Impact of agricultural-based biofuel production on greenhouse gas emissions from land-use change: Key modelling choices

Panichelli, Luis; Gnansounou, Edgard

doi:10.1016/j.rser.2014.10.026

Cited by 42 publications

(20 citation statements)

References 99 publications

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“…There is a strong interest in including the LUC emissions into policy making and targets (Panichelli and Gnansounou 2014). Some models do estimate ILUC emissions, usually based on equilibrium models that try to address three questions: (i) how much of land is required for biofuel production, (ii) what land types will be converted, and as a result (iii) how much carbon will be released.…”

Section: State Of the Art In Land-use Change Associated With Bioenergymentioning

confidence: 99%

“…Some models do estimate ILUC emissions, usually based on equilibrium models that try to address three questions: (i) how much of land is required for biofuel production, (ii) what land types will be converted, and as a result (iii) how much carbon will be released. Attempts to address these questions are subject to considerable uncertainty (Palmer and Owens 2015), and even if the existing models have been improved, there is still a need for a harmonised reporting (Panichelli and Gnansounou 2014). ILUC can be mitigated through consumption limitation and/or financial support (Tokgoz and Laborde 2014).…”

Section: State Of the Art In Land-use Change Associated With Bioenergymentioning

confidence: 99%

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Impact of including land-use change emissions from biofuels on meeting GHG emissions reduction targets: the example of Ireland

Czyrnek-Delêtre

Chiodi

Murphy

et al. 2016

Clean Techn Environ Policy

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The greenhouse gases (GHG) emissions from land-use change are of particular concern for land-based biofuels. Emissions avoided by substituting fossil fuels with biofuels may be offset by emissions from direct and indirect land-use changes (LUC). There is an urgent need to investigate what impact land-use change emissions may have on the expansion of bioenergy and biofuels, in the context of EU mitigation policies. This paper focuses on Ireland, which faces a number of challenges in delivering its renewable energy and GHG reduction targets. The Irish TIMES energy systems model was used to assess the impact of a range of land-use change emissions' levels on the evolution of Ireland's low-carbon energy system. A reference scenario was developed where LUC is ignored and Ireland achieves a least-cost low-carbon energy system by 2050. If high indirect land-use change (ILUC) emissions are included, this results in a decrease by 30 % in bioenergy and a 68 % increase in marginal abatement costs by 2050. Hydrogen is used instead of bioenergy in the freight sector in this scenario, while private cars are fuelled by renewable electricity. If GHG emissions from ILUC were considered less severe, indigenous grass biomethane becomes the key biofuel representing 31 % of total bioenergy consumption. This is in line with recent research in Ireland of the key role that grass biomethane can play.

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Section: State Of the Art In Land-use Change Associated With Bioenergymentioning

confidence: 99%

Section: State Of the Art In Land-use Change Associated With Bioenergymentioning

confidence: 99%

Impact of including land-use change emissions from biofuels on meeting GHG emissions reduction targets: the example of Ireland

Czyrnek-Delêtre

Chiodi

Murphy

et al. 2016

Clean Techn Environ Policy

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“…If the demand for those other products persists, bioenergy production may lead to indirect land use change (iLUC) where land in some other parts of the world may be converted to meet the demand for those products (e.g. Searchinger et al 2009Searchinger et al , 2015Palmer and Owens 2015;Panichelli and Gnansounou 2015;de Rosa et al 2016). Indirect land use change can only be quantified through models, but different models have given a wide range of estimates (e.g.…”

Section: Introductionmentioning

confidence: 99%

Assessing the merits of bioenergy by estimating marginal climate-change impacts

Kirschbaum

2016

Int J Life Cycle Assess

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Purpose Climate-change impacts can be mitigated through greater use of bioenergy, but the extent to which specific options actually reduce overall impacts needs to be assessed. Most bioenergy assessments have used proxy measures for assessing its merits. Here, a new approach is presented, whereby the contribution of bioenergy use is assessed through quantifying marginal changes in climate-change impacts that result from the implementation of a bioenergy option. Methods Marginal climate-change impacts were calculated for one specific example of a bioenergy option, conversion of an unutilised mature forest into a production forest harvested repeatedly for bioenergy over successive 25-year rotations. The overall benefit of the option was assessed by including stand-level carbon dynamics, global carbon-cycle feedback, progressively changing radiative efficiency and marginal impact sensitivity of warming. It also includes a differentiated assessment of three kinds of climatic impacts: direct-warming, rate-of-warming and cumulative-warming impacts. Marginal impacts were calculated and summed over 100 years to assess the overall marginal impact of this bioenergy option. Results and discussion Bioenergy use in this specific example led to a large initial loss of biomass carbon followed by an ongoing and accumulating benefit through fossil-fuel substitution. This caused adverse climatic impacts over the first two rotations as the effects of the on-site carbon loss dominated the overall impact, but the option became increasingly beneficial over longer time frames as the benefit of fossil-fuel substitution accrued and eventually dominated. Summed over 100 years, the bioenergy option reduced direct-temperature and rate-of-warming impacts whilst increasing cumulative-warming impacts. The average of the three kinds of impacts showed a slight mitigation benefit by reducing overall impacts. In the particular example, bioenergy use was assessed to have a more beneficial effect if the analysis was carried out under the assumption of higher-emission concentrations pathways, or if it assumed a steeper relationship between climate perturbations and impacts. Conclusions The usefulness of any climate-change mitigation option ultimately relates to the marginal climate-change impacts it can avert. It is shown here that marginal impacts can be calculated in routine operation and that they can provide an objective and methodologically consistent assessment of the mitigation potential of bioenergy use.

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“…En la actualidad, el reemplazo parcial y total de los combustibles derivados del petróleo por biocombustibles de origen vegetal ha cobrado importancia en la industria por varias razones fundamentales a favor, tales como el hecho de que provienen de una fuente renovable [1]; este importante aspecto los convierte en un instrumento de lucha contra el deterioro medioambiental atribuido a la explotación y refinación de fuentes fósiles [2], además de ser un factor de desarrollo de la agricultura e industrias dependientes de esta, y que a futuro contribuirán tanto a la satisfacción de la demanda energética mundial como a la calidad del aire, entre otros beneficios [3].…”

Section: Introductionunclassified

Estudio de la dilución de FAMES para eliminar la contaminación de Jet-Fuel y biodiesel en un poliducto latinoamericano

Méndez¹,

Peralta-Ruiz²,

González-Delgado

2016

prospect

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Estudio de la dilución de FAMEs para eliminar la contaminación de Jet-Fuel y biodiesel en un poliducto latinoamericanoEstudio de la dilución de FAMEs para eliminar la contaminación de Jet-Fuel y biodiesel en un poliducto latinoamericano Study of FAMEs dilution for avoiding the contamination of Jet-Fuel and biodiesel in a latinamerican pipeline RESUMENLa utilización de biocombustibles producidos a partir de aceites naturales provenientes de plantas y animales es ventajosa desde el punto de vista ambiental debido a que al ser mezclados con combustibles de origen fósil, disminuyen en proporciones considerables los porcentajes de azufre emitidos a la atmosfera producto de su combustión. Sin embargo, por razones operativas, en algunos países latinoamericanos se utiliza la misma infraestructura para el transporte de biodiesel y Jet-Fuel, lo cual produce contaminación de este último, afectado la calidad, las propiedades del turbo combustible y alterando variables críticas de operación de los aviones en que se utiliza el Jet-Fuel como el punto de congelación. En este estudio, se presenta el desarrollo de una metodología para eliminar la contaminación de Jet-Fuel y biodiesel en el transporte por poliducto con miras a minimizar la presencia de componentes indeseados en el producto final, el análisis de la concentración de biodiesel en el turbocombustible se realizó mediante cromatografía de gases para varias purgas en el sistema. La aplicación de la metodología mostró factibilidad en la dilución de mezclas biodiesel-turbocombustible en poliducto por medio de un barrido y se pudo concluir que el flujo óptimo de dilución para obtener un turbocombustible con especificaciones requeridas es de 800 barriles con un intervalo permisible de operación entre 600 y 1200 barriles de Jet-Fuel. Palabras claves:Biodiesel; Jet-Fuel; Cromatografía; Contaminación; Transporte por poliducto. ABSTRACTThe use of biofuels produced from natural oils is advantageous from the environmental point of view because when they are mixed with fossil fuels, percentage of sulfur emitted to the atmosphere by fuel combustion is diminished. However, for operational reasons, in some Latin American countries the same infrastructure is used to transport biodiesel and Jet-fuel, resulting in contamination of both fuels affecting the quality, performance for the case of Jet-Fuel and altering critical operating variables of its use in aircrafts as freezing point. In this study, the development of a methodology for avoiding contamination of Jet-Fuel and biodiesel in the transport by pipeline in order to minimize the presence of unwanted components in the final product, the analysis of the concentration of biodiesel in jet fuel occurs was performed by gas chromatography for several purges of the system. The application of the methodology showed the feasibility of the dilution of biodiesel-Jet Fuel mixtures through a pipeline and it could be concluded that the optimum dilution flow was 800 barrels with a confidence operation interval between 600 to 1200 barrels of Jet-...

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Impact of agricultural-based biofuel production on greenhouse gas emissions from land-use change: Key modelling choices

Cited by 42 publications

References 99 publications

Impact of including land-use change emissions from biofuels on meeting GHG emissions reduction targets: the example of Ireland

Impact of including land-use change emissions from biofuels on meeting GHG emissions reduction targets: the example of Ireland

Assessing the merits of bioenergy by estimating marginal climate-change impacts

Estudio de la dilución de FAMES para eliminar la contaminación de Jet-Fuel y biodiesel en un poliducto latinoamericano

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