10.5071/21STEUBCE2013-4BV.4.25
Heracleous, E.
E.
Heracleous
Lappas, A.A.
A.A.
Lappas
Assessment of the WTT Energy and CO2 Impacts of Different BtL-Naphtha Upgrading Scenarios
ETA-Florence Renewable Energies
2013
Conference paper
Biomass
2013
en
978-88-89407-53-0
2282-5819
8 Pages
application/pdf
Proceedings of the 21st European Biomass Conference and Exhibition, 3-7 June 2013, pp. 1670-1677
Although the light byproduct of FTsynthesis is not a suitable fuel for conventional engines, BtLnaphtha has the potential to become the best suited fuel for future powertrains like CCS and HCCI (Combined combustion system CCS and Homogeneous Charge Compression Ignition, HCCI), being even more efficient and having less emissions. Preliminary tests however indicated that further upgrading of the naphtha fraction is needed for optimized engine performance. The present work reports the environmental assessment of the WelltoTank (WTT) energy and CO2 impacts of different BtLnaphtha upgrading scenarios (including simple distillation, hydroisomerization, fluid catalytic cracking etc) using a life cycle analysis (LCA) approach. The paper describes the possible scenarios for the upgrading and use of BtLnaphtha, the lifecycle of each scenario and the calculation of the energy use and CO2eq emissions. Overall, none of the upgrading options were found to significantly aggravate the impact of the BtLprocess on energy use and GHG emissions, while at the same time providing significant economic revenue for the BtL process. It should be mentioned that the different scenarios should also be evaluated on technical and economic terms in order to determine the optimum upgrading pathway for BtLnaphtha.
Proceedings of the 21st European Biomass Conference and Exhibition, 3-7 June 2013, Copenhagen, Denmark, pp. 1670-1677