ± 1mg/g, it is characterized in that, comprise following operation steps: the crude oil that (1) leaches enters aquation pot through storage tank, adds the phosphoric acid of quality of crude oil 3 ‰, stir 20 minutes, in order to remove non-hydratable phospholipid, be then warming up to 70 DEG C, add 75 ~ 80 DEG C of hot water of quality of crude oil 5%, stir 40 minutes, precipitate and carry out hydration degum in 8 hours; (2) degummed oil is at 120 DEG C, and reaction pressure 4 ~ 9KPa carries out drying, makes the moisture of degummed oil be down to less than 1%, obtains dry oil; (3) dry oil pump enters crystallizer, carries out crystallization 22 hours at 18 ~ 20 DEG C, and growing the grain 8 hours, by plate type pressure filter, obtains pressed oil; (4) pressed oil enters continuous stripping tower, at vacuum pressure 4 ~ 9KPa, at oil temperature 120 DEG C, adds the atlapulgite of pressed oil quality 5% and the activated carbon of pressed oil quality 1%, reacts 20 minutes, obtain bleached oil; (5) bleached oil deviates from oxygen wherein through deaerator, through oily oil heat exchanger and well heater, oil temperature is risen to 250 ~ 260 DEG C, under vacuum pressure 133Pa, enter thin-film evaporator, obtain depickling oil after extracting lipid acid, now the acid value of depickling oil is 8 ~ 10mg/g; (6) depickling oil enters composition board type tower through well heater, at vacuum pressure 133PA, oil temperature 250 ~ 260 DEG C, carries out physical deacidification, and obtain Rice oil 1 after extracting lipid acid, the acid value of Rice oil 1 is at 2 ~ 2.5mg/g; (7) Rice oil 1 is at 60 DEG C, adds alkali lye by 40 kg/ton oil, is warming up to 85 DEG C and goes whizzer to take off soap separation; Then oil temperature rises to 90 DEG C, adds 95 DEG C of hot water of oil mass 15%, enters washing whizzer and washes; After washing, under the vacuum state of pressure 4 ~ 9KPa, carry out drying obtain secondary degumming oil; (8) secondary degumming oil enters bleaching tower, and at pressure 4 ~ 9KPA, oil temperature 120 DEG C, the atlapulgite adding oil quality 2% decolours, and obtains secondary decolourization oil; (9) secondary decolourization oil enters tray column through deaerator, oily oil heat exchanger, well heater successively, under oil temperature 230 ~ 240 DEG C of states, sloughs partial fatty acid and carclazyte peculiar smell, obtains Rice oil 2; (10) Rice oil 2 carries out crystallization 22 hours, and growing the grain, after 8 hours, carries out degreasing at 0 ~ 3 DEG C through Winterization filter and obtains Rice oil 3, and the acid value of Rice oil 3 is 0.2 ~ 0.5mg/g.
2. the deacidification technique of a kind of Rice oil according to claim 1, is characterized in that, the alkali lye described in step (7) is the sodium hydroxide solution of mass concentration 10%.
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| CN104928023A (en) * | 2015-07-15 | 2015-09-23 | 山东三星玉米产业科技有限公司 | Corn oil soap-free refining process |
| CN105062671A (en) * | 2015-08-31 | 2015-11-18 | 江西省硒海油脂有限公司 | Technology for refining rice bran oil from rice bran |
| CN105062667A (en) * | 2015-07-17 | 2015-11-18 | 广州市正德生物科技有限公司 | Edible vegetable oil deacidification and deodorization technology |
| CN105176676A (en) * | 2015-07-17 | 2015-12-23 | 广州市正德生物科技有限公司 | Edible plant oil non-soap refining method |
| CN107474942A (en) * | 2017-09-30 | 2017-12-15 | 衢州刘家香食品有限公司 | A kind of processing method of high oryzanol rice bran oil |
| CN111394172A (en) * | 2019-01-03 | 2020-07-10 | 江苏康之源粮油有限公司 | Physical distillation-chemical alkali refining combined deacidification process for rice oil |
| CN113122386A (en) * | 2019-12-30 | 2021-07-16 | 丰益(上海)生物技术研发中心有限公司 | Rice oil and preparation method thereof |
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| CN104928023A (en) * | 2015-07-15 | 2015-09-23 | 山东三星玉米产业科技有限公司 | Corn oil soap-free refining process |
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| CN111394172A (en) * | 2019-01-03 | 2020-07-10 | 江苏康之源粮油有限公司 | Physical distillation-chemical alkali refining combined deacidification process for rice oil |
| CN113122386A (en) * | 2019-12-30 | 2021-07-16 | 丰益(上海)生物技术研发中心有限公司 | Rice oil and preparation method thereof |
| CN113122386B (en) * | 2019-12-30 | 2023-11-24 | 丰益(上海)生物技术研发中心有限公司 | Rice oil and preparation method thereof |
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