Sulfur
A Sulfur Recovery Unit (SRU) uses the industry-standard Claus Process to recover elemental sulfur (also known as "sulphur") from gaseous hydrogen sulfide that comes with refining crude oil, and other by-product gases that originate from refining and natural gas processing. An SRU also reduces the hazardous sulfur emissions to limits permitted by national and local air quality requirements. Zeeco engineers all of the combustion systems used in SRUs.
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Specialty Thermal Oxidizers
Incineration is a thermal process for converting waste gases or liquids to an environmentally acceptable condition. Our systems are capable of achieving 99.9999% destruction efficiency. The basic incineration system is comprised of an auxiliary fuel burner, a refractory-lined chamber, a discharge vent stack, and a control system.
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Regenerative Thermal Oxidizers
Regenerative Thermal Oxidizers (RTO) are a cost-effective solution for destroying volatile organic compounds (VOCs) through a thermal reaction and heat recovery process in high-temperature environments. Thermal ceramic beds are utilized in RTOs to recover heat from hot flue gas, which is used to preheat the incoming waste gas prior to the combustion chamber, minimizing the amount of fuel gas required to achieve high destruction efficiency (DRE). The cooled flue gas can then be safely vented into the atmosphere, limiting the carbon footprint and overall environmental effects.
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Packaged Incineration System
Zeeco designs and delivers the most reliable and efficient combustion and environmental solutions for gas processing applications. Zeeco’s horizontal or vertical packaged thermal oxidizer systems can handle all BTEX emissions, glycol vent gas and/or amine stripper acid gas streams with a 99.999% destruction efficiency. With more than 20 global locations, numerous manufacturing facilities, and an engineering brain trust that is simply unmatched, Zeeco delivers the right thermal oxidizer for your process conditions.
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Air Heaters
A Direct Fired Air Heater effectively heats air, as needed in a variety of heating processes. This equipment is most commonly employed in Fluidized Catalytic Cracker (FCC) units in petroleum refineries. The direct-fired air heater is primarily intended to be used during start-up operations and short feed outages to heat the catalyst bed in the regenerator section of the FCC unit (catalyst regeneration). During normal operation, the air heater is not fired and air flows directly to the regenerator through the air heater without being heated. The mass flow rate and operating pressure during the un-fired condition may vary from that used during the fired case.
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Waste Heat Recovery
A primary advantage of waste heat recovery is the production of usable heat without any additional fuel expense. Because the waste heat recovery equipment draws heat from flue gas that would normally be discharged to the atmosphere, all heat recovered can be utilized to offset the fuel required to produce process heat in other facility operations. Zeeco waste heat recovery equipment improves overall plant economics and plant efficiency.
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