CLEAN COMBUSTION. CLEAR SOLUTIONS.™
John Zink Vapor Combustion System
The John Zink Advantage A Commitment to Excellence John Zink engineers can design VCUs to meet worldwide mechanical and electrical standards such as ASME, ANSI, DIN, ATEX, EN, NEC, IEC, and CENELEC. John Zink has earned International Organization for Standardization 14001certification for its environmental management system; received the Occupational Health and Safety Assessment Series 18001, an independent accreditation for its safety management system; and earned the international quality standard ISO 9001:2000 certification John Zink Company, LLC is a world leader in the development of advanced combustion technologies and environmental systems that help make your operations cleaner, more efficient, and less expensive. With its wide range of vapor combustion systems and services, John Zink provides petrochemical terminals around the world with
for its overall quality management system. The U.S. Occupational Safety and Health Administration (OSHA) confirmed John Zink’s STAR Voluntary Protection Program (VPP) certification after conducting a comprehensive review of the company’s safety and health management systems.
state-of-the-art solutions to control emissions from such sources as storage tank vents; truck, rail car, and marine loading operations; process vents; and tank cleaning/degassing activities. John Zink is committed to providing comprehensive technical and business solutions to our customers.
With our superior
combustion design capabilities and worldwide manufacturing and service, we can help you increase output and improve efficiency while preserving the environment.
Headquartered in Tulsa, Okla., John Zink Company is the world leader in advanced, low-emission combustion and environmental systems.
John Zink’s Vapor Combustion Versatility John Zink Vapor Combustion Units (VCUs) utilize wellunderstood and proven technology which has been successfully used in numerous gasoline, ethanol, diesel, and other hydrocarbon applications including: • Truck and rail car loading • Barge and ship loading • Storage tank transfer and breathing • Barge and tank degassing • Reactors, dryers and other process vents • Pipeline breakout stations • Soil remediation and groundwater cleanup • API separators and other wastewater vents John Zink VCUs combine the latest developments in vapor combustion technology with the best attributes of previously proven designs. Simply stated, they are often the most effective vapor control solution available.
Performance You Can Count On John Zink VCUs have been recognized by the U.S. Environmental Protection Agency as Best Demonstrated Technology (BDT) and Maximum Achievable Control Technology (MACT) for hydrocarbon vapor control. John Zink VCUs can achieve volatile organic compound (VOC) destruction efficiencies greater than 99 percent, resulting in hydrocarbon emissions less than 10 milligrams per liter of product transferred. In addition, our VCUs satisfy all the applicable requirements of 40 CFR 60.18. Combustion is effective even on light hydrocarbons including methane and ethane. John Zink VCUs do not require any special fluids or materials for operation. Other technologies may require substances such as refrigerants, coolants, lube oils, catalysts, adsorbents or absorbents that involve special handling and disposal procedures.
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Equipment You Can Rely On Enclosed combustors completely hide the flame while combusting hydrocarbon vapors in a controlled manner. Temperature control via thermocouples, controllers, and quench air dampers reduces fuel consumption and achieves higher destruction efficiencies. Skid mounted components reduce field installation time and cost. An enclosed stack can be flanged with the lower section skid mounted to save you even more. Detonation arrestors provide primary flashback protection. In marine loading applications, John Zink works with the Coast Guard to provide a liquid seal exemption based on our proprietary burner and operating procedure. Anti-flashback burners are designed for the safe combustion of explosive mixtures that are unsuitable for standard burners. The proprietary burners help prevent flashbacks, and provide stable combustion over a wide range of flows and concentrations.
Reliable, energy-efficient pilots provide a stable, continuous ignition source for the vapors. An automatic ignition assembly and a continuous flame monitor are included. A vapor blower package can be provided in cases where the vapors have insufficient pressure.
A single integrated system
transfers and combusts the vapors. Open-flame combustors are a low-cost alternative when a visible flame and its resultant noise and radiation are not concerns. Open-flame combustors are capable of destruction efficiencies of 98 percent.
Fuel Gas Savings You Can Bank On The Vapor Equalizer™ can be supplied for gasoline or distillate vapors to reduce or eliminate auxiliary fuel usage by collecting gasoline vapors when rich, enriching vapors when lean, and averaging out vapor concentrations. A separate assist gas burner reduces fuel use for inert vapors, especially when vapors are lean. Premixing fuel with highly-oxygenated lean vapors can reduce fuel gas usage. For higher turndown requirements, staged combustion and multiple assist air blowers, reduce the amount of fuel gas required. A stable burner design allows emission requirements to be met at lower operating temperatures. Temperature control utilizes independent controllers for the fuel gas and quench air, allowing a lower temperature set point to be used for the fuel gas.
A John Zink Vapor Equalizer
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Process You Can Depend On John Zink Vapor Combustion System
1
ENCLOSED COMBUSTOR
A local or remote start signal is received, starting the assist air blower to purge the combustor of any existing combustibles.
SAMPLE PORTS THERMOCOUPLER
1 CERAMIC REFRACTORY
2
4
After the purge, the pilot ignites and must be confirmed by the flame scanner in order for the operation to proceed.
Large systems introduce the vapors into the combustor in stages to achieve higher turndown and optimum performance.
STACK FLANGE FLAME SCANNERS ANTI-FLASHBACK BURNERS
3 VAPOR
SIGHT PORTS
Vapors pass through the vapor shutdown valve and detonation arrestor to be introduced into the combustor through the anti-flashback burners and are ignited by a pilot.
VAPOR SHUTDOWN VALVES
3
2
5
PILOTS DETONATION ARRESTORS
3
An assist air blower provides a portion of the combustion air and mixing energy to ensure smokeless combustion of the vapors.
ASSIST AIR BLOWER WITH DAMPER
5
ASSIST AIR
4 6 FUEL GAS SHUTDOWN VALVES
FUEL GAS
QUENCH AIR
ASSIST GAS CONTROL VALVE
SKID
6
6
The assist gas control valve and quench air dampers modulate independently to maintain the combustor temperature.
The JOHN ZINK® Difference Flexibility John Zink VCUs can be used on a wide variety of hydrocarbon vapors, including gasoline, ethanol, diesel, and jet fuel, many simultaneously.
Simple Operation and Maintenance With simple control systems, few moving components and minimal spare parts, our VCUs result in extremely low
Exceptional Service John Zink’s service organization is the largest, most technically savvy team of its kind. Our service technicians are trained in the latest technologies to evaluate existing systems for upgrades and retrofits, to troubleshoot operations, and to help plan the customer’s next turnaround. • Scheduled preventative maintenance • Emergency call-out available 24 hours per day, 7 days per week
operating and maintenance costs.
• Equipment retrofit packages to keep equipment up-to-date,
Start-up Assistance and Training
• Start-up assistance
John Zink’s engineers and technicians assist in VCU start-ups and personnel training to ensure safe operation, prevent equipment damage and extend operating life.
Continuing Education Comprehensive vapor control courses held at the John Zink Institute help vapor control operators and engineers optimize SM
improve efficiency, and/or increase capacity • Installation assistance
Equipment Rentals John Zink Portable Emission Control Systems (PECS®) are self-contained, trailer-mounted rental units available to accommodate temporary site issues related to turnarounds, remediation, maintenance, overloads or upsets.
their equipment and address issues at their facilities.
worldwide service and support
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CLEAN COMBUSTION. CLEAR SOLUTIONS.™
www.johnzink.com
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