One-tower desulfurization and regeneration tower process
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At present, the gas purification and desulfurization unit uses a single-tower gas desulfurization process, which requires less space and lower investment. However, compared to high-tower regeneration methods, some companies do not include a solution heat exchange system for the desulfurization liquid during design. Is this due to design optimization or some other reason? Does anyone know?
Advantages and disadvantages of the single-tower desulfurization design； High power consumption; insufficient amount of regenerated air. The advantages are low space requirement and low investment.
Desulfurization systems designed too early did not pay enough attention to issues such as rising temperatures of the desulfurization fluid and its swelling; they might not have included coolers for this fluid, and in most cases such coolers were added through technical upgrades. Systems designed later on certainly do include them.