Abstract
The emission of the traditional energy chemical industry accounts for 20% of the total manmade VOC emission in China, of which coal chemical and petrochemical plants are one of the most important VOC emission sources. VOC emission sources mainly include the leakage of oil refinery units and equipment, pipes and valves, respiration and leakage of various types of storage tanks, effusion of oils during loading and unloading, effusion of sewage treatment systems, all kinds of process tail gas, etc. In this paper, the current management status of VOC emission in China’s coal chemical industry and petrochemical industry are analyzed, which divides VOC management into intentional and fugitive emission. The Leak Detection and Repair (LDAR) management method and technology for equipment, pipes and valves implemented in the United States are studied to propose self-inspection management methods and measures for VOC emissions in the energy chemical industry, providing strategies and recommendations for energy conservation, emission reduction and cleaner production in the traditional energy chemical industry.
Highlights
With the rapid economic development, China’s energy demand grows rapidly, posing a great challenge to energy supply and environmental ecology
The emission of the traditional energy chemical industry accounts for 20% of the total man-made volatile organic compounds (VOCs) emission in China, of which coal chemical and petrochemical plants are one of the most important VOC emission sources
The Leak Detection and Repair (LDAR) management method and technology for equipment, pipes and valves implemented in the United States are studied to propose self-inspection management methods and measures for VOC emissions in the energy chemical industry, providing strategies and recommendations for energy conservation, emission reduction and cleaner production in the traditional energy chemical industry
Summary
With the rapid economic development, China’s energy demand grows rapidly, posing a great challenge to energy supply and environmental ecology. The Ministry of Environment protection of the People’s Republic of China has published VOC emission standards for 14 industries, including petroleum refining, petrochemicals, coal chemical industry, dry cleaning industry, electronic industry, textile printing and dyeing, printing and packaging, pesticides, pharmaceuticals, coatings, wood-based panels, tank pipes, painting and casting [11] [12] [13]. It is accelerating the research and development of VOC emission charging methods and measures. It can be seen that the implementation of the plant-wide self-inspection on VOCs will greatly help factories and enterprises discover potential safety hazards in advance, improve process safety and reliability, detect equipment leakage in advance, reduce maintenance costs, optimize quality management of equipment suppliers, and guide equipment selection, reduce the risk of exposure to hazardous chemicals [15], reduce air pollution, achieve clean production [16], reduce raw materials and product losses and increase economic benefits
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