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Continuous
MERCURY Emission Monitoring With
SM-4MERCURY CEMsMERCURY CEMs
Jürgen ReinmannManaging Director
SOx NOx 2019, New Delhi, 12.09.2019
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• World leader in continuous measurement solutions of air quality, emissions & monitoring of industrial processes since 1978
• More than 700 employees worldwide
• Sustainable growth (annual average of 10%)
The envea group
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• Sustainable growth (annual average of 10%)
• 7 European research centers – an annual investment >6M€
• France: Poissy, Biarritz
• UK: Cambridge, Manchester
• Germany: Frankfurt, Schliengen, Munich
• Listed on Euronext Growth® since January 2006
• envea™ a brand of the Group that unites its technologies
.
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• More than 20 000 m² of manufacturing area in Europe
• France: gas & particle analyzers; micro-sensors; data acquisition & processing
• UK: laser analyzers; dust & gas flow measuring systems
• Germany: mercury analyzers; continuous samplers (dioxin, mercury & biogenic
The envea group
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• Germany: mercury analyzers; continuous samplers (dioxin, mercury & biogenic CO2); sensors for solid flow, level, humidity
France: Poissy, Biarritz UK: Cambridge, Manchester Germany: Frankfurt, Schliengen, Munich
ENVEA can supply complete CEMs packages and AQMS with own products !
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• More than 20 000 m² of manufacturing area in Europe
• France: gas & particle analyzers; micro-sensors; data acquisition & processing
• UK: laser analyzers; dust & gas flow measuring systems
The envea group
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• Germany: mercury analyzers; continuous samplers (dioxin, mercury & biogenic CO2); sensors for solid flow, level, humidity
• Subsidiaries in India, China, Italy and USA
• plus distributors in around 70 countries
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envea Mercury Instruments has more than 20 years of experiences in mercury analysis
Manufacturer of Hg-CEMs, Hg-Air Quality
Mercury Instruments GmbH is part of the enveaTM group since January 2018
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Manufacturer of Hg-CEMs, Hg-Air Quality
Monitoring stations, Hg analysers for indoor air quality control, Hg water analyser, natural
gas Hg-analyser
We are located nearby Munich in Germany.
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Emissions
Mercury - Facts
EU Hg Emissions in the year 2009
Combustion plants (> 50 MWth): 16,1 tSteel plants: 4,3 t
Cement kilns: 3,3 t
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Others: 7,6 t______________________________
Total: 31,3 t
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MATS – Mercury Air Toxic Standards
Portland Cement Plants Power Plants
Mercury - Regulations - USA
Hg-Monitoring according PS 12 A (Hg-CEMs) or PS 12 B (STMS)Limit value: around 1,5 ug/m3 as monthly average
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Mercury - Regulations – Europe
Fuel New Plants [µ/m3] Existing Plants[µ/m3]
Coal < 1 - 2 < 1 - 4
BAT reference document for Large Combustion PlantsJuly 2017
In the conclusion of the BREF documents are fixed for large combustion plants (anthracite and lignite, > 300 MWth) as yearly Associated Emission Levels (as BAT-AEL*) the following concentrations:
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Coal < 1 - 2 < 1 - 4
Lignite < 1 - 4 < 1 - 7
The emissions should be determined by continuous monitoring.Continuous monitoring by Sorbent trap sampling can be used as an alternative!
⇒ For both, the US and the coming EU regulation it is necessary to have monitoring systems which are able to measure accurate in the range 1 – 5 µg/Nm3.
*BAT-AEL = BAT associated emission levels
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Mercury - Regulations – Europe
BAT Reference Document for Waste IncinerationDecember 2018 (Final Draft)
In the conclusion of the BREF documents are fixed for waste incinerators the following BAT- Associated Emission Levels (as BAT-AEL*):
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India:
Guidelines for Continuous
Emission Monitoring Systems
Mercury – Regulations in India
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Table 7: Parameter specific Emission Standards for industries need to install CEMS
Mercury – Regulations in India
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Our Solution : Mercury Stack Monitor SM-4
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Which industries use the SM-4?
Coal fired power plantsCoal fired power plantsCoal fired power plantsCoal fired power plants
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SM-4: Schematic Flow Diagram� DiluterDiluterDiluterDiluter
� Function: dilution of the flue gas to reduce cross
interferences
� Mercury Converter:Mercury Converter:Mercury Converter:Mercury Converter:
� Function: convert ionic Hg & bound Hg into the
elemental form for final detection – directly after the probe
= ADVANTAGE as from this point no heated line is necessary
to transport the flue gas to the analyzer to transport the flue gas to the analyzer
� Mercury Detector:Mercury Detector:Mercury Detector:Mercury Detector:
� quantitative measurement of Hg by Atomic Absorption (AA)
� Features:Features:Features:Features:
� high efficiency for all forms of Hg
� no loss of efficiency by matrix components
� long life
� no alteration by sample matrix
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SM-4: Schematic Flow Diagram� Mercury Detector:Mercury Detector:Mercury Detector:Mercury Detector:
� quantitative measurement of Hg by Atomic Absorption (AA)
� Advantages:Advantages:Advantages:Advantages:
� high selectivity & sensitivity
� rugged design for industrial applications
� reliable trouble-free operation
� no carrier gases required (as e.g. by Atomic Fluorescence � no carrier gases required (as e.g. by Atomic Fluorescence
Spectrometry – AFS)
� minimum service demand
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Maintenance demand for the SM-4
� Routine maintenance:Routine maintenance:Routine maintenance:Routine maintenance:
� Maintenance interval: 6 Month, Time needed 4-6 h
� Lifetime of catalyst: 1 year (depending on sample matrix)
� Analyzer test and maintenance is easy:
� Dust filter, dilution system and catalyst are easy accessible, filter & catalyst can be
changed without big effort and within a short time.
� If needed, the probe can be purged without removal.
� During dismantling of the converter the probe tube can stay at the stack, only the converter
module has to be moved.
� The tubing inside of the sample line can be exchanged.
� There is no very hot part, which needs to cool down before any service work can be started
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Converter Cover removed
Probe &Converter
Probe Controller
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Converter with Dilution Unit & Catalyst openedUnit & Catalyst opened
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Swing Frame for Easy Access of Modules
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Mercury speciation capability
� What are the Different Forms of Mercury?What are the Different Forms of Mercury?What are the Different Forms of Mercury?What are the Different Forms of Mercury?
� Elemental Mercury Elemental Mercury Elemental Mercury Elemental Mercury (pure Hg): the most volatile & dominant form of Hg in the
atmosphere; released by combustion sources, like coal-fired power plants and
incinerators.incinerators.
� Ionic Mercury Ionic Mercury Ionic Mercury Ionic Mercury (or reactive Hg or oxidized Hg – formed in the atmosphere from elemental
Hg vapor: also directly emitted through combustion of coal and mercury-bearing waste
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40
50
60
Hg
[u
g/m
³]
SM-4 Speciated Mercury Measurements at Hagerstown Cement Plant
Hg total
Hg elemental
Hg oxidised
SM-4: Mercury speciation capability
The optional available speciation function
can be used e.g. for the optimization of the
FGD
= ADVANTAGE, specific in comparison to
systems without catalyst (e.g. by high
temperature converter with included
detector)
0
10
20
30
Hg
[u
g/m
³]
11. October 2012 - 05. November 2012
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detector)
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Version SM-4 Mobile for flexible use
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Automatic Quality Control
� The integrated calibration gas generator
Hg vaporizer Controller for mercury calibrator
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Probe & Converter
Probe Controller
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SM-4 Certificates
� QAL1QAL1QAL1QAL1
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Measuring in raw gas of communal waste incinerator for dosing
the sorbent material
Waste Furnace
Hg raw gas measurement
Spray absorber
Fabric filter DeNOx catalyst
Hg clean gas measurement
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� The SMThe SMThe SMThe SM----4 output signal is used to control of dosing the Hg4 output signal is used to control of dosing the Hg4 output signal is used to control of dosing the Hg4 output signal is used to control of dosing the Hg----sorbentsorbentsorbentsorbentRaw gas of waste incineratort
Increase of Hg in raw gas & in clean gas after a short time. When reaching a stored threshold the automated
dosing of a sorbent increases to 100% (=20 kg/h activated carbon). With this action the limit value for clean gas
will not be passed.
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SM-4 Certificates: RATA Test at US plant
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Tableau comparatif des essaisEssai 1 2 3 4 5 6
Sur Sec
28.11.2017 28.11.2017 28.11.2017 29.11.2017 29.11.2017 29.11.20179h52 à 11h54 12h15 à 14h15 14h25 à 16h25 9h05 à 11h05 11h18 à 13h20 13h30 à 15h30
amont sec aval sec amont sec aval sec amont sec aval sec amont sec aval sec amont sec aval sec amont sec aval secµg/Nm3 µg/Nm3 µg/Nm3 µg/Nm3 µg/Nm3 µg/Nm3 µg/Nm3 µg/Nm3 µg/Nm3 µg/Nm3 µg/Nm3 µg/Nm3
Mercury instruments
67,3 2,8 86,5 2,1 31,6 2,9 50,9 0,7 453,6 201,0 139,2 60,1
AMESA M 2,7
LABO MPT 29,0 16,9 92,0 4,6 186,0 0,7 34,9 2,9 3736,0 243,1 1133,0 156,1LABO SGS 9,3 7,0 14,9 2,8 28,8 0,8 5,3 1,6 2543,0 221,0 803,0 159,0
SM-4 tests in Rennes, raw & clean gas
LABO SGS 9,3 7,0 14,9 2,8 28,8 0,8 5,3 1,6 2543,0 221,0 803,0 159,0H2O Moyen % 17,9 16,2 18,3 16,6 17,3 15,5 14,0 12,6 15,1 13,5 16,3 14,8
Essai 1 2 3 4 5 6
11% d'O2
28.11.2017 28.11.2017 28.11.2017 29.11.2017 29.11.2017 29.11.20179h52 à 11h54 12h15 à 14h15 14h25 à 16h25 9h05 à 11h05 11h18 à 13h20 13h30 à 15h30
amont sec aval sec amont sec aval sec amont sec aval sec amont sec aval sec amont sec aval sec amont sec aval secµg/Nm3 µg/Nm3 µg/Nm3 µg/Nm3 µg/Nm3 µg/Nm3 µg/Nm3 µg/Nm3 µg/Nm3 µg/Nm3 µg/Nm3 µg/Nm3
Mercury instruments
54,3 3,0 68,6 2,2 25,4 3,0 52,3 1,0 404,7 235,7 111,4 62,6
AMESA M 2,8
LABO MPT 23,4 17,9 72,9 4,7 149,5 0,8 35,9 3,9 3332,7 284,9 906,4 162,6LABO SGS 7,5 7,4 11,8 2,9 23,2 0,8 5,4 2,2 2268,5 259,1 642,4 165,6O2 Moyen % 8,6 11,5 8,4 11,4 8,6 11,6 11,3 13,6 9,8 12,5 8,5 11,4
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Mercury Emission Measurement Methods
In several documents as e.g. US MATS, European BREF there are also mentioned Sorbent Trap Monitoring Systems (STMS) as alternative for Mercury Emission Monitoring
In the ENVEA group we have also such a system to offer as AMESA M.
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By more and more countries, which sign and ratify the Minamata Convention, the necessary actions to reduce and therefore to monitor mercury emissions increase
According to the Guidelines for Continuous Emission Monitoring Systems published in
August 2019 by the Central Pollution Control Board of India, the continuous emission monitoring of Hg emissions has to be implemented in Power Plants.
The Emission Limit value is defined to 0,03 mg/Nm3
The SM-4 Hg-CEM system is suitable for this application
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The SM-4 Hg-CEM system is suitable for this application
Due to the dilution directly by the sampling probe it is quite robust against aggresive flue
gas conditions
With the MATS rules in the USA and the future BREF documents in the EU also Long
Term Sampling can be used for an accurate determination of mercury emissions of mainly
power plants and cement kilns and also waste incinerators
We as envea have both technologies in our product range
We have also the experts to support you in your emission monitoring requirements
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Thanks a lot for your attention !
Jürgen ReinmannJürgen Reinmann
Managing Director – envea Mercury Instruments GmbH -Germany