WO2010004986A1 - 天然油の精製方法 - Google Patents
天然油の精製方法 Download PDFInfo
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- WO2010004986A1 WO2010004986A1 PCT/JP2009/062358 JP2009062358W WO2010004986A1 WO 2010004986 A1 WO2010004986 A1 WO 2010004986A1 JP 2009062358 W JP2009062358 W JP 2009062358W WO 2010004986 A1 WO2010004986 A1 WO 2010004986A1
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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
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- the present invention relates to a method for efficiently refining natural oil, especially vegetable oil such as camellia oil.
- Heat purification generally includes steps such as degumming, deoxidation, decolorization, and deodorization treatment, and phospholipids, free fatty acids, pigments, and odor components are removed through these steps.
- steps such as degumming, deoxidation, decolorization, and deodorization treatment, and phospholipids, free fatty acids, pigments, and odor components are removed through these steps.
- the fatty acid composition is transformed, and a trans isomer that does not exist in nature is generated.
- studies from around the world have pointed out that the intake of trans fatty acids has an adverse effect on health.
- Europe and other countries in 2005 the United States has also stipulated the existence of trans fatty acids in edible oils. It has come into effect.
- Patent Document 1 a method for purifying vegetable oil without generating trans-type fatty acids.
- methods for refining oil without heating at high temperature for example, a method for refining only with activated carbon
- many improvements are still needed to be able to use it on a commercial basis because of the above factors.
- an object of the present invention is to provide an oil refining method that does not contain a trans-type fatty acid and can efficiently obtain a high level of refining and deodorizing effects.
- the present inventors have found that the above problem can be solved by refining oil using a granular photocatalyst introduced with oxygen and / or hydrogen under a constant temperature condition without excessive heating. It came to complete. That is, the present invention is provided with a layer of granular photocatalyst, and a reaction tank in which raw material natural oil to be treated and oxygen and / or hydrogen are allowed to pass between the granular photocatalysts of the layer, After introducing the raw natural oil to be treated, oxygen and / or hydrogen are introduced into the granular photocatalyst layer, while the raw natural oil is circulated and brought into contact with the granular photocatalyst, and the temperature in the reaction tank is increased.
- a method for refining natural oil characterized by refining raw natural oil at 40 to 110 ° C.
- the present invention also provides an oil refined by the above method.
- highly refined and deodorized oil can be obtained in high yield without causing the production of trans fatty acids.
- a granular photocatalyst layer is provided, and a raw natural oil to be treated and oxygen and / or hydrogen are allowed to pass between the granular photocatalysts of the layer.
- a tank is filled with raw natural oil to be processed.
- the reaction tank used in the present invention means a tank in which raw material natural oil and a granular photocatalyst are put inside and a catalytic reaction is carried out by bringing both into contact with each other.
- the dimensions and the like can be easily determined by those skilled in the art.
- stainless steel can be used as the material in consideration of the deterioration of the oil and the heating temperature.
- the raw natural oil that can be used in the present invention is not particularly limited, and any natural oil can be used, but vegetable oil is preferred.
- vegetable oils include cocoon oil, rapeseed oil, safflower oil, corn oil, and soybean oil. Among these, cocoon oil such as oil obtained from Camellia oleifera and Camellia japonica is particularly preferable.
- crude oil oil obtained by squeezing seeds
- oil partially purified beforehand with activated carbon or the like may be used.
- the granular photocatalyst is a solid obtained by processing the photocatalyst to a certain size for the purpose of efficiently contacting the oil and / or easily separating the catalyst and the oil after the catalytic reaction. It means what has become.
- a person skilled in the art can determine the optimum shape and size of the granular photocatalyst of the present invention, but a spherical one having a diameter of 3 to 10 mm, more specifically 5 to 8 mm, for example, 5 mm is preferable.
- a PIP titanium grid manufactured by Nikkiso Co., Ltd. can be used.
- the granular photocatalyst is arranged in a layer in the reaction tank so that raw material natural oil to be processed and oxygen and / or hydrogen can pass between the granular photocatalysts.
- the oil can be efficiently purified by circulating the oil so that the oil repeatedly passes through the granular photocatalyst in the reaction tank. Further, as will be described later, oxygen and / or hydrogen can be efficiently introduced into the granular photocatalyst.
- a preferable amount of the granular photocatalyst is 0.5 to 5 kg per 1 kg of oil, preferably 1 to 3 kg. However, since it is possible to repeatedly contact the granular photocatalyst with the oil by circulating the oil, other appropriate amounts may be used. Those skilled in the art can appropriately set in relation to the above operating conditions.
- the raw natural oil is circulated and brought into contact with the granular photocatalyst, and the temperature in the reaction tank is set to 40 to 110.
- the raw material natural oil is refined by keeping at °C.
- oxygen and / or hydrogen can be introduced, for example, by introducing air.
- the ratio of each can be arbitrarily set, but the molar ratio is 1:10 to 10: 1, preferably 1: 2 to 2: 1, for example, about It can be 1: 1.
- the manner in which oxygen and / or hydrogen is supplied to the granular photocatalyst is no particular limitation on the manner in which oxygen and / or hydrogen is supplied to the granular photocatalyst.
- oxygen and / or hydrogen is introduced into the granular photocatalyst by connecting a gas introduction tube to the granular photocatalyst from the outside of the tank.
- a gas introduction tube to the granular photocatalyst from the outside of the tank.
- oxygen and / or hydrogen may be sent by a pump, or oxygen and / or hydrogen is taken in through a pipe using a suction pressure by reducing the pressure inside the reaction tank by a vacuum pump ( That is, it is good also as a mode to evacuate.
- a filter for generating bubbles is installed at the bottom of the layer of the granular photocatalyst, and a gas introduction pipe for supplying oxygen and / or hydrogen from the outside of the tank is connected to the filter.
- oxygen and / or hydrogen obtained by electrolysis of water may be introduced into the granular photocatalyst layer.
- the apparatus used for water electrolysis is not particularly limited.
- Aegis X manufactured by Sue Engineering Co., Ltd. can be used.
- these gases are mixed in a desired ratio through a pipe, and then formed into a granular photocatalyst layer. It is good also as an aspect introduced, and you may introduce
- the raw natural oil is circulated and brought into contact with the granular photocatalyst.
- the oil can be efficiently purified and deodorized.
- a circulation pump connected to the outside of the reaction tank through a pipe.
- the amount of circulation can be set as appropriate according to the amount of oil or catalyst, and can be 1 to 5 liters per minute, for example 1.5 liters per minute.
- the amount of circulating oil can be increased as appropriate. For example, 0.5 to 2 liters per second, for example 1 per second. It can be about liters.
- the temperature in the reaction tank is kept at 40 to 110 ° C., preferably 80 to 110 ° C., more preferably 85 to 100 ° C., particularly preferably about 90 ° C.
- the reaction can be carried out efficiently in a short time.
- the reaction is carried out in a large volume, it is preferable to carry out the reaction at 40 to 90 ° C. over time. Therefore, in the present invention, the reaction is particularly preferably carried out at 75 to 90 ° C.
- Photocatalysts such as titanium oxide are known as substances that show catalytic action when irradiated with light, but it is also possible to obtain the same catalytic action by applying heat.
- this invention utilizes the effect that a catalyst capability is acquired even if it does not irradiate light to a photocatalyst by setting it as said temperature conditions, you may irradiate light to a photocatalyst if needed.
- the type of light (combination of wavelengths) and intensity can be appropriately determined by those skilled in the art according to the type and amount of the catalyst, and examples include ultraviolet rays of various wavelengths, visible light, and combinations thereof. Can obtain good purification ability by using ultraviolet rays having a wavelength of 315 to 400 nm.
- the time for which the oil is brought into contact with the granular photocatalyst layer varies depending on the operating conditions and the like, so that those skilled in the art can determine the optimal time by ordinary operation, but preferably 4 to 16 hours, preferably 5 ⁇ 8 hours.
- production of a burning odor by heating oil more than necessary can be prevented.
- the modification of oil and the generation of burnt odor are unlikely to occur, and the modification of oil and the generation of burnt odor that occurred after 6 hours under counter pressure have passed over 16 hours. Was also not recognized.
- raw material natural oils such as vegetable oils can be highly purified and deodorized without by-production of trans fatty acids.
- control variables such as the amount of oxygen supplied to the granular photocatalyst, the amount of hydrogen supplied, the oil circulation time, the oil temperature, etc. It is possible to easily determine the operating conditions.
- the degree of oil purification can be determined using, for example, the acid value of oil or the smell of oil.
- the acid value is one of numerical values that objectively represents the degree of refinement of vegetable oil, and means the number of mg of potassium hydroxide required to neutralize 1 g of a sample. For example, after adding 25 ml of diethyl ether and 25 ml of ethanol to 5 g of vegetable oil, titrating with 0.1 mol / l potassium hydroxide aqueous solution using phenolphthalein as an indicator, from the amount of potassium hydroxide aqueous solution required for neutralization Can be calculated.
- a commercially available measuring instrument can be used for measuring the odor, and for example, an odor measuring instrument WB-121F manufactured by Otoka Kagaku can be used.
- an odor measuring instrument WB-121F manufactured by Otoka Kagaku can be used.
- WB-121F manufactured by Otoka Kagaku
- oils having an odor point of about 35 are commercially available as conventional oils manufactured through heat purification exceeding 200 ° C. (that is, containing a lot of harmful trans fatty acids). Even if the treatment at a high temperature as described above is not performed, a deodorizing effect comparable to the conventional heat purification can be obtained.
- the redox power of the photocatalyst was measured most efficiently when irradiated with ultraviolet light with a wavelength of 315 to 400 nm, but it was replaced with light energy. Then, when heat energy was applied, it was found that the decomposition and reduction ability further increased. Therefore, when the natural oil temperature in the reaction tank is maintained at 90 ° C to 110 ° C and the raw natural oil is circulated and brought into contact with the granular photocatalyst with the reaction tank upper lid open, The same effect as that obtained by reacting for 24 to 48 hours could be obtained in 6 to 8 hours.
- Example 1 Reaction tank (stainless steel, capacity 20 liters) 2.3 kg of crude oil of coconut oil obtained by squeezing the seeds of cocoon and 2.3 kg of titanium oxide (PIP titanium grid (spherical with a diameter of 5 mm): manufactured by Fujiki Sales Co., Ltd.) Introduced.
- the oil is arranged in the space above and below the granular titanium oxide layer and is circulated by a circulation pump connecting the above and below the above space, so that the oil is moved from the upper side to the lower side.
- the structure was made to pass repeatedly.
- the circulation rate was 1.5 liters per minute.
- the temperature of the oil was set to 90 ° C. by a heater provided in the reaction tank.
- the tank is connected to the titanium oxide layer from the bottom of the reaction tank using the suction pressure.
- Outside air was introduced into the reaction tank, and air was discharged from the venting filter to the oil in the reaction tank in order to supply the titanium oxide layer with air evenly.
- the air was humidified with a humidifier. A portion of the oil is sampled every 2 hours, placed in a glass room that is cut off from 20 cm 3 of outside air in a room with a room temperature of 24 degrees, and the odor measuring instrument WB-121F made by Otoka Science is set up.
- the sample was allowed to stand for 30 minutes and stabilized, and then the odor of the specimen was measured in a glass case.
- the initial 126-point value of crude oil was 74 points after 2 hours, 67 points after 4 hours, 62 points after 6 hours, 60 points after 8 hours, 57 points after 10 hours, 12 48 points after 14 hours, 46 points after 14 hours, 50 points after 16 hours, and the value dropped to 36.51% after 14 hours (Fig. 2).
- Example 2 The experiment was repeated under the same conditions as in Example 1. Crude oil odor 126 points 69 points after 2 hours, 63 points after 4 hours, 58 points after 6 hours, 55 points after 8 hours, 52 points after 10 hours, 43 points after 12 hours It was 41 points after 14 hours and 43 points after 16 hours, and the value dropped to 33.88% after 14 hours (Fig. 2). As shown in Examples 1 and 2 above, it is possible to efficiently deodorize the oil by supplying air to the photocatalyst by aeration, and even if the catalytic reaction is performed for more than 6 hours, a comparative example described later There was no burning smell in the oil as shown in FIG.
- Example 3 An experiment was conducted in the same manner as in Example 1 except that a mixed gas of air and hydrogen was introduced into the titanium oxide layer.
- Aegis X manufactured by Sue Engineering Co., Ltd. was used as a water electrolysis device, and the obtained hydrogen (about 10 liters per minute) was mixed with air and introduced into the titanium oxide layer.
- the oil was circulated in the tank and brought into contact with the titanium oxide. A part of the oil was sampled at intervals of 1 hour from 1 hour to 5 hours, and the odor was measured with an odor meter. Crude oil odor of 120 points is 75 points after 1 hour, 61 points after 2 hours, 57 points after 3 hours, 49 points after 4 hours, 47 points after 5 hours, and after 5 hours, The value dropped to the initial 39.2% ( Figure 3).
- Example 4 The experiment was repeated under the same conditions as in Example 3. Crude oil odor 120 points is 77 points after 1 hour, 63 points after 2 hours, 55 points after 3 hours, 51 points after 4 hours, 47 points after 5 hours, and after 5 hours, The value dropped to the initial 39.2% ( Figure 3).
- Example 5 For comparison with Examples 3 and 4, an experiment was performed in which only air was supplied to titanium oxide, and the odor was measured by sampling oil at the same time course. Crude oil odor of 120 points is 78 points after 1 hour, 67 points after 2 hours, 60 points after 3 hours, 56 points after 4 hours, 55 points after 5 hours, and after 5 hours, The value dropped to 45.8% at the beginning (Figure 3). As shown in Examples 3 to 5, by supplying a mixed gas of air and hydrogen to the catalyst layer, the odor can be reduced more effectively in a shorter time than when only air is supplied. Turned out to be possible.
- Comparative Example 1 The coconut oil was brought into contact with the titanium oxide under the condition that oxygen and / or hydrogen was not introduced into the titanium oxide layer. 2.3 kg of titanium oxide and 2.3 kg of pressed oil (crude oil) were introduced into the reaction tank. The temperature of the oil was set to 90 ° C, and the oil was brought into contact with titanium oxide by stirring with a stirrer under counter pressure. The odor of the oil sampled every hour was measured, and the odor of crude oil was 78 points. The odor increased to 47 points by the 6th hour, but thereafter the odor increased. The deodorization rate was up to 60.3% at the stage after 6 hours, and the odor value increased more rapidly at 8 hours (FIG. 4). The odor was accompanied by a burning odor different from that of the original crude oil.
- Example 6 Into a 200 liter reaction tank, 140 liters (128 kg) of kerosene and 50 kg of titanium oxide were introduced for oil treatment. The circulating amount of oil was 1 liter per second, and a mixed gas of air and hydrogen (molar ratio 1: 1) was supplied to the catalyst in the reaction tank at a rate of 10 liters per minute. The oil temperature was set at 80 ° C. A portion of the oil was sampled every 20 minutes and the odor point was measured. The crude oil odor value of 76 points became odor point 26 after 180 minutes, and the value dropped to the original 36.8% (Fig. 6).
- transducing air into a catalyst layer is shown.
- transducing the mixed gas of air and hydrogen to a catalyst layer is shown.
- 2 shows the odor change over time when oil is refined without introducing oxygen and / or hydrogen into the catalyst layer. The time required to raise the temperature by 10 ° C. when the cocoon oil is heated is shown. It shows the reduction in odor when refining oil using 140 liters of oil, 50 kg of catalyst.
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Abstract
Description
しかしながら、200℃を超える高温での加熱を伴うこれらの過程では脂肪酸組成に変成が起こり、もともと天然には存在しないトランス異性体が発生する。近年、世界各国の研究によってこのトランス型脂肪酸の摂取が健康に悪影響を与えることが指摘されており、ヨーロッパをはじめ、2005年にはアメリカでも食用油におけるトランス型脂肪酸の含有の有無を義務付ける法律が施行されるに至っている。日本においてもトランス型脂肪酸の危険性の認識度が高まってきており、それに伴いトランス型脂肪酸を発生させずに植物油の精製を行う方法の開発が行われている(特許文献1)。しかしながら、高温加熱を行わずに油を精製する方法(例えば活性炭のみにより精製する方法)は、十分な精製効果を得るために長い時間が必要とされたり、歩留まりが低い場合が多く、また、これらの要因によりコストが掛かるため、実際に商業ベースで使用できるようになるためにはまだ多くの改善が必要とされているのが実情である。
即ち、本発明は、粒状光触媒の層が設けられており、該層の粒状光触媒の間を処理されるべき原料天然油と、酸素および/または水素が通過できるようになっている反応タンクに、処理されるべき原料天然油を入れた後、粒状光触媒層の内部に酸素および/または水素を導入しつつ、該原料天然油を循環しながら粒状光触媒に接触させ、かつ、反応タンク内の温度を40~110℃に保って、原料天然油を精製することを特徴とする、天然油の精製方法を提供する。
そこで、反応タンク上部蓋を開放した対圧環境の状態で、反応タンク内の天然油温度を90℃~110℃に保って原料天然油を循環しながら粒状光触媒に接触させた場合、紫外線照射で24時間~48時間反応させて得られたのと同様の効果を6~8時間で得ることができた。
さらに反応タンク上部を蓋し、液面上部の空間を減圧、同時に、反応タンク底部の抜気孔から、酸素および/または水素を導入したところ、反応タンク内の天然油温度90℃以下で、対圧環境下95℃~105℃の油温度でえられるものと、ほぼ同等もしくはそれ以上の分解還元反応が得られた。本発明は、上記の検討により完成されたものである。
以下、実施例により本発明をより詳細に説明するが、本発明はこれらに限定されるものではない。
椿の種子を圧搾して得られた椿油の原油2.3kgおよび酸化チタン(PIPチタングリッド(直径5mmの球状):不二機販売社製)2.3kgを反応タンク(ステンレス鋼製、容量20リットル)に導入した。反応タンク内で、粒状酸化チタンの層の上下の空間に椿油を配した配置とし、前記の上下の空間を繋いだ循環ポンプによって循環させることにより、油を粒状酸化チタン層を上側から下側に繰り返し通過させる構造とした。循環量は毎分1.5リットルとした。
油の温度は、反応タンクに設けたヒーターによって90℃に設定した。また、真空ポンプを用いて触媒反応タンク上部の空間の空気を真空ポンプで吸引(真空度30kPa)することにより、反応タンクの底部から酸化チタン層に連結した配管から、引圧を利用してタンク外の空気を反応タンク内に導入し、さらに酸化チタン層に均等に空気を供給させるため抜気用フィルターから反応タンク内の油に空気を放出した。また、空気をタンクに導入する前に、加湿器で空気を加湿した。
2時間毎に油の一部をサンプリングし、室温24度の換気された部屋で、20cm3の外気と遮断されたガラスケースに検体をおいて、音香科学製臭い測定器WB-121Fを立ち上げ後30分放置し、安定した後に、検体の臭気をガラスケース内で計測した。その結果、当初の原油の臭気126ポイントの値が、2時間経過後に74ポイント、4時間経過後に67ポイント、6時間経過後62ポイント、8時間経過後に60ポイント、10時間経過後に57ポイント、12時間経過後に48ポイント、14時間経過後に46ポイント、16時間経過後に50ポイントとなり、14時間経過後には当初の36.51%に値が低下した(図2)。
実施例1と同じ条件で繰り返し実験を行った。原油の臭気126ポイントの値が、2時間経過後に69ポイント、4時間経過後に63ポイント、6時間経過後58ポイント、8時間経過後に55ポイント、10時間経過後に52ポイント、12時間経過後に43ポイント、14時間経過後に41ポイント、16時間経過後に43ポイントとなり、14時間経過後には当初の33.88%に値が低下した(図2)。
上記の実施例1及び2に示される通り、エアレーションにより空気を光触媒に供給することによって油を効率的に脱臭すること可能となり、また、6時間を超えて触媒反応を行っても後述の比較例に示すような油に焦げ臭さは生じなかった。
酸化チタン層に空気と水素の混合気体を導入した以外は実施例1と同様に実験を行った。
水の電気分解装置としてスーエンジニアリング社製のイージスXを使用し、得られた水素(毎分約10リットル)を空気と混合して酸化チタン層に導入した。油をタンク内で循環させて酸化チタンに接触させて1時間後から5時間後まで1時間間隔で油の一部をサンプリングし、臭気計で臭気を測定した。原油の臭気120ポイントの値が、1時間経過後に75ポイント、2時間経過後に61ポイント、3時間経過後57ポイント、4時間経過後に49ポイント、5時間経過後に47ポイントとなり、5時間経過後には当初の39.2%に値が低下した(図3)。
実施例4
実施例3と同じ条件で繰り返し実験を行った。原油の臭気120ポイントの値が、1時間経過後に77ポイント、2時間経過後に63ポイント、3時間経過後55ポイント、4時間経過後に51ポイント、5時間経過後に47ポイントとなり、5時間経過後には当初の39.2%に値が低下した(図3)。
実施例5
実施例3及び4と比較するため、酸化チタンに空気のみを供給した実験を行い、同じタイムコースで油をサンプリングして臭気を測定した。原油の臭気120ポイントの値が、1時間経過後に78ポイント、2時間経過後に67ポイント、3時間経過後60ポイント、4時間経過後に56ポイント、5時間経過後に55ポイントとなり、5時間経過後には当初の45.8%に値が低下した(図3)。
実施例3~5に示されるように、空気と水素との混合気体を触媒層に供給することにより、空気のみを供給した場合と比較して、短時間でより効果的に臭気を減少させることができることが判明した。
酸化チタン層に酸素および/または水素を導入しない条件で椿油を酸化チタンと接触させた。酸化チタン2.3kg、搾油した椿油(原油)2.3kgを反応タンクに導入した。油の温度を90℃に設定し、対圧下、スターラーでの撹拌により油を酸化チタンに接触させて触媒反応を行い、1時間ごとにサンプリングした油の臭気を測定したところ、原油の臭気78ポイントの値が、6時間目までに47ポイントまで低下したものの、それ以降は臭気が上昇した。脱臭率は6時間後の段階で当初の60.3%までであり、8時間目にはさらに急激に臭気の値が増加した(図4)。
なお、臭気は当初の原油の臭いとは異なる焦げ臭さを伴うものであった。
椿油の加熱に対する耐性を調べるため、20℃の椿油を一定の熱源で加熱した場合に10℃昇温するために必要な時間(秒数)を計測した。その結果、60~90℃の温域では20秒程度で油の温度が10℃上昇するが、それ以上の温域では必要な熱量が大幅に増加することが判明した(図5)。これは、油の熱に対する耐性が大きく変化したためと考えられ、特に100℃を超えるような高温においては椿油の変性につながるものと考えられる。よって、例えば100℃以下、好ましくは90℃以下の温度で椿油を酸化チタンと接触させることにより、焦げ臭さを発生させることなく精製を行うことができることが推測される。この参考例から、減圧下における触媒反応の促進には、空気との接触による焦げ臭さの発生をおさえる効果があることが確認された。
200リットルの反応タンクに椿油140リットル(128kg)及び酸化チタン50kgを導入し、油の処理を行った。油の循環量は毎秒1リットルとし、空気と水素の混合気体(モル比1:1)を毎分10リットルで反応タンクの触媒に供給した。油の温度は80℃に設定した。
20分毎に油の一部をサンプリングし、臭気ポイントを測定した。原油の臭気76ポイントの値が180分経過後には臭気ポイント26となり、当初の36.8%に値が低下した(図6)。
2.粒状光触媒
3.油
4.空間
5.循環ポンプ
6.真空ポンプ
7.気体導入管
8.エアレーションフィルター
Claims (11)
- 粒状光触媒の層が設けられており、該層の粒状光触媒の間を処理されるべき原料天然油と、酸素および/または水素が通過できるようになっている反応タンクに、処理されるべき原料天然油を入れた後、粒状光触媒層の内部に酸素および/または水素を導入しつつ、該原料天然油を循環しながら粒状光触媒に接触させ、かつ、反応タンク内の温度を40~110℃に保って、原料天然油を精製することを特徴とする、天然油の精製方法。
- 光触媒が酸化チタンである、請求項1記載の方法。
- 原料天然油と粒状光触媒との接触を4~16時間行う、請求項1又は2記載の方法。
- 酸素および/または水素が加湿されている、請求項1~3のいずれか1項記載の方法。
- 反応タンク内部を減圧することにより、引圧により粒状光触媒への酸素および/または水素の導入量を調整する、請求項1~4のいずれか1項記載の方法。
- 粒状光触媒に供給される酸素および/または水素が、水の電気分解により得られたものである、請求項1~5のいずれか1項記載の方法。
- 原料天然油が植物油である、請求項1~6のいずれか1項記載の方法。
- 植物油が椿油である、請求項7記載の方法。
- 反応タンク内の温度を80~110℃に保って、原料天然油を精製する請求項1~8のいずれか1項記載の方法。
- 反応タンク内の温度を40~90℃に保って、原料天然油を精製する請求項1~8のいずれか1項記載の方法。
- 請求項1~10のいずれか1項記載の方法により精製された天然油。
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CN200980135798.8A CN102144023B (zh) | 2008-07-07 | 2009-07-07 | 天然油的精炼方法 |
CA2729939A CA2729939C (en) | 2008-07-07 | 2009-07-07 | Method for purifying natural oil |
JP2010519779A JP5534455B2 (ja) | 2008-07-07 | 2009-07-07 | 天然油の精製方法 |
AU2009269192A AU2009269192B2 (en) | 2008-07-07 | 2009-07-07 | Method for purifying natural oil |
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- 2009-07-07 CN CN200980135798.8A patent/CN102144023B/zh not_active Expired - Fee Related
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CA2729939C (en) | 2016-09-20 |
CA2729939A1 (en) | 2010-01-14 |
JP5534455B2 (ja) | 2014-07-02 |
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