INHALT

Commission Implementing Decision (EU) 2022/2427 of 6 December 2022 establishing the best available techniques (BAT) conclusions, under Directive 2010/75/EU of the European Parliament and of the Council on industrial emissions, for common waste gas management and treatment systems in the chemical sector (notified under document C(2022) 8788) (Text with EEA relevance)

COMMISSION IMPLEMENTING DECISION (EU) 2022/2427
of 6 December 2022
establishing the best available techniques (BAT) conclusions, under Directive 2010/75/EU of the European Parliament and of the Council on industrial emissions, for common waste gas management and treatment systems in the chemical sector
(notified under document C(2022) 8788)
(Text with EEA relevance)
Article 1
Article 2
ANNEX
1.
Best Available Techniques (BAT) conclusions for Common Waste Gas Management and Treatment Systems in the Chemical Sector
SCOPE
DEFINITIONS
ACRONYMS
GENERAL CONSIDERATIONS
Best Available Techniques
Emission levels associated with the best available techniques (BAT-AELs) and indicative emission levels for channelled emissions to air
BAT-AELs for diffuse VOC emissions to air
BAT-AELs for total emissions to air for the production of polymers or synthetic rubbers
Production of polyolefins or synthetic rubbers
Production of PVC
Production of viscose
1.1.
General BAT conclusions
1.1.1.
Environmental management systems
BAT 1.
In order to improve the overall environmental performance, BAT is to elaborate and implement an environmental management system (EMS) that incorporates all of the following features:
Note
Applicability
BAT 2.
In order to facilitate the reduction of emissions to air, BAT is to establish, maintain and regularly review (including when a substantial change occurs) an inventory of channelled and diffuse emissions to air, as part of the environmental management system (see BAT 1), that incorporates all of the following features:
Note for diffuse emissions
Applicability
1.1.2.
Other than normal operating conditions (OTNOC)
BAT 3.
In order to reduce the frequency of the occurrence of OTNOC and to reduce emissions to air during OTNOC, BAT is to set up and implement a risk-based OTNOC management plan as part of the environmental management system (see BAT 1) that includes all of the following features:
1.1.3.
Channelled emissions to air
1.1.3.1.
General techniques
BAT 4.
In order to reduce channelled emissions to air, BAT is to use an integrated waste gas management and treatment strategy that includes, in order of priority, process-integrated recovery and abatement techniques.
Description
BAT 5.
In order to facilitate the recovery of materials and the reduction of channelled emissions to air, as well as to increase energy efficiency, BAT is to combine waste gas streams with similar characteristics, thus minimising the number of emission points.
Description
BAT 6.
In order to reduce channelled emissions to air, BAT is to ensure that the waste gas treatment systems are appropriately designed (e.g. considering the maximum flow rate and pollutant concentrations), operated within their design ranges, and maintained (through preventive, corrective, regular and unplanned maintenance) so as to ensure optimal availability, effectiveness and efficiency of the equipment.
1.1.3.2.
Monitoring
BAT 7.
BAT is to continuously monitor key process parameters (e.g. waste gas flow and temperature) of waste gas streams being sent to pretreatment and/or final treatment.
BAT 8.
BAT is to monitor channelled emissions to air with at least the frequency given below and in accordance with EN standards. If EN standards are not available, BAT is to use ISO, national or other international standards that ensure the provision of data of an equivalent scientific quality.
1.1.3.3.
Organic compounds
BAT 9.
In order to increase resource efficiency and to reduce the mass flow of organic compounds sent to the final waste gas treatment, BAT is to recover organic compounds from process off-gases by using one or a combination of the techniques given below and to reuse them.
Applicability
BAT 10.
In order to increase energy efficiency and to reduce the mass flow of organic compounds sent to the final waste gas treatment, BAT is to send process off-gases with a sufficient calorific value to a combustion unit that is, if technically possible, combined with heat recovery. BAT 9 has priority over sending process off-gases to a combustion unit.
Description
Applicability
BAT 11.
In order to reduce channelled emissions to air of organic compounds, BAT is to use one or a combination of the techniques given below.
BAT 12.
In order to reduce channelled emissions to air of PCDD/F from thermal treatment of waste gases containing chlorine and/or chlorinated compounds, BAT is to use techniques a. and b., and one or a combination of techniques c. to e., given below.
1.1.3.4.
Dust (including PM
10
and PM
2,5
) and particulate-bound metals
BAT 13.
In order to increase resource efficiency and to reduce the mass flow of dust and particulate-bound metals sent to the final waste gas treatment, BAT is to recover materials from process off-gases by using one or a combination of the techniques given below and to reuse them.
Applicability
BAT 14.
In order to reduce channelled emissions to air of dust and particulate-bound metals, BAT is to use one or a combination of the techniques given below.
1.1.3.5.
Inorganic compounds
BAT 15.
In order to increase resource efficiency and to reduce the mass flow of inorganic compounds sent to the final waste gas treatment, BAT is to recover inorganic compounds from process off-gases by using absorption and to reuse them.
Description
Applicability
BAT 16.
In order to reduce channelled emissions to air of CO, NO
X
and SO
X
from thermal treatment, BAT is to use technique c. and one or a combination of the other techniques given below.
BAT 17.
In order to reduce channelled emissions to air of ammonia from the use of selective catalytic reduction (SCR) or selective non-catalytic reduction (SNCR) for the abatement of NO
X
emissions (ammonia slip), BAT is to optimise the design and/or operation of SCR or SNCR (e.g. optimised reagent to NO
X
ratio, homogeneous reagent distribution and optimum size of the reagent drops).
BAT 18.
In order to reduce channelled emissions to air of inorganic compounds other than channelled emissions to air of ammonia from the use of selective catalytic reduction (SCR) or selective non-catalytic reduction (SNCR) for the abatement of NO
X
emissions), channelled emissions to air of CO, NO
X
and SO
X
from the use of thermal treatment, and channelled emissions to air of NO
X
from process furnaces/heaters, BAT is to use one or a combination of the techniques given below.
1.1.4.
Diffuse VOC emissions to air
1.1.4.1.
Management system for diffuse VOC emissions
BAT 19.
In order to prevent or, where that is not practicable, to reduce diffuse VOC emissions to air, BAT is to elaborate and implement a management system for diffuse VOC emissions, as part of the environmental management system (see BAT 1), that includes all of the following features:
Applicability
1.1.4.2.
Monitoring
BAT 20.
BAT is to estimate fugitive and non-fugitive VOC emissions to air separately at least once every year by using one or a combination of the techniques given below, as well as to determine the uncertainty of this estimation. The estimation distinguishes between VOCs classified as CMR 1A or 1B and VOCs that are not classified as CMR 1A or 1B.
Note
BAT 21.
BAT is to monitor diffuse VOC emissions from the use of solvents by compiling, at least once every year, a solvent mass balance of the solvent inputs and outputs of the plant, as defined in Part 7 of Annex VII to Directive 2010/75/EU and to minimise the uncertainty of the solvent mass balance data by using all of the techniques given below.
Applicability
BAT 22.
BAT is to monitor diffuse VOC emissions to air with at least the frequency given below and in accordance with EN standards. If EN standards are not available, BAT is to use ISO, national or other international standards that ensure the provision of data of an equivalent scientific quality.
Note
Applicability
1.1.4.3.
Prevention or reduction of diffuse VOC emissions
BAT 23.
In order to prevent or, where that is not practicable, to reduce diffuse VOC emissions to air, BAT is to use a combination of the techniques given below with the following order of priority.
Note
1.1.4.4.
BAT conclusions for the use of solvents or the reuse of recovered solvents
1.2.
Polymers and synthetic rubbers
1.2.1.
BAT conclusions for the production of polyolefins
BAT 24.
BAT is to monitor the TVOC concentration in polyolefin products, at least once every year for each representative polyolefin grade produced during the same year, in accordance with EN standards. If EN standards are not available, BAT is to use ISO, national or other international standards that ensure the provision of data of an equivalent scientific quality.
Note
Applicability
BAT 25.
In order to increase resource efficiency and to reduce emissions to air of organic compounds, BAT is to use all of the techniques given below, as far as applicable.
1.2.2.
BAT conclusions for the production of polyvinyl chloride (PVC)
BAT 26.
BAT is to monitor channelled emissions to air with at least the frequency given below and in accordance with EN standards. If EN standards are not available, BAT is to use ISO, national or other international standards that ensure the provision of data of an equivalent scientific quality.
BAT 27.
BAT is to monitor the residual vinyl chloride monomer concentration in PVC slurry/latex, at least once every year for each representative PVC grade produced during the same year, in accordance with EN standards.
Note
BAT 28.
In order to increase resource efficiency and to reduce the mass flow of organic compounds sent to the final waste gas treatment, BAT is to recover the vinyl chloride monomer from process off-gases by using one or a combination of the techniques given below, and to reuse the recovered monomer.
Applicability
BAT 29.
In order to reduce channelled emissions to air of vinyl chloride monomer from the recovery of vinyl chloride monomer, BAT is to use one or a combination of the techniques given below.
BAT 30.
In order to reduce emissions to air of vinyl chloride monomer, BAT is to use all of the techniques given below.
1.2.3.
BAT conclusions for the production of synthetic rubbers
BAT 31.
BAT is to monitor the TVOC concentration in synthetic rubbers, at least once every year for each representative synthetic rubber grade produced during the same year, in accordance with EN standards. If EN standards are not available, BAT is to use ISO, national or other international standards that ensure the provision of data of an equivalent scientific quality.
Note
Applicability
BAT 32.
In order to reduce emissions to air of organic compounds, BAT is to use one or a combination of the techniques given below.
1.2.4.
BAT conclusions for the production of viscose using CS
2
BAT 33.
BAT is to monitor channelled emissions to air with at least the frequency given below and in accordance with EN standards. If EN standards are not available, BAT is to use ISO, national or other international standards that ensure the provision of data of an equivalent scientific quality.
BAT 34.
In order to increase resource efficiency and to reduce the mass flow of CS
2
and H
2
S sent to the final waste gas treatment, BAT is to recover CS
2
by using technique a. and/or technique b. or a combination of technique c. with technique(s) a. and/or b., given below and to reuse the CS
2
, or, alternatively, to use technique d.
BAT 35.
In order to reduce channelled emissions to air of CS
2
and H
2
S, BAT is to use one or a combination of the techniques given below.
1.3.
Process furnaces/heaters
BAT 36.
In order to prevent or, where that is not practicable, to reduce channelled emissions to air of CO, dust, NO
X
and SO
X
, BAT is to use technique c. and one or a combination of the other techniques given below.
1.4.
Description of techniques
1.4.1.
Techniques to reduce channelled emissions to air
1.4.2.
Techniques to monitor diffuse emissions to air
1.4.3.
Techniques to reduce diffuse emissions