Optimizing heat flux distribution to prevent heater tube coking with dual emissivity Cetek coatings
Cetek’s patented Dual Emissivity Ceramic Coating technology manipulates and optimizes the heat flux distribution in DCU heaters which would otherwise be susceptible to coking inside tubes.
We designed the dual emissivity coating system to maximize benefits based on the coking pattern of the Delayed Coker firebox.
The process consists of the application of coatings to the refractory. We also remove all tube scale, and install a uniform ceramic coating system to the tube surfaces.
This dual emissivity coating system effectively shields the tube surfaces in high heat flux areas but increases heat absorption in lower heat flux areas. This prevents rapid coke formation while at the same time eliminating uneven scale formation, thus allowing accurate tube metal temperature measurements.
Benefits of Dual Emissivity Coatings for Delayed Cokers
Optimized heat flux distribution:
- Slow tube coking
- Slower scale formation
- Increased run length between de-coke activities
- Decreased maximum tube metal temperature
- Reduced fuel consumption
- Rapid payback
- Improved heater reliability
We Apply Dual Emissivity Coatings Worldwide
The coatings are applied by Cetek’s highly trained, experienced technicians, following thorough cleaning of the tube surfaces. Coating systems are available for every type of metal and refractory substrate as well as process temperature.
The coatings are inert, non-catalytic, and water-based, offering a complete environmentally safe process improvement.
The service is supported by a superior Health & Safety Program, yielding a safety record better than industry standards.
Sponsor:
Categories:
Other Videos
-
Cleaning convection section tube banks remotely with no-man entry rover
Scott Donson of Tube Tech explains how a no-man entry rover achieves up to 95% cleaning of the surface area of convection sections, surpassing the effectiveness of chemical spraying or general washing methods.
-
The latest innovation in fired heater convection section cleaning
Our team of designers and project managers delved into the introduction of the new robotic furnace convection cleaning system. We explored: Achieving a 90% clean convection section, reducing stack temperatures, and improving furnace efficiency. The workings and features of the new robotic system.
-
Robotic Technology: high-nobility alloy cladding on pipe internals
Transporting untreated wet gas poses significant corrosion risks to pipelines. The presence of corrosive contaminants such as H2S and CO2 in oil and gas pipelines can severely damage key pipeline assets such as finger slug catchers, flare lines, and wet gas pipes by the corrosion of carbon steel surfaces. ...
-
Why energy companies partner with IGS
Watch our latest video on why energy companies choose to partner with IGS for surface protection, with industry experts discussing trust and transparency, in-house R&D and turnkey application, robust protection programs, and access to a global expert team.
-
How a refinery improved their CCR catalytic reformer unit efficiency by 9%
A refinery in South Africa was experiencing high bridgewall temperature in their CCR unit because of process tube scaling. They needed a solution with a clear return on investment. Watch the video to see how this was accomplished.
-
Enhanced SMR efficiency: fuel & emissions reduction delivers a sustainable decade-long benefit
Furnace Efficiency Specialist Larry Emch recalls an application where IGS reduced SMR fuel consumption by 2%, leading to lower CO2 and NOx emissions. This sustainable decade-long benefit was achieved with the application of a Cetek refractory encapsulation coating within the SMR's radiant section.
By ...
-
How IGS solutions increase refinery efficiency and reduce Co2 emissions
Edwin Blom, Executive Advisor of IGS, discusses the importance of reducing CO2 emissions for refineries and the various solutions that can help achieve this global initiative while maintaining high refinery efficiency.
-
What makes MK7 the most advanced fired heater convection section no-man entry cleaning rover?
Introducing the IGS Tube Tech MK7 rover system, the next generation in autonomous cleaning technology, capable of removing more than 90% of fouling and restoring your fired heater convection sections to their original design thermal efficiency.
Developed through extensive research and development, ...
-
Furnace convection section robotic cleaning improves energy efficiency
Excessive fouling in the convection section of fired heaters and furnaces results in higher fuel consumption to achieve the required output. This causes high stack temperatures, reduced heat transfer, and increased emissions, which can lead to government fines and environmental damage. Fouling occurs ...
-
How to fix a tube in a fired heater furnace without SD - Hot Tube Stabilization
Occasionally, tube supports (wall and roof) in the radiant section of process heaters fail, allowing the process tubes to potentially get out of alignment (sagging or bowing) or even worse, rupturing.
IGS Hot-tek provides on-line repair service to stabilize the process tubes while the heater ...
SPONSORS