Chemisens for R.C. and Process Analysis
IDEAL FOR STUDIES INVOLVING
- Process Optimization Adsorption kinetics
- Crystallisation
- Desorption
- Dissolution of tablets
- Heat of adsorption
- Mass transfer investigations Micellisation
- Copolymerization
- Hydrogenation
- Polymorphism Wetting of solids
- Biological processes
- CO2 Absorption
Reaction calorimeters are tools for analyzing chemical
processes. The major output from experiments in a reaction calorimeter is the
heat production rate, associated with the processes inside the reactor. The
heat production curve is then the base for the calculations of a number of
important parameters. The technique to measure and the way to calculate the
heat production rate is of utmost importance for the reliability of all related
calculations and considerations.
A reaction calorimeter enables users to perform thermal
and kinetic analysis of chemical processes in small scale equipment under
realistic process conditions. Typically measured parameters include: 
- Heat Flow
- Temperature
- pH
- Pressure
- Stirring speed
- Stirring power
- Reactant profiles
ChemiSens manufactures "True Heat Flow" reaction
calorimeters that are pre-calibrated, which means that each instrument presents
the heat production rate directly online. The result is absolute; it is never
influenced by any doubt from the operator as to how to interpret calibration
pulses or how to estimate unknown baselines.
ChemiSens reaction calorimeters are designed and built as
complete Chemical Process Analyzers (CPA) offering users some significant
benefits:
- No Calibration Required
- On-line Kinetics (up to 50 parameters logged every 2
seconds)
- Measure "True Heat Flow"
- Controlled Dosing
- Easy Loading of Solids (and Powders)
The heart of each CPA system is a versatile reactor. The
standard reactor can be operated from vacuum to 20 bar (290 psi) and -50°C
to 200°C, with power resolution to 10 mW and double glass sidewalls so the
reaction mixture can be directly observed. Reactor volume is 250 ml, with a
usable (and continuously variable) volume from 10 to 180 ml. For high-pressure
applications, an all-metal reactor is available which allows control to 100 bar
(1450 psi) and 250°C, with a sealed magnetic stirrer drive to ensure
leak-free operation.
ChemiSens reaction calorimeters are designed and built as
complete Chemical Process Analyzers (CPA) offering users some significant
benefits:
ChemiSens reaction calorimeters are designed and built as
complete Chemical Process Analyzers (CPA) offering users some significant
benefits:
| Accumulated reactants |
Adiabatic temperature rise |
| Highest reaction temperature |
Heat capacity |
| Required cooling power |
Heat of reaction / Thermal conversion
profile |
| Enthalpy of reaction |
Max heat rate |
| Adiabatic temp of the reaction
batch |
Thermal accumulation at the end of
dosing |
Select any of the links below for more specific product
and application information:
| CPA 202
Reaction Calorimeter |
ChemiSens
Application Examples |
| CPA 122
Reaction Calorimeter |
ChemiSens
Newsletters |
| CPA 102 Reaction Calorimeter |
"Fauske
& Associates, LLC Brings ChemiSens to North America," James P.
Burelbach, Ph.D (taken from the Spring, 2008 issue of FAI's Process Safety
Newsletter) |
| MSC202 Syringe Dosing Pump |
|
| VRC202 - The Universal Dosing Controller |
"Online Reaction Calorimetry Optimization of Safety
Parameters," Patrizia Lamanna, Holger Nilsson and Pierre Reuse |
| ChemiSens Reaction Calorimeter Systems Brochure |
"Isothermal
Reaction Calorimetry as a Tool for Kinetic Analysis, " Andreas Zogg, Francis
Stoessel, Ulrich Fisher, Konrad Hungerbuhler |
For further information and prices, please
click here.
Please also visit the Chemisens Website for further
information:
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