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Catalytic oxidizer :

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Air treatment: Oxidizers, Scrubbers

Recuperative catalytic oxidizer for VOC and NOx reduction Anguil Environmental Systems

The Anguil Catalytic Oxidizer destroys toxic Volatile Organic Compounds (VOCs) that are discharged in industrial process exhausts. The catalytic reactor achieves destruction of the organics by the process of oxidation. The catalyst oxidizes the hydrocarbons to carbon dioxide and water vapor at significantly lower temperatures than thermal oxidizers.

How the Catalytic Oxidizer Works:

The Catalytic Oxidizer is designed based on volume of airflow, organic vapor concentrations and desired destruction efficiency. During operation, VOC-laden air is drawn into the system fan and is discharged into the system's heat exchanger. The air is preheated through the tube side of the heat exchanger and then passes the burner, where the contaminated air is raised to the operating temperature. As the VOC-laden air passes through the catalyst, an exothermic (heat releasing) reaction takes place. The VOCs in the air stream are converted to carbon dioxide and water vapor. The hot, purified air then passes on the shell side of the heat exchanger where the energy released by the reaction is used to preheat the incoming air. The heat exchanger minimizes the system's fuel consumption with the system being self-sustaining at low LEL levels. Finally, the contaminant-free air is exhausted into the atmosphere.

Chlorinated catalytic oxidizer for VOC and NOx reduction Anguil Environmental Systems

Anguil's Chlorinated Oxidizers destroy halogenated organic acids and mixed organic vapor contaminants that are discharged from a variety of industrial process streams.

How the Chlorinated Oxidizer Works
The Chlorinated model is selected based on volume of airflow, contaminant type and desired destruction efficiency. Similar to a standard thermal or catalytic oxidizer, destruction of VOC-laden air is achieved through high temperature combustion with heat recovery to reduce operating costs by preheating incoming contaminants. When halogenated hydrocarbons such as chlorine, bromine and fluorine are present in the process gas, Anguil makes special considerations to design an emission control system that will not only protect against corrosion but also scrub the acids produced during oxidation.

Design Considerations:
*Temperature and residence times are increased to ensure halogen destruction efficiency
*Induced draft fan design is used to eliminate acid gas escape
*Critical components are upgraded to higher alloys to withstand the corrosive emissions
*External shrouds are added or vinyl ester coatings applied to prevent acid corrosion of the external shell
*When special coatings are applied they are subject to pre and post application inspections by a third party
*Acid Gas Scrubbers are incorporated into the system for further treatment of acidic emissions
*FRP (Fiberglass Reinforced Plastics) fan and ductwork are used when necessary

Available Options:
*Thermal, Catalytic or Direct-Fired oxidizers for chlorinated emission control

Regenerative catalytic oxidizer for VOC and NOx reduction Anguil Environmental Systems

How the Regenerative Catalytic Oxidizer Works

Process gas with VOC contaminants enters the Twin Bed RCO through an inlet manifold. A flow control valve directs this gas into an energy recovery chamber which preheats the process stream. The process gas and contaminants are progressively heated in the stoneware bed as they move toward the catalyst bed.

The VOCs are then oxidized across the catalyst, releasing energy in the second stoneware bed, thereby reducing any auxiliary fuel requirement. The stoneware bed is heated and the gas is cooled so that the outlet gas temperature is only slightly higher than the inlet temperature.The flow control valve switches and alternates the stoneware beds so each is in inlet and outlet mode. If the process gas contains enough VOCs, the energy released from their combustion allows self-sustained operation. For example, at 95% thermal energy recovery, the outlet temperature may be only 77° (25°) higher than the inlet process gas temperature.

PLC-based electronics automatically control all aspects of the RCO operation from start-up to shutdown so that minimal operator interface is required.

Anguil's Cost Effective Design
The Regenerative Catalytic Oxidizer is designed as part of Anguil's broad line of technologically advanced, yet user-friendly, air pollution control products. All systems are designed for optimum performance and trouble-free operation.

Anguil strives to provide innovative pollution control technology including process analysis, engineering, equipment manufacturing, installation and post-sale 24-hour service.

Recuperative catalytic oxidizer for VOC and NOx reduction HiTemp Technology Corporation

TYPICAL HTT GAS/ELECTRIC CATOX SYSTEM
HTT shall supply one Fume Incineration System. The system shall use a gas burner or electric heaters to raise the temperature of the exhaust gases to the required operating temperature. This will assure maximum destruction of the VOC in the exhaust gas. The system shall be packaged complete with an integral preheat exchanger, Inconel sheath low watt density heating elements or gas burner, precious metal ceramic type catalyst module, refractory lined processing chamber, and the field installed stack.

CATOX SYSTEM CHAMBER
The Catox System shall be constructed of 304 stainless steel (Note: We use 316 L for HCl solvent applications) and insulated with a combination of Ceramic Fiber and high temperature insulating materials. The refractory shall be installed with SS anchors to maintain integrity. The lower chamber shall be constructed of carbon steel and coated with an acid resistant epoxy coating.

Recuperative catalytic oxidizer for VOC and NOx reduction HiTemp Technology Corporation
8,000 SCFM

Flow Rate : 1000 1500 2000 3000 4000 5000 8000 10K 15K 20K SCFM
Inlet Temp: 70 70 70 70 70 70 70 70 70 70 F
Stack Outlet Temp: 270 270 270 270 270 270 270 270 270 270 F
Catalyst Inlet Temp: 550 550 550 550 550 550 550 550 550 550 F
Catalyst (95%): 1 1.5 2 3 4 5 8 10 15 20 Cu. ft.
Catalyst (98%): 2 3 4 6 8 10 16 20 30 40 Cu. ft.

Recuperative catalytic oxidizer for VOC and NOx reduction Hitachi Power

NOx control systems (DeNOx)

Lowering NOx levels with selective catalytic reduction
Modern power plants reduce emissions to a minimum. For instance, the SCR is deployed following combustion to minimize nitrogen oxide emissions. This modern process produces nitrogen and water vapor; the nitrogen oxides are practically 100% removed.

The SCR technology is used preferably between economizer and air heater since it is here that it can best be operationally incorporated into the overall power plant picture.

HPE provides this DeNOx technology with the delivery of utility steam generators for firing coal.

The main units of a DeNOx plant are:

Ammonia /ammonium hydroxide storage and supply
Ammonia /ammonium hydroxide injection and blender systems
DeNOx reactor with rectifier and sootblower
Catalysts

HPE supplies this units as part of a turn-key installation.

The heart of the process is the catalyst. Plate or honeycomb catalysts are available for deployment in DeNOx systems. All the catalysts on the market can be used in our systems.

Special importance for proper and optimum catalyst operation is attached to ammonia and/or ammonium hydroxide injection and the blender system. The ideal requirements here are created by the static blender system used by HPE with a form of ammonia injection adapted to this blender system.

Regenerative catalytic oxidizer for VOC and NOx reduction HiTemp Technology Corporation

Flow Rate : 1000 1500 2000 3000 4000 5000 SCFM
Inlet Temp: 70 70 70 70 70 70 F
Stack Outlet Temp: 550+ 550+ 550+ 550+ 550+ 550+ F
Catalyst Inlet Temp: 550 550 550 550 550 550 F
Catalyst (95%): 1 1.5 2 3 4 5 Cu.ft.
Catalyst (98%): 2 3 4 6 8 10 Cu.ft.
Destruction Eff.: 95 95 95 95 95 95 % Catalytic
Destruction Eff.: 98 98 98 98 98 98 % Catalytic

Regenerative catalytic oxidizer for VOC and NOx reduction MEGTEC Systems

Catalytic materials enhance the chemical reactions that convert VOCs into carbon dioxide and water. A catalyst does not take part in the reaction, but lowers the temperature required to destroy pollutants. The result is lower operating costs and reduced equipment stress.

MEGTEC offers flexible designs and field-tested, proprietary catalyst formulations. Our experience in a wide variety of industries and firsthand process knowledge enable us to build catalytic oxidizers that offer reliability, effectiveness and low operating costs.

Recuperative catalytic oxidizer for VOC and NOx reduction Epcon Industrial Systems LP

Epcon designs systems to accept various selections of catalyst, and with our own internal catalyst expert can assure correct application of our systems to various process exhaust streams. Customers can count on Epcon to design air pollution control systems or any number of custom systems specific to your process.

Catalytic OxidizerEpcon Catalytic Oxidizers convert process exhaust stream Volatile Organic Compounds into harmless amounts of carbon dioxide, water, and thermal energy - which are then safely discharged to the atmosphere. This process is known as oxidation. Catalytic Oxidation occurs through a chemical reaction between the VOC hydrocarbon molecules and a precious-metal catalyst bed that is internal to the oxidizer system.

Packed bed scrubber SANTONI ELECTRIC CO P LTD

SANTONI offers Gas Scrubbers using a variety of technologies, such as the following:

- Venturi Scrubbers
- Packed Bed Scrubbers
- Combination Venturi-cum-packed bed scrubbers
- Cyclone Scrubbers
- Spray Tower Scrubber
- Orifice Scrubbers
- Fluidized bed scrubbers

Applications:
- Removal of SO2/NOx from boiler flue gas
- Removal of solid particulate matter (SPM) from boiler flue gas
- Dust collection
- Acid fumes from various processes
- Recovery of Chromic acid from Chrome Plating plants

Venturi scrubber SANTONI ELECTRIC CO P LTD

Applications:
- Removal of SO2/NOx from boiler flue gas
- Removal of solid particulate matter (SPM) from boiler flue gas
- Dust collection
- Acid fumes from various processes
- Recovery of Chromic acid from Chrome Plating plants

... products without technical information

Recuperative catalytic oxidizer for VOC and NOx reduction CSM Worldwide

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Air treatment: Oxidizers, Scrubbers

see the results for the following category : Gas analyzers, Portable gas detectors

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