What factor must be considered when selecting materials for the construction of a flue gas scrubber system?

When selecting materials for the construction of a flue gas scrubber system, it is crucial to consider low pH conditions and abrasion. Flue gas scrubbers are designed to remove pollutants from industrial emissions, which often results in acidic conditions due to the presence of acidic gases such as sulfur dioxide and hydrochloric acid. Materials used in such systems must withstand these low pH environments, preventing degradation and ensuring the system's longevity and effectiveness.

Additionally, the process can involve particulate matter or other abrasive materials. If the materials do not possess adequate resistance to abrasion, they could wear down quickly, leading to increased maintenance costs, frequent replacements, and potential failures in the scrubber system's operation. Therefore, ensuring that the materials can handle both low pH conditions and abrasive elements is essential for maintaining the integrity and efficiency of the scrubber.