Cottonseed Oil Refinery Plant Equipment for Edible Oil Production

Cottonseed oil after solvent extraction still have a certain content of residual solvent and other impurity, thus the further process of cottonseed oil refinery plant is quite important part to help users make the most efficient oil refining from crude cottonseed oil.

cottonseed oil refinery plant

Cottonseed oil refining process, there are two main methods: alkali refining and physical refining method. Alkali lye is added to the refining process of crude oil containing a weak acid for the neutralization reaction. The impurities in the crude oil (free fatty acids, phospholipids, gum, wax, pigment, oil-soluble impurities and the cake crumbs, Sediment etc.) to the oil adsorption of the foot, thus getting the purpose of ultimately cottonseed oil refinery; physical refining and bleaching method of acid value greater than when the 2 mgKOH / g, the only need to be physically refined.
Physical cottonseed oil refinery plant containing gossypol must consider the particularity to ensure the physical refining process gossypol no obvious oxidation or polymerization reaction, for which requires physical refining temperature no higher than 200 ℃, operating residual pressure of not more than 267 Pa use packing style deacidification tower, appropriate to shorten the delay time, deacidification time should be controlled within 10 min. After physical deacidification, acid oil is about 2 mgKOH / g. At the end of the physical cottonseed oil refining and then be treated with an alkali deacidification refining method. Cottonseed oil can be fully refined. The base is used in the production of refined cottonseed oil refining method, this method low investment, low consumption refining, good alkali refining quality, less waste, lower operation and maintenance costs, technology less demanding, is a simple and practical alkali refining process, in particular suitable for small and medium sized oil refinery applications.

Acid-base neutralization reaction

cottonseed oil solvent extraction plant

From pre-pressing workshop and cottonseed oil extraction plant delivery over the hair oil contains many impurities, such as free fatty acids, phospholipids, gum, wax, pigments and other oil-soluble impurities and cake crumbs, sediment and other solid impurities. In addition, cottonseed also contains 0.63% ~ 2.63% of gossypol in feed embryo steaming and roasting process, some combination of gossypol and protein production of gossypol, gossypol is another part of the process crude cottonseed oil into edible oil. Adding alkali content in oil of 0.2% to 0.5% of the amount over the base neutralization, alkali refining temperature is generally divided into low concentration of alkali (initial temperature 20 ~ 30 ℃, alkali concentration 20 ~ 25 °,and high temperature light soda (initial temperature of 75 ℃, the concentration of 1.0 ~ 16 ° . The former more common application, which is mainly applied to the lowest of acid impurities and less light color hair oil. Alkali concentration is generally 12 ~ 20Be range depending on the temperature of the alkali refining, oil color, acid value may be. A base crude oil and mixed in the reaction at an appropriate temperature, and the flocculation reaction tank, while the crude oil in a creamy, gossypol and other components are adsorbed dye in the soap feet.
Centrifugation

Separation temperature controlled at 70 ~ 80 ℃, used in the production of the soap off the centrifuge is a centrifugal machine, in order to achieve a better separation effect, when the temperature is not too high off the soap, causes the evaporation of the solvent is too high, the impact of the centrifuge normal separation, the solvent contained in the normal soap (1% to 3%). At the same time resulted in illiquid soap bubble, resulting soap is difficult to transport pump. Cottonseed oil storage tanks will also be transported to cool down.

Rice Bran Solvent Extraction and Oil Refinery Plant

Rice bran is a kind of special oilseeds with quite low oil content, which is especially applicable to getting edible rice bran oil by one time solvent extraction and oil refinery process. Rice bran one time extraction needs to go through rice bran pretreatment and rice bran oil extraction processes. Rice bran pretreatment contains steam flaking, granulation and expansion. There are dry and wet puffing available. Rice bran oil extraction plant goes through a bit different oil extraction method, which pays more attention to rice bran extraction and wet bran desolventization process.

rice bran oil extraction plant

Rice bran oil extraction process obtains a kind of high acid value crude oil. The adoption of physical rice bran oil refining process has obvious advantages in increasing the rate of oil refining and economic aspects. Rice bran oil refinery process includes degumming, blenching, deacidification, dewaxing, degreasing. The key point is distillation deacidification, degumming and deacidification are especially important.
In practical applications, rice bran oil physical refinery is adjustable according to rice bran raw material condition, refined rice bran oil product quality grade, combined with chemical oil refinery to make free adjustment of finished rice bran oil.
The time rice bran oil has lower acid value, sometime rice bran passing through fresh treatment can control acid value of rice bran under 6mgKOH/g. This kind of excellent quality crude rice bran oil can also used chemical oil refining process to get high quality rice bran oil. There is no need to consider physical oil refinery process.

rice bran oil refinery plant

The adjustment of ordinary rice bran oil and high grade rice bran oil can make rice bran achieve high quality rice bran oil refinery condition. The available rice bran oil after physical oil refinery is available in quite low acid value and good oil color. The oil quality can reach first grade rice bran oil. The time users are processing high acid value rice bran oil, will get third or fourth grade rice bran oil.

One Time Rice Bran Extraction and Oil Refining Process

Low oil content of rice bran as a special fuel, it is suitable for extraction of crude bran oil. Rice bran extraction undergoes a pretreatment and rice bran extract two stages. Rice bran pretreatment contains three kinds of steamed fried, granulation and expansion. Both dry and wet expansions are selectable for users to make further process of rice bran oil solvent extraction.

Rice bran oil extraction process has a bit different extraction method from other bulk oils, which pays more attention to rice bran raw material extraction, wet meal desolventizing. Crude rice bran oil after solvent extraction has got high acid value, the use of physical refining process has obvious advantages in increasing the rate of oil refining and economic aspects. Physical rice bran oil refining comprises degumming, bleaching, deacidification, dewaxing, degreasing, the key step is a distillation deacidification. Degumming and bleaching vital to its pretreatment step. Rice bran oil physical refining process applications in the actual production level of product quality according to the requirements of raw wool bran oil and refined rice bran oil situation, combined with a comprehensive chemical refining process or production of refined oil products of various grades of regulation, made the best use of benefits.

Rice bran is a by-product of rice processing, has a high utility value. Crude rice bran oil is available with the help of solvent extraction process. Edible rice bran oil after rice bran oil refining process can make fully removal of all kinds of impurities. Rice bran has quite low oil content of 14% to 24%, it is very suitable for crude oil extraction with the addition of solvent. Since rice bran contains lipase, usually the acid value of crude rice bran oil is among 10 ~ 30mgKOH/g. However, the acid value of extracted rice bran oil from moldy rice bran or rancidity rice bran can reach as high as 40 ~ 100mgKOH/g. In order to make full control of high acid of rice bran oil, physical oil refining process is highly recommend in order to get high quality rice bran oil.
During one time rice bran oil extraction, rice bran should be processed through steam flaking, granulation and expansion. According to the special nature of the material rice bran, rice bran  oil process plant needs to be adjusted according to wet meal desolventizing technology and equipment.
Since crude rice bran oil is a high acid crude oil, traditional chemical oil refining method has comparatively weak points of improving fine rice bran oil refining rate and economic aspects. However, physical oil refining machine process can make perfect treatment of the problem of high acid value. Physical rice bran oil refining process has superior highlight in processing high acid value crude rice bran oil.
With the gradually mature rice bran oil processing technology and wide spread planting of rice, rice bran oil as a healthy oil is more and more accepted by consumers. One time rice bran solvent extraction and rice bran oil refining technology can also get wide prospect all over the world.

Physical Oil Refinery of Extracted Peanut Oil

There are both physical and chemical oil refining technology, which are applicable for crude oil from pre-pressed peanut cakes. Commonly, chemical oil refinery process can get first grade peanut oil, which is also called peanut salad oil. This chemical peanut oil refinery process has a lot of advantages, but also exists some disadvantages such as auxiliary material consumption, part of neutral oil inevitable phenomenon such as saponfication. It also produces large amount of the water waste and finally cause environmental pollution.

peanut oil press section

Physical oil refining process is a bit different from chemical peanut oil refining. This kind of peanut oil refining technology has advanced features of simple process flow. During peanut oil refine process, there is no neutral oil by saponification and emulsifying phenomenon, thus refining yield high, high quality of refined oil, at the same time there is no waste water pollution problems.
In view of the advantages of physical peanut oil refining process, the company in the original chemical refining leaching peanut oil, based on experiment of leaching peanut oil physical refining. Results of refined oil products are in accord with GB1534-2003 standard for first grade oil leaching of peanuts.
Acid refining and degumming: physical peanut oil refining requires degumming must be thoroughly, because the remaining oil in the phospholipids in the high temperature can decompose, affect the color of the oil, and will cause a peculiar smell. During the process of acid refining degumming in peanut oil refining, users should be cautious with these details below: maintain the stability for phosphoric acid, phosphate in general traffic on small-scale changes on the enzymatic degumming process impact is not big, but the amount of phosphate may not, shall not be less than 1 ‰. Add water is moderate in multi-effect mixer of hot water and hot water before the centrifugal mixer is associated, in 7 ﹪ - 8 total ﹪ (oil). Adding more water, less water added behind the corresponding, and vice versa.
Decolorization: physical refining bleaching clay content is chemical refining clay content, general according to the requirement of oil quality and product added proportion, the range between 1 ﹪ - 2.5 ﹪ (oil). Decolonization condition such as temperature, bleaching time and vacuum degree are the same.
Refining process of acid, free fatty acid and low molecular weight substances under the condition of high temperature and high vacuum and direct steam distilled out.
Adopting physical peanut oil press process, made the peanut oil level indicators all meet the national standards, at the same time to avoid the loss of neutral oil and raw materials consumption, reduce the production costs for the enterprise. Reduced emissions of pollutants such as wastewater and protect the environment.

Rice Bran Oil Refining Plant

Rice is wide panted crop, and rice bran is by product during rice milling process. Rice bran oil refining plant adopts physical oil refining process to make high efficiency refining of edible rice bran oil after rice bran pretreatment and solvent extraction.
Rice bran oil content is 16% to 22%, which contains 60% to 70% unsaturated fatty acid. Rice bran oil after oil refining plant processing contains high nutrient, which is able to provide healthy component for human body health. Rice bran oil can be eaten directly, added in foods or other fields, which is a very helpful and wide applicable edible oil.

Rice bran oil refining plant covers a mature processing flow including washing and degumming, system, alkaline refining, mixed proportion, decolorization, leaching, physical deacidification and deodorization system and final crystallization and maturing system. Among the whole process of rice bran oil refining plant, it is equipped with electrical operating control system in order to make scientific production of edible rice bran oil strictly and successfully.
Even though there is especially mature rice bran oil refining process technology, however, there are still lots of key points should be taken into consideration. During rice bran oil refining plant, there are very strict requirement of crude rice bran oil. For instance, the required moisture and volatile matter of crude rice bran oil should be no more than 0.25%. Impurity contained in crude oil is less than 0.2%, and crude oil acid value is no more than 7mgKOH/g.

In addition, rice bran oil also has very strict quality indictor. The transparency of rice bran oil should be clear and transparent. There is no strange smell after physical oil refining process. The continuous rice bran oil refinery can greatly shorten connection time between rice bran and solvent oil. In addition, the new type physical rice bran oil refining adopts new type continuous deacidification and deodorization craft, which ensures high efficiency processing of vegetable oil.

Oil Press, Extraction and Refining Machine Plant - Oilmachineworld.com

Rice Bran Oil Processing Plant In Bangladesh

Bangladesh has especially long history of rice plant and rich experience with rice processing and rice making products. However, rice bran oil, as a very new and popular project, has newly developed in Bangladesh. More and more rice plant people have begun to concentrating on deep processing of rice and make full use of rice in daily life. As a result, the most advanced rice bran oil processing plant has become very popular in Bangladesh in order to process first-grade rice bran oil with high safety standard and edible oil approval.

Rice bran oil processing plant is playing an especially important part in modern time edible rice bran oil production. Not the same as those of high oil content oilseeds, rice bran oil content is only 13% to 17%. Waste rice bran can be processed into first class rice bran oil through processing flow of rice bran expansion, rice bran oil extraction plant and rice bran oil refining process.
It is not an easy job to get high quality rice bran oil unless great efforts on research and development of the most advanced rice bran oil processing technology. Edible rice bran oil can be available after three major process as listed below:

After rice processing, the waste rice bran should be processed through cleaning, crushing, expansion process for convenience of further step rice bran solvent extraction. Because of low oil content, rice bran oil cannot be pressed out directly from rice bran. On contrary, rice bran is pretreated through expansion and extruding in order to get acquired shape rice bran cake. The expansion rice bran cake will make great convenience in further step solvent extraction since expansion can increase connecting area between rice bran cake and no. 6 solvent.

The pretreated rice bran cake is sent to rice bran oil solvent extraction plant by conveyors. In rice bran extraction plant, rice bran cake is fully immerged into no. 6 solvent in rotary extractor. Crude rice bran oil is available after evaporation and steam stripping, DTDC high efficient energy saving toaster. The unique configuration of tail gas recovery system can obtain perfect absorption result during the whole processing of rice bran oil extraction.

Rice bran oil refinery plant is the final step of obtaining first grade rice bran oil. In order to remove no.6 solvent exiting in crude rice bran oil, rice bran oil refining process machine is quite necessary to help users to get required quality standard rice bran oil. The adoption of electric control system assures the most scientific production of edible rice bran oil in Bangladesh.