Figure 2 Scaling of process tubes
Figure 3 Convection section fouling
reductions in emissions. In steam methane reformers (SMRs), NOx reductions of up to 30% have been observed. Robotic convection cleaning TubeTech’s unique robotic cleaning system is capable of reaching up to 90% of convection section tube surfaces during planned turnarounds (see Figure 4 ). This technology removes fouling with greater consistency and without damaging the underlying metallurgy, enabling facilities to recover lost thermal efficiency and avoid regulatory penalties. On average, clients report a 3-5% increase in thermal efficiency and up to 15% reduction in CO₂ emissions.
Online repair and inspection Hot-tek Services provide online inspection, maintenance, and repair, including tube stabilisation, refractory repairs, and selective catalytic reduction (SCR) cleaning while the heaters are operating, with no interruption to production. These services eliminate unplanned outages and extend asset life. Additionally, regular Lancescope inspections and infrared (IR) thermographic inspections help identify anomalies early and guide preventive maintenance. HVTS alloy cladding For components exposed to corrosive process environments, such as amine service or sour water applications, High Velocity Thermal Spray
Lance is used on triangular and square pitch studded, finned or bare tubes
Robot cleans from the top of each convection bank
Robot is placed on top of each tube bank through existing or pre-installed access doors
Almost 100% of every convection bank can be cleaned no matter the level of fouling
Cleaning medium directed to precise location of fouling
Extendable cleaning wand
Figure 4 Ways the robotic system can access every tube row
Refining India
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