When is the best time to purge an ammonia plant with 250 lbs. of ammonia?

Purging an ammonia plant should be conducted during operation to ensure that any residual gases are effectively removed and that the system can be properly ventilated while still maintaining pressure. During operation, the systems are designed to manage the flow of ammonia, allowing for efficient and controlled purging. This method also helps in maintaining safety and system integrity by ensuring that any potential leaks or hazardous situations can be managed promptly with the operational safety measures in place.

Undertaking purging during a shut-down or when not in use may leave the system vulnerable and could lead to dangerous build-ups of ammonia. Additionally, purging while charging the plant may disrupt the operational process and could increase the risk of exposure to ammonia, which is hazardous. Thus, conducting the purging process during operation is the safest and most effective time to eliminate unwanted gases while maintaining system functionality.