Abstract: Vertical dome roof tanks and inner floating roof tanks are the most widely used oil storage tanks in petrochemical enterprises. Based on the factors affecting the emission of volatile organic compounds (VOCs) from the two types of tanks, and based on the "Guidelines for VOCs Pollution Source Investigation in the Petrochemical Industry", a tank VOCs emission reduction strategy covering "source emission reduction, process control, and end of pipe treatment" is proposed. Taking the VOCs control of a storage tank in a petrochemical company in Xinjiang as an example, corresponding VOCs control measures have been formulated and implemented based on the characteristics of the tank, including equipment and facility renovation and upgrading, monitoring and early warning, maintenance and management, and waste gas treatment. By comprehensively applying these measures, it is possible to effectively reduce VOCs emissions from storage tanks and protect the environment, but there are still some issues that need to be addressed. Finally, the study identified the next step in the governance plan, which aims to further reduce the sources of VOCs leakage from storage tanks, lower emissions, and ensure that emissions meet standards. This will continuously improve the environmental air quality and achieve sustainable development goals.

Key words: VOCs in storage tanks, source reduction, process control, end of pipe treatment, monitoring and early warning