Figure 1 shows a generic system that includes secondary and tertiary heat exchangers, where the primary heat exchanger is an integral part of the oxidizer. When looking at the potential for secondary and tertiary heat recovery systems, potential users should first confirm that process and pollution control system energy demands are met. Only when they are satisfied is it appropriate to investigate alternative energy recovery projects. Optimal process design only can be achieved by understanding multiple equipment variables and the interrelationships between process heating and oxidation systems. Clearly, oven or dryer design affects emission control design and operation.
Optimal solutions balance the competing needs of all variables and keep the total process in mind.
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