MERCEM 300 Z Intelligent mercury monitoring

MERCEM 300 Z Intelligent mercury monitoring : : Florian Greiter, Produkt Management

MERCEM 300 Z – Table of contents : System components and measuring principle : Test results and certification : Summary : SICK AG : Confidential : Florian Greiter, Product Management 2

MERCEM 300 Z – Overall system : Our solution – high temperature Gas sampling system Bundle of pipes Control of main valve Electrical connections Heated sample gas line Exhaust air : SICK AG : Confidential : Florian Greiter, Product Management 3

MERCEM 300 Z – Sample gas supply Ejector Sample gas line : SICK AG : Confidential : Florian Greiter, Product Management 4

MERCEM 300 Z – Gas flow diagram Ejector Exhaust gas Ejector air Nozzle Cell 1000°C Pressure control for flow control Optics Sample probe CALSIC 300 Nozzle Sample gas line Filter Evaporator : SICK AG : Confidential : Florian Greiter, Product Management 5

MERCEM 300 Z – Sample gas supply : MERCEM 300 Z 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 35 m : SICK AG : Confidential : Florian Greiter, Product Management 6

MERCEM 300 Z - Design High temperature cell : SICK AG : Confidential : Florian Greiter, Product Management 7

MERCEM 300 Z – Hg - Conversion All optical measuring principles are based on the measurement of elemental mercury (Hg 0) ! Conversion of mercury compounds (Hg+) to elemental mercury (Hg 0) - Wet chemistry: Hg. Cl 2 + Sn. Cl 2 -> Hg 0 + Sn. Cl 4 - Thermo converter: approx. 200 -400°C - High temperature: from approx. 800°C SICK: ~ 1000°C : SICK AG : Confidential : Florian Greiter, Product Management 8

MERCEM 300 Z – Hg - Conversion : High temperature conversion - Heated quartz cell (1000 °C) Sample gas outlet Sample gas inlet - Double walled High temperature = Hg. Cl 2 1000 °C = Hg Hg. Cl 2 + High temperature Hg 0 + Cl 2 : SICK AG : Confidential : Florian Greiter, Product Management 9

MERCEM 300 Z – Design Optical unit : SICK AG : Confidential : Florian Greiter, Product Management 10

MERCEM 300 Z – Measuring principle How to determine the concentration? Hg I 0 Lichtquelle Light source I Detector Measuring path Reference signal Measuring signal Absorption spectrum Conc ~ I 0 / I elemental Hg Atomic absorption spectroscopy Absorption 1000°C I 0 I Wave length / nm : SICK AG : Confidential : Florian Greiter, Product Management 11

MERCEM 300 Z – Measuring principle Zeeman Atomabsorptionsspektroskopie Absorption spectrum Hg 0 Detector Polarizer Chronological differentiation of the signals: 2µs Photo elastic modulator (50 k. Hz) s- s+ Light waves of different polarization B Light source Hg – light source : SICK AG : Confidential : Florian Greiter, Product Management 12

MERCEM 300 Z – 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) s- B - Automatic drift correction for ▪ Light source modifications ▪ s+ Contamination of optical surfaces Hg - Lichtquelle - Identical influence of cross sensitivity components on measuring and reference signal Best possible cross sensitivity correction : SICK AG : Confidential : Florian Greiter, Product Management 13

MERCEM 300 Z – Measuring principle : Influence of cross sensitivities; e. g. SO 2 measuring wave lengths : SICK AG : Confidential : Florian Greiter, Product Management 14

MERCEM 300 Z – Measuring principle : Influence of cross sensitivities; e. g. SO 2 measuring wave lengths : SICK AG : Confidential : Florian Greiter, Product Management 15

MERCEM 300 Z – Measuring principle : Influence of cross sensitivities; e. g. SO 2 measuring wave lengths : 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. : SICK AG : Confidential : Florian Greiter, Product Management 16

MERCEM 300 Z – Measuring principle : Influence of cross sensitivities (results from type approval) Component SO 2 Concentration 1000 mg/m³ Cross sensitivities on Hg - 0. 065 µg/m³ H 2 O 30 Vol% 0. 060 µg/m³ HCl 200 mg/m³ no CS NO 300 mg/m³ no CS NO 2 30 mg/m³ 0. 090 µg/m³ O 2 21 Vol-% - 0. 120 µg/m³ All other tested cross sensitivities are below ± 0. 05 µg/m³ = <0. 5% certification range : SICK AG : Confidential : Florian Greiter, Product Management 17

MERCEM 300 Z – Measuring principle : MERCEM 300 Z 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 : SICK AG : Confidential : Florian Greiter, Product Management 18

MERCEM 300 Z – Patented extractive direct measurement : MERCEM 300 Z: 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 : SICK AG : Confidential : Florian Greiter, Product Management 19

MERCEM 300 Z – Internal adjustment Optical unit : SICK AG : Confidential : Florian Greiter, Product Management 20

MERCEM 300 Z – Internal adjustment : MERCEM 300 Z 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 : SICK AG : Confidential : Florian Greiter, Product Management 21

MERCEM 300 Z – Test gas generator Vaporizer Sample gas line CALSIC 300 : SICK AG : Confidential : Florian Greiter, Product Management 22

MERCEM 300 Z – Test gas generator : CALSIC 300 (option) - Vaporization of liquid Hg. Cl 2 -solution of known concentration Realization as automated span gas function Three predefined span concentrations possible Automatic injection before sampling filter unit : SICK AG : Confidential : Florian Greiter, Product Management 23

MERCEM 300 Z – CALSIC 300 : Advantages - Adjustment of overall system - Fully automated QAL 3 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 : SICK AG : Confidential : Florian Greiter, Product Management 24

MERCEM 300 Z – Adjustment during field test Adjustment cell High Middle Low : SICK AG : Confidential : Florian Greiter, Product Management 25

MERCEM 300 Z – Cabinet : MERCEM 300 Z System housing : Advantages - Standardized setup Easy to maintain Full air conditioning (-20 to +50°C) Protection grade IP 55 Dimensions: H W D 1800 mm x 1050 mm x 745 mm - Weight: approx. 250 kg : Benefits - Convenient and fast access for easy service - Stable measuring results in harsh and/or difficult ambient conditions : SICK AG : Confidential : Florian Greiter, Product Management 26

MERCEM 300 Z - Design High temperature cell Ejector Optical unit Electronics CALSIC 300 : SICK AG : Confidential : Florian Greiter, Product Management 27

MERCEM 300 Z – Table of contents : System components and measuring principle : Test results and certification : Summary : SICK AG : Confidential : Florian Greiter, Product Management 28

MERCEM 300 Z – Certification : SICK AG : Confidential : Florian Greiter, Product Management 29

MERCEM 300 Z – Certification : SICK AG : Confidential : Florian Greiter, Product Management 30

MERCEM 300 Z – Type approval : Type approval according to EN 15267 - Approved measuring ranges: 0 -10/45/1000 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 : SICK AG : Confidential : Florian Greiter, Product Management 31

MERCEM 300 Z – Type approval : SICK AG : Confidential : Florian Greiter, Product Management 32

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 CALSIC 300 : SICK AG : Confidential : Florian Greiter, Product Management 33

MERCEM 300 Z – Table of contents : System components and measuring principle : Test results and certification : Summary : SICK AG : Confidential : Florian Greiter, Product Management 34

MERCEM 300 Z – Summary MERCEM 300 Z Features Benefits : Precise measurement of “total mercury” directly in a thermal converter (patented) Reliable results of the actual measuring values of elemental Hg and Hgcompounds in gases : Measuring operation without using Very low operating expenses consumables : Very low maintenance gas sampling using Minimum maintenance expenditure an ejector pump – no moving parts : Integrated adjustment cell for automatic drift correction : SICK AG : Confidential Long-term stability without the need of a technician due to self – adjusting measuring system : Florian Greiter, Product Management 35

MERCEM 300 Z – Summary MERCEM 300 Z Features Benefits : Automatic adjustment of the entire measuring system with a built-in test gas generator (optional) Measuring certainty using the fully automated adjustment with test gas : Modular design with the entire system Convenient and fast access for easy service and user-friendly remote diagnosis : Rugged housing for use in harsh industrial Stable measuring results in harsh and/or difficult ambient conditions environments : SICK AG : Confidential : Florian Greiter, Product Management 36

MERCEM 300 Z – Questions ? MERCEM 300 Z Innovative mercury monitoring : SICK AG : Confidential : Florian Greiter, Product Management 37