Characteristics of volatile organic compounds under different operating conditions in a petrochemical industrial zone and their effects on ozone formation.

Item request has been placed! ×
Item request cannot be made. ×
loading   Processing Request
Read More Add to Saved list
  • Additional Information
    • Source:
      Publisher: Elsevier Applied Science Publishers Country of Publication: England NLM ID: 8804476 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1873-6424 (Electronic) Linking ISSN: 02697491 NLM ISO Abbreviation: Environ Pollut Subsets: MEDLINE
    • Publication Information:
      Original Publication: Barking, Essex, England : Elsevier Applied Science Publishers, c1987-
    • Subject Terms:
      Volatile Organic Compounds*/analysis ; Ozone*/analysis ; Environmental Monitoring*/methods ; Air Pollutants*/analysis; China ; Oil and Gas Industry ; Air Pollution/statistics & numerical data
    • Abstract:
      The petrochemical industry is one of the major sources of volatile organic compounds (VOCs) emissions. Current research on VOC pollution characteristics in petrochemical industrial areas predominantly focuses on normal operating conditions, overlooking VOC pollution during overhaul. This study comparatively analyzes the pollution characteristics of VOCs, the potential sensitivity of O 3 formation, and the pollution sources during normal production (PI), partial instrument overhaul (PII), and large-scale instrument overhaul (PIII) at a typical petrochemical industrial enterprise A (PEA) in Northwest China. The results revealed that with the overhaul of the petrochemical industrial enterprise, the average concentration of VOCs decreased from 70.43 ppbv during the PI period to 27.94 ppbv during the PIII period, in which the concentration of alkanes decreased by 67.99% but the concentration of aromatic hydrocarbons increased by 7.0%. The ozone formation potentials (OFPs) of the three periods were 249.28, 212.57 and 114.23 ppbv, respectively. During PI, alkanes contributed the largest share (44.23%) to the OFP, and the OFP of OVOCs was the largest during PII and PIII, with shares of 34.77% and 42.07%, respectively. During PI, O 3 formation was limited by anthropogenic volatile organic compounds (AVOCs). During PIII, O 3 formation tended to be synergistically limited by VOCs and NO x . In PI, fuel evaporation (29.34%) and combustion sources (26.94%) made substantial contributions to VOC concentrations. However, owing to overhaul, the contribution from combustion sources decreased from 26.94% in PI to 8.54% in PII, whereas the contribution from solvent usage increased from 6.66% in PI to 11.86% in PII. In PIII, fuel evaporation (24.18%) and solvent usage sources (24.25%) significantly influenced VOC concentrations. This study can provide a reference for the control of VOCs pollution in the petrochemical industry during different production periods and is crucial for O 3 control strategy development.
      Competing Interests: Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.
      (Copyright © 2024 Elsevier Ltd. All rights reserved.)
    • Contributed Indexing:
      Keywords: Overhaul; Ozone; Petrochemical industry; Pollution characterization; Volatile organic compounds
    • Accession Number:
      0 (Volatile Organic Compounds)
      66H7ZZK23N (Ozone)
      0 (Air Pollutants)
    • Publication Date:
      Date Created: 20241107 Date Completed: 20241127 Latest Revision: 20241127
    • Publication Date:
      20241202
    • Accession Number:
      10.1016/j.envpol.2024.125254
    • Accession Number:
      39510299