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Problem
The client (in the bulk chemical industry) operates and supplies
many plants for this crystallization process. As part of the client’s
continual drive to improve the process they required a more detailed
understanding of the current reactor operation and to know if there
was any potential for improvement.
Objective
Carry out a series of experimental studies to understand and optimize
the effect of different geometric parameters (impeller types and
positions, cooling coil locations and gas feed locations) and operational
conditions (power draw and gas flow rate) on a boiling gas-liquid
crystallization reactor.
Approach
The process was scaled down to operation in a 0.61m diameter H=3T
vessel. The current design and effect of modifications on the following
parameters were evaluated:
- Gas dispersion
- Gassed power
draw
- Liquid blending
- kLa
- Gas hold
up
- Heat transfer
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The Modelling
The process was
modeled by using air and water. Typical modifications studied included
the effects of:
- Impeller
types and positions
- Cooling coil
design
- Gas feed
positions
- Gas flow
rate
- Power input
Results
The results indicated that significant improvements to the process
were possible to improve gas dispersion, kLa and heat
transfer. Full details of the test results and analysis were provided
to the client with video footage of the test work.
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us for mroe details, or to discuss your case.
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