【摘 要】
：
Kinetics and thermodynamics of chemical reactions are crucial features for process development and process safety.Due to the proportionality of heat release
【机 构】
：
DepartmentofBiochemicalandChemicalEngineering,LaboratoryofEquipmentDesign,TUDortmund,Emil-Figge-Str.
【出 处】
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The 14th International Conference on Microreactivity Technol
论文部分内容阅读
Kinetics and thermodynamics of chemical reactions are crucial features for process development and process safety.Due to the proportionality of heat release rate to reaction rate,measuring heat flux allows for immediate determination of reaction rate data and further key process information.Positioning small Seebeck elements beneath the reaction channel,which generate an electrical power in dependence of the heat flux through the elements,results in high spatial and temporal resolution.These thermoelectric generators(TEG)have high sensitivity and allow for quantification of heat of reaction.Consequently,impact of process parameters such as concentration of the reactants,stoichiometry and reaction temperature can directly be investigated.In combination with small time constants in microreactors a real time determination of the heat release rate can be accomplished.Additionally,high specific surfaces of micro components intensify heat transfer favouring isothermal reaction conditions,and even fast and highly exothermic reactions can be investigated.Worst case scenarios for hazardous reactions can safely be carried out.Taking these advantages into account,calorimetry using thermopiles and micro reaction technology combine for a powerful connection.
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