SLE00 Computer Controlled and Touch Screen Solid-Liquid Extraction Pilot Plant

COMPUTER CONTROLLED AND TOUCH SCREEN SOLID-LIQUID EXTRACTION PILOT PLANT - SLE00

Unit: SLE00. Computer Controlled Solid-Liquid Extraction for High Temperature Unit

COMPUTER CONTROLLED AND TOUCH SCREEN SOLID-LIQUID EXTRACTION PILOT PLANT - SLE00

Unit details. Three liquid dosing pumps

COMPUTER CONTROLLED AND TOUCH SCREEN SOLID-LIQUID EXTRACTION PILOT PLANT - SLE00

Unit details. Spray nozzles

COMPUTER CONTROLLED AND TOUCH SCREEN SOLID-LIQUID EXTRACTION PILOT PLANT - SLE00

Process diagram and unit elements allocation

COMPUTER CONTROLLED AND TOUCH SCREEN SOLID-LIQUID EXTRACTION PILOT PLANT - SLE00

SLE00/SOF. SLE00 Software. Main Screen

COMPUTER CONTROLLED AND TOUCH SCREEN SOLID-LIQUID EXTRACTION PILOT PLANT - SLE00
COMPUTER CONTROLLED AND TOUCH SCREEN SOLID-LIQUID EXTRACTION PILOT PLANT - SLE00
COMPUTER CONTROLLED AND TOUCH SCREEN SOLID-LIQUID EXTRACTION PILOT PLANT - SLE00
COMPUTER CONTROLLED AND TOUCH SCREEN SOLID-LIQUID EXTRACTION PILOT PLANT - SLE00
COMPUTER CONTROLLED AND TOUCH SCREEN SOLID-LIQUID EXTRACTION PILOT PLANT - SLE00

SISTEMAS INOVADORES

The Computer Controlled Solid-Liquid Extraction for High Temperature Unit, "SLE00", consists of a pilot scale installation that allows the extraction of solutes from a solid matrix using different types of solvents and with variable operating conditions, which gives the unit great versatility.

Ver descrição geral

NOTÍCIAS RELACIONADAS

Descrição Geral

The Computer Controlled Solid-Liquid Extraction for High Temperature Unit, "SLE00", allows the separation of a solute from its solid matrix by direct contact with a suitable solvent.

The unit incorporates five columns that can store up to 18 vessels of about 200 ml capacity, which allows loading up to 15 – 18 liters of solids. The PTFE and stainless steel vessels are loaded with the solid prior to the operation, and then the columns are filled by stacking the vessels on top of each other.

Once the unit has been preloaded and correctly assembled, the servomotors that drive the different carousels are started. The feeding carousel doses the sieves into the extraction zone, one by one.

In the extraction zone, the solid from each sieve undergoes six different stages, with three consecutive extraction and draining cycles.

After each extraction stage there is a resting stage that allows the solvent to drain, optimizing the recovery of the solute. This unit allows for a countercurrent solid-liquid extraction process, which is the most commonly used in the industry because it is the most efficient. The solid is depleted from the first to the last stage, while the solvent is concentrated in solute from the last to the first stage.

When the extraction stage is finished, the depleted solid passes to the emptying carousel, where the vessels are dosed into five columns similar to the feed columns. The sieves fall into these columns by gravity and will remain there until the process is finished.

The liquid used as solvent for the extraction starts from the storage tank or fresh solvent tank. This solvent is pumped by a dosing pump to the last stage of extraction of the solid (which corresponds to the first stage of solvent extraction), the solvent passes through a heating hose that raises the temperature of the liquid and is injected into the container with the solid through a spray nozzle. The bottom of the vessels on which the solid is placed is made of stainless steel mesh which allows the solvent together with the solute to pass through, but retains the solid material. The solvent is collected at the bottom of the unit body in a compartment with an outlet leading to another dosing pump, the solvent is reheated and fed to the second extraction stage. The same process then takes place until the solvent is fed to the first extraction stage.

When the solvent from the first extraction stage is collected (from the point of view of the solid) it is completely exhausted, having the maximum concentration of solute, therefore, it is led to the spent solvent storage tank.

This Computer Controlled Unit is supplied with the EDIBON Computer Control System (SCADA), and includes: The unit itself + Computer Control, Data Acquisition and Data Management Software Packages, for controlling the process and all parameters involved in the process.

EXERCÍCIOS E PRÁTICAS GUIADAS

EXERCÍCIOS PRÁTICOS GUIADOS INCLUÍDOS NO MANUAL

  1. Study of the unit operation of solid-liquid extraction.
  2. Study of the influence of the type of solvent.
  3. Study of the influence of the particle size of the solid.
  4. Study of the influence of the solvent temperature.
  5. Study of the influence of the solvent flow rate.
  6. Study of the influence of the number of extraction stages
  7. Study of the influence of the residence time.
  8. Comparison between series and parallel operation in solid-liquid extraction.
  9. Performance of material balances in extraction operations.
  10. Calculation of partition coefficients.
  11. Solid-liquid extraction with organic and aqueous solvents.
  12. Sensors calibration.

EXERCÍCIOS MAIS PRÁTICOS A SEREM FEITOS COM A UNIDADE

  1. Many students view results simultaneously. To view all results in real time in the classroom by means of a projector or an electronic whiteboard.
  2. Open Control, Multicontrol and Real Time Control. This unit allows intrinsically and/or extrinsically to change the span, gains, proportional, integral, derivative parameters, etc. in real time.
  3. This unit is totally safe as uses mechanical, electrical/electronic, and software safety devices.
  4. This unit can be used for doing applied research.
  5. This unit can be used for giving training courses to Industries even to other Technical Education Institutions.
  6. Visualization of all the sensors values used in the UESLC/HT unit process.
  7. Several other exercises can be done and designed by the user.

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