Annex XVII
United Kingdom
The following Annex XXII is added:
ANNEX XXII
Activity-specific guidelines for the production of bulk organic chemicals as listed in Annex I to Directive 2003/87/EC
1.
BOUNDARIES AND COMPLETENESS
The activity-specific guidelines contained in this Annex shall be used to monitor emissions from the production of bulk organic chemicals as listed in Annex I to Directive 2003/87/EC. Where such production is technically integrated in a mineral oil refinery, the operator of such installation shall use the relevant provisions of Annex III instead, especially for emissions from catalytic crackers.
Installations for the production of bulk organic chemicals can be part of integrated installations in the chemical or refinery industry causing an intensive energy and material exchange. CO2 emissions may occur from combustion of fuels as well as from fuels or materials used as process input.
2.
DETERMINATION OF CO2 EMISSIONS
Potential emission sources for CO2 include fuels and input materials of the following processes:
cracking (catalytic and non-catalytic),
reforming,
partial or full oxidation,
similar processes which lead to CO2 emissions from carbon contained in hydrocarbon-based feedstock,
combustion of waste gases and flaring,
other combustion of fuel for supply of heat to the abovementioned processes.
2.1.
CALCULATION OF CO2 EMISSIONS
In case of combustion processes where the fuels used do not take part in or stem from chemical reactions for the production of bulk organic chemicals, e.g. for generating process heat or electricity, the emissions shall be monitored and reported pursuant to Section 2.1.1. In all other cases the emissions from bulk organic chemicals production shall be calculated using a mass-balance approach laid down in Section 2.1.2. All CO in the flue gas shall be accounted for as CO2. Based on the approval of the competent authority, an input-based approach such as presented in Annex II, taking into account industry best practice can be used instead of a mass-balance approach if the operator can show that this is more cost-efficient and leads to a comparable accuracy level.
2.1.1.
COMBUSTION EMISSIONS
Emissions from combustion processes shall be monitored and reported in accordance with Annex II. If waste gas scrubbing is carried out at the installation and the resulting emissions are not calculated using the mass balance pursuant to Section 2.1.2, they shall be calculated in accordance with Annex II.
2.1.2.
MASS-BALANCE APPROACH
The mass-balance approach shall consider all carbon in inputs, stocks, products and other exports from the installation to account for the emissions of greenhouse gases, except for emission sources monitored in accordance with Section 2.1.1 of this Annex. The following equation shall be used:
Emissions [t CO2] = (input – products – export – stock changes) * conversion factor CO2/C
With:
— input [t C]— products [t C] all carbon entering the boundaries of the installation,
— export [t C] all carbon in products and materials, including by-products, leaving the boundaries of the installation,
— stock changes [t C] carbon exported from the boundaries of the installation, e.g. discharged to sewer, deposited into landfill or through losses. Export does not include the release of greenhouse gases or carbon monoxide into the atmosphere,
stock increases of carbon within the boundaries of the installation.
The calculation shall then be as follows:
CO2 emissions [t CO2] = (Σ (activity datainput * carbon contentinput) – Σ (activity dataproducts * carbon contentproducts) – Σ (activity dataexport * carbon contentexport) – Σ (activity datastock changes * carbon contentstock changes)) * 3,664
With:
(a)
Activity data
The operator shall analyse and report the mass flows into and from the installation and respective stock changes for all relevant fuels and materials separately. Where the carbon content of a mass flow is usually related to energy content (fuels), the operator may determine and use the carbon content related to the energy content [t C/TJ] of the respective mass flow for the calculation of the mass balance.
Tier 1
Activity data over the reporting period are determined with a maximum uncertainty of less than ± 7,5 %.
Tier 2
Activity data over the reporting period are determined with a maximum uncertainty of less than ± 5,0 %.
Tier 3
Activity data over the reporting period are determined with a maximum uncertainty of less than ± 2,5 %.
Tier 4
Activity data over the reporting period are determined with a maximum uncertainty of less than ± 1,5 %.
(b)
carbon content
Tier 1
The carbon content of input or output streams shall be derived from reference emission factors for fuels or materials listed in Section 11 of Annex I, in the Table below or in other activity-specific Annexes to these Guidelines. The carbon content is derived as follows:
C content [t/t or TJ] = Emission factor [t CO2/t or TJ]/3,664 [t CO2/t C]
For substances not listed in Section 11 of Annex I or in other activity-specific Annexes to these Guidelines, operators may calculate the carbon content from the stoichiometric carbon content in the pure substance and the concentration of the substance in the input or output stream.
Table
Reference Emission Factors f1
See IPCC 2006 Guidelines for National Greenhouse Gas Inventories.
Substance Carbon content (t C/t feedstock or t C/t product) Acetonitril 0,5852 t C/t Acrylonitrile 0,6664 t C/t Butadiene 0,888 t C/t Carbon Black 0,97 t C/t Ethylene 0,856 t C/t Ethylene dichloride 0,245 t C/t Ethylene glycol 0,387 t C/t Ethylene oxide 0,545 t C/t Hydrogen cyanide 0,4444 t C/t Methanol 0,375 t C/t Methane 0,749 t C/t Propane 0,817 t C/t Propylene 0,8563 t C/t Vinyl chloride monomer 0,384 t C/t Tier 2
The operator applies country-specific carbon content for the respective fuel or material as reported by the respective Member State in its latest national inventory submitted to the Secretariat of the United Nations Framework Convention on Climate Change.
Tier 3
The carbon content of input or output stream shall be derived following the provisions of Section 13 of Annex I in respect to representative sampling of fuels, products and by-products, the determination of their carbon contents and biomass fraction.
2.2.
MEASUREMENT OF CO2 EMISSIONS
The measurement guidelines contained in Annexes I and XII shall be applied.
Annotations
Footnotes
- f1
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See IPCC 2006 Guidelines for National Greenhouse Gas Inventories.