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nox control Applications

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    Air pollution control solution for the NOx and CO2

    Specific industrial applications require wet end of pipe treatment for NOx or CO2. Macrotek offers absorbers utilizing various reagents for neutralization of NOx or CO2. NOx scrubbing is particularly suitable in situations where Nitric Acid can be utilized elsewhere in the plant, as it is a scrubbing product. As CO2 regulations become more stringent, methods for reducing emissions are continually being evaluated. Macrotek offers CO2 scrubbing technology which isolates CO2 in a contaminated stream to produce a pure CO2 product, making sequestration a more appealing option.

    By Macrotek Inc. based in Markham, ONTARIO (CANADA).

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    Gas monitoring instruments and systems for process NOx measurement

    Nitric acid HNO3 is an important intermediate reagent for production of several important end products, such as fertilizers, explosives, dyestuffs/pigments, pesticides, pharmaceuticals, photographic materials, plastics, and synthetic fibers. At nitric acid manufacturing plants, the Gasmet™ FTIR Gas Analyzer can be used to measure several gaseous components from the process stream for purposes of process control. A single system can be used to measure the high levels of nitrogen monoxide NO and nitrogen dioxide NO2, as well as water vapor H2O, nitrous oxide N2O, carbon monoxide CO, carbon dioxide CO2 and ammonia NH3. The fixed installation products for these purposes are the Gasmet™ CEM II measurement system, and the Gasmet™ FCX Gas Analyzers, both of which utilize the FTIR measurement technique for simultaneous multicomponent analysis of the sample gas.

    By Gasmet Technologies Oy based in Helsinki, FINLAND.

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    Gas monitoring instruments and systems for DeNOx process control

    In most combustion process atmospheric nitrogen reacts with oxygen in high temperature conditions to produce nitrogen oxides (NOx). Total NOx production is the sum of nitrogen monoxide NO and nitrogen dioxide NO2. The emissions of these gases are controlled through setting of emission limit values (ELVs) for power plants.

    By Gasmet Technologies Oy based in Helsinki, FINLAND.

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    Air pollution control for the ethanol/biodesel industry

    Renewable energy plants are expanding and developing at a significant rate in North America and throughout the world. In the United States, the Clean Air Act for reformulated gasoline (RFG) mandates a 2wt.% oxygen requirement, driving the demand for more production. Ethanol is the most viable additive because it is a clean-burning fuel produced from renewable, domestic biomass sources. However, the production of these fuels can result in unacceptable levels of volatile organic compounds (VOCs), carbon monoxide (CO), nitrogen oxides (NOx), particulate matter (PM) and hazardous air pollutants (HAPs), all regulated by environmental agencies.

    By Anguil Environmental Systems, Inc. based in Milwaukee, WISCONSIN (USA).

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    Applications and Air Pollutants Removed in the Ceramics and Glass Industry

    Removal of particulate, acid gases and NOx emissions from glass furnaces. Particulate control on glass and ceramic material dryers and furnaces.

    By Bionomic Industries Inc. based in Mahwah, NEW JERSEY (USA).

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    Ethanol and Biofuels

    Controlling the VOCs and CO emissions produced in the feed dryers (wet and dry milling), coupled with the particulate matter being introduced and the need for the reduction of NOx are just the start of having a successful abatement solution. The challenges of smooth pressure control that reduces dryer fluctuations and plug resistant media that lessen the frequency of bake-outs are also part of a successful abatement system and we have the solutions. Our engineered oxidation systems provide reliable performance with minimal maintenance requirements. Externally accessible valve bearings and other critical components are kept out of the corrosive moisture-laden streams extending the life of the equipment and facilitate maintenance intervals. Our simple oxidizer designs control your emissions with minimal facility intervention and allow us to provide you with reliable and dependable equipment.

    By Babcock & Wilcox MEGTEC based in De Pere, WISCONSIN (USA).

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    Waste to Energy

    We can treat the air streams from waste management plants, MBT (Mechanical Biological Treatment) reception and composting areas, Waste Water Treatment Plants (WWTP), Refuse Derived Fuel (RDF) Plants, gasification of waste, syngas, torrefaction, gas engines and biogas upgrading. In waste management plants and WWTP, we remove the odors that may be causing a nuisance to neighbors, with bioreactors using Biomass to degrade odorous components and where odors are particularly intractable or VOC emissions higher, thermal oxidizers to meet prescribed emission limits and odor levels. In RDF Plants, Syngas, Gasification, Gas Engine and Biogas Upgrading applications, we employ thermal oxidizers, particulate removal and DeNOX systems, for the control of VOC, NOx, CO and particulates to prescribed emission limits.

    By Babcock & Wilcox MEGTEC based in De Pere, WISCONSIN (USA).

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    Applications and Air Pollutants Removed in the Fertilizer Industry

    Wet Scrubbers, dry collectors, wet electrostatic precipitators and complete engineered systems for urea, MAP, DAP, TSP and AN Plant rotary dryers and coolers, reactors and ammoniation granulators, pug mills, rock acidulation, curing, storage and material handling operations to control emissions of: particulate, including phosphate rock dust, ammonium phosphate, ammonia, nitric acid, NOx, phosphoric acid, hydrogen fluoride, silicon tetrafluoride, sulfuric acid, removal. Complete systems for scrubbing and recovery/reconcentration of fluorosilicic acid up to 25% concentration.

    By Bionomic Industries Inc. based in Mahwah, NEW JERSEY (USA).

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    Applications and Air Pollutants Removed in the Chemical, Pharmaceutical and Plastics Industries

    Supplying for over 35 years reliable air pollution control equipment and systems for removal of all gaseous compounds, particulate and odors from chemical process operations, reactors, dryers, calciners, membrane cells, pharmaceutical reactors and tablet dryers, crystallizers, vessel filling and storage vent emissions, emergency scrubbing of high concentration gas releases from cylinders, vacuum pump emissions, Quench /scrubber systems for acid gases and particulate from high temperature thermal oxidizers.  Gaseous emissions from piloting operations and research lab hoods. Specialty NOx abatement for explosives manufacturing and other process operations. Recovery and re-concentration of acids and other gaseous contaminants including by-product production.

    By Bionomic Industries Inc. based in Mahwah, NEW JERSEY (USA).

  • Marine emissions monitoring

    In recent years, new regulations have been introduced governing emissions from ships. With the International Maritime Organization (IMO) adopting Annex VI of MARPOL designed to limit sulphur oxides (SOx), nitrous oxides (NOx) and particulate matter emissions, as well as introducing emission control areas (ECAs) to reduce emissions of those air pollutants further in designated sea areas, ship owners/operators can face hefty fines for failing to meet these new requirements on the “polluter pays” principle.

    By DynOptic Systems Ltd based in Brackley, UNITED KINGDOM.

  • Emissions testing for engines

    Rich-burn engine exhaust, when uncontrolled, can have wide concentration ranges and both CO and NOX can fluctuate significantly. The on-board CO dilution system will automatically set-up for optimum testing, perfect for a rich burn engine. Lean-burn engines have different exhaust characteristics, but NO2 can make up a significant portion of the total NOX measurement. The 350 measures both NO and NO2 for proper lean-burn engine set-up. Due to high concentration, replaceable interference filters keep the sensors stable and your readings accurate. High exhaust pressures and heavy particulate loading are easily controlled with the special pressure relief valve (standard) on the engine probe configuration.

    By Testo Inc. based in Sparta, NEW JERSEY (USA).

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