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Sulphur Recovery Burners

Innovation for New and Existing Scenarios

Duiker’s unique approach to the combustion process starts with the high-intensity mixing technology that forms the basis of all our process burners. Examples include extremely efficient process burners such as the Duiker main burner, the Duiker line burner and the Duiker incinerator burner. The mixing characteristics of our burners and chambers result in their extreme reliability, and allow you to achieve the lowest possible emissions. At the same time, our incineration processes have introduced many unique innovations that have led to increasingly economical designs.

In whatever process you apply our technology, the result will be objective advantages from both operational and cost.

Perspectives

  • Low emissions
  • Excellent flame stability
  • High turn-down ratios
  • The ability to deal with upstream upset conditions
  • Low maintenance
  • Low lifetime cost
  • Energy cost savings

A Technological Leader

Sulphur recovery equipment is susceptible to a variety of factors such as feed gas impurities, demands for increased reliability and throughput increases, all of which constantly challenge optimal design and implementation. At Duiker, we use our frequent on-site involvement to provide real-world feedback to our research department. It is a proactive, research-focused approach that does more than just provide solutions to these problems – it also keeps us on the forefront of innovation, and has made us the clear technological leader for combustion equipment in sulphur recovery units.

Tailored Design

Duiker’s team of dedicated engineers has successfully completed thousands of projects worldwide, but we don’t simply provide cookie-cutter solutions. Every company is unique, and has its own set of challenges, so we use the feedback we receive to provide you with the information you need during every step of the project. The advantages are clear: tailored equipment designs that provide optimal process performance, reliability and flexibility. The benefit for your bottom line is clear too: less unscheduled downtime, the prevention of adverse conditions to your downstream equipment and a better performing sulphur recovery unit.

Main Burners

Combustion technology to get the most out of your plant
The main burner is the heart of a sulphur recovery unit, and it plays an integral role in the thermal stage. First, it must generate the correct Claus stoichiometry by transforming one third of the feed gas’ hydrogen sulfide into sulphur dioxide. Second, it must be able to destroy feed gas impurities – mostly ammonia, carcinogenic heavy hydrocarbons and even toxic hydrogen cyanide (also known as prussic acid). The complete destruction of these impurities is important, because they can irreversibly plug condensers, downstream analyzer lines, catalyst pores, and result in low quality ‘grey’ sulphur.

A History of Innovation

Stricter emission regulations and increasingly sour crudes mean that our industry must constantly innovate. One example of this is oxygen enrichment, which was spearheaded by Duiker in the world’s first commercially operated oxygen enriched burners, which are still operating widely today. Continuous design improvements have pushed burner efficiency even further. Lean or rich feeds, impurities, two or two thousand tonnes a day, our main burners will provide optimal results.

A Proven Market Leader

Duiker is the absolute market leader in this technology, and has supplied hundreds of these main burners across the globe–clear confirmation of embedded technology that is valued throughout the industry. A cost-effective solution to maximize performance and safety.

Proper temperature control is crucial during a sulphur recovery unit’s catalytic stage. Duiker’s in-line and TGT burners can achieve a turn down of ten percent, and they lead the field in eliminating soot formation. They also prevent significant corrosion problems at cold spots and ensure a longer catalyst lifetime, which significantly reduces operational costs.

Duiker TGT burners are especially effective at operating efficiently and reliably under sub-stoichiometric conditions, with excellent mixing characteristics. Both burners provide the market’s best performance and safety – they are an incredibly reliable, flexible and cost-effective long-term solution, allowing you to maximize your return on investment.

Line & TGT Burners

A cost-effective solution to maximize performance and safety
Proper temperature control is crucial during a sulphur recovery unit’s catalytic stage. Duiker’s in-line and TGT burners can achieve a turn down of ten percent, and they lead the field in eliminating soot formation. They also prevent significant corrosion problems at cold spots and ensure a longer catalyst lifetime, which significantly reduces operational costs.

Duiker TGT burners are especially effective at operating efficiently and reliably under sub-stoichiometric conditions, with excellent mixing characteristics. Both burners provide the market’s best performance and safety – they are an incredibly reliable, flexible and cost-effective long-term solution, allowing you to maximize your return on investment.

Incinerators

Internationally recognized burners for improved plant performance
These days, all companies have to consider environmental problems such as global warming and the pollution of air, water and soil. Duiker has worked hard to create solutions that help companies meet increasingly stringent emission legislation. However, our solutions also incorporate features that improve overall plant performance and operation, delivering cost savings into the mix.

Many Duiker incinerators differentiate themselves from conventional incinerators through the use of multiple vortex mixing technology. This creates excellent mixing characteristics, ensures complete combustion, and economizes incinerator chamber design – saving fuel consumption. These qualities, along with unparalleled reliability have made Duiker’s burner portfolio internationally recognized. They will allow you to achieve the lowest possible emissions.

NH3 Incinerators

Innovation for new and existing scenarios
Our incineration processes have introduced many unique innovations that have led to increasingly economical designs. One such innovation is our ammonia incineration process. This process separately incinerates the NH3-bearing stream, eliminating the NOX and NH3 emissions that are normally associated with ammonia incineration.

The results are lower capital expenditure due to a smaller sulphur recovery unit, reduced maintenance resulting from the prevention of salt formation in the Claus unit, a robust process which makes the entire unit much more capable of dealing with upset conditions upstream, lower stack emissions and energy cost savings. The best part? This process isn’t just intended for new sulphur recovery units – it is especially suitable for debottlenecking existing plants.

Industrial Burners

Efficiency improvements and reduced operational costs
Duiker has an extensive portfolio of industrial forced draft burners for process heaters, furnaces and industrial boilers. These burners have been fine-tuned through proven technology to minimize emissions as well as economize design. Capable of firing both liquid and gaseous fuels, they apply a high intensity swirl to generate an extremely stable turbulent flame, which in turn provides excellent performance at low excess air levels. This leads to considerable efficiency improvements and a reduction in operational costs.