Air Pollution Control Equipment Selection Guide


Air Pollution ControlIt Is Separation TechnologyWet Collection of ParticulateDry CollectionGas AbsorptionConcept of Number of Transfer Units in AbsorptionThe Transfer Unit Concept in Gas AbsorptionHybrid SystemsAbsorption DevicesDevice TypeTypical Applications and UsesOperating PrinciplesPrimary Mechanisms UsedDesign BasicsOperating SuggestionsBioreactorsDevice TypesBioremediationTypical Applications and UsesOperating PrinciplesPrimary Mechanisms UsedDesign BasicsOperating SuggestionsBiotrickling Filter TechnologyAerobic Digester TechnologyBioscrubber TechnologyDry Cyclone CollectorsDevice TypeTypical Applications and UsesOperating PrinciplesDesign BasicsOperating/Application SuggestionsElectrostatic PrecipitatorsDevice TypeTypical Applications and UsesOperating PrinciplesPrimary Mechanism UsedCreation of ChargeField ChargingDiffusion ChargingDesign BasicsResistivity of DustOperating SuggestionsAir Load/Gas Load TestingAlignmentThermal ExpansionAir In-LeakageRappingInsulator CleaningPurge Heater and Ring Heater SystemsProcess TemperatureFuel ChangesEvaporative CoolersDevice TypeTypical Applications and UsesPrimary Mechanisms UsedDesign BasicsTypes of Gas CoolingGas ConditioningBasic SizingAll-Important AtomizationCase History ExampleCost ConsiderationsOperating SuggestionsFabric Filter CollectorsDevice TypeTypical Applications and UsesOperating PrinciplesPrimary Mechanisms UsedDesign BasicsOperating SuggestionsFiberbed FiltersDevice TypeTypical Applications and UsesAcid MistAsphalt ProcessingPlasticizer/Vinyl/PVC ProcessingCoating/LaminationsElectronicsTextile ProcessingMetal WorkingLube Oil Vents and ReservoirsIncinerator EmissionsInternal Combustion Engine Crankcase VentsPrecious Metal RecoveryVacuum PumpsOperating PrinciplesPrimary Mechanisms UsedDesign BasicsOperating/Application SuggestionsFilter CleaningFiberbed Filter LifeFire Protection If the Contaminant Is CombustibleFilament (Mesh Pad) ScrubbersDevice TypeTypical ApplicationsOperating PrinciplesPrimary Mechanisms UsedDesign BasicsOperating SuggestionsFluidized Bed ScrubbersDevice TypeTypical Applications and UsesOperating PrinciplesPrimary Mechanisms UsedDesign BasicsOperating SuggestionsMechanically Aided ScrubbersDevice TypeTypical Applications and UsesOperating PrinciplesPrimary Mechanisms UsedDesign BasicsOperating SuggestionsPacked TowersDevice TypeTypical Applications and UsesOperating PrinciplesPrimary Mechanisms UsedDesign BasicsCounterflowCrossflowOperating SuggestionsSettling ChambersDevice TypeTypical Applications and UsesOperating PrinciplesPrimary Mechanisms UsedDesign BasicsOperating/Application SuggestionsSpray Towers/ScrubbersDevice TypeTypical Applications and UsesOperating PrinciplesPrimary Mechanisms UsedDesign BasicsOperating SuggestionsThermal Nitrogen Oxide (NOx) ControlDevice TypeTypical Applications and Uses: Combustion SourcesOperating PrinciplesPrimary Mechanisms UsedDesign BasicsDifferent Forms of NOxNOx Measurement UnitsThermal NOxFuel-Bound NOxThermal-NOx Control StrategiesDilution StrategiesStaging StrategiesPost-combustion StrategiesOperating/Applications SuggestionsThermal OxidizersDevice TypeTypical ApplicationsOperating PrinciplesPrimary Mechanisms UsedDesign BasicsOperating SuggestionsTray ScrubbersDevice TypeTypical Applications and UsesOperating PrinciplesPrimary Mechanism UsedDesign BasicsOperating SuggestionsVane Type ScrubbersDevice TypeTypical ApplicationsOperating PrinciplePrimary Mechanisms UsedDesign BasicsOperating SuggestionsVenturi ScrubbersDevice TypeTypical ApplicationsOperating PrinciplesPrimary Mechanisms UsedDesign BasicsOperating/Application SuggestionsWet Electrostatic PrecipitatorsDevice TypeTypical Applications and UsesPrimary Mechanisms UsedDesign BasicsTypes of Wet PrecipitatorsConfigurationArrangementIrrigation MethodSelecting a Wet Electrostatic PrecipitatorOperating SuggestionsSpecial Applications: Venturi Scrubbers as EvaporatorsDevice TypeTypical ApplicationsOperating PrinciplesPrimary Mechanism UsedDesign BasicsOperating SuggestionsEnergy RecoveryDevice TypeTypical Applications and UsesOperating PrinciplesPrimary Mechanism UsedDesign BasicsOperating SuggestionsMultitechnique Equipment for Gasification (Syngas)Device Type(s)Typical Applications and UsesStarved-Air GasificationPlasma DestructionReformer GasificationOperating PrinciplesPrimary Mechanisms UsedDesign BasicsOperating SuggestionsSystem Diagnostics and TestingToolsIsolate and Correct the ProblemDefine the ProblemInspect the Scrubber and/or SystemBaseline the SystemSearch for Detailed Solution to the ProblemGas Cleaning DeviceLiquid Circuit ProblemsInstrumentation IssuesGas Moving DeviceGas Discharge DeviceFix the ProblemOptimization of Gas Cleaning Equipment, OverviewDefining the ProblemPost Installation Optimization by Equipment TypeDry Cyclone OptimizationThe Dry CycloneDry Clone Performance OptimizationImportance of Uniform Gas FlowMinimizing Particle Size ReductionImportance of Vertical OrientationSmooth Interior SurfacesMaintain Control of Dust LevelTrim GasketsMinimize Dust Discharge Device LeaksControl Static Electricity if PresentAdjust for Particle Size DifferencesPotential Operating Problems SummaryOptimization TechniquesInspect the Hopper If UsedUse Dust to Augment SealingCheck Integrity of All GasketsDouble Check the Dust Discharge Device If FittedNo Dents!Absorber OptimizationMinimize Potential ProblemsUnless the Gas Is Absorbed and Reacted, Minimize RecycleDont Waste the Make Up WaterControl TemperaturesCareful pH Control, If Used, Is CriticalMake Chemical, If Used, Pass at Least Once ThroughLocate Sensors for Most Rapid ResponseAdjustments to ConsiderUse Dilute Chemical Make Up If PossibleIf Exotherms Is Present, Add Cold Make Up Water to HeaderPremix Additive ChemicalsChoose Effective Probe/Sensor LocationsSeek Uniform Liquid DistributionWhat If the Containment Is Easily Stripped?Possible Problems Given the Chemical Addition Odor Control ExampleProblems If the Absorbed Containment Easily StripsOptimizing Odor Control ApplicationsOptimizing Applications That Easily StripPre-Formed Spray Scrubbers OptimizationBalancing Absorption and Particulate RemovalSome Problems to ConsiderOptimization TechniquesPrecipitator OptimizationThe Requirement of SynergyPrimary Precipitator ComponentsGas Inlet DuctworkImportance of Particulate CharacteristicsCollecting Surface CharacteristicsElectrode Type and CharacteristicsPrimary ComponentsAncillary ComponentsThe Power SupplyQuencher OptimizationPossible ProblemsOptimization TechniquesSpray Tower OptimizationPossible ProblemsOptimization TechniquesVertical Gas VelocitySpray Nozzles and LocationWhen Chemicals Are UsedSpray Nozzle WearBack-Mixing IssuesTray Scrubber (Tray Tower) OptimizationPossible ProblemsOptimization PossibilitiesMounting the Vessel True VerticallyLocalized Wear and/or Solids BuildupWeepingSudden Pressure Drop ChangesSudden Changes in EfficiencyFace SprayDroplet Eliminator EffectsVenturi Scrubber OptimizationPossible ProblemsPossible RemediesPreconditioning the Gas StreamTurndown and Pressure Drop MaintenanceMethod of Liquid IntroductionEffects of WearImproving Gas Absorption
 
Next >