T/NBSES 003-2024 Active

Main technical content: During the process of start-up, shutdown, and maintenance, the process operation is in a non-normal state. Under these circumstances, the normal process that does not discharge gas may result in a large amount of waste gas emissions. If the large amount of VOCs emitted during the start-up and shutdown process is not controlled, it will cause a large amount of material waste and serious air pollution. Therefore, controlling the VOCs emissions during the start-up and shutdown and maintenance is an important link in controlling the overall VOCs emissions. This document proposes corresponding control measures for each stage of VOCs production and emission in chemical enterprises' production devices, such as shutdown preparation, material withdrawal, start-up and shutdown, and maintenance, and monitoring requirements for the start-up and shutdown and maintenance process. It provides technical support for the park to strengthen environmental management under abnormal working conditions and reduce odor nuisance to the public.