A life cycle assessment of biodiesel derived from the “niche filling” energy crop camelina in the USA

Krohn, Brian; Fripp, Matthias

doi:10.1016/j.apenergy.2011.10.025

Cited by 87 publications

(59 citation statements)

References 28 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…In a subsequent study, winter Camelina grown as double crop and relay crop with soybean showed similar net economic returns compared to the monocropped full season soybean [23]. Further, life cycle assessments of biodiesel produced from Camelina grown under different conditions showed reduced energy, non-renewable energy inputs and overall green house gas emissions compared to diesel fuel, as well as biodiesel from other oilseed crops [24,25], making Camelina a more environmental friendly substitute than other biofuel crops.…”

Section: Environmental Benefits Of Camelina As An Industrial Oilseed mentioning

confidence: 84%

Camelina sativa: An ideal platform for the metabolic engineering and field production of industrial lipids

Bansal

Durrett

2016

Biochimie

View full text Add to dashboard Cite

Triacylglycerols (TAG) containing modified fatty acids with functionality beyond those found in commercially grown oil seed crops can be used as feedstocks for biofuels and bio-based materials. Over the years, advances have been made in transgenically engineering the production of various modified fatty acids in the model plant Arabidopsis thaliana. However, the inability to produce large quantities of transgenic seed has limited the functional testing of the modified oil. In contrast, the emerging oil seed crop Camelina sativa possesses important agronomic traits that recommend it as an ideal production platform for biofuels and industrial feedstocks. Camelina possesses low water and fertilizer requirements and is capable of yields comparable to other oil seed crops, particularly under stress conditions. Importantly, its relatively short growing season enables it to be grown as part of a double cropping system. In addition to these valuable agronomic features, Camelina is amenable to rapid metabolic engineering. The development of a simple and effective transformation method, combined with the availability of abundant transcriptomic and genomic data, has allowed the generation of transgenic Camelina lines capable of synthesizing high levels of unusual lipids. In some cases these levels have surpassed what was achieved in Arabidopsis. Further, the ability to use Camelina as a crop production system has allowed for the large scale growth of transgenic oil seed crops, enabling subsequent physical property testing. The application of new techniques such as genome editing will further increase the suitability of Camelina as an ideal platform for the production of biofuels and bio-materials.

show abstract

Section: Environmental Benefits Of Camelina As An Industrial Oilseed mentioning

confidence: 84%

Camelina sativa: An ideal platform for the metabolic engineering and field production of industrial lipids

Bansal

Durrett

2016

Biochimie

View full text Add to dashboard Cite

show abstract

“…Only 8 of the articles looked at the overall endpoint impacts (Cavalett et al 2013;Consorcio 2012;Emmenegger et al 2011;Koch 2003;Neupane et al 2011;Yang et al Environmental Management 2012), with the Cavalett et al (2013) study performing multiple analyses comparing endpoint results from different LCA methodologies. Ecoindicator 99 is the most common LCIA method for analyzing endpoint impacts.…”

Section: Impact Assessment Categories and Methodsmentioning

confidence: 98%

A Review of Environmental Life Cycle Assessments of Liquid Transportation Biofuels in the Pan American Region

Shonnard

Klemetsrud

Sacramento-Rivero

et al. 2015

Environmental Management

View full text Add to dashboard Cite

Life-cycle assessment (LCA) has been applied to many biofuel and bioenergy systems to determine potential environmental impacts, but the conclusions have varied. Different methodologies and processes for conducting LCA of biofuels make the results difficult to compare, in-turn making it difficult to make the best possible and informed decision. Of particular importance are the wide variability in country-specific conditions, modeling assumptions, data quality, chosen impact categories and indicators, scale of production, system boundaries, and co-product allocation. This study has a double purpose: conducting a critical evaluation comparing environmental LCA of biofuels from several conversion pathways and in several countries in the Pan American region using both qualitative and quantitative analyses, and making recommendations for harmonization with respect to biofuel LCA study features, such as study assumptions, inventory data, impact indicators, and reporting practices. The environmental management implications are discussed within the context of different national and international regulatory environments using a case study. The results from this study highlight LCA methodology choices that cause high variability in results and limit comparability among different studies, even among the same biofuel pathway, and recommendations are provided for improvement.

show abstract

“…Biomass credit is a measure of carbon savings delivered by the biofuel plantations through natural carbon fixation (photosynthesis). The biomass credit is generally assumed to be equivalent to the amount of CO 2 wake emissions as observed in a number of studies [8,10,12,16]. Feedstockspecific quantification of the biomass credit is, however, crucial to ranking the biofuels based on their carbon intensity.…”

Section: Life Cycle Emission Assessments Of Camelina Spk [7e9]mentioning

confidence: 99%

Life cycle greenhouse gas analysis of biojet fuels with a technical investigation into their impact on jet engine performance

Lokesh

Sethi

Nikolaidis

et al. 2015

Biomass and Bioenergy

View full text Add to dashboard Cite

Life cycle emissions Engine/aircraft performance Thermodynamics Numerical modelling a b s t r a c t Biojet fuels have been claimed to be one of the most promising and strategic solutions to mitigate aviation emissions. This study examines the environmental competence of BioSynthetic Paraffinic Kerosene (Bio-SPKs) against conventional Jet-A, through development of a life cycle GHG model (ALCEmB e Assessment of Life Cycle Emissions of Biofuels) from "cradle-grave" perspective. This model precisely calculates the life cycle emissions of the advanced biofuels through a multi-disciplinary study entailing hydrocarbon chemistry, thermodynamic behaviour and fuel combustion from engine/aircraft performance, into the life cycle studies, unlike earlier studies. The aim of this study is predict the "cradle-grave" carbon intensity of Camelina SPK, Microalgae SPK and Jatropha SPK through careful estimation and inclusion of combustion based emissions, which contribute z70% of overall life cycle emissions (LCE). Numerical modelling and non-linear/dynamic simulation of a twin-shaft turbofan, with an appropriate airframe, was conducted to analyse the impact of alternative fuels on engine/aircraft performance. ALCEmB revealed that Camelina SPK, Microalgae SPK and Jatropha SPK delivered 70%, 58% and 64% LCE savings relative to the reference fuel, Jet-A1. The net energy ratio analysis indicates that current technology for the biofuel processing is energy efficient and technically feasible. An elaborate gas property analysis infers that the Bio-SPKs exhibit improved thermodynamic behaviour in an operational gas turbine engine. This thermodynamic effect has a positive impact on aircraft-level fuel consumption and emissions characteristics demonstrating fuel savings in the range of 3e3.8% and emission savings of 5.8e6.3% (CO 2 ) and 7.1e8.3% (LTO NOx), relative to that of Jet-A.

show abstract

A life cycle assessment of biodiesel derived from the “niche filling” energy crop camelina in the USA

Cited by 87 publications

References 28 publications

Camelina sativa: An ideal platform for the metabolic engineering and field production of industrial lipids

Camelina sativa: An ideal platform for the metabolic engineering and field production of industrial lipids

A Review of Environmental Life Cycle Assessments of Liquid Transportation Biofuels in the Pan American Region

Life cycle greenhouse gas analysis of biojet fuels with a technical investigation into their impact on jet engine performance

Contact Info

Product

Resources

About