This Zoom course provides a practical overview of the operation, common challenges, and troubleshooting of Molecular Sieve Dehydration Units used in gas processing applications. The session will review the fundamentals of molecular sieve dehydration, including adsorption and regeneration cycles, while focusing on the operational issues that can lead to reduced unit performance, premature sieve degradation, and failure to meet gas moisture specifications. Participants will learn how to recognize and troubleshoot common problems such as liquid and hydrocarbon contamination, channeling, pressure drop increases, temperature profile abnormalities, regeneration issues, valve leakage, adsorbent degradation, and insufficient dehydration capacity. The course will also discuss practical methods for evaluating unit performance, identifying potential root causes, improving operating reliability, and extending molecular sieve bed life.