Application of the roundtable on sustainable biofuels method to regional differences in nitrous oxide emissions for the rapeseed hydrotreated renewable jet life cycle

Ukaew, Suchada; Beck, Emily; Meki, Manyowa N.; Shonnard, David R.

doi:10.1016/j.jclepro.2014.06.004

Cited by 7 publications

(2 citation statements)

References 23 publications

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“…Greater confidence in the life‐cycle GHG emissions of HEFA fuel, along with a host of economic and political factors, may aid the adoption of HEFA fuel in Canada, one of the world's top producers of canola 3 . Between 2008 and 2016, there were at least 13 LCAs published on HEFA fuels derived from canola, camelina, or carinata 4–16 …”

Section: Introductionmentioning

confidence: 99%

Review of life‐cycle greenhouse‐gas emissions assessments of hydroprocessed renewable fuel (HEFA) from oilseeds

Zemanek

Champagne

Mabee

2020

Biofuels Bioprod Bioref

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Renewable fuel from the hydroprocessed esters and fatty acids (HEFA) pathway represents a promising short‐term option for reducing fossil fuel use in transportation. However, some life‐cycle assessments (LCAs) have shown that HEFA diesel and jet fuel may have higher life‐cycle greenhouse gas (GHG) emissions than the fossil fuels they replace. Many of these studies examined HEFA fuel derived from oilseed feedstocks. Here, results and methodology from 20 LCAs of HEFA fuel from oilseeds are reviewed in an effort to determine the sources of variability in the reported life‐cycle GHG emissions of HEFA fuels. Although there was a 61–63% reduction in median life cycle GHG emissions of HEFA biojet and renewable diesel compared to conventional petroleum fuels, this review highlights the importance of standardized methodologies for life‐cycle assessment (e.g., CORSIA, RSB) and indicates the need to prevent the conversion of forest land for biofuel production, as well as the potential opportunity for alternative oilseeds such as camelina and carinata as feedstocks to produce HEFA fuels with lower life‐cycle GHG emissions. © 2020 Society of Chemical Industry and John Wiley & Sons, Ltd

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Section: Introductionmentioning

confidence: 99%

Review of life‐cycle greenhouse‐gas emissions assessments of hydroprocessed renewable fuel (HEFA) from oilseeds

Zemanek

Champagne

Mabee

2020

Biofuels Bioprod Bioref

View full text Add to dashboard Cite

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“…DNDC requires an initial 10-20 years of spin-up run to achieve a soil steady state, which is sensitive to both weather and management [29,35,42,71,72]. The crop residue decomposition-which is responsible for altering the SOC equilibrium-takes approximately 20 years to establish a new equilibrium [34,35].…”

Section: Model Run and Validationmentioning

confidence: 99%

Agricultural Greenhouse Gas Emissions in a Data-Scarce Region Using a Scenario-Based Modeling Approach: A Case Study in Southeastern USA

Afroz

Chen

et al. 2021

Agronomy

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Climate change may impact agricultural greenhouse gas emissions (GHGs) and yields under higher temperatures, higher atmospheric CO2 concentrations, and variable precipitations. This calls for adaptation strategies to optimize agricultural productions with minimal GHGs. This study aimed to identify these optimum agricultural managements in response to current and projected climatic scenarios for the Choctawhatchee Basin in Southeastern USA, an experimentally unexplored data-scarce region lacking validation data. This scenario-based modeling study analyzed a total of 1344 scenarios consisting of four major crops, eight managements (varying tillage, manuring, and residue), and forty climatic combinations under current as wells as two representative concentration pathways with process-based Denitrification and Decomposition (DNDC) model. The results indicated that the region’s GHGs and yields were most affected by higher temperatures (≥+3 °C) and extreme precipitation changes (≥±40%), while high atmospheric CO2 concentrations exerted positive fertilization effects. The manure-related and higher residue incorporation scenarios were found to be better options in varying climates with minimal present global warming potentials (GWP) of 0.23 k to −29.1 k MT equivalent CO2. As such, the study presented climate change impacts and potential mitigation options in the study region while presenting a framework to design GHG mitigation in similar data-scarce regions.

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Estimation of soil carbon change from rotation cropping of rapeseed with wheat in the hydrotreated renewable jet life cycle

Ukaew

Beck

Archer

et al. 2015

Int J Life Cycle Assess

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Application of the roundtable on sustainable biofuels method to regional differences in nitrous oxide emissions for the rapeseed hydrotreated renewable jet life cycle

Cited by 7 publications

References 23 publications

Review of life‐cycle greenhouse‐gas emissions assessments of hydroprocessed renewable fuel (HEFA) from oilseeds

Review of life‐cycle greenhouse‐gas emissions assessments of hydroprocessed renewable fuel (HEFA) from oilseeds

Agricultural Greenhouse Gas Emissions in a Data-Scarce Region Using a Scenario-Based Modeling Approach: A Case Study in Southeastern USA

Estimation of soil carbon change from rotation cropping of rapeseed with wheat in the hydrotreated renewable jet life cycle

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