CO2 emission accounting for the non-energy use of fossil fuels in Italy: A comparison between NEAT model and the IPCC approaches

S. La Motta, D. Santino, P. Ancona, M. Weiss

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Abstract

In this article, we apply the Non-energy Use Emission Accounting Tables (NEAT) model as an independent mass balance approach to Italy in order to estimate total non-energy use and related CO2emissions for the year 1990 and the period 1995-1997. The model results are compared with official data according to the IPCC Reference Approach (IPCC-RA) and the IPCC Sectoral Approach (IPCC-SA) of the Italian National Inventory Report. The NEAT results for total non-energy use range between 25.0 and 27.6 Mt CO2equivalents and are therefore clearly below the values used in the IPCC-RA (31.3-32.8 Mt CO2equivalents). Our research revealed inconsistencies in the IPCC-RA regarding feedstock consumption (i) of steam crackers in 1990 and (ii) for ammonia production in the period of 1995-1997. The CO2emissions as determined with NEAT correspond well with official IPCC-SA values for most individual industrial processes. However, the total industrial process emissions are underestimated in the IPCC-SA because CO2released from methanol and carbon black production is not taken into account. Moreover, we calculate with NEAT 14-61% higher CO2emissions from 'solvent and other product use' than the IPCC-SA. These deviations are caused to some extent by the fact that the IPCC-SA does not account for CO2emissions from the consumption of lubricants. In total, we therefore conclude that emissions from the non-energy use of fossil fuels are currently underestimated in the IPCC-SA. Further research is recommended (i) to improve the general accuracy of emission estimates for 'solvent and other product use' in the IPCC-SA and (ii) to introduce a definition for non-energy use, which allocates feedstock consumption consistently to either energy use or non-energy use in the IPCC-SA and the IPCC-RA of the Italian National Inventory Report. © 2005 Elsevier B.V. All rights reserved.
Original languageEnglish
Pages (from-to)310 - 330
Number of pages21
JournalResources, Conservation and Recycling
Volume45
Issue number3
DOIs
Publication statusPublished - Nov 2005
Externally publishedYes

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All Science Journal Classification (ASJC) codes

  • Renewable Energy, Sustainability and the Environment
  • Management, Monitoring, Policy and Law
  • Waste Management and Disposal

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