TEMA Process B.V.

Drying: 

Removal of liquids by evaporation in a fluid bed dryer for thermally treat of powders, fibres, crystals and pelletized or extruded materials.

Cooling: 

After heating the product during the drying process in most of the cases cooling is required. The fluidbed cooler can be integrated with the dryer or supplied as a separate unit. 

Calcining: 

Thermal  process to remove and evaporate crystalline water.  

Roasting / Texturization:  

Heat treatment to influence taste, flavour and texture.

Torrefaction: 

Torrefaction of biomass is a mild form of pyrolysis at temperatures typical ranging between 200 – 320°C .  During torrefaction the biomass properties are changed to obtain a much better fuel quality for combustion and gasification applications.

Puffing:

Products like rice and wheat are expanded at a high temperature resulting in a lower bulk density and to obtain better cooking properties. 

Sterilization & Pasteurization: 

Natural ST-HT steam sterilization & pasteurization for spices, herbs & botanicals, dried vegetables, seeds & nuts. 

High and low temperature between 103°C – 122°C ( Sterilization) and 85°C – 98°C ( Pasteurization) within maximum of 60 seconds followed by a drying and cooling process. 

Blanching: 

Heat treatment to deactivate enzymes and removal of peels.

Steam Stripping / Inertgas Drying:

Removal of solvents either by inert gas heating or by direct exposure of steam.

Process description

Natural ST-HT steam sterilization / pasteurization for spices, herbs & botanicals, dried vegetables, seeds and nuts by TEMA Process B.V.

The continuous process uses a very special continuous autoclave with inside a so-called shaking bed conveyor and self cleaning rotary valves for respectively product feed into and out off the pressure vessel.
The process is further identified by a sanitary fluid bed dryer/cooler, using sterile filtered air to bring the moisture content of the treated product accurately to the desired final moisture content.
Automatic cleaning in place (C.I.P.) provides for quick change from one product to another.

The total process takes only 30 seconds for sterilization plus 7 minutes for conditioning. With the continuous process the product will not be subjected to a temperature above 55 degree C, longer than 60 seconds.

The first multifunctional plant has been installed in the Netherlands in 1990. Continuous steam decontamination plants are in operation in Holland, Germany, Hungary, Poland, Bulgaria, USA, Brazil, India, Korea, Japan, Vietnam, Malaysia and China.

Basic scope of supply steam sterilizing plant

• Sterilizer, complete with support frame, platform and staircase
• Wet scrubber/ Cleaning in Place unit for sterilizer
• Fluid bed dryer/cooler
• Sterile air supply unit for fluid bed dryer/cooler
• Dust separator for exhaust air from fluid bed dryer/cooler
• Central control panel (PLC and suitable for data acquisition for HACCP)
• Instrumentation
• Spare parts for the first year of operation
• Supervision of erection and commissioning plus training of operators

Optional deliveries

• Pneumatic product feed to sterilizer using sterile air from filter unit
• Pneumatic product discharge from fluid bed dryer/cooler to packing room using sterile air from filter unit
• Finisher to turn agglomerates back into a free flowing powder

Capacities

• High temperature plants can be supplied in capacities ranging 500 - 3000 kg/h