This equipment demonstrates a process for separation of a mixture (one soluble in another) of two liquids of different boiling points.

The unit consists of reboiler, two distillation columns, condenser, reflux tank, top product tank, feed tanks with feed pump, feed preheater, bottom product tanks, measuring instruments, and other accessories.

An initial feed is added to the reboiler where the vapor with higher concentration of the lower boiling point component rises in the distillation column. The vapor leaves the top and is condensed in the condenser and collected in the reflux tank. Part of the condensate in the reflex tank is fed back to the top of the column where heat exchange is taken place with the rising vapor. This results in the vapor phase being richer in the lower boiling point component, and the liquid phase being richer in the higher boiling point component. The liquid phase moves down to the reboiler.

The feed is pumped from feed tanks, preheated in a preheater, before delivery to the distillation column. The feed is partially evaporated in the column on its way to the bottom where it is heated to boiling.

The hot mixture in the reboiler is rich in higher boiling point components is used to preheat the feed and collected in the bottom product tanks.

Two columns, sieve plate column and packed column with Rasching rings, can be interchanged simply by valve control. Lagging is provided for reboiler, sieve column, condenser, and preheater.

The unit is installed on a stainless steel frame.

Instruction manual is also included.

This equipment demonstrates a process for separation of a mixture (one soluble in another) of two liquids of different boiling points.

The unit consists of reboiler, two distillation columns, condenser, reflux tank, top product tank, vacuum pump, measuring instruments, and other accessories.

The liquid mixture is added to the reboiler where the mixed vapor with higher concentration of the lower boiling point component rises in the distillation column. The vapor leaves the top and is condensed in the condenser and the reflux tank. Part of the condensate in the reflux tank is fed back to the top of the column where heat exchange is taken place with the rising vapor. This results in vapor phase being richer in lower boiling point component, and the liquid phase being richer in higher boiling point component. The liquid phase moves down to the reboiler. Thus, the mixture in the reboiler is richer in the higher boiling point component with time.

Two columns, sieve plate column and packed column with Rasching rings, can be interchanged simply by valve control. Lagging is provided for reboiler, sieve plate column, and condenser.

The unit is installed on a stainless steel frame.

Instruction manual is also included.

This bench top equipment is for studying the behavior of a fluidized bed and heat transfer coefficient of a hot surface in a fluidized bed.

The unit consists of a glass cylinder with a bottom chamber and a top assembly. The bottom chamber has as a built-in air distributor. The distributor can be replaced by a locally designed one for students and other investigations. The top assembly consists of an air filter and a heating element, temperature probes and a pressure probe. The glass cylinder assembly is attached to a panel through the top assembly and can be easily removed and installed.

The glass cylinder is partially filled with granular bed material. Air is supplied to the bottom chamber. The air fluidizes the bed material and escapes to the atmosphere through the top filter.

A small air compressor is provided. The air flow rate is measured by a flow meter. A heating element is provided in the glass cylinder. Temperature probes are provided for measurement of heating element surface, fluidized bed and air inlet to the bottom chamber. A water manometer measures pressure drop in the fluidized bed. The heating element, temperature probes and pressure probe can move up and down at any position in the glass cylinder.

Safety features include overheating and overpressure. A second temperature probe on the heating element limits heating element maximum temperature by a controller. A pressure relief valve is provided at inlet airline to limit maximum pressure in the glass cylinder due to blocked filter.

Instruction manual is also included.

This bench top apparatus is designed for a study of fluid bubbling phenomena in fixed and fluidized beds of solid particles.

The apparatus consists of a water and an air system. Each has a fluidized column and a pump. Air or water is supplied to the column via bottom porous plate and escape to the top. Control valve varies the rate of flow. Two sizes of bed materials are supplied.   Measurement of flow rate is by flow meter and pressure drop is by manometer.  

Instruction manual is also included.

This bench top unit is designed for a study of mixed multi stage process dynamics.

The unit consists of three reactor vessels connected in series. Each reactor has a variable speed agitator. Two reagent vessels, each with a reagent pump and a flow meter, feed the reagents to the first reactor. Piping connection allows the reagents to be fed directly to any reactor. A drain tank under each reactor and a dead time coil are provided.

Conductivity probes are fitted to each reactor for monitoring the process. Instruments are provided for indicating reagent flow rate and conductivity.

Instruction manual is also included.