Kenilworth Combustion Corporation
Booth: 1039
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Lloydminster, Alberta T9V 3C4, Canada
Telephone: (780) 744-3974
http://www.kenilworth.ca
At Kenilworth Combustion our focus and commitment is on providing our clients with the absolute best in innovative combustion products and service. As a proud provider and manufacture of Natural Draft Combustion equipment we have developed approximately 30 variations of our Process Heater Modules. All are designed for CSA B149.3-10 code compliance and ease in installation, to fit a wide variety of applications. These modules are prebuilt and include BMS (burner management system), Valve Train, Burner, Firebox and Function Pretesting to insure quality and performance. Installation is simple, mount the module to the fire tube, and connect to electrical and gas supply.
Working with oil and gas industry leaders, Kenilworth is constantly setting higher standards extending the boundaries for safe, efficient and economical combustion products
Description of technology
Kenilworth Combustion Low Pressure Flame Scavenge Burner
Offers low NOx emissions while maintaining high efficiency (75-80%). The Flame Scavenge Burner achieves this by recycling flue gas. This also effectively reduces flame temperature, which reduces NOx emission, while keeping CO levels down. The recycling of flue gas also has an added benefit when running the burner on a solution gas, the temperature of the flue gas insures that “wet” solution gas cannot freeze the orifice shut causing flame failure.
Additionally because of the temperature increase in the inlet temperature the burner is also capable of duel fuel combustion (the burner can switch between fuels). This duel fuel compatibility is caused by the gas expansion that occurs in the burner barrel this allows for better atomization when combusting raw or processed gas, better atomization leads to more complete combustion.
Description of technology
The Exhaust Recycle System utilizes exhaust directly from the stack side of the burner tube. A pipe is inserted into the tube to capture the flue gas before it goes up the stack. This captured flue gas is then piped directly into the mixing chamber of the burner (see drawing). By recycling the flue gas back into the mixing chamber an increase in atomization of the fuel gas occurs. The immediate benefit of this is a more complete combustion, the ability to operate at lower fuel supply pressures and preventing freezing in the mixer. Other characteristics/benefits of the exhaust recycle burner are as follows:
• Increased velocity and flow throughout the tube
• Reduced O2 content in the exhaust flue gas reducing NOx which is vital in reducing the industries Carbon Footprint.
• Increase in fuel atomization allows us to promote more complete combustion.
• Operate at lower fuel supply pressures; eliminate freeze-off in the mixer and orifice when operating on wet solution gas.
• Makes it possible to operate the Exhaust Recycle burner on multiple fuels containing dissimilar BTU values without operator intervention when set up properly during the commissioning process.
The system is also very quiet in comparison to a conventional system. The average for an exhaust recycle system is in the 76-82 decibel range. We are also able to run higher efficiencies than conventional burner systems as we increase the flue gas velocity with the exhaust recycle system without increasing the stack discharge volume and temperature.
Description of technology
VRU Burner system
Saturated gas containing water and hydrocarbon liquids vents off the top of the tank or tank farm on site and is collected then piped to a condenser tank(at ounces) where allowed to condense out. The gas is then piped to the burner system for use as fuel. The VRU fuel supply system is designed so that the saturated vent gas coming off the tank will act as the primary source of fuel. Propane, casing gas or line gas sourced from a secondary supply acts as a back-up when additional heat is required.
The Triple Stage Burner is a unique configuration which allows high pressure gas in through one port on the mixer, low pressure VRU fuel in through a second and hot flue gas in through the third port. The HPFG (3-10psi) is the back-up supplying 20% of the fuel. The LP VRU (4-12oz) is 80% of the fuel supply. (see drawing) It is mandatory that heat trace and insulation be installed to prevent freezing of the supply lines. Through the use of the Triple Stage Burner and BTEX valve train the fuel gas is supplied to the burner in the range of 4-12oz and burned.
Description of technology
BTEX Burner system
Saturated gas containing BTEX vents off the glycol re-boiler stack and is collected and piped to a 100 bbl condenser tank where water and hydrocarbon liquids are allowed to condense out. This gas that collects in the condenser tank and is then piped to the glycol re-boiler burner system (only ounces are needed) for use as fuel. The re-boiler burner fuel supply system is designed so that vent gas containing BTEX acts as the primary source of fuel and sweet dry fuel gas sourced from the facility supply header acts as a back-up when additional heat is required.
Testing has shown over 99% of all BTEX gas is destroyed during the fuel combustion process. The external piping that connects the glycol re-boiler stack, condenser tank and the re-boiler burner is heat traced and insulated to prevent freezing. Through the use of the Low Pressure Flame Scavenger burner and BTEX valve train the fuel gas is supplied to the burner in the range of 6-12oz and burned.
