VOCs control in China is currently at a critical stage of policy intensification and precision regulation. At the national level, a comprehensive control system covering the whole chain has been established through amendments to the Environmental Protection Tax Law of the People’s Republic of China and the issuance of the Volatile Organic Compounds (VOCs) Comprehensive Governance Plan for Key Industries and the Regulation on Ecological Environment Monitoring, imposing stringent constraints on the petroleum and chemical industries. To meet these regulatory requirements and address the environmental and safety challenges posed by VOCs emissions from transfer station tank farms in heavy oil thermal recovery blocks, this study systematically investigates VOCs emission monitoring, comparative evaluation of control strategies, and process optimization based on field operational conditions. An endof- pipe treatment approach is selected, employing a combined process of degassing, desulfurization, and catalytic oxidation (CO). Key engineering implementation challenges are resolved through on-site application, validating the efficiency and adaptability of the technology. This study provides an engineering-feasible solution for the promotion and application of VOCs control in heavy oil thermal recovery blocks, offering significant practical value for advancing green transformation in oilfields and achieving compliance with national environmental tax and total emission reduction targets.
Liu et al. (Thu,) studied this question.