ODS Awite biogas analyser brochure - ODS-instrumentatie NL

ODS InstrumentatieSpecialised in Flowmeters, Samplers & AnalysersONLINE PROCESS ANALYSERFOR BIOGASBenefits of gas analysisAwite analyser systems are specifically designed to measure the composition of Biogas,Sewage gas & Landfill gas.In biotechnological plants measurements are of great importance to monitor and controlthe processes. The measurement data is used for process optimisation and operationsafety.The online gas analysis provides essential benefits in plant efficiency, resulting in higherprofits, time-saving, less waste, and lower impact on the environment.The Awite analyser provides online analysis of your biogas.As specialists with long experience in biogas analysis we provide technically innovative products of high quality. The analysers aremanufactured in Germany and more than 1200 systems are sold worldwide.

ODS InstrumentatieSpecialised in Flowmeters, Samplers & AnalysersONLINE PROCESS ANALYSERFOR BIOGASKey features analyser• Robust industrial design,complete system housed in rugged stainless steel enclosurewhich also provides easy access for maintenance• Modular design,customised to your individual needs• User friendly,self-explanatory interface via colour touch screen• Multi-stream possibility,one instrument to monitor multiple process units• Extensive data control,using integrated Industry-Embedded panel PC• Flexible communication,all major industry standard data interfaces availableUnique modular system to cover all your applicationsFields of industryOur gas analysis systems are installed in:- Industrial biogas plants (e.g. food industry)- Agricultural (farm) biogas plants- Landfill gas recovery plants- Dry fermentation systems- Municipal Solid Waste (MSW) treatment plants- Waste processing companies- Anaerobic Waste Water Treatment (WWT) plants- Sewage plants- Bio diesel plants- Desulphurisation plants- Combined Heat & Power (CHP) plants- Sale of raw biogas- Biogas upgrading to Biomethane- Natural gas/ grid injection stations- Fuel cell applications- Various areas of research and development (laboratory)

ODS InstrumentatieSpecialised in Flowmeters, Samplers & AnalysersONLINE PROCESS ANALYSERFOR BIOGASApplicationsBiogas analysis is used in:• Digester gas from anaerobic digestion tanks or landfills• Scrubber, Dryer and Desulphurisation units• Air injection dosing for biological oxidation of H 2 S• Compressor stations• Combined Heat and Power (CHP) Engine/ Turbine(protection and efficiency control)• Flare stack monitoring and control• Collecting data for other instruments• Clean Development Mechanism (CDM) monitoring(for certified emission reductions / carbon credit projects)Monitoringthe biogas compositionFermentersoutput statusmonitoringFermenter 1Fermenter 2Fermenter 30-100 vol% CH 40-100 vol% CO 20-25 vol% O 20-5000 ppm H 2 S0-2000 ppm H 2Raw biogasThe raw biogas output of each digester/fermenter is monitored to ensure optimumconditions for the biological process.Methane (CH 4 )Based on the methane concentration theaddition of biomass to the tank iscontrolled. This prevents disruption of thefermentation process to achieve maximummethane yield.Oxygen (O 2 )Measuring the oxygen concentrationprovides safer operation by earlydetection of an explosive gas mixture orunderground landfill fire.High oxygen reading provides an indicationof micro-organism activity decrease.Hydrogen sulphide (H 2 S)Hydrogen sulphide gas is very toxic andcorrosive. Measuring the hydrogen sulphidelevel provides an early warning to preventcostly damage to equipment (likepipelines and CHP engines) and preventdangerous situations.The H2S also disrupt the biological processresulting in reduced methane yield.

ODS InstrumentatieSpecialised in Flowmeters, Samplers & AnalysersONLINE PROCESS ANALYSERFOR BIOGASIntegration and datacollection of otherinstrumentsThe online analysis result of theAwite biogas analyser providesuseful information for otherinstruments in the plant.As an example, it is used tocompensate for flow meteringerrors caused by the varyingmethane content.The reading of thermal mass flowmeters depends on the methanecontent. The actual gascomposition data provided by theAwite analyser is be used tocorrect the flow reading.Software functionsThe analyser is equipped with an Industry-Embedded PC which allows for easy operation viatouch screen panel.The flexible and stable Linux based software offers you:• Operation and configuration by intuitive user friendly menu structure• Graphical or tabular presentation of measuring values• Historical trending and visualization of measurement data• Extended diagnostics functions; alarms events, sensor status, measurement cycle status• Integrated online help and information documents• Multi-language system (switching of language during operation!)• Practically unlimited storage of measured values and events• Implementation of customised logic for control of other instruments• Remote reading of measured values and status information• Calculation, like caloric value and energy flow• Data export via USB or EthernetAnd many more!PC software AwiView available as freewareThe flexible design of theanalysers hard- and softwareallows for the addition of I/Omodules that are used to connectthe flowmeter and calculate/generate output of the correctedmass flow rate.It is possible to connect othersensors in the plant for datamanagement (sensor like pH,temperature, pressure, humidityand flow).The Industry-Embedded PC andadditional I/O also allows forcontrol external valves, fansetc.4-20 mABiogas flow0-100 vol% CH 4ODS offers the total solution for reliable flow rate data

ODS InstrumentatieSpecialised in Flowmeters, Samplers & AnalysersONLINE PROCESS ANALYSERFOR BIOGASAnalytical featuresBiological Desulfurization0-25 vol% O 20-200 ppm H 2 SThe analyser is based on a modular systemwhich allows for a customised solution.The analyser consists of several ‘buildingblocks’ like different type of sensors andmeasuring cells that are added to thesystem. This offers a flexible number ofmeasurement components & samplestreams. Multiple fermenters are monitoredusing one device using the multi-streamfeature.Fuzzy logic controlair dosing pumpGas cleaningprocess monitoringReactorH 2 SRemoval0-3000 ppm H 2 S0-20 ppm H 2 SCHP EngineProtection monitoring0-100 vol% CH 40-25 vol% O 20-200 ppm H 2 SFor high operational reliability and longtermstability the analyser can be set to aperiodic (discontinues) measurement cycle.Continues measurement is often notnecessary anyway because of the slowlychanging processes found in biologicalplants. The discontinuous measurementcycle is typically set at 30 minutes. Betweenthe cycles the inside air of the analyserenclosure is measured for safeguarding(monitor for gas leakage).In some applications (like Anaerobic WWTplants) the hydrogen sulphide concentrationin raw biogas can be as high as 20.000ppm.The analyser is capable of measuring highconcentrations of H 2 S using an electroniccontrolled dilution system (applicable formeasuring ranges above 5000 ppm H 2 S).The dilution ensures an extensiveelectrochemical sensor life-time.Using multiple sensor modules automaticrange switching is possible to maintainhigh accuracy while covering a widemeasuring range.Internal safety &reliability systemsThe analyser is equipped with extensiveinternal fault detection mechanisms.Detailed error messages can be viewedon the 7” display.The analyser features an automaticshut-off based on the internal leakdetection system.An optical waterdetector is present toprevent any sensor damage due tocondensate trap overflow.Electrochemical sensors overload (toohigh concentration of the target gas) isautomatically detected and the specificmeasuring channel is temporary shut-offto preserve the sensors.For continuous measurement systemsredundant sample pumps are providedwith automatic switch-over by internaldifferential pressure sensors.A system safety review is conductedtogether with TÜV.Fuel inlet feed

ODS InstrumentatieSpecialised in Flowmeters, Samplers & AnalysersONLINE PROCESS ANALYSERFOR BIOGASModelsGeneral specifications housingEnclosureProtectionLocationAmbient conditionsStainless steel casing for wall mountingIngress protection IP-54For indoor installation+5 to +35 °CAwiECO AwiFLEX Cool+ AwiFLEX Cool+‘double door’Dimensions (H x W x D) 460 x 360 x 240 mm 450 x 650 x 250 mm 850 x 850 x 250 mmWeight Ca. 20 kg Ca. 20/ 30 kg(depending on modules)Ca. 30/ 70 kg(depending on modules)Explosion proof For safe area only Option for ATEX Zone 2 availableThe analyser is available in two base models: the AwiECO, which stands for Economic; and the AwiFLEX, which stands forFlexible. The two models share the same platform, therefore the performance is basically similar. For the AwiFLEX thestainless steel housing is significantly larger. This allows for a flexible configuration of the analyser. More modules (sensors,valves, electronic boards) can be fitted for a total customised solution, like a multi-stream systems.AwiECOThe AwiECO is a standardised model in a compact housing,available in the following configuration:Single stream with 3 analytical modules1x NDIR measuring cell for CH4 or CO2 (0-100 vol%)1x Electrochemical cell for O2 (0-25 vol%)1x Electrochemical cell for H2S (0-20 or 200 or 3000 ppm)Dual stream with 2 analytical modules2x Electrochemical cell for H2S (0-20 or 200 or 3000 ppm)Output is provided via three analogue signals (4-20mA), one for each measuring component. This model also has the largetouch screen, extensive data storage and an USB service interface with AwiVIEW software.AwiFLEX Cool+The AwiFLEX is fully customisable and can be freely extended with the available modules. Two housing sizes are available:the standard single door; and a larger one with two doors. A sample cooler is avaiable as standard, to dry the sample gasfor a stable and reproducible measurement.

ODS InstrumentatieSpecialised in Flowmeters, Samplers & AnalysersONLINE PROCESS ANALYSERFOR BIOGASPerformanceAnalytical modulesComponentRangeRepeatabilityTechnologyNoteMethane (CH4)Carbon Dioxide (CO2)Oxygen (O2)Oxygen (O2)0-100 vol%0-100 vol%0-25 vol%0-25 vol%0,2 %0,05 %NDIR measuring cellParamagnetic measuring cellDual beam infraredabsorption sensor withpressure & temperaturecompensationFor continues measurement0-20 ppmv2,5 % / 0,5 ppm0-200 ppmvHydrogen Sulphide (H2S)0-500 ppmv0-1.500 ppmv0-3.000 ppmvElectrochemical sensorHydrogen (H2)0-5.000 ppmv0-2.000 ppmv0-5.000 ppmv1%Including absolute pressurecompensation0-50.000 ppmvHydrogen Sulphide (H2S)Hydrogen (H2)0-20.000 ppmv0-50.000 ppmv0-100 vol%Electrochemical sensor withintegrated electronic controlleddilution system (available forAwiFLEX only)Measurement configurationsAwiECO AwiFLEX Cool+ AwiFLEX Cool+‘double door’Analysis method Discontinuous Discontinuous or continuousCalibration Manual Manual or automaticSample points/ streams1(or 2 for H2S only)1-4up to 16 with ext. switchbox1-9up to 100 with ext. switchbox

ODS InstrumentatieSpecialised in Flowmeters, Samplers & AnalysersONLINE PROCESS ANALYSERFOR BIOGASTechnical specificationsInternal sample preparationInlet filterWater sensorSafety shut-off valveSensor overload protectionAbsolute pressure sensorSample pumpDifferential pressure sensorCabinet temperature sensorSample coolerAutomatic range switchingCondensate trapPressure regulatorIncludedIncluded, contactless optical sensor to protect analytical sensorsOptional magnetic valveIncluded, temporary shutdown of measuring channel to preserve the sensorIncluded, 0…1600 mBar(g) for pressure compensation of the analytical sensorsDiaphragm gas pump(s) with brushless motor*Not applicablefor AwiECOExternalExternalOptional for redundant sample pumpsIncludedIncluded, peltier gas coolerOptional*) Maximum distance to sample point ca. 100m based on internal pump and atmospheric process pressure.Sample conditionsInlet connectionAllowable inlet pressureAllowable inlet temperatureSample flowGas huminityStainless steel clamp ring connection 4/6mm< 20 mBar(g), 400 mBar(g) with standard external regulator*-20 ≥ +50 °CCa. 0.75 l/min per measurement channel100% RH (non-condensing)*) For the sample take-off point we can supply preassembled ‘gas-port’ including isolation ball valve, filter and pressure regulator.No additional sampleconditioning system required!

ODS InstrumentatieSpecialised in Flowmeters, Samplers & AnalysersONLINE PROCESS ANALYSERFOR BIOGASTechnical specificationsElectronics specificationsUser interfaceData storageAnalogue outputAnalogue inputDigital I/OCommunicationRemote accessProgrammable logicCalculationsPower supplyPower consumption7” touchscreen (TFT colour, resolution 800 x 400 px)1GB compact flash card0/4-20 mA (500ohm) for each measuring componentNot applicable for AwiECO0/4-20 mA (500ohm) for e.g. flow meterRelays For alarmsOptional:- Ethernet 10/100Mbit (Modbus TCP/IP)- Profibus-DP- Profinet- Serial RS232 or RS485 (Modbus RTU)- USB-port (for maintenance only)- Parallel printer interfaceOptionalOptionalOptional (e.g. caloric value, energy flow)100…230 VAC, 45…65 HzAwiECO ca. 35 Watt / AwiFLEX ca. 100 WattService activities includesCommissioning, maintenance, calibration, spares and support.ODS Instrumentation in The NetherlandsVisitors address: Donk 6, 2991 LE BarendrechtPostal address: Postbus 69, 2990 AB BarendrechtPhone:+31 (0)180 640 879Fax:+31 (0)180 640 569Email:instrumentatie@odsbv.nlODS Instrumentation in BelgiumVisitors address: NoordKaai 3, 2030 AntwerpenPhone:+32 (0) 354 000 90Fax:+32 (0) 354 000 99Email:instrumentatie-belgie@odsbv.nlVisit us online atwww.ods-instrumentatie.nl