2019 Refinement

 

 

• Volume 2, Chapter 4, p. 56, Equation 4.2.11(New), the equation corrected to:
  
  
  
• Volume 2, Chapter 4, p. 56, section 1 B 2 a iii  Transport, the text of the second sentence corrected to:
  
  “The transportation systems may comprise pipelines, tank trucks and rail cars, tanks, and tanker ships”
• Volume 2, Chapter 4, p. 70, Table 4.2.4G(New), the EF values for “Onshore Coal Bed Methane” corrected:
  
  NMVOC to “0.47”; N₂O to “3.3E-04”
• Volume 2, Chapter 4, p. 71, footnote c, the following text added:
  
  “NMVOC values were developed from 2006 IPCC Guidelines by calculating a ratio of NMVOC to CH₄ from 2006 IPCC Guidelines, which was then applied to corresponding CH₄ values in this table. N₂O values were developed from 2006 IPCC Guidelines by calculating a ratio of N₂O to CO₂ from 2006 IPCC Guidelines, which was then applied to corresponding CO₂ values in this table."
• Volume 2, Chapter 4, p. 73, Table 4.2.4H(New), the EF values for “Sour gas (acid gas removal)” corrected:
  
  CO₂ to “66.6”, NMVOC to “0.1”; N₂O to “5.4E-05”
• Volume 2, Chapter 4, p. 73, footnote c, the text corrected to:
  
  “Emission factors from 2006 IPCC Guidelines, table 4.2.4."
• Volume 2, Chapter 4, p. 79, Table 4.2.4J(New), the EF values for “Short term storage (tonnes/million cubic meter of gas consumed)” corrected:
  
  CO₂ to “3.0E-05”, NMVOC to “9.3E-05”
• Volume 2, Chapter 4, p. 79, Table 4.2.4J(New), the EF values for “Short term storage (tonnes/million cubic meter of gas stored)” corrected:
  
  CO₂ to “0.05”, NMVOC to “0.16”
• Volume 2, Chapter 4, p. 79, Table 4.2.4J(New), the CO₂ EF value for “Town gas distribution: All” corrected to “1.8E-02”
  
  
• Volume 2, Chapter 4, p. 80, footnote c, the text corrected to:
  
  “CH₄ values from (Bender & Langer 2012) – CO₂ and NMVOC developed from the assumption of a CH₄ content of 90%, CO₂ content of 0.9% and a NMVOC content of 2.8%."
• Volume 2, Chapter 4, p. 82, Table 4.2.4K(New), the EF values for “Natural gas-fuelled vehicles” corrected:
  
  CH₄ to “3.0E-04”, CO₂ to “3.0E-06”, NMVOC to “9.3E-06”
• Volume 2, Chapter 4, p. 82, Table 4.2.4K(New), the EF values for “Appliances in commercial and residential sector” corrected:
  
  CH₄ to “3.2E-03”, CO₂ to “3.2E-05”, NMVOC to “1.0E-04”
• Volume 2, Chapter 4, p. 82, Table 4.2.4K(New), the EF values for “Leakage at industrial plants and power stations” corrected:
  
  CH₄ to “6.1”, CO₂ to “6.1E-02”, NMVOC to “1.9E-01”
• Volume 2, Chapter 4, p. 82, footnote a, the text corrected to:
  
  “CH₄ values from (Bender & Langer 2012), CO₂ and NMVOC developed using assumption of a CH₄ content of 90%, CO₂ content of 0.9% and a NMVOC content of 2.8%."
• Volume 2, Chapter 4, p. 82, footnote b, the text corrected to:
  
  “Medium value of table 4.2.8 of 2006 IPCC Guidelines (g) (appliances) – conversion with density of 0.72 kg/m³, a CH₄ content of 90%, a CO₂ content of 0.9% and a NMVOC content of 2.8%"
• Volume 2, Chapter 4, p. 82, footnote c, the text corrected to:
  
  “Value from the Revised 1996 IPCC Guidelines, Volume 3, table 1-58 (leakage at industrial plants and power stations) - conversion of 175,000 kg/PJ value with factor 35 MJ/m³, a CH₄ content of 90%, a CO₂ content of 0.9%, and a NMVOC content of 2.8%.
• Volume 2, Chapter 4, p. 133, Table 4A.2.6(New), the CH₄ and NMVOC EF values for “Without LDAR, or with limited LDAR, or less 50% of centrifugal compressors have dry seals” corrected to:
  
  “5%” for leaks, “95%” for vent, “0%” for flare
• Volume 2, Chapter 4, p. 133, Table 4A.2.6(New), the CH₄ and NMVOC EF values for “Extensive LDAR, and around 50% or more of centrifugal compressors have dry seals” corrected to:
  
  “4%” for leaks, “91%” for vent, “5%” for flare

 

 

 

 

Sandro FEDERICI
Head, Technical Support Unit

IPCC Task Force on National Greenhouse Gas Inventories

February 2023