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The Armfield Catalytic Reactors unit (CEU) utilises the sugar inversion reaction (Sucrose ➞ Glucose + Fructose) to study the performance of packed-bed chemical and biological catalytic reactors. A colorimetric assay is used to determine the degree of conversion using an optical sensor. Assays may be automated using optional flow injection analysis.
The Armfield CEXC family is a range of chemical reactors specifically developed for the teaching and demonstration of chemical reactor capabilities to chemical engineering students. Real chemical reactions take place within the reactors, and Armfield have developed a number of representative reactions which are easy and safe for students to use in the laboratory environment.
New MkII version features precise high-speed mixing and computer control with data logging.
- Flat blade impellor
- Rushton turbine impellor
- Highly visual, with variable-speed mixer with a range of interchangeable impellors
- High-speed mixing available, 50 to 2200 rpm – NEW
- Precise electronic rpm setting – NEW
- Electronic measurement of torque – NEW
- Removable baffles
- Data logging software and computer control – NEW
- True Rushton turbine impellor – NEW
- Precise angle setting for the adjustable flat blade impellors – NEW
- Optional removable heating/cooling coil with temperature sensor and meter – NEW
The CEN comprises a variety of items which introduce different aspects of solids behaviour. The characteristics of the flow of solid materials are relevant to many process industries, particularly in handling powders, pellets, crystals and aggregates.
Apparatus for investigation of mass transfer and gaseous diffusion has traditionally used a capillary tube in a hot water bath, with a travelling microscope used to measure the rate of diffusion over a period of time. Although capable of giving good results, this type of apparatus was not without its disadvantages, particularly ease of use.
- Distillation Engineering Teaching Equipment. The UOP3 laboratory-based distillation columns allow safe hands-on practical training for student engineers and plant operators. Available as either a continuous distillation column or a batch-only version for teaching the fundamentals.
The Armfield 3-Phase Horizontal Separator is a small-scale unit capable of demonstrating the principles and operation of gravity separation and the effect of viscosity, flow characteristics and density difference on separation. The Armfield UOP30 comes with two horizontal separator configurations making the UOP30 a versatile teaching unit.
The UOP20X is a modular system of evaporators for teaching chemical engineering. Using the various modules a wide range of configurations can be implemented: rising or falling film; single or double effect; forward, backward or parallel feed. The evaporators are fully
computer compatible, supplied with educational software including process control and data logging facility.
The UOP4-MkII is a laboratory-scale solid/liquid extractor system for teaching the fundamentals of this important unit operation to chemical-engineering students. The equipment utilises a sophisticated, continuous feed, counter-current flow, multiple-stage, rotary extractor system of the type frequently seen in industrial applications.
Liquid/liquid extraction is a valuable process where separation of one or more components of a liquid mixture is required. The UOP5MkII demonstrates this process in the laboratory so that students may gain a thorough understanding of the technique.
The Armfield Computer Controlled Water Cooling Tower has been designed to give students an appreciation of the construction, design and operational characteristics of a modern evaporative cooling system. The unit is also an excellent example of a specialized heat exchanger, where two streams of fluid flow (water and air) are brought into direct contact and in which there is a mass transfer from one stream to the other.
This small-scale benchtop tray dryer dries solids by passing a stream of hot air over trays of wet material, a method commonly used in industry. It is applicable to the unit operations laboratory and also to food technology education and research.
This laboratory equipment has been designed to enable measurement of molecular diffusivities and, in so doing, to familiarise students with the basic notions of mass transfer theory.
The liquid diffusivity apparatus (CERb) relates to an equimolar counter-diffusion process.