Review on Source Profiles of Volatile Organic Compounds (VOCs) in Typical Industries in China

Abstract

The source profile of volatile organic compounds (VOCs) is essential for establishing reactivity- and toxicity-based emission inventories and developing effective air pollution control strategies. In this paper, the establishment of VOC source profiles and the VOC emission characteristics are reviewed in the petrochemical, solvent use, and chemical industries, and the most up-to-date profiles of the three industries in China are compiled via necessary adjustment and reconstruction of the test data from the literature. Alkanes dominated and OVOCs were often neglected in the overall petrochemical industry and refined processes. They accounted for 60.6% and 3.2% in the merged profiles. Aromatics and OVOCs dominated in the industrial solvent use industry. OVOCs were the most prevalent in the printing and dyeing industries, furniture manufacturing industries, and automobile coating process, whereas aromatics were major contributors of the total VOCs in metal surface coating, shipping coating, and other surface coating industries in the merged profiles. A wide range of products and limited profile studies were obtained in chemical industry, and the compositions of VOCs varied significantly in the production of 30 products in the merged profile. The future research directions of VOC source profiles are discussed, mainly focusing on the sampling, establishment, and evaluation of VOC profiles.

Emission Factors and Source Profiles of Volatile Organic Compounds in the Petroleum Refining Industry through On-Site Measurement from Multiple Refineries

“…Alkanes were dominant in all profiles, with values ranging from 34.59% to 80.09%, followed by OVOCs and aromatics. It is worth mentioning that OVOCs were neglected in early VOC profiles due to the limitation of sampling and analysis methods . Nineteen species of OVOCs were detected in this study, accounting for 4.29–24.75% of the total VOCs in all samples.…”

Monitoring Method of VOCs Based on PID in Soil-water-gas Environment

“…This leads to varying detection accuracies of different gases by the PID. Hence, in practical VOC monitoring processes, the concentration of the actual monitored VOC gas needs to be multiplied by the corresponding response coefficient (RF) to obtain the respective VOC concentration, which can be determined by formula (2).…”

“…As far as possible, please keep the introduction comprehensible to scientists outside your particular field of research. References should be numbered in order of appearance and indicated by a numeral or numerals in square brackets-e.g., [1] or [2,3], or [4][5][6]. See the end of the document for further details on references.…”