Overview of Catalytic Recuperative Oxidizer

Epcon’s Catalytic Oxidizers destroy 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 Recuperative 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 exothermicreaction takes place as the VOCs 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.

System Components

Catalytic Oxidizer Systems include a heat exchanger, modulating burner, fuel train, catalyst bed, fan, motor, fresh air start-up valves, flanged inlet and outlet, system controls, temperature recorder, first-out shutdown detector and exhaust stack. The system has a weather-proof, insulated steel outer skin with access doors that allow service to all internal parts.

Catalytic Recuperative Oxidizer System Schematic

Options

·         Remote monitoring/communication package 

·         Secondary heat exchanger 

·         Alternate fuel/power supplies 

·         Continuous Emission Monitors 

·         U.L. Control panel 

·         Custom systems available 


Safety Shutdowns

The system will shut down safely and automatically if any of the following occur:

·         Electrical power loss to the control panel 

·         Loss of proper air flow 

·         High/low temperature or gas pressure 

·         Flame-out of the burner 

·         System operation above 25% LEL 

Comments

Post a Comment

Popular posts from this blog

Aluminum Processing Industrial Equipment

Image
Aluminum Industry Overview Epcon has a long history of providing process and environmental compliance technology solutions to the Aluminum industry. Up and down the value chain, Epcon has delivered innovative solutions for primary and Secondary metal processing , Scrap metal recycling, Aluminum coil/sheet coating, Cast, Forged and Extruded Aluminum Parts Heat Treatment as well as Aluminum Parts Coating applications. Our experience team handles every aluminum application from anodizing, burn out processing, to normalizing ingot logs and coil bundles. Epcon is a leading provider of proven Thermal Oxidation , Thermal Processing (Thermal Deoiling, Ovens & Furnaces) and Finishing Systems to some of the world’s leading Producers of Aluminum Materials and Products.  Having worked with some of the largest producers in the aluminum Industry, Epcon is a trusted supplier of lasting equipment, custom engineered to be the cost effective, environmentally sound solution on the mark...
Read more

Afterburner with Quench & Scrubber for Petrochemical Operations

Image
The Challenge A leader in Latin America’s Chemical and  Petrochemical Industry  needed equipment to oxidize Hydrogen Sulphide and removal of SO 2 /SO 3 . The chemical plant generated large quantities of exhaust enriched with H 2 S, water vapor and air, which were costing the facility exorbitant amounts to properly dispose of . The company went out seeking the technical solutions and went to several  manufacturers  to locate the best possible technology. The Solution  Epcon has built several systems for Chemical companies for similar applications for removal of H 2 S and acid gases and used their prior experience to asses the appropriate technology. Epcon evaluated several technologies and decided on an Afterburner with Quench and Scrubber as the best solution for this application. Other types of oxidizers can be used, but based on their small flow and high heat release from VOC’s we chose an Afterburner. Epcon also designed and installed Quench ...
Read more

Coil Coating Line with Regenerative Thermal Oxidizer and Multistage Heat Recovery

Image
The Challenge A Coil Coating operation utilized an old direct-fired afterburner and a portion of the exhausts gas to heat a 100’ long curing oven, operating at line speeds up to 700ft/min The Solution Evaluating the appropriate oxidation system for a specific process stream is more challenging and requires in depth analysis of the specific process gas and operating parameters, as there are many configurations to choose from. A Direct Fired Afterburner, sometimes called an incinerator, is the most elementary system, as it contains no heat recovery system. Ideal for high VOC levels and fluctuating operating conditions. Thermal oxidizers are more sophisticated systems with a variety of heat recovery systems and configurations, typically used for larger process air flows.  Regenerative system, which uses media to absorb and transfer heat, was selected for this application.  In addition they are not steady-state, Instead they rely on a cycling gas, which flows ...
Read more