Edible Oil Cake Solvent Extraction Plant

Solvent extraction is the process to ensure extraction of  oil from solvent or crude  i.e, Soyabeans, sunflower,cotton seeds, rapeseeds, peanuts, canola, rice-bran, palm kernel etc.Solvent Extraction Plants are employed  to perform the operation - that is to  extract oil directly from sunflower seeds, peanuts, cotton seed, palm kernel, canola, copra, castor and others. These are usually fitted with  with drum shaft, brush shaft and mesh cleaning arrangement. Oil extraction usually starts from soybean seed oil preparation that must  be dehulled, cleaned, and dried before sending to the next extraction process.

Solvent extraction process comprises:-

1) Preparation of seeds for extraction

2) Desolventising

3) Distillation

In the soybean oil extraction for example , the soybeans must be cut into flakes and then passed through a percolation extractor  before being  immersed with a solvent.Oil refining is another step  in the soybean oil processing. This is because  oil obtained by pressing or solvent extraction process always contains impurities such as phospholipids, FFA, pigment, off-flavor and other impurities. The oil is made  edible by elimination of  the impurities  through a process is called "Oil Refining".

Solvent extraction plant comprises of:

●        Seed Preparation: Roller mill / Flaking mill / Cooker-Conditioner / Expander-Extruder

●        Roller Mill: for  preparation of oilseeds prior to direct solvent extraction.

●        Cookers-Conditioner: Custom Designed to condition the seed for better extraction through  heating and optimising  moisture content

●        Flaking Mill: In built  smooth rolls suitable for flaking oilseeds or cakes prior to solvent extraction.

THE PROCESS

The Horizontal model comprising of articulated band conveyor assembly is fed  the CRUDE       from the Feed Hopper and transport  at a very slow predetermined speed.This moves  from the feed to the discharge end. The conveyor rides over the rails fitted  inside the Extractor and on specially constructed sprocket at either end. A customized  adjustable damper is fitted  for height adjustment of the bed of material on the chain conveyor. A  series of Spray breakers for the perfect spray of the solvent is also present on the moving bed, with  provision for sight glasses. The Band Conveyor Assembly is custom  designed to act as filter bed for eliminating the fines.To efficaciously clean the  mesh, it is  replete  with rotary brushes & mesh cleaning system .

THE MECTECH ADVANTAGE

MECTECH's belt type horizontal extractor, desolventizing toaster, distillation system and heat recovery system are custom designed to optimize efficiency. Long years of experience & expertise enables us to design maximum    efficiency in order to ensure the finest  performance in terms of quality of oil, quality of DOC, consumption of utilities and hexane loss.

Soybean The soybean oil plant is a version of seed processing plant. In order to process quality soybean oil, a series of soybeanoil processing machinery will be involved.

The strides made in solvent extraction technology are going to have a far-reaching effect on the extraction scenario - thanks to MECTECH.Following the shifting trends towards continuous type extraction this company has so modified the present state of extraction equipment that hexane loss is just minimal.

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How does Solvent Extraction Plant Work

Solvent extraction is employed to separate compounds based on the differences in the relative solubilities in two immiscible liquids. More conveniently, it can be described as the separation/extraction of a substance from a mixture by preferentially dissolving the substance to be extracted in a suitable solvent. It is usually chosen when a soluble compound needs to be separated from an insoluble compound or a complex matrix. LLE or Solvent Extraction is widely used in the production of fine organic compounds, the processing of perfumes, the production of vegetable oils and biodiesel, and in related industries.   Immiscible liquids refers to liquids do not mix and instead separate into layers. These properties are utilized for separation  of  Organic compounds that exhibit  physical property  of greater solubility  in organic solvents, and these solvents are often found to be  immiscible in water. These Organic compounds can be easily be extracted in aqueous form by the addition of benzene, chloroform etc. These are then collected after they settle into two layers and the non-aqueous layer is removed. After distillation   the purified compound is obtained. 

Commonly referred to as Liquid–liquid extraction

(LLE), Solvent Extraction is preferred when substances like edible oils need to be separated or extracted   based on the differences in relative solubilities in two different immiscible liquids. The transfer occurs due to different chemical potentials. This occurs when  the overall system of protons and electrons constituting  the solutes and the solvents have greater  stability of  configuration and exhibit lower free energy after  completion. The solvent thus produced then is obviously enriched in the solute(s) and is referred to as extract. The depleted feed solutions usually termed as the definite. The solvent extraction plants are used where oil is extracted from oil seeds like soybean, sunflower, cottonseed, other oil seeds and oil cakes like mustard cake, groundnut cake and rice bran. In such solvent extraction, it's advantageous to do extraction in successive stages using smaller lots of solvents rather doing extraction once using the entire lot. 

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Solvent Extraction Plant Process by Mectech

Solvent extraction process - An Overview

Solvent extraction is the process of extracting oil from oil cake by making use of Hexane or other solvents. This process is implied after the preparatory section for the purpose of extracting oil from the expelled oil cake. Mectech, the leading company in solvent extraction and edible oil refining provides solvent extraction plant with latest technologies for high-quality output.

How Mectech’s Belt Type Horizontal Solvent Extractor works?

•    Solvent extractor plant at Mectech includes a Distillation system, a Heat recovery system and a De-solvating Toaster.
•    The extractor helps in removing solvent from the meal and stabilizes its temperature as well as the moisture.
•    The solvent extractor is efficiently designed to achieve best results in terms of quality of DOC, quality of oil, hexane loss and consumption of utilities.

Solvent Extraction process at Mectech

The process of solvent extraction includes multiple sub-steps which involve seed preparation, conditioning of oil seed, flaking of oil seed etc.

•    For extracting crude oil from the seed through the solvent, the seeds are first grinded and treated to bring them to their reduced form which enriches the surface area of seed for the absorption of solvent.

•    The processed meal is further transferred to the solvent extractor plant for treating it with the hexane or any other solvent.

•    The output of the process i.e. the solvents and the solids are further distilled and processed for extracting optimum oil and removing the solvent.

Eminent features of solvent extraction plant @ Mectech

•    Continuous belt-type extractors having a unique multi-spray system are manufactured by Mectech Process Pvt. Ltd. by making use of the latest technology.
 
•    In order to achieve the best quality of DOC, we make use of multi-level De-solvating toaster. 
•    Solvent recovery system and distillation system are used in Mectech’s Solvent extractor plant which ensures minimum loss of solvent. 

•    Solvent Extraction plant offered by Mechtech produces best quality crude oil having minimum or no impurities and optimum freshness.

•    It has the capability to produce oil with optimum freshness.
 
Other Salient features

•    The solvent extractors offered by Mectech Group are highly energy efficient.

•    Our solvent extraction systems are highly user-friendly and easy to operate.

•    Our extractors are resistant to corrosion and have a robust construction.

•    At Mectech, we also offer solvent extraction plant with customization in order to meet the varying requirements of our clients.
   

Advantages of Solvent Extraction plant @ Mectech

•    With Mectech solvent extraction plant, the loss of solvent is only 1.5 liters per ton which is very low.

•    The handling cost of Mectech extractor is also very low which makes them cost effective without compromising the quality.

•    Our solvent extractor plant is very reliable as they come with inbuilt safety features.
 
•    Mectech Group has the capacity of plant building and supplying capacity range amid 50 to 2000 tons per day.

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Mectech’s Belt Type horizontal -Solvent Extraction Plant

Solvent Extraction:
 
With the proven experience of 38 years in the Oil and Fat Industry, Mectech Process Engineer Pvt. Ltd. is providing the most efficient Solvent Extraction Plant. Solvent Extraction is basically a technique used to separate oil from seeds efficiently with the effective use of solvent or Hexanes.  It is a very cost-effective process, which is utilized in the oil industry.

Work Model of Mectech’s Belt Type Horizontal Solvent Extractor:

•    Our extractor consists of a De-solvating Toaster, a Distillation system, and a Heat recovery system
•    This extractor validates the removal of the solvent from the meal and steadying its moisture as well as temperature.
•    Offered Extractor is proficiently designed to provide the best performance in terms of quality of oil, quality of DOC, consumption of utilities and minimize hexane loss.

The Procedure of Mectech Solvent Extraction:

Solvent extraction includes many procedures used to extract oil from the seeds by the utilization of a solvent.

•    Post grinding, the seeds are now already in reduced form that enriches its surface area for solvent absorption
•    This meal is transferred to the extractor, where it comes in contact with solvent or hexane
•    The solids and the solvents are the outputs which are further processed and distilled for optimal extraction of oil and solvent removal.
Prominent features of Solvent extraction

•    Mectech is manufacturing latest continuous belt type extractor with multi-spray system
•    Multi-level De-solvating toaster used to accomplish the best quality of DOC of exportable  quality
•    Solvent Extractor offered by us has distillation system and solvent recovery system ensure less solvent loss
•    It has the capability to produce oil with optimum freshness
•    Solvent Extraction plant of  Mectech  ensures  best  quality  crude oil  with  no impurities. 

Other Salient Features of Mectech’s Solvent Extraction Plant:

•    Mectech’s solvent extractor is highly energy efficient
•    Solvent  Extraction  System  offered by  Mectech is  easy  to  operate &  user-friendly
•    Our extractor has robust construction with corrosion resistance
•    Mectech  offers  customized  solvent  extraction  plant

The Advantage of Mectech Solvent Extraction Plant:

•    Our extractor keeps the loss of solvent as low as 1.5 liters per ton
•    Solvent extraction plants designed and supplied by Mectech are very cost -effective and ensures less cost of  handling. 
•    We have inbuilt safety features in this extractor, which makes it very reliable
•    Mectech  has the capacity to build and supply plants from 50 to 2000 tons per day.

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