Why isn’t the main fan in catalytic cracking driven by a turbine?
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The turbine can also change its speed, which makes it convenient to adjust the air volume
It can also be called a turbine, only it is driven by flue gas, and the excess energy can be used to generate electricity.
It can also be called a turbine, only it is driven by flue gas, and the excess energy can be used to generate electricity.
Catalytic devices that are not connected to a smoke extractor can also be driven by steam turbines, or by electric power; there are also reciprocating types. Since the design of each device varies, it’s not possible to make generalizations.
The main consideration is that if there is enough flue gas, it can be used for grid-powered electricity generation.
It can definitely be driven by a turbine; many such systems exist abroad, where the main fans are driven separately by motors and turbines, without the use of auxiliary fans, with the flue gas turbines generating electricity directly. In China, due to speed control constraints, a three-unit configuration is generally chosen