Enclosed Combustion Systems
Emissions Reduction Equipment
OUR UNITS ARE DESIGNED TO COMPLY WITH THE MOST STRINGENT REGULATIONS AND ARE CUSTOMIZED TO MEET SPECIFIC REQUIREMENTS GIVEN BY PROJECT SPECIFICATIONS.
WE CAN PROVIDE HIGH DESTRUCTION EFFICIENCY, 99,99% OR HIGHER, DEPENDING ON REGULATIONS AND REQUIREMENTS. WE DESIGN THERMAL OXIDIZERS ASSOCIATED WITH RECUPERATIVE SECTIONS: WASTE HEAT BOILERS, STEAM GENERATORS, OIL HEATERS, AND OTHER HEAT RECOVERY SOLUTIONS.
Applications
Applications- Certified Ultra Low NOx Emission Burners – CEB
- Thermal Oxidizers
- Tail Gas Incinerators
- Catalytic Oxidizers
- Recuperative Solutions / Regenerative Thermal Oxidizers
- Flue Gas Treatment Units
- Vapor Combustion Units
- Enclosed Combustors
Features
- Forced, natural, or induced draft applications
- API 560, API 673, local, regional, and international standards
- ASME codes; ASME VIII Div. 1 pressure vessels, ASME I for boilers
- Stacks designed per STS-1, Eurocodes, Gost, CICIND, and many other structural & vessels codes
- Fuel gas skid/trains conform to EN 746-2, or NFPA-85 and may include detonation arrestors
- Blowers: Zone 0, Zone 1 per IEC 60079-1 or Atex 1G/2G respectively either for internal and external classification with emergency shut-down valves as per EN 161 for gases or ISO 23553-1 for liquids
- Up to SIL-3 design with all safety instrumented systems (SIS) according to functional safety standards IEC 61508 and IEC 61511 and full segregation between safety and controls
- Cabinets, instrumentation, & valves per IEC 60079-10-1 and to conform CSA, ATEX, KOSHA, etc
- Flame monitoring, continuous emission monitoring (CEMS), and many other engineering solutions
- Auto-reignition and performance monitoring capability
Enclosed Combustion Systems are designed to enhance safety and reduce fuel costs by burning vapors within a temperature-controlled chamber. Our units are designed, engineered, and manufactured in Europe.
Advantages
- Our advanced technology provides low NOx and ultra-
Low NOx burners - Nearly zero emissions of VOCs, CO, H2S, Mercaptans
- Flue gas treatment package, such as de-NOx systems:
SNCR, SCR - Filtration units, scrubbers to remove Sulfur dioxide,
HCl, Cl2, and many others - Engineered and manufactured in Europe
Certified Ultra Low NOx Emission Burners - CEB
Our Certified Ultra-Low Emission Burner (CEB) is based on a unique and patented pre-mix metal fiber surface thermal oxidation technology with premixed surface combustion system. The oxidation of VOCs and any other harmful gaseous compound occurs at temperatures in the range of 1100°C - 1300°C in the presence of large excess air levels providing exceptionally high destruction and combustion efficiencies and ultra-low levels of NOx in the flue gases. The enclosed combustion zone lined by ceramic fiber layers prevents discharge of heat and light towards surroundings. Our CEB units are available for thermal powers of 0,5 to 45 MW. Higher thermal powers are attainable by combining multiple units in a multi-array configuration with a minimum plot plan area engagement.
Thermal Oxidizers
Our FIRECAT™ Thermal Oxidizers are designed to safely dispose of hazardous and non-hazardous wastes either in gaseous or liquid phase by high temperature oxidation processes in excess air. Thanks to our design expertise the highest destruction efficiencies on abatement of VOCs, BTEX, and many other compounds, are attained with cost-effective solutions and low utility consumptions. Our thermal oxidizers incorporate heat recovery equipment to reduce further operating costs by providing steam (saturated, or superheated), hot oil, and flue gas treatment units, when applicable.
Tail Gas Incinerators
We supply incinerators for the thermal oxidation of tail gases resulting from the SRU Claus units, which load of sulfur compounds such as: Hydrogen sulfide, carbonyl sulfide, carbonyl disulfide, mercaptans, and others are converted into sulfur dioxide and sulfur trioxide. This incineration process is typically conducted in the temperature range of 650°C - 850°C depending upon the emission levels of carbon monoxide and VOCs in the presence of excess oxygen – minimum 2%vol in the gaseous flue gas effluents. The SRU Tail Gas Incinerators are always associated with a heat recovery solution to make the whole installation more energy sustainable. For the same Claus process, we design and supply reaction furnaces, acid gas burners, including the supply of downstream waste heat boiler (WHB), and Direct Fired Air Heaters.
Catalytic Oxidizers
Our Catalytic Oxidizers efficiently eliminate hazardous pollutants such as volatile organic compounds. The catalytic oxidation is applied to lean streams characterized by very low Lower Heating Value with typical values in the range 10-20 BTU/scf. The organic load is efficiently oxidized on a catalyst at 300°C - 400°C resulting in remarkable savings in terms of support gas consumption. The destruction efficiency, up to 99,9%, can be achieved with minimum support fuel requirements reducing the overall emission footprint.
Recuperative Solutions
High fuel cost is perhaps the most distressing concern when considering which type of thermal oxidizer to choose. One way to hedge this variable cost is to employ some form of heat or energy recovery. FIRECAT™ Recuperative Oxidizers employ shell and tube heat exchangers, boilers, or hot oil heaters to take advantage of the heat available in the flue gases. In this way, flue gases constantly heat oil, create steam, or preheat waste gases and combustion air, thereby reducing fuel gas consumption.
Regenerative Thermal Oxidizers
Our Regenerative Thermal Oxidizers (RTOs) solutions are utilized to safely dispose of a gaseous waste effluent from a Vapor Recovery Unit (VRU) or any other emission source. Our RTOs provide DRE of 99,5% or higher on VOC emissions and allow for very low support gas consumption and large heat recovery. The designs allow for 90% - 95% heat recovery efficiency minimizing operating costs.
Flue Gas Treatment Units
Depending on the applicable regulations, we engineer Flue Gas Treatment Units as part of a thermal oxidizer package. When low NOx burners do not allow compliance with the emission limits of nitrogen oxides, we can supply de-NOx systems based on selective noncatalytic reaction or selective catalytic reaction. Our units can be customized with quencher, wet scrubbing, dry scrubbing, bag houses for filtration, and other technologies.
Vapor Combustion Units
Our Vapor Combustion Units (VCU) perform thermal destruction of hydrocarbons and VOC in general, contained in the vapors displaced by “end-of-pipe” operations, i.e. truck/rail car loading, ship loading, storage tanks out-breathing. As a hybrid application between a thermal oxidizer and a ground flare, combustion occurs in an opened-top stack. The required “destruction rate efficiency” (DRE) is ensured by proper residence time, efficient mixing, and continuous temperature monitoring of the exhaust gas leaving the stack.
Enclosed Combustors
Our units are an efficient, cost-effective solution to clients who need to comply with emission regulations in an enclosed configuration, while disposing waste gases. Our units can achieve up to 99% percent destruction and removal efficiency of harmful emissions.
