Related by context. Frequent words. (Click for all words.) 60 flue gas 60 scrubber 58 flue gases 58 baghouse 56 biofilter 55 evaporators 54 diesel particulate filter 54 combustion turbine 54 evaporator 54 compressor 54 steam generator 53 sorbents 52 boilers 52 particulate filter 52 clarifiers 52 membrane filtration 51 steam boilers 51 gasifier 51 ethylene oxide 51 dehumidification 51 microfiltration 51 desulphurization 51 combustor 50 syngas 50 combustion turbines 50 Selective Catalytic Reduction SCR 50 hydrogen chloride 50 filtration 50 ammonia 50 degassing 50 recirculation 49 condenser 49 heat exchanger 49 digesters 49 harmful contaminants 49 circulating fluidized bed 49 steam turbine generator 49 boiler 49 digester 49 selective catalytic reduction 49 fuel injector 49 electrolyzer 49 scrubbers 49 VOC emissions 49 biomass boiler 49 activated sludge 49 Aeration 48 sorbent 48 adsorbent 48 oxidizer 48 combustion 48 desulfurization 48 Wastewater Treatment Facility 48 clarifier 48 hydrogen fluoride 48 denitrification 48 refrigerant 48 methylene chloride 48 potassium hydroxide 48 anaerobic digester 48 furnace 47 particulate filters 47 alkylation unit 47 evaporative 47 oxidant 47 absorbents 47 pyrolysis 47 anaerobic digesters 47 anodes 47 sulfur dioxide nitrogen oxide 47 hydrocracker 47 chlorine dioxide 47 biomass gasification 47 nitrogen oxide NOx 47 water softener 47 steam generators 47 gas recirculation 47 Heat Exchanger 46 reinjection 46 spray nozzles 46 Reverse Osmosis 46 gasification 46 Hydrochloric acid 46 noxious odors 46 gasified 46 diesel particulate filters 46 passivation 46 volatile organic compounds 46 reciprocating engines 46 microturbines 46 silica gel 46 isobutanol 46 cogeneration plant 46 Water Reclamation Facility 46 particulate matter emissions 46 vacuum furnace 46 turbine generator 46 remove impurities 46 Ammonia 46 compressors 46 fogger