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      Biogás como una fuente alternativa de energía primaria para el Estado de Jalisco, México Translated title: Biogas as an alternative source of primary energy for the Jalisco state, Mexico

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          Abstract

          Resumen En México como en muchos países en desarrollo se produce una gran cantidad de Residuos Sólidos Urbanos (RSU), mismos que podrían utilizarse para la generación de biogás. Por tanto, en el siguiente trabajo se presenta un análisis energético y económico para el aprovechamiento de la fracción metano contenida en el biogás, como energía primaria, proveniente de la descomposición orgánica de tres tipos de estiércoles (bovino, porcino y aviar) y de los RSU generados en todo el estado de Jalisco, esto, como una alternativa energética para la producción de energía eléctrica. Se consideraron costos de inversión para la construcción de biodigestores, de rellenos sanitarios y motogeneradores (MCI), así como la operación y mantenimiento de los mismos a lo largo de un proyecto a 21 años. Se realizó un análisis de valor presente neto acumulado y se estimó el tiempo de recuperación de la inversión sin y con bonos de carbono, para las doce regiones que comprenden Jalisco. Se observó que se obtiene mayor cantidad de energía eléctrica por parte de los biodigestores (16.977GWh) que de los rellenos sanitarios (4.373GWh), así como mayores beneficios económicos al término de la vida útil del proyecto $35,031x106 MN y $5,404 x106 MN, respectivamente.

          Translated abstract

          Abstract In Mexico as in many developing countries a large amount of Municipal Solid Waste (MSW) is produced, which could be used for the generation of biogas. Therefore, this study presents an energy and economic analysis for the use of the methane fraction contained in biogas, as primary energy, from the organic decomposition of three types of manure (bovine, porcine and avian) and MSW generated throughout the state of Jalisco, as an alternative for the production of electric energy. Investment costs were considered for the construction of biodigesters, landfills and internal combustion engines (ICE), as well as their operation and maintenance over a 21-year project. A cumulative net present value analysis was performed and the time of the recovery of the investment with and without carbon credits was estimated for the twelve regions that comprise Jalisco. Higher electricity generation is obtained from biodigesters (16.977GWh) than from landfills (4.373GWh), as well as greater economic benefits at the end of the project's lifetime 1,994x106 USD and 308 x106 USD, respectively.

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          Economic and environmental benefits of landfill gas from municipal solid waste in Malaysia

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            Mercury capture by native fly ash carbons in coal-fired power plants.

            The control of mercury in the air emissions from coal-fired power plants is an on-going challenge. The native unburned carbons in fly ash can capture varying amounts of Hg depending upon the temperature and composition of the flue gas at the air pollution control device, with Hg capture increasing with a decrease in temperature; the amount of carbon in the fly ash, with Hg capture increasing with an increase in carbon; and the form of the carbon and the consequent surface area of the carbon, with Hg capture increasing with an increase in surface area. The latter is influenced by the rank of the feed coal, with carbons derived from the combustion of low-rank coals having a greater surface area than carbons from bituminous- and anthracite-rank coals. The chemistry of the feed coal and the resulting composition of the flue gas enhances Hg capture by fly ash carbons. This is particularly evident in the correlation of feed coal Cl content to Hg oxidation to HgCl2, enhancing Hg capture. Acid gases, including HCl and H2SO4 and the combination of HCl and NO2, in the flue gas can enhance the oxidation of Hg. In this presentation, we discuss the transport of Hg through the boiler and pollution control systems, the mechanisms of Hg oxidation, and the parameters controlling Hg capture by coal-derived fly ash carbons.
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              Gas-phase transformations of mercury in coal-fired power plants

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                Author and article information

                Contributors
                Role: ND
                Role: ND
                Role: ND
                Role: ND
                Role: ND
                Role: ND
                Journal
                iit
                Ingeniería, investigación y tecnología
                Ing. invest. y tecnol.
                Facultad de Ingeniería, UNAM (México, DF, Mexico )
                1405-7743
                September 2017
                : 18
                : 3
                : 307-320
                Affiliations
                [2] orgnameUniversidad de la Ciénega del Estado de Michoacán de Ocampo Mexico mestrada@ 123456ucienegam.edu.mx
                [5] orgnameUniversidad Nacional Autónoma de México orgdiv1Laboratorio de Catálisis Centro de Física Aplicada y Tecnología Avanzada Mexico xicotillo@ 123456fata.unam.mx
                [6] orgnameUniversidad de la Ciénega del Estado de Michoacán de Ocampo Mexico aortiz@ 123456ucienegam.edu.mx
                [4] orgnameUniversidad de la Ciénega del Estado de Michoacán de Ocampo Mexico martin9301@ 123456live.com.mx
                [1] orgnameUniversidad de la Ciénega del Estado de Michoacán de Ocampo Mexico ivanverar@ 123456gmail.com
                [3] orgnameInstituto Politécnico Nacional orgdiv1Centro Interdisciplinario de Investigación para el Desarrollo Integral Regional. Mexico conrad4u@ 123456hotmail.com
                Article
                S1405-77432017000300307
                7ae7832f-94cd-4520-92e8-4369c850df1c

                This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

                History
                : July 2016
                : March 2017
                Page count
                Figures: 0, Tables: 0, Equations: 0, References: 24, Pages: 14
                Product

                SciELO Mexico


                energía renovable,Biogas,electricity,renewable energy,biogas-digesters,landfills,economic evaluation,carbon credits,Biogás,energía eléctrica,biodigestores,rellenos sanitarios,evaluación económica,bonos de carbono

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