T/NBSES 007-2024 Guidance for emergency discharge and air pollution control of bypass facilities in chemical process safety

Scope

Main technical content: In petrochemical and chemical enterprises, emergency relief and bypass facilities are important safety protection measures. However, these facilities may also become significant sources of volatile organic compounds (VOCs) emissions during operation, causing air pollution. During the emergency relief process, VOC-containing gases may be directly discharged into the atmosphere through safety valves, relief valves, or rupture discs. Although the frequency of occurrence is relatively low, the single discharge volume may be very large, causing significant environmental impacts. Bypass facilities are not equipped with effective VOC control devices, and untreated process gases may be directly discharged into the atmosphere. This standard provides technical support for the safety of chemical process emergency relief and the air pollution problem of bypass facilities.

Development Information

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