John Zink Hamworthy Combustion (JZHC) successfully delivered the SOLEX burner combustion system, achieving less than 5 ppm NOx emissions and nearly zero CO emissions across a broad range of operating conditions.
The SOLEX™ combustion system is JZHC’s next generation NOx technology industrial burner for process heaters in general refining service, designed with two combustion zones to achieve single digit NOx emissions without traditional post-combustion treatment methods, such as selective catalytic reduction (SCR).
GS Caltex, the fourth largest refinery and largest aromatics producer in the world, wanted to reduce overall emissions at their Yeosu, South Korea site. They requested JZHC review the application and offer a solution for reducing CO and NOx emissions, while also eliminating SCR expenditure, in No.3 HOU Vacuum Residue hydrocracker, 612F – 401, a twin cell horizontal box process fired heater with common convection section.
The operator required less than 9 ppm NOx and no CO emissions across a wide operating range, without requiring an SCR.
To achieve the desired reduction in emissions, JZHC provided 32 SOLEX burners and associated combustion controls as a system solution.
• Minimal changes reduced overall installation cost and time
• Reduced operational expenses (OPEX) on SCR by $150,000
• Reliable with significant variation in unit operation
• Achieved continuous single-digit NOx emissions below 5 ppm
• Included burner optimization through next-generation advanced process controls
The existing 612F – 401 heater, a vacuum residue hydrocracker, is a twin cell horizontal box heater with a common convection section. This fired heater operated with 32 conventional low NOx burners. To comply with the recently updated local emission regulation, the heater had been upgraded to fire fuel gas only with an SCR, but GS Caltex wanted to reduce emissions further, targeting a NOx guarantee of single-digit ppm.
Discover the transformative SOLEX™ Combustion System – an industry-leading solution that achieves outstanding emissions performance without the need for traditional post-combustion treatments. With NOx emissions below 5 ppm and almost zero CO emissions across a wide range of operations, including ethylene processes, this technology is a game-changer for process burners.
