Abstract
Over the past few decades, industrial development has caused a dramatic increment in greenhouse gas (GHG) emissions, as a leading cause of climate change. Modifying the industrial plants' environmental performance is the main pillar of improving efficiency that can reduce the waste of resources and make achieving lower-cost global emission reduction targets of the Kyoto protocol's clean development mechanism (CDM) possible. Considering the essentiality of knowledge-based research in increasing the awareness of policymakers by providing better access to accurate and reliable information, an analytical survey on efficiency in oil, gas, and petrochemical industries has been conducted by applying data envelopment analysis (DEA). For this purpose, comprehensive evaluations were elaborated on monthly data for Zagros Petrochemical Company (ZPC), from 2011 to 2017, as a case study. The CO2 equivalent emissions of fuel combustion in the petrochemical plant's furnaces were calculated according to standard guidelines for calculation and reporting GHG to be used for environmental efficiency estimations. The data envelopment analysis program (DEAP) was applied to estimate efficiencies through the data envelopment analysis-materials balance principle (DEA-MBP) approach, which is a robust approach employed in this study to provide practical solutions to both economic and environmental concerns. Since DEA-MBP is based on the materials balance principle and incorporates by-products, it can reliably explain the best relationship between product quantities, carbon emissions, and external costs. The outcomes revealed that the lower heating value of natural gas and CO2 emission factor and CO2 equivalent emissions were 32.87 × 10–3 GJ/Sm3, 55.73 × 10–3 ton/GJ, and 2,376,449 tons, respectively. DEAP analysis also exhibited the technical, environmental, and environmental allocative efficiency scores as 0.976, 0.861, and 0.881, respectively, and estimated distances to efficiency frontiers were 0.024, 0.139, and 0.119, respectively. Ultimately, the carbon prices were found to be about US$83,175,715 and US$71,531,110 under two scenarios (A and B).
Article Highlights
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Environmental efficiency improvement is the main pillar that leads to achieving lower-cost global emission reduction targets.
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A significant drop of greenhouse gas emissions can be anticipated as a consequence of efficiency improvement.
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Improving the environmental efficiency reduces the carbon price.
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Data Envelopment Analysis specifies in what possible ways corporations can allocate the limited resources to improve production, successfully.
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Notes
Charnes, Cooper, and Rhodes -1978.
Banker, Charnes, Cooper -1984.
Electricity, received steam in the startup phase, desalinated water, demineralized water, seawater, nitrogen, oxygen, instrument air, service air, feed gas and fuel.
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The authors would like to thank the Zagros Petrochemical Company (ZPC) professional team for providing the data and valuable consultants to this research.
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Keivani, E., Abbaspour, M., Abedi, Z. et al. Promotion of Low-Carbon Economy through Efficiency Analysis: A Case Study of a Petrochemical Plant. Int J Environ Res 15, 45–55 (2021). https://doi.org/10.1007/s41742-020-00282-1
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DOI: https://doi.org/10.1007/s41742-020-00282-1