Continuous Flow Calorimeter for Reaction Kinetics
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Solution Overview
Problem
Existing calorimeters are unable to measure thermokinetic properties, such as heat of reaction, in a continuous manner during the progress of a reaction, especially in both adiabatic and isothermal conditions, and lack the capability to monitor reaction progress accurately.
Innovation Solution
A device comprising a data management system connected to a continuous flow and measurement section with thermally resistant connectors, temperature measurement devices, and a monitoring unit that allows for parallel flow of reaction and thermic fluids, enabling continuous measurement of reaction kinetics and heat of reaction in adiabatic and isothermal conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If batch mode calorimeters are used to measure heat of reaction, then measurement is possible at beginning and end of reaction, but sampling during reaction is not possible and continuous monitoring is not achieved
Solution Approach 1:
The calorimeter is divided into multiple measurement zones along the flow path, with temperature sensors positioned at different locations to capture thermal changes at various stages of the reaction process, enabling continuous monitoring while maintaining measurement precision
Solution Approach 2:
The system pre-establishes multiple sampling points and measurement positions before the reaction begins, allowing continuous data collection throughout the reaction process without interrupting the flow or requiring post-reaction analysis
2Temperature
If micro reactor based devices are used for thermokinetic measurement, then heat transfer area per unit volume is increased, but the device cannot track reaction progress continuously
Solution Approach 1:
The system transitions from point measurement to distributed spatial measurement along the flow direction, adding a temporal-dimens ion to the measurement process by capturing temperature profiles at multiple positions simultaneously, thus tracking reaction progress while maintaining efficient heat transfer
3Measurement precision
If adiabatic scanning calorimeter is used for temperature monitoring, then temperature dependence of heat capacity can be measured, but reaction monitoring capability is not available
Solution Approach 1:
The calorimeter is designed to perform multiple functions including temperature monitoring, reaction progress tracking, and thermokinetic parameter measurement by integrating flow capability, multiple sensor positions, and data processing systems that can analyze various types of thermal data from the same device
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables online, continuous monitoring and measurement of reaction kinetics and heat of reaction, providing accurate estimation of thermokinetic properties with high precision and versatility in various reaction conditions.
Implementation Method 1
a temperature measurement device (501)... The temperature measurement device (501) used is selected from thermocouples, thermometers or IR sensors
Implementation Method 2
the continuous flow sections for reaction mixture (304)... inlet for the thermic fluid (302), outlet for the thermic fluid (303)
Data Source
AI summary
A device which can be used as a flow reactor for synthesis and for discerning the reaction kinetics as well as a flow calorimeter is a need in the art. To fulfill this need, the invention discloses a simple calorimeter that functions as a device to measure reaction kinetics, preferably heat of reaction in a continuous manner, in adiabatic as well as in isothermal conditions. The distinct advantages of the device include online determination of thermokinetic properties, continuous determination of thermokinetic properties and applicable for determination in adiabatic as well as isothermal modes. The device may function independently or may be used in combination with reactors, micro reactors or tubular reactors.