MERCEM300Z Intelligent mercury monitoring Florian Greiter, Produkt Management

MERCEM300Z – Table of contents System components and measuring principle Test results and certification Summary Bei Beweggründe auf alle Fälle die Applikationen mit erwähnen. : Florian Greiter, Product Management

MERCEM300Z – Overall system Gas sampling system : Our solution – high temperature Bundle of pipes Control of main valve Electrical connections Heated sample gas line Exhaust air : Florian Greiter, Product Management

MERCEM300Z – Sample gas supply Ejector Sample gas line : Florian Greiter, Product Management

MERCEM300Z – Gas flow diagram Ejector Exhaust gas Ejector air Cell Nozzle Pressure control for flow control Cell 1000°C Optics Sample probe CALSIC300 Nozzle Filter Sample gas line Evaporator : Florian Greiter, Product Management

MERCEM300Z – Sample gas supply MERCEM300Z Ejector principle Advantages: No moving parts Wear-free Flow control via pressure sensors High gas flow results in short response time Benefits  Very low operating expenses Measuring certainty due to control Longest certified measuring gas line with 35m : Florian Greiter, Product Management

MERCEM300Z - Design High temperature cell : Florian Greiter, Product Management

MERCEM300Z – Hg - Conversion All optical measuring principles are based on the measurement of elemental mercury (Hg0) !  Conversion of mercury compounds (Hg+) to elemental mercury (Hg0) Wet chemistry: HgCl2 + SnCl2 -> Hg0 + SnCl4 Thermo converter: approx. 200-400°C High temperature: from approx. 800°C SICK: ~ 1000°C : Florian Greiter, Product Management

MERCEM300Z – Hg - Conversion High temperature conversion Heated quartz cell (1000 °C) Double walled Sample gas outlet High temperature 1000 °C Sample gas inlet = HgCl2 = Hg HgCl2 + High temperature  Hg0 + Cl2 : Florian Greiter, Product Management

MERCEM300Z – Design Optical unit : Florian Greiter, Product Management

MERCEM300Z – Measuring principle Hg How to determine the concentration? I0 I Light source Lichtquelle Measuring path Detector Reference signal Measuring signal Absorption spectrum elemental Hg 1000°C Conc ~ I0 / I Atomic absorption spectroscopy Absorption I0 I Wave length / nm : Florian Greiter, Product Management

MERCEM300Z – Measuring principle Zeeman Atomabsorptionsspektroskopie Absorption spectrum Hg0 Detector Polarizer Chronological differentiation of the signals: 2µs Photo elastic modulator (50kHz) s- s+ Light waves of different polarization B Light source Hg – light source : Florian Greiter, Product Management

MERCEM300Z – Measuring principle Advantages of Zeeman - AAS Continuous measuring method No moving parts  No mechanical wear  Long-term stability (Maintenance cycle of light source: ≥ 1 year) Automatic drift correction for Light source modifications Contamination of optical surfaces Identical influence of cross sensitivity components on measuring and reference signal  Best possible cross sensitivity correction s- s+ B Hg - Lichtquelle : Florian Greiter, Product Management

MERCEM300Z – Measuring principle Influence of cross sensitivities; e.g. SO2 measuring wave lengths : Florian Greiter, Product Management

MERCEM300Z – Measuring principle Influence of cross sensitivities; e.g. SO2 measuring wave lengths : Florian Greiter, Product Management

MERCEM300Z – Measuring principle Influence of cross sensitivities; e.g. SO2 Wave length of measuring and reference signal are almost identical  The interference caused by cross sensitivity components stays constant within the wave length interval!  Thus the cross sensitivity is immediately compensated. measuring wave lengths : Florian Greiter, Product Management

MERCEM300Z – Measuring principle Influence of cross sensitivities (results from type approval) Component Concentration Cross sensitivities on Hg SO2 1000 mg/m³ - 0.065 µg/m³ H2O 30 Vol% 0.060 µg/m³ HCl 200 mg/m³ no CS NO 300 mg/m³ no CS NO2 30 mg/m³ 0.090 µg/m³ O2 21 Vol-% - 0.120 µg/m³ All other tested cross sensitivities are below ± 0.05 µg/m³ = <0.5% certification range : Florian Greiter, Product Management

MERCEM300Z – Measuring principle MERCEM300Z measuring principle: Zeemann AAS Advantages: Continuous measurement No moving parts Automatic drift correction Best possible cross sensitivity correction Benefits Easy design – Easy access, no black box  Very low operating expenses : Florian Greiter, Product Management

MERCEM300Z – Patented extractive direct measurement Measurement within heated cell of about 1.000 °C Advantages No Hg – recombination No memory effects Continuous monitoring of total Hg Benefits Reliable monitoring of total Hg independent from plant conditions Measuring certainty : Florian Greiter, Product Management

MERCEM300Z – Internal adjustment Optical unit : Florian Greiter, Product Management

MERCEM300Z – Internal adjustment MERCEM300Z Integrated Adjustment Cell Generation of a defined long-term stable Hg - signal with adjustment cell (patent pending) Advantages No test gas required Automatic drift control Full adjustment of optical bench Benefits Measuring certainty Saves operational expenses due to drift control without test gas : Florian Greiter, Product Management

MERCEM300Z – Test gas generator Vaporizer Sample gas line CALSIC300 : Florian Greiter, Product Management

MERCEM300Z – Test gas generator CALSIC300 (option) Vaporization of liquid HgCl2-solution of known concentration Realization as automated span gas function Three predefined span concentrations possible Automatic injection before sampling filter unit : Florian Greiter, Product Management

MERCEM300Z – CALSIC300 MERCEM300Z – CALSIC300 Advantages Benefits Adjustment of overall system Fully automated QAL3 function included Check of conversion rate included Benefits Measuring certainty due to check of overall system Saves operational costs: No additional costs for test equipment, e.g. test gas, Hovacal …. No additional costs for technician : Florian Greiter, Product Management

MERCEM300Z – Adjustment during field test Adjustment cell High Middle Low : Florian Greiter, Product Management

MERCEM300Z – Cabinet MERCEM300Z System housing Advantages Benefits Standardized setup Easy to maintain Full air conditioning (-20 to +50°C) Protection grade IP55 Dimensions: H W D 1800mm x 1050mm x 745mm Weight: approx. 250 kg Benefits Convenient and fast access for easy service Stable measuring results in harsh and/or difficult ambient conditions : Florian Greiter, Product Management

MERCEM300Z - Design High temperature cell Ejector Optical unit Electronics CALSIC300 : Florian Greiter, Product Management

MERCEM300Z – Table of contents System components and measuring principle Test results and certification Summary Bei Beweggründe auf alle Fälle die Applikationen mit erwähnen. : Florian Greiter, Product Management

MERCEM300Z – Certification : Florian Greiter, Product Management

MERCEM300Z – Certification : Florian Greiter, Product Management

MERCEM300Z – Type approval Type approval according to EN15267 Approved measuring ranges: 0-10/45/100/1000 µg/m³ Lowest approved measuring range for mercury analyzer: 0 – 10 µg/m³ Highest approved measuring range for mercury analyzer: 0 – 1000 µg/m³ Unique maintenance interval: 6 months! Unique type approved system which is certified to monitor mercury at all relevant plant types (waste incineration, power plants and cement plants) Successful implementation of system at 3 plants where no other mercury monitoring system could be calibrated Cement plant (Germany) Lime plant (Rheinkalk) Germany Sinter metal plant : Florian Greiter, Product Management

MERCEM300Z – Type approval : Florian Greiter, Product Management

Raw gas monitoring: waste incineration plant Raw gas monitoring at a waste incineration plant Hg- Concentrations between 500 µg – 4000 µg No change in system setup Uninterrupted operation since 4 months Adjustment with internal CALSIC300 : Florian Greiter, Product Management

MERCEM300Z – Table of contents System components and measuring principle Test results and certification Summary Bei Beweggründe auf alle Fälle die Applikationen mit erwähnen. : Florian Greiter, Product Management

MERCEM300Z – Summary MERCEM300Z Features Benefits Precise measurement of “total mercury” directly in a thermal converter (patented) Measuring operation without using consumables Very low maintenance gas sampling using an ejector pump – no moving parts Integrated adjustment cell for automatic drift correction Benefits  Reliable results of the actual measuring values of elemental Hg and Hg- compounds in gases  Very low operating expenses  Minimum maintenance expenditure  Long-term stability without the need of a technician due to self – adjusting measuring system : Florian Greiter, Product Management

MERCEM300Z – Summary MERCEM300Z Features Benefits Automatic adjustment of the entire measuring system with a built-in test gas generator (optional) Modular design with the entire system Rugged housing for use in harsh industrial environments Benefits  Measuring certainty using the fully automated adjustment with test gas  Convenient and fast access for easy service and user-friendly remote diagnosis  Stable measuring results in harsh and/or difficult ambient conditions : Florian Greiter, Product Management

MERCEM300Z MERCEM300Z – Questions ? Innovative mercury monitoring : Florian Greiter, Product Management