Promoting biofuels use in Spain: A cost-benefit analysis

Santamaría, Marta; Oyarzún, Diego Azqueta

doi:10.1016/j.rser.2015.04.192

“…In terms of RE technologies, CBA was used in research to assess the suitability of biofuels policies at the national level. The results confirmed the positive impact of this policy on the quality of the environment, mainly due to the GHG emission reduction [52]. Research conducted for the Greek power generation sector, supported by CBA and multicriteria decision analysis, has confirmed that the highest penetration of RES is the best scenario that has been proven to ensure the best balance between economic, technical, and environmental considerations and the sustainable development power generation sector [53].…”

Section: Introductionsupporting

confidence: 55%

Economic Analysis of Measures for GHG Emission Reduction

Ćetković

¹

,

Lakić

²

,

Živković

³

et al. 2021

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The European Union, as a signatory to the Paris Agreement, has approached the action against greenhouse gas (GHG) emissions and climate change quite ambitiously, striving to achieve climate neutrality by 2050. Extension of the European Green Deal policy implementation to the Western Balkans can only increase the chances of the climate neutral agenda. Expectations from Montenegro in the coming period are transposable to other Western Balkans countries as they are urged to start implementing the Paris Agreement by establishing appropriate policies and measures. In this regard, this paper presents the analysis of the financial and economic analysis results of measures to reduce GHG emissions in Montenegro. With this respect, least cost analysis—cost effectiveness analysis and cost–benefit analysis were conducted. The analysis results indicated that due to the thermal power plant reconstruction, increased use of renewable energy sources and measures to increase energy efficiency, the largest reduction in GHG emissions in Montenegro in the next 10 years is expected in the energy sector.

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“…In contrast to traditional fuels, biofuels derived from renewable sources are ultimately the best appropriate choice given its environment and economic benefits (Santamaría and Azqueta 2015). Algae are a promising green energy source due to their high protein and oil content.…”

Section: Production Of Liquid Hydrocarbons Based On Co 2 (Fischer-tromentioning

confidence: 99%

Recent advances in carbon capture storage and utilisation technologies: a review

Osman

¹

,

Hefny

²

,

Maksoud

³

et al. 2020

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Human activities have led to a massive increase in $$\hbox {CO}_{2}$$ CO 2 emissions as a primary greenhouse gas that is contributing to climate change with higher than $$1\,^{\circ }\hbox {C}$$ 1 ∘ C global warming than that of the pre-industrial level. We evaluate the three major technologies that are utilised for carbon capture: pre-combustion, post-combustion and oxyfuel combustion. We review the advances in carbon capture, storage and utilisation. We compare carbon uptake technologies with techniques of carbon dioxide separation. Monoethanolamine is the most common carbon sorbent; yet it requires a high regeneration energy of 3.5 GJ per tonne of $$\hbox {CO}_{2}$$ CO 2 . Alternatively, recent advances in sorbent technology reveal novel solvents such as a modulated amine blend with lower regeneration energy of 2.17 GJ per tonne of $$\hbox {CO}_{2}$$ CO 2 . Graphene-type materials show $$\hbox {CO}_{2}$$ CO 2 adsorption capacity of 0.07 mol/g, which is 10 times higher than that of specific types of activated carbon, zeolites and metal–organic frameworks. $$\hbox {CO}_{2}$$ CO 2 geosequestration provides an efficient and long-term strategy for storing the captured $$\hbox {CO}_{2}$$ CO 2 in geological formations with a global storage capacity factor at a Gt-scale within operational timescales. Regarding the utilisation route, currently, the gross global utilisation of $$\hbox {CO}_{2}$$ CO 2 is lower than 200 million tonnes per year, which is roughly negligible compared with the extent of global anthropogenic $$\hbox {CO}_{2}$$ CO 2 emissions, which is higher than 32,000 million tonnes per year. Herein, we review different $$\hbox {CO}_{2}$$ CO 2 utilisation methods such as direct routes, i.e. beverage carbonation, food packaging and oil recovery, chemical industries and fuels. Moreover, we investigated additional $$\hbox {CO}_{2}$$ CO 2 utilisation for base-load power generation, seasonal energy storage, and district cooling and cryogenic direct air $$\hbox {CO}_{2}$$ CO 2 capture using geothermal energy. Through bibliometric mapping, we identified the research gap in the literature within this field which requires future investigations, for instance, designing new and stable ionic liquids, pore size and selectivity of metal–organic frameworks and enhancing the adsorption capacity of novel solvents. Moreover, areas such as techno-economic evaluation of novel solvents, process design and dynamic simulation require further effort as well as research and development before pilot- and commercial-scale trials.

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“…For regional sustainable aviation fuel production, the production cost of biofuel is estimated to be between 0.70 and 1.90 $ L −1 , with an average value of 1.10 $ L −1 . This cost may meet the requirement of the conventional jet fuel price of 1.50 $ L −1 in 2035, despite the fact that the cost of biofuels was approximately 25–30 % higher than that of fossil fuels in 2015 . Taking into account the external cost of CO 2 , the cost of algal biofuel is the lowest because of CO 2 absorption in the growth period, which indicates that algal biofuel has significant environment advantages over fossil fuels or traditional crop biofuels .…”

Section: Real Systems and Environmental/economic Opportunitiesmentioning

confidence: 99%

Heterogeneous Catalytic Conversion of Biobased Chemicals into Liquid Fuels in the Aqueous Phase

Wu

¹

,

Wu

²

,

Chen

³

et al. 2016

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Different biobased chemicals are produced during the conversion of biomass into fuels through various feasible technologies (e.g., hydrolysis, hydrothermal liquefaction, and pyrolysis). The challenge of transforming these biobased chemicals with high hydrophilicity is ascribed to the high water content of the feedstock and the inevitable formation of water. Therefore, aqueous-phase processing is an interesting technology for the heterogeneous catalytic conversion of biobased chemicals. Different reactions, such as dehydration, isomerization, aldol condensation, ketonization, and hydrogenation, are applied for the conversion of sugars, furfural/hydroxymethylfurfural, acids, phenolics, and so on over heterogeneous catalysts. The activity, stability, and reusability of the heterogeneous catalysts in water are summarized, and deactivation processes and several strategies are introduced to improve the stability of heterogeneous catalysts in the aqueous phase.

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Promoting biofuels use in Spain: A cost-benefit analysis

Cited by 25 publications

References 22 publications

Economic Analysis of Measures for GHG Emission Reduction

Economic Analysis of Measures for GHG Emission Reduction

Recent advances in carbon capture storage and utilisation technologies: a review

Heterogeneous Catalytic Conversion of Biobased Chemicals into Liquid Fuels in the Aqueous Phase

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