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PARTICULATE CONTROL FROM PLASTIC EXTRUSION PROCESS A large packaging company was expanding a plant and adding an extrusion line for rigid packaging products. From experience at another plant, it was known that a few pounds per hour of waxy particulate would be emitted from the new line – at the die and from the extruder vent.
HYDROGEN SULFIDE AND ODOR CONTROL FROM CRUDE OIL STORAGE TANKS Sulfurous and hydrocarbon odors are an air emission problem common to many industries, including petroleum (refining and transmission), petrochemical, and wastewater treatment, among others. In cases where exhaust gas flow rates and/or concentrations of contaminants are modest, adsorption is often an excellent choice for emission control technology, achieving up to 99%+ control efficiency at capital and operating costs that are much lower than those for oxidizers.
OIL MIST CONTROL FOR METAL ROLLING MILL The plant had developed a process that yielded significantly higher throughput for one of the rolling mills. However, this process used greater amounts of lubricant to process the increased amount of metal, and the resulting opacity (i.e., visible emissions) from the stack would exceed the plant’s opacity limit of 10% during this operation, and emissions of volatile organic compounds (VOCs) would marginally exceed the plant’s regulatory limit as well. The plant was therefore limited in its productivity, and had higher production costs, because of these emissions levels.
OIL MIST FOG/HAZE REMOVAL FROM PLANT BUILDING AIR The plant engineering group’s objective was to eliminate the oil mist haze/fog inside the plant and improve plant air quality. The plant chose to vent the air to atmosphere after cleaning, and as such, the cleaned air discharged to atmosphere was required to have no opacity (i.e., no visible emissions) and virtually no remaining particulate. Last, the plant required a system that is proven, reliable, and low maintenance, allowing continuous 24/7 operation with no downtime.
STICKY PARTICULATE CONTROL FROM ADHESIVES PRODUCTION The emissions posed two problems. First, the emissions were depositing on buildings and other assets around the plant, including employees’ and visitor automobiles, and the sticky deposits were extremely difficult to remove. Second, there were substantial visible emissions from the stack, in potential violation of local opacity limits. The plant’s objective was straightforward: to identify a proven, reliable, and economical solution that would eliminate the fine aerosol, condensed VOC, and particulate emissions.
OIL MIST AND FINE PARTICULATE CONTROL FROM RESIN PRODUCTION PROCESS At this plant, the mist was controlled with a venturi scrubber that was approaching the end of its useful life. The venturi scrubber had never provided high control efficiency for the mist, resulting in visible emissions from the stack – near the plant’s 20% opacity limit – and extensive black emission stains on nearby equipment and the adjacent building. Further, the sticky resins that passed through the venturi scrubber would foul the exhaust fan, causing unscheduled downtime for the ventilation system and production line.
OILMIST, PARTICULATE, AND VOC EMISSION CONTROL AT TEXTILE PLANT Emission controls were required for compliance with state EPA regulations for opacity (visible emissions). The plant’s objective was to identify a proven, reliable, low cost and low maintenance solution to eliminate the fine particulate and VOC emissions.

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