What should be done in case of an accident with an ammonia absorption system?

In the event of an accident involving an ammonia absorption system, shutting off the steam to the generator is crucial because it helps prevent further escalation of the incident. The steam serves as the heat source that drives the absorption process in the system. By cutting off the steam, you effectively reduce the thermal energy available to the system, which can mitigate potential hazards such as overheating or pressure build-ups. Managing these parameters is vital in maintaining safety and preventing damage or hazardous leaks associated with ammonia, which can be a toxic and harmful substance.

Maintaining control over the system under emergency conditions is essential, and shutting down steam flow is a proactive approach to managing the situation. Other actions, while they may seem relevant, do not address the immediate risk in the same direct manner as stopping the steam supply.