Netzsch - APTAC 264

Manufactured by  Netzsch
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Automatic Pressure Tracking Adiabatic Calorimeter Accelerating Rate Calorimetry

APTAC® 264 takes the testing of chemical reactivity a step forward by enabling the user to acquire much faster temperature and pressure rise data than did the earlier designs.   
The instrument can function as:   
  • High-performance closed-cell adiabatic calorimeter   
  • High-temperature and high-pressure reaction calorimeter   
  • Open test cell from which effluent can be discharged and analyzed for emergency relief system studies using the DIERS methodology of the American Institute of Chemical Engineers   
    The precision and accuracy of APTAC® 264 test results help companies in scaling up process designs to production scale by:   
  • Providing actual temperature and pressure data for use in kinetic modeling   
  • Validating predicted chemical reactions and scenarios   
  • Confirming predicted events following the activation of an emergency relief system   
  • Directly measuring physical property data of complex mixtures   
    APTAC® 264 can be used for the thermal analysis of solid or liquid chemicals or for gas/liquid, liquid/liquid, gas/solid, and liquid/solid mixtures. It can also be used for process simulation of batch and semi-batch reactions, fire exposures, emergency relief venting, and physical properties measurement.
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    General Specifications
    Sample Volume5 to 100 ml
    Maximum Temperature500 °C
    Temperature Resolution0.025 °C
    Additional Specifications

    Test cell (standard): 130ml capacity, 2.5”    
    internal dia., 0.5” stem   
    Temperature measurement:    
    type N thermocouples with 16-bit sampling giving 0.025°C resolution   
    Exotherm detection sensitivity:   
    0.002 K/min in Iso-Fixed mode; 0.02 K/min in HWS   
    Operation pressure range:   
    vacuum to 140 bar (2,000 psia)   
    Pressure measurement:   
    ±0.1% full scale   
    Pressure tracking:    
    typically up to 700 bar/min (10,000 psia/min)   
    Pressure control:   
    PI control of pneumatic flow valves   
    Stirring, injection, and vent capability standard   
    ASTM standard:    
    Single-headed vessel rated at 140 bar (2,000 psia)   
    Thermal inertia (Φ) factor: variable - typically ~ 1.10   
    Tracking rate at adiabatic operation up to 400 K/min

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