Environmental life cycle assessments of producing maize, grass-clover, ryegrass and winter wheat straw for biorefinery

Ranjan Parajuli, Ib Sillebak Kristensen, Marie Trydeman Knudsen, Lisbeth Mogensen, Andrea Corona, Morten Birkved, Nancy Peña, Morten Graversgaard, Tommy Dalgaard

Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

Resumé

The aim of this study is to assess the potential environmental impacts of producing maize, grass-clover, ryegrass, and straw from winter wheat as biomass feedstocks for biorefinery. The Life Cycle Assessment (LCA) method included the following impact categories: Global Warming Potential (GWP100), Eutrophication Potential (EP), Non-Renewable Energy use (NRE), Potential Fresh Water Ecotoxicity (PFWTox) and Potential Biodiversity Damages (PBD). The results showed that GWP100 (in kg CO2 eq, including contribution from soil carbon change) for producing 1 ton of dry matter (t DM) was highest for ryegrass, grass-clover and maize, and lowest for straw. The carbon footprints of ryegrass, grass-clover and maize were affected by including the contribution from soil organic carbon (SOC) changes. Nitrous oxide emissions and emissions related to the production of agro-chemicals (including N-fertilizer) were other hotspots in the carbon footprint. The EP calculated per t DM was highest for grass-clover, ryegrass and maize, and was lowest for straw. NRE use (MJ eq/t DM) was highest for ryegrass, grass-clover and maize and lowest for straw. Major hotspots were diesel use for field operations and agro-chemicals production. The PBD, expressed as Potentially Disappeared Fraction (PDF) showed the highest adverse impact to biodiversity in maize, followed by straw, whereas the results showed relatively lower impact for ryegrass and grass-clover. The PFWTox (CTUe/t DM), at farm level was highest for straw, followed by maize, whereas the values were significantly lower for grass-clover and ryegrass. These variations in ranking ofthe different biomasses productions using different impact categories for environmental performance showed that it is important to consider a wider range of impact categories for assessing environmental sustainability.
OriginalsprogUdefineret/Ukendt
TidsskriftJournal of Cleaner Production
Vol/bind142
Udgave nummer4
Sider (fra-til)3859–3871
ISSN0959-6526
DOI
StatusUdgivet - 2017
Udgivet eksterntJa

Emneord

  • Life Cycle Assessment, Biorefinery, Enviromental Impacts, Ecotoxicity, Soil Organic Carbon, Denmark

Citer dette

Parajuli, Ranjan ; Kristensen, Ib Sillebak ; Knudsen, Marie Trydeman ; Mogensen, Lisbeth ; Corona, Andrea ; Birkved, Morten ; Peña, Nancy ; Graversgaard, Morten ; Dalgaard, Tommy. / Environmental life cycle assessments of producing maize, grass-clover, ryegrass and winter wheat straw for biorefinery. I: Journal of Cleaner Production. 2017 ; Bind 142, Nr. 4. s. 3859–3871.
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title = "Environmental life cycle assessments of producing maize, grass-clover, ryegrass and winter wheat straw for biorefinery",
abstract = "The aim of this study is to assess the potential environmental impacts of producing maize, grass-clover, ryegrass, and straw from winter wheat as biomass feedstocks for biorefinery. The Life Cycle Assessment (LCA) method included the following impact categories: Global Warming Potential (GWP100), Eutrophication Potential (EP), Non-Renewable Energy use (NRE), Potential Fresh Water Ecotoxicity (PFWTox) and Potential Biodiversity Damages (PBD). The results showed that GWP100 (in kg CO2 eq, including contribution from soil carbon change) for producing 1 ton of dry matter (t DM) was highest for ryegrass, grass-clover and maize, and lowest for straw. The carbon footprints of ryegrass, grass-clover and maize were affected by including the contribution from soil organic carbon (SOC) changes. Nitrous oxide emissions and emissions related to the production of agro-chemicals (including N-fertilizer) were other hotspots in the carbon footprint. The EP calculated per t DM was highest for grass-clover, ryegrass and maize, and was lowest for straw. NRE use (MJ eq/t DM) was highest for ryegrass, grass-clover and maize and lowest for straw. Major hotspots were diesel use for field operations and agro-chemicals production. The PBD, expressed as Potentially Disappeared Fraction (PDF) showed the highest adverse impact to biodiversity in maize, followed by straw, whereas the results showed relatively lower impact for ryegrass and grass-clover. The PFWTox (CTUe/t DM), at farm level was highest for straw, followed by maize, whereas the values were significantly lower for grass-clover and ryegrass. These variations in ranking ofthe different biomasses productions using different impact categories for environmental performance showed that it is important to consider a wider range of impact categories for assessing environmental sustainability.",
keywords = "Life Cycle Assessment, Biorefinery, Enviromental Impacts, Ecotoxicity, Soil Organic Carbon, Denmark",
author = "Ranjan Parajuli and Kristensen, {Ib Sillebak} and Knudsen, {Marie Trydeman} and Lisbeth Mogensen and Andrea Corona and Morten Birkved and Nancy Pe{\~n}a and Morten Graversgaard and Tommy Dalgaard",
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doi = "10.1016/j.jclepro.2016.10.076",
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volume = "142",
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Parajuli, R, Kristensen, IS, Knudsen, MT, Mogensen, L, Corona, A, Birkved, M, Peña, N, Graversgaard, M & Dalgaard, T 2017, 'Environmental life cycle assessments of producing maize, grass-clover, ryegrass and winter wheat straw for biorefinery', Journal of Cleaner Production, bind 142, nr. 4, s. 3859–3871. https://doi.org/10.1016/j.jclepro.2016.10.076

Environmental life cycle assessments of producing maize, grass-clover, ryegrass and winter wheat straw for biorefinery. / Parajuli, Ranjan; Kristensen, Ib Sillebak; Knudsen, Marie Trydeman; Mogensen, Lisbeth; Corona, Andrea; Birkved, Morten; Peña, Nancy; Graversgaard, Morten; Dalgaard, Tommy.

I: Journal of Cleaner Production, Bind 142, Nr. 4, 2017, s. 3859–3871.

Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

TY - JOUR

T1 - Environmental life cycle assessments of producing maize, grass-clover, ryegrass and winter wheat straw for biorefinery

AU - Parajuli, Ranjan

AU - Kristensen, Ib Sillebak

AU - Knudsen, Marie Trydeman

AU - Mogensen, Lisbeth

AU - Corona, Andrea

AU - Birkved, Morten

AU - Peña, Nancy

AU - Graversgaard, Morten

AU - Dalgaard, Tommy

PY - 2017

Y1 - 2017

N2 - The aim of this study is to assess the potential environmental impacts of producing maize, grass-clover, ryegrass, and straw from winter wheat as biomass feedstocks for biorefinery. The Life Cycle Assessment (LCA) method included the following impact categories: Global Warming Potential (GWP100), Eutrophication Potential (EP), Non-Renewable Energy use (NRE), Potential Fresh Water Ecotoxicity (PFWTox) and Potential Biodiversity Damages (PBD). The results showed that GWP100 (in kg CO2 eq, including contribution from soil carbon change) for producing 1 ton of dry matter (t DM) was highest for ryegrass, grass-clover and maize, and lowest for straw. The carbon footprints of ryegrass, grass-clover and maize were affected by including the contribution from soil organic carbon (SOC) changes. Nitrous oxide emissions and emissions related to the production of agro-chemicals (including N-fertilizer) were other hotspots in the carbon footprint. The EP calculated per t DM was highest for grass-clover, ryegrass and maize, and was lowest for straw. NRE use (MJ eq/t DM) was highest for ryegrass, grass-clover and maize and lowest for straw. Major hotspots were diesel use for field operations and agro-chemicals production. The PBD, expressed as Potentially Disappeared Fraction (PDF) showed the highest adverse impact to biodiversity in maize, followed by straw, whereas the results showed relatively lower impact for ryegrass and grass-clover. The PFWTox (CTUe/t DM), at farm level was highest for straw, followed by maize, whereas the values were significantly lower for grass-clover and ryegrass. These variations in ranking ofthe different biomasses productions using different impact categories for environmental performance showed that it is important to consider a wider range of impact categories for assessing environmental sustainability.

AB - The aim of this study is to assess the potential environmental impacts of producing maize, grass-clover, ryegrass, and straw from winter wheat as biomass feedstocks for biorefinery. The Life Cycle Assessment (LCA) method included the following impact categories: Global Warming Potential (GWP100), Eutrophication Potential (EP), Non-Renewable Energy use (NRE), Potential Fresh Water Ecotoxicity (PFWTox) and Potential Biodiversity Damages (PBD). The results showed that GWP100 (in kg CO2 eq, including contribution from soil carbon change) for producing 1 ton of dry matter (t DM) was highest for ryegrass, grass-clover and maize, and lowest for straw. The carbon footprints of ryegrass, grass-clover and maize were affected by including the contribution from soil organic carbon (SOC) changes. Nitrous oxide emissions and emissions related to the production of agro-chemicals (including N-fertilizer) were other hotspots in the carbon footprint. The EP calculated per t DM was highest for grass-clover, ryegrass and maize, and was lowest for straw. NRE use (MJ eq/t DM) was highest for ryegrass, grass-clover and maize and lowest for straw. Major hotspots were diesel use for field operations and agro-chemicals production. The PBD, expressed as Potentially Disappeared Fraction (PDF) showed the highest adverse impact to biodiversity in maize, followed by straw, whereas the results showed relatively lower impact for ryegrass and grass-clover. The PFWTox (CTUe/t DM), at farm level was highest for straw, followed by maize, whereas the values were significantly lower for grass-clover and ryegrass. These variations in ranking ofthe different biomasses productions using different impact categories for environmental performance showed that it is important to consider a wider range of impact categories for assessing environmental sustainability.

KW - Life Cycle Assessment, Biorefinery, Enviromental Impacts, Ecotoxicity, Soil Organic Carbon, Denmark

U2 - 10.1016/j.jclepro.2016.10.076

DO - 10.1016/j.jclepro.2016.10.076

M3 - Tidsskriftartikel

VL - 142

SP - 3859

EP - 3871

JO - Journal of Cleaner Production

JF - Journal of Cleaner Production

SN - 0959-6526

IS - 4

ER -