Carbon Emission | carbon emission
4.9.1The‘ZeroEmissionCarbon(ZEC)’concept‘ZeroEmissionCarbon(ZEC)’isapowergenerationschemeforproducinghydrogenfromcoal.Theschemewasconceivedaspartofanefforttousemoderncombustiontechnologiesandgasificationsystemstominimizetheimpactontheenvironmentofcoaluseinpowergeneration.AlsoreferredtoastheLANLZECtechnology,ZECwasfirstproposedbyresearchersattheLosAlamosNationalLaboratory(LANL)andatLouisianaStateUniversityintheUnitedStates(OECD/IEA,2002).Theconceptofzeroemissionsembracesthecaptureanddisposalo...
4.9.1 The ‘Zero Emission Carbon (ZEC)’ concept‘Zero Emission Carbon (ZEC)’ is a power generation scheme for producing hydrogen from coal. The scheme was conceived as part of an effort to use modern combustion technologies and gasification systems to minimize the impact on the environment of coal use in power generation. Also referred to as the LANL ZEC technology, ZEC was first proposed by researchers at the Los Alamos National Laboratory (LANL) and at Louisiana State University in the United States (OECD/IEA, 2002). The concept of zero emissions embraces the capture and disposal of CO2 and polluting species, such as particulates, mercury, sulphur, nitrogen and volatile organic compounds. The aim was to release only N2 and water vapour to the atmosphere.
The H2 produced by this scheme would be used to generate power in fuel cells or gas turbines. Clearly however, pollutant capture systems impose a thermal penalty ...