Scale up heat transfer based on reaction calorimetry
Chemical reactions are often accompanied by significant heat release, and must therefore be thoroughly understood if they are to be managed successfully on a plant scale. The relatively large heat losses from laboratory-scale apparatus make it difficult (or impossible) to quantify the rate of heat release associated with the chemistry being carried out. The advent of computer-controlled, laboratory-scale calorimeters has provided a useful tool for measuring heat flows accurately (to about 0.1 W/L) with a high degree of reproducibility. Combining the calorimetric data with kinetic analysis allows the engineers to construct predictive heat flow models that are applicable to vessels of any volume. This article demonstrates the power of calorimetry as it relates to process design and scale-up of batch and semibatch processes. It outlines the required methodology of such an analysis, including experimental considerations, development of heat flow models, and subsequent simulations of large-scale plant vessels, ultimately leading to achievable and safe operating conditions.
- OSTI ID:
- 7092649
- Journal Information:
- Chemical Engineering Progress; (United States), Journal Name: Chemical Engineering Progress; (United States) Vol. 90:11; ISSN 0360-7275; ISSN CEPRA8
- Country of Publication:
- United States
- Language:
- English
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ACCURACY
BENCH-SCALE EXPERIMENTS
CALORIMETERS
CHEMICAL ENGINEERING
CHEMICAL PLANTS
COMPUTERIZED CONTROL SYSTEMS
CONTROL SYSTEMS
ENERGY LOSSES
ENERGY TRANSFER
ENGINEERING
HEAT LOSSES
HEAT TRANSFER
INDUSTRIAL PLANTS
LOSSES
MEASURING INSTRUMENTS
ON-LINE CONTROL SYSTEMS
ON-LINE SYSTEMS
PERFORMANCE
SAFETY ENGINEERING