SARUs). The heat generated during the regeneration process can be captured and used to preheat the incoming spent acid, reducing the overall energy consumption of the process.
Heat recovery in SARUs can be accomplished in several ways, depending on the specific unit and the process it is designed for. Some common methods include:
- Heat exchangers: Heat exchangers are commonly used in SARUs to transfer heat from the outgoing regenerated acid to the incoming spent acid. This can be done using shell-and-tube heat exchangers or plate heat exchangers.
- Waste heat boilers: In some cases, the heat generated during the regeneration process may be sufficient to generate steam, which can be used for other purposes such as heating or power generation. Waste heat boilers can be used to capture this steam and put it to use
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- Waste heat boilers: In some cases, the heat generated during the regeneration process may be sufficient to generate steam, which can be used for other purposes such as heating or power generation. Waste heat boilers can be used to capture this steam and put it to use.
- Recuperators: Recuperators are heat recovery devices that use a heat-conducting material, such as metal, to transfer heat from the outgoing regenerated acid to the incoming spent acid.
The use of heat recovery in SARUs can greatly improve the efficiency of the regeneration process, reducing energy consumption and costs. It also helps to minimize the impact of the regeneration process on the environment by reducing the amount of heat that must be dissipated.
