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voc oxidation Applications

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    VOC and HAP Abatement

    As is the case for many industrial manufacturing processes, emissions are best destroyed through the use of thermal and catalytic oxidation technologies. Volatile Organic Compounds (VOCs) and Hazardous Air Pollutants (HAPs) are destroyed through the use of high temperature combustion with direct heat recovery. The harmful air pollutants are converted to heat, water vapor and carbon dioxide, creating a destruction efficiency greater than 99%.

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

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    Low level measurement of VOCs and Terpenes close to the sea and the Landes Forest

    It has been established that organic aerosol (OA) makes up for a major fraction of fine particulate matter in all region of the atmosphere. This fraction accounts approximately for half of the total PM2.5 dry mass.1,2 Primary OA is directly emitted in the troposphere from anthropological and natural sources whereas secondary OA (SOA) is formed in-situ in the atmosphere from the oxidation of biogenic or anthropogenic gas-phase precursors and subsequent partitioning of the less volatile products into the particle phase. The current number is that, on a global scale, SOA would represent around 60% of the overall OA.3 However, recent global mass-balance estimations for the removal of volatile organic compounds (VOC) suggest that this number could under-predicts SOA production.4 Recent field measurements in urban locations are also in support of a larger share, indicating that SOA is the dominant fraction of OA, with amounts considerably 20 greater than models predictions.

    By Chromatotec Group based in Val de Virvée, FRANCE.

  • Recipricating Engine

    EmeraChem manufactures CO catalysts to eliminate carbon monoxide (CO), VOC's, formaldehyde, and nitrogen oxides (NOx) contaminates from Lean and Rich burn, 2-stroke and 4-stroke reciprocating engines.

    By EmeraChem based in Knoxville, TENNESSEE (USA).

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    Chemical and Pharmaceutical Solutions

    The application of VOC emission control equipment for the chemical and pharmaceutical industries requires a thorough knowledge and understanding of the customer's process and requirements, and having the ability to offer custom solutions. MEGTEC has years of experience in finding solutions to support the chemical industries worldwide. with our range of solutions including scrubbers and wet electrostatic precipitators, carbon adsorption systems for solvent recovery, distillation and purification equipment, and thermal oxidation systems.

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

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    Wood Products

    MEGTEC is a leader in providing regenerative thermal oxidizers (RTO) for VOC control for products such as OSB, MDF, SYP, plywood, particleboard, wood pelletizing and other engineered wood products, with particular expertise in solving the problems of media plugging and alkali attack associated with wood dryer exhaust. With thousands of systems installed worldwide in many process industries, MEGTEC has the knowledge to provide you with the best solution for your specific needs. MEGTEC’s designs are modular and cleanable, using alkali-resistant ceramics and corrosion-resistant materials of construction.

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

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    Petrochemical

    Durable regenerative thermal oxidizer (RTO) technology is at the core of our systems. MEGTEC designs and engineers system solutions to meet your special requirements, ranging from energy-efficient treatment of dilute volatile organic compound (VOC) flows, such as tank ventilation, to demanding applications utilizing VOC energy for secondary heat recovery; for example, in the form of process streams. This can include pre- and tail gas treatment systems, and could handle hazardous components such as sulphurous or chlorinated hydrocarbons. For special requirements, we can offer FTO (flameless thermal oxidation) and we can design systems operating safely on oxygen contents below 5%.

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

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    Air pollution control for the pharmaceutical industry

    From pill coating and mixing operations to Ethylene Oxide (ETO) sterilization, Anguil has had great success solving a wide range of emission control applications in the pharmaceutical industry. As companies struggle to comply with the EPA`s MACT (Maximum Achievable Control Technology) standards or international regulations, it is comforting to know that Anguil thoroughly understands your process. Over three decades of experience treating halogenated, VOC and HAP process streams enable us to efficiently solve your pollution control problems.

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

  • Air pollution control for the expanded polystyrene industry

    Removal of pentane and other VOCs from the molding and extruding process – commonly use regenerative thermal oxidizers (RTO) for air pollution control needs.

    By Catalytic Products International (CPI) based in Lake Zurich, ILLINOIS (USA).

  • Gas detection analyzers for pollution control

    Government and environmental groups are forcing industries with medium to high VOC exhausts to reduce emissions by as much as 98%. Incineration using pollution control devices such as oxidizers and flare stacks is one way to bring the exhaust emissions in line with the regulations. Capturing and reusing solvent in a solvent recovery system is another way.

    By Control Instruments Corporation based in Fairfield, NEW JERSEY (USA).

  • Cyanide Treatment with Hydrogen Peroxide

    Cyanides are used in a number of chemical synthesis and metallurgical processes (as simple salts or cyanide complexes). As a class, cyanides are highly toxic and must be destroyed or removed from wastewaters prior to discharge. The most common method for treating free or simple cyanide is alkaline chlorination. However, chlorination of cyanide results in highly toxic intermediates (e.g., cyanogen chloride) and, if organic material is present, chlorinated VOC’s. These compounds, together with the residual chlorine, create additional environmental problems. Consequently, there is a growing need for alternative, non-chlorine methods for destroying cyanides. Peroxygen compounds such as hydrogen peroxide, peroxymonosulfuric acid (1), and persulfates (1) are effective alternatives to alkaline chlorination for destroying free and complexed cyanides. The choice of peroxygen system depends on the reaction time available, the desired products (cyanate, or CO2 and NH3), the types of cyanides being treated (free, weak acid dissociable, or inert), and the system economics. Treatment with Hydrogen Peroxide While hydrogen peroxide will oxidize free cyanide, it is common to catalyze the reaction with a transition metal such as soluble copper, vanadium, tungsten or silver in concentrations of 5 to 50 mg/L (2).

    By USP Technologies based in Atlanta, GEORGIA (US) (USA).

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