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Miljösystemstudie - svensk RME och etanol för tunga fordon

Mårtensson, Peter and Svensson, Marcus (2009)
Environmental and Energy Systems Studies
Abstract
In this master thesis an environmental assessment is carried out for rapeseed biodiesel (RME Rape Methyl Ester) and ethanol from wheat. The assessment is done considering Swedish conditions. Both these fuels are considered for use in heavy duty vehicles. The studied environmental impact categories are: GWP (Global Warming Potential), AP (Acidification Potential), EP (Eutrophication Potential), Particle emissions and POCP (Photo Chemical Oxidation Potential). Energy balances and sensitivity analyses are carried out for hot-spots found in the impact assessment. Environmental improvements regarding emissions of greenhouse gases are also discussed. For RME the study is based on conditions at the processing plant in Stenungsund, a modern state... (More)
In this master thesis an environmental assessment is carried out for rapeseed biodiesel (RME Rape Methyl Ester) and ethanol from wheat. The assessment is done considering Swedish conditions. Both these fuels are considered for use in heavy duty vehicles. The studied environmental impact categories are: GWP (Global Warming Potential), AP (Acidification Potential), EP (Eutrophication Potential), Particle emissions and POCP (Photo Chemical Oxidation Potential). Energy balances and sensitivity analyses are carried out for hot-spots found in the impact assessment. Environmental improvements regarding emissions of greenhouse gases are also discussed. For RME the study is based on conditions at the processing plant in Stenungsund, a modern state of the art RME-processing plant operated by the company Perstorp. The cultivation of rapeseed takes place outside of Sweden. Our study shows that RME reduces the environmental effect in the impact categories GWP and POCP. For emissions in the AP category, the impact is almost the same as for fossil diesel while in categories EP and particle emissions RME has a greater environmental impact. For ethanol this study is to a large extent based on Lantmännen Agroetanol⁳ production plant in Norrköping. Two separate cases are investigated: (1) all distillers†wet grain is used for animal fodder production, and (2): all distillers†wet grain is used for biogas production. Ethanol from wheat has in this study shown to reduce emissions in the impact categories GWP and particle emissions. However, in impact categories EP and POCP ethanol causes greater environmental impacts in comparison with fossil diesel. For impact category AP case 1 ethanol shows a positive effect, while for case 2 ethanol will increase the emissions in comparison with fossil diesel. The deviation between the two cases in both EP and AP can to a large extent be explained by the leakage of ammonia (NH3) when spreading biofertilizer from the biogas production. Environmental improvement analyses made in the life-cycles of RME and ethanol from wheat have shown that both biofuels have potential to further increase the benefits in GWP compared to fossil diesel. If the measures suggested in this master thesis are implemented, the benefits in GWP compared to fossil diesel can increase by approximately 18 % for RME. In the case of ethanol from wheat, suggested measures can provide additional GWP benefits of approximately 15 % in case 1, and approximately 13 % in case 2 compared to fossil diesel. (Less)
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author
Mårtensson, Peter and Svensson, Marcus
supervisor
organization
alternative title
Environmental assessment of RME and ethanol under Swedish conditions - for use in heavy duty vehicles
year
type
H3 - Professional qualifications (4 Years - )
subject
keywords
RME, etanol, livscykelanalys, tunga fordon
language
Swedish
id
4468217
date added to LUP
2014-06-18 13:32:22
date last changed
2014-06-18 13:34:05
@misc{4468217,
  abstract     = {In this master thesis an environmental assessment is carried out for rapeseed biodiesel (RME Rape Methyl Ester) and ethanol from wheat. The assessment is done considering Swedish conditions. Both these fuels are considered for use in heavy duty vehicles. The studied environmental impact categories are: GWP (Global Warming Potential), AP (Acidification Potential), EP (Eutrophication Potential), Particle emissions and POCP (Photo Chemical Oxidation Potential). Energy balances and sensitivity analyses are carried out for hot-spots found in the impact assessment. Environmental improvements regarding emissions of greenhouse gases are also discussed. For RME the study is based on conditions at the processing plant in Stenungsund, a modern state of the art RME-processing plant operated by the company Perstorp. The cultivation of rapeseed takes place outside of Sweden. Our study shows that RME reduces the environmental effect in the impact categories GWP and POCP. For emissions in the AP category, the impact is almost the same as for fossil diesel while in categories EP and particle emissions RME has a greater environmental impact. For ethanol this study is to a large extent based on Lantmännen Agroetanol⁳ production plant in Norrköping. Two separate cases are investigated: (1) all distillers†wet grain is used for animal fodder production, and (2): all distillers†wet grain is used for biogas production. Ethanol from wheat has in this study shown to reduce emissions in the impact categories GWP and particle emissions. However, in impact categories EP and POCP ethanol causes greater environmental impacts in comparison with fossil diesel. For impact category AP case 1 ethanol shows a positive effect, while for case 2 ethanol will increase the emissions in comparison with fossil diesel. The deviation between the two cases in both EP and AP can to a large extent be explained by the leakage of ammonia (NH3) when spreading biofertilizer from the biogas production. Environmental improvement analyses made in the life-cycles of RME and ethanol from wheat have shown that both biofuels have potential to further increase the benefits in GWP compared to fossil diesel. If the measures suggested in this master thesis are implemented, the benefits in GWP compared to fossil diesel can increase by approximately 18 % for RME. In the case of ethanol from wheat, suggested measures can provide additional GWP benefits of approximately 15 % in case 1, and approximately 13 % in case 2 compared to fossil diesel.},
  author       = {Mårtensson, Peter and Svensson, Marcus},
  keyword      = {RME,etanol,livscykelanalys,tunga fordon},
  language     = {swe},
  note         = {Student Paper},
  title        = {Miljösystemstudie - svensk RME och etanol för tunga fordon},
  year         = {2009},
}