Comparison of Indirect CO2-emissions of Different Renewable Transport Fuels

Holmberg, Henrik; Siitonen, Sari; Laukkanen, Timo; Tuomaala, Mari; Niskanen, Tuomas

doi:10.1016/j.egypro.2015.06.004

Cited by 7 publications

(1 citation statement)

References 3 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…One of the most recurrent proposals is the complete electrification of energy services, including mobility. This solution, although at first sight may seem quite adequate, requires a more careful analysis to evaluate its effectiveness and to avoid indirect CO 2 emissions, which can ultimately lead to adverse scenarios [18,19]. An interesting solution which has been on the table for more than twenty years is the question of hydrogen [20].…”

Section: Introductionmentioning

confidence: 99%

Energy Sustainability Analysis (ESA) of Energy-Producing Processes: A Case Study on Distributed H2 Production

Gómez-Camacho

Ruggeri

2019

Sustainability

View full text Add to dashboard Cite

In the sustainability context, the performance of energy-producing technologies, using different energy sources, needs to be scored and compared. The selective criterion of a higher level of useful energy to feed an ever-increasing demand of energy to satisfy a wide range of endo- and exosomatic human needs seems adequate. In fact, surplus energy is able to cover energy services only after compensating for the energy expenses incurred to build and to run the technology itself. This paper proposes an energy sustainability analysis (ESA) methodology based on the internal and external energy use of a given technology, considering the entire energy trajectory from energy sources to useful energy. ESA analysis is conducted at two levels: (i) short-term, by the use of the energy sustainability index (ESI), which is the first step to establish whether the energy produced is able to cover the direct energy expenses needed to run the technology and (ii) long-term, by which all the indirect energy-quotas are considered, i.e., all the additional energy requirements of the technology, including the energy amortization quota necessary for the replacement of the technology at the end of its operative life. The long-term level of analysis is conducted by the evaluation of two indicators: the energy return per unit of energy invested (EROI) over the operative life and the energy payback-time (EPT), as the minimum lapse at which all energy expenditures for the production of materials and their construction can be repaid to society. The ESA methodology has been applied to the case study of H2 production at small-scale (10–15 kWH2) comparing three different technologies: (i) steam-methane reforming (SMR), (ii) solar-powered water electrolysis (SPWE), and (iii) two-stage anaerobic digestion (TSAD) in order to score the technologies from an energy sustainability perspective.

show abstract

Section: Introductionmentioning

confidence: 99%

Energy Sustainability Analysis (ESA) of Energy-Producing Processes: A Case Study on Distributed H2 Production

Gómez-Camacho

Ruggeri

2019

Sustainability

View full text Add to dashboard Cite

show abstract

The asymmetric role of freight and passenger transportation in testing EKC in the US economy: evidence from QARDL approach

Godil

Sharif

Afshan

et al. 2020

Environ Sci Pollut Res

View full text Add to dashboard Cite

Environmental Assessment of Co-location Alternatives for a Microalgae Cultivation Plant: A Case Study in the City of Kingston (Canada)

Collotta

Champagne²,

Mabee³

et al. 2016

Energy Procedia

View full text Add to dashboard Cite

In recent years there has been growing interest in the use of microalgae as a feedstock for biofuels, particularly for biodiesel. The production process of biodiesel from microalgae generally consists of five different phases: cultivation, harvesting, drying, lipid extraction and transesterification. While existing technologies are available to undertake each of these phases, the process would benefit from enhanced sustainability achieved by reducing environmental impact and costs. One process innovation currently under consideration is the use of waste products as inputs to the process, including CO2 captured from industrial flue gas, or nutrients from wastewater. These could be employed in algae cultivation. The co-location of an algae cultivation plant with other industrial facilities, such as a cement plant or a wastewater treatment facility, could result in significantly reduced atmospheric emissions and improve wastewater effluent discharges. A comparative life cycle assessment approach is used to examine two different, realistic alternatives for the co-location of an algae cultivation plant with an existing cement plant or wastewater treatment facility near Kingston, Ontario, Canada. The study seeks to identify a preferred siting option from the perspective of minimizing environmental impacts. The first alternative involves the co-location with the Lafarge Cement plant, on the north shore of Lake Ontario, near Bath Ontario. The second alternative consists in the co-location with the Ravensview wastewater treatment facility east of the city of Kingston on the St. Lawrence River. The algae production plant is based on an open pond technology and is assumed to have a production capacity of about 120 tons of dry microalgal biomass per year. © 2016 The Authors

show abstract

Comparison of Indirect CO2-emissions of Different Renewable Transport Fuels

Cited by 7 publications

References 3 publications

Energy Sustainability Analysis (ESA) of Energy-Producing Processes: A Case Study on Distributed H2 Production

Energy Sustainability Analysis (ESA) of Energy-Producing Processes: A Case Study on Distributed H2 Production

The asymmetric role of freight and passenger transportation in testing EKC in the US economy: evidence from QARDL approach

Environmental Assessment of Co-location Alternatives for a Microalgae Cultivation Plant: A Case Study in the City of Kingston (Canada)

Contact Info

Product

Resources

About