On the issue of scaling and cleaning in horizontal reboilers
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I would like to ask: in the refining industry, when horizontal siphon reboilers are used, from the information I’ve found the process fluid flows on the shell side. Wouldn’t this pose a problem in terms of difficulty in cleaning the structure? How was that all handled?
When horizontal siphon reboilers used in the refining industry become fouled, the following cleaning methods are generally employed: 1. Chemical cleaning: Heated cleaning solution is circulated to break the bond between the scale layer and the surface of the equipment, after which the scale particles are dissolved or dispersed in the cleaning solution. This method can be carried out without disassembling the equipment. 2. Mechanical cleaning: This involves using specialized cleaning tools, such as high-pressure water jets and scraping devices, to directly remove scale. 3. Steam cleaning: Utilizes the physical effects of high-temperature steam to remove scale, but the effectiveness may be limited. In most cases, a combination of chemical and mechanical cleaning methods is more effective. Preventive measures are also taken during design and operation, such as using anti-scaling coatings and optimizing operating conditions and flow rates to reduce scaling. .
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