 | Applied investigations
ChemInform Saint Petersburg (CISP) Ltd. has more than 25 years of experience in investigation of various industrial chemical processes and assessment of their thermal hazards. ChemInform engineers and scientists are uniquely capable of implementing a wide range of experimental and kinetic study of processes, reactors simulation, reaction hazard laboratory testing and runaway modeling using state-of the-art methodology of experiment and mathematical simulation. Therefore we can serve you to perform various types of applied investigation.  | Study of chemical processes includes: |  |
- homogeneous (liquid or gas);
- heterogeneous (gas-solid, liquid-liquid);
using the following laboratory kinetic reactors: - stirred tank reactors, operating in batch, semi-batch or continuous mode;
- plug flow reactors;
- fixed bed reactors;
- the unique pulse flow reactor;
accompanied by the set of analytical instruments - chromatography of various kinds, spectroscopy, calorimetry. The obtained experimental data are subject of comprehensive mathematical treatment, which includes: - parameter kinetic estimation;
- modeling of chemical processes;
- reactor optimization.
| Calorimetric investigations include: | |
- reactions in solid and liquid chemicals (thermal decomposition, polymerization, ...);
- interaction between liquid reactants;
- measurement of specific heat of solids and liquids;
- determination of phase transition parameters in solids;
- measurement of thermal conductivity of liquids;
using the problem-oriented thermoanalytical laboratory equipped by |
- differential scanning calorimeter DSC 111 and combined DSC and thermogravimetry DSC-TG 111 "Setaram";
- heat flux micro calorimeters C-80 "Setaram".
Calorimetric data are used then for creation of kinetic models, reaction hazard assessment, prediction of thermal stability of a product, determining critical conditions of thermal explosion. | Data processing services include: | |
- initial processing of thermoanalytical data (DSC, TG, DTA, isothermal and heat flux calorimetry, reaction calorimetry, combined methods DSC+TG, ...);
- initial processing adiabatic data (ARC, VSP, Phi-tech, DEWAR, etc.);
- creation of kinetic models of chemical reactions based on various calorimetric data and data on variation of reactants concentrations;
- reactors simulation and optimization based on reaction kinetics and reactor model;
- reaction hazards assessment based on reaction kinetics (runaway simulation and vent sizing, critical conditions of thermal explosion, analysis of thermal stability of products, etc.).
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