Environmental assessment of a combined heat and power plant configuration proposal with post-combustion CO2 capture for the Mexican oil and gas industry
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 626kgCO(2eq)/MWh for case 1 and 460kgCO(2e)/MWh for case 2. In case 3, the GWP of 42kg CO2e/MWh was estimated, 1075t/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.
1.Colegio Puebla AC, Direcc Acad, Calle Tehuacan Sur 91, Puebla 72160, Puebla, Mexico 2.Benemerita Univ Autonoma Puebla, Fac Ingn Quim, Av Sn Claudio & 18 Sur, Puebla 72570, Puebla, Mexico 3.Univ Autonoma Metropolitana Azcapotzalco, Dept Ciencias Basicas, Av San Pablo 180, Mexico City 02200, DF, Mexico 4.Univ Autonoma Metropolitana Xochimilco, Dept Sistemas Biol, Calzada Hueso 1100, Mexico City 04960, DF, Mexico 5.Univ Papaloapan, Inst Biotecnol, Circuito Cent 200,Col Parque Ind, Tuxtepec 68301, Oaxaca, Mexico
Recommended Citation:
Morales-Mora, M. A.,Pretelin-Vergara, C. F.,Martinez-Delgadillo, S. A.,et al. Environmental assessment of a combined heat and power plant configuration proposal with post-combustion CO2 capture for the Mexican oil and gas industry[J]. CLEAN TECHNOLOGIES AND ENVIRONMENTAL POLICY,2019-01-01,21(1):213-226