QRCB Réacteurs Catalytiques

CATALYTIC REACTORS - QRCB

SYSTEMES INNOVANTS

The Catalytic Reactors, "QRCB" is an unit designed to perform the saccharose hydrolysis reaction in a continuous way by using catalytic fixed-bed reactors.

Voir description générale

Description Générale

The Catalytic Reactors, "QRCB" is an unit designed to perform the saccharose hydrolysis reaction in a continuous way by using catalytic fixed-bed reactors.

Saccharose hydrolysis is the industrial process to obtain glucose and frustose from saccharose. It is a reversible chemical reaction.

The "QRCB" unit is composed of three fixed-bed reactors. Two of them are fixed-bed reactors for chemical catalysis with the same chemical catalyst, called ionic exchange resin but with different grain size. The third reactor is a fixed-bed reactor for biological (enzymic) catalysis, with an immobilized enzyme. To start the hydrolysis process our product (saccharose) has to pass through this enzyme.

Saccharose hydrolysis is favoured with temperatures around 50 ºC – 60 ºC. For that end, the reactors have a jacket through which hot water will flow. The water temperature is controlled through the potentiometer of the thermostatic bath.

Feeding saccharose to our reactors is done through a peristaltic pump which allows the regulation of speed by using a potentiometer.

The resulting solution is pumped to the final-product flask. From this point on it will be analysed with a spectrophotometer.

As an optional supply, there is the possibility of acquiring the additional recommended element Flow Injection Analysis (FIA) Unit, "QRCB-IF". This unit is a Flow Injection Analysis system, which is used to measure the conversion degree of the reaction of the saccharose hydrolysis in a continuous way.

Accessoires

Des exercices et pratiques guidées

EXERCICES GUIDÉS INCLUS DANS LE MANUEL

  1. Study of the principles of catalytic fixed-bed reactors.
  2. Effect of the variation in the particle´s size in the effectiveness of a fixed-bed reactor.
  3. Comparison of chemical and biological (enzymic) catalysis.
  4. Checking the influence on different variables (feed flow, temperature of reaction, reagents concentration) on the obtained final product.
  5. Spectrophotometer calibration.
  6. Using the spectrophotometer and product analysis.
  7. Study of the "FIA" Flow Injection Analysis technique and principles (with QRCB-IF optional accessory).
  8. Examination of the reproducibility and sensitivity of the "FIA" analysis method as a function of the flow rate and sample concentration (with QRCB-IF optional accessory).

PLUS D'EXERCICES PRATIQUES À EFFECTUER AVEC CETTE ÉQUIPEMENT

  1. Studies of steady and unsteady state catalysis.
  2. Flow characterisation in a fixed-bed.
  3. Mass balances.
  4. Determination of steady state and unsteady state kinetics of a catalytic fixed-bed reactor.

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