SOLVENT EXTRACTION PLANT

The purpose of solvent extraction is to remove most of the oil contained in a seed. Extraction is conducted on prepared seeds or generally in case of high oil content seeds, the cakes obtained by pre-pressing.

SOLVENT EXTRACTION CONSISTS OF A SEQUENCE OF FOUR OPERATIONS:

  • Extraction of oil from prepared material with aid of food grade solvent
  • Desolventising-Toasting of the de-oiled seed/meal along with Drying and Cooling of the meal
  • Distillation to remove the solvent from the extracted oil
  • Recovery of solvent, for reuse at extractor level

Advantages

  • Complete CE Certified Plant
  • Solvent loss as less as 0.6 kg on plant capacity 200-500 TPD
  • Soya De-oiled meal contains less than 0.7% oil at DTDC outlet on 10% moisture, urease less than 0.2
  • Fully automated PLC controlled plant for better yields and oil quality
  • Can process Soya, Sunflower, Rapeseed, Canola, Cottonseed, Palm
    Kernel, Sheanut, Ricebran, Groundnut, Copra etc…

EXTRACTOR

Design Advantages

  • Robust Strength in construction
  • Maximum Oil recovery
  • Pre-Constructed in Single piece for minimum site work and low cost installation
  • Pre-Constructed in two pieces for easy transportation to remote areas
  • Complete Stainless Steel Extractor according to customer requirements
  • Low maintenance, ease of operation and long life time
  • Low drive power, mechanical reliability with high quality materials
  • Easy expansion of extractor to increase capacity
  • Fully automated control to adjust extractor drive speed as per inlet feed

DESOLVENTISER TOASTER DRIER COOLER

Great care:
Great care in design and sizing of DTDC to minimize steam and power consumption

Doors:
Pneumatic operated doors to maintain desired levels in each stage

Sweep Arms:
Specially designed sweep arms to reduce power consumption

Combination:
Combination of indirect and live steam for stripping the meal of remaining solvent and toasting at the same time

Optimal use of steam:

  • Rotary valve operated by VFD and controlled by Level controllers in upper stage ensures complete sealing between the DT and DC stages
  • Improved toasting time for good quality meal
  • Plug – o – Seal operated by VFD and controlled by Level controllers in the last stage ensures complete sealing of the DTDC

DISTILLATION & SOLVENT RECOVERY

The extracted oil from the extractor is mixed with solvent and this
mixture is called “Miscella”. 

The process of separation of solvent from the mixture to obtain crude oil is known as Distillation.
During distillation, the solvent is evaporated by heating it to high temperatures and is finally recovered by condensation.

Design Advantages

  • Plant designed using Process Simulation Tool
  • Well designed layout for easy access during operation and maintenance
  • Total contact of miscella from the miscella tank to final oil cooler is designed in stainless steel
  • Specially designed ejector system for optimum vacuum
  • Level & Temperature controls at each stage to maintain uniform flows for steam control
  • Latest design Stripping column to strip the oil completely of any solvent traces
  • Oil is cooled under vacuum to obtain the best quality of oil
  • Adequate surface area condensors for optimum condensation
  • Special Vent air blower to control the solvent losses in air

AUTOMATION

Automation helps in achieving by means of series of control devices, better supervision and understanding of process parameters, lower utility consumptions and higher safety of operation.
The entire process is monitored and controlled by the integrated automation system. System control is based on the PLC with SCADA Operating station (Desktop PC) with easy operator interface and process parameters are monitored and controlled by SCADA system on a screen .

Advantages

  • Reduction of risks attributable to human mistakes and reduction in manpower
  • Reduced Consumption of Utilities
  • Better and constant quality
  • Superior Yields
  • Higher degree of safety
  • Centralized Supervision & Easy management
  • Privileged Access with different levels of password protection
  • Complete Project View
  • Customized Data reports