Environmental assessment of a combined heat and power plant configuration proposal with post-combustion CO2 capture for the Mexican oil and gas industry
| Autor: | Cirilo Nolasco-Hipolito, C. Iuga, S. A. Martínez-Delgadillo, C. F. Pretelìn-Vergara, M. A. Morales-Mora |
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| Rok vydání: | 2018 |
| Předmět: |
Economics and Econometrics
Flue gas Work (thermodynamics) Environmental Engineering Waste management Power station business.industry 020209 energy 02 engineering and technology 010501 environmental sciences Management Monitoring Policy and Law 01 natural sciences General Business Management and Accounting Petrochemical Petroleum industry Heat recovery steam generator 0202 electrical engineering electronic engineering information engineering Environmental Chemistry Environmental science business Life-cycle assessment 0105 earth and related environmental sciences Efficient energy use |
| Zdroj: | Clean Technologies and Environmental Policy. 21:213-226 |
| ISSN: | 1618-9558 1618-954X |
| DOI: | 10.1007/s10098-018-1630-3 |
| Popis: | Combined heat and power (CHP) plants retrofitted with post-combustion carbon capture (PCC) are discussed for the Mexican oil and gas industry using a life cycle assessment. This work investigates the energy efficiency improvements and potential environmental impacts generated by a 144-MW CHP plant coupled with PCC in a petrochemical complex. The project considers a change from the current steam-turbine generators (case 1), with an efficiency of 58%, to a gas turbine (case 2) coupled to a heat recovery steam generator to reach a combined efficiency of 87%. We also investigated the PCC of flue gas from the gas turbine in case 2 by chemical absorption using Aspen HYSYS (case 3). The results showed that case 2 leads to a reduction in all evaluated categories of environmental impact when compared to the base case (case 1). The average global warming potential (GWP) is 626 kgCO2eq/MWh for case 1 and 460 kgCO2e/MWh for case 2. In case 3, the GWP of 42 kg CO2e/MWh was estimated, 1075 t/day of CO2 can be captured with a recovery efficiency of approximately 95%, and an energy return of 85% can be obtained. This study provides a new approach for obtaining maximum energy flux with low-carbon emissions, constituting “clean energy” production. |
| Databáze: | OpenAIRE |
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