Energy Efficiency and CO2 Emission Assessment of Bio-SNG production-A Methodology Comparison
Fossil fuels applied in energy generation-,transport-and refinery processes can be replaced by biofuels.This offers plenty processing options for biomass resources such as thermo-chemical.For process evaluation different criteria is applied,usually including costs,energy efficiency and CO2 emission.However,comparative evaluation of the energy efficiency is difficult since no general standard method exists.The objective of this paper is to compare different methods of energy efficiency and CO2 emission assessment in order to systematically analyse their differences qualitatively and quantitatively.The methods include a general engineering approach,CO2 assessment according to the EUs Renewable Energy Sources Directive,primary energy efficiency analysis(incl.CO2 assessment)and exergy analysis.In this paper the methods are compared,based on a case study of Bio-SNG generation from woody biomass(simulated with Aspen+).The work shows the differences of the methods when applied to the same process allowing critical discussions of the methods applicability and providing a starting point for the future work on developing novel energy efficiency and CO2 emission assessment methods.
Energy Efficiency CO2 Emissions Exergy Analysis Methodology Assessment Bio-SNG (Synthetic Natural Gas)
T.Kohl T.Laukkanen M.Tuomaala T.Niskanen S.Siitonen M.P.J(a)rvinen P.Ahtila
Aalto University,Dept.of Energy Technology,Espoo,Finland Gasum OY,Espoo,Finland
国际会议
桂林
英文
1-13
2013-07-16（万方平台首次上网日期，不代表论文的发表时间）