Intero decoking technology

Regular cleaning and inspection of heaters increases reliability and continuity. Knowing the remaining wall thickness of the tubes gives you control of the life-cycle of the heaters/furnaces and prevents unexpected shutdowns. Intero Integrity Services’ heater decoking solutions are based on advanced pigging technology to remove cokes and scale without eroding the heater tubes. With our services we minimize shutdown time and reduce environmental emissions.

One of the major challenges plant operators are facing is the continuous build-up of coke deposits along the inner wall of heater tubes. Without service and maintenance, these coke layers grow in thickness, restricting flow of process fluids and increase pressure across the heater. In addition, coke deposits act as an insulator, reducing heat transfer from the tube to the process fluid. This results in reduced heater efficiency and higher operational costs.

Heater decoking offers you:

  • Increased profitability
  • Lower production costs
  • Increased furnace capacity
  • Increased heat exchange
  • Increased flow
  • Reduced hotspots
  • Longer tube life
  • Lower differential pressure
  • Decreased energy consumption

Over the years we have successfully executed numerous heater decoking projects. Based on our extensive industry knowledge and experience, we have developed a superior decoking service that will safely and reliably remove coke deposits from heaters/furnaces.

When combining our heater decoking services with our Heater Surveyor inspection technology, we can guarantee the cleanliness of the heater tubes by performing a Coke scan. During the cleaning, verification runs are used to demonstrate the cleanliness of the tubes in order to optimize the decoking process and reducing decoking time. After the cleaning has been completed, we can run our Heater Surveyor that will provide you with the remaining wall thickness of the heater tubes and the integrity of the heater. Combining our cleaning and inspection services minimizes shutdown time, reduces unplanned stops and optimizes performance of your heaters.

    Why use Intero Integrity Services' furnace decoking technology?

    • Efficient, safe and reliable
    • Reduces shutdown time
    • Allows optimization of heater operation
    • Reduces energy consumption
    • Environmental friendly
    • Determination of abnormal coking areas
    • Simultaneous cleaning and inspection

    Our Heater Decoking Service incorporates the latest developments in pigging technology to be able to remove cokes and scale without eroding tubes. Intero Integrity Services developed its own resilient and flexible pigs that can navigate pipe systems which have short radius elbows, U-bends, boxes or plug headers, while the high tech studs remove the coke layers.

    Our services ensure thorough cleaning of the heater tubes without blocking them.

    Our double pass units are set up to allow the collection and examination of coke samples for accurate composition and structural analysis. By regularly examining the amount, size and hardness of your heater cokes, it is possible to determine their characteristic history. This valuable information leads to extended run-lengths, reduced maintenance costs, improved reliability and minimal operational costs.

    After completion of the decoking operation, a full report is presented containing information about the condition of the heater and details of the decoking operations.

    Our extensive industry knowledge, combined with our experienced crews and readily available resources at Intero Integrity Services, means we offer the latest in decoking and inspection technology to provide innovative and flexible solutions to optimize furnace performance.

    Our solution for all furnace types

    Heaters with a single diameter and u-bends are easy to clean and inspect due to their straight forward design.

    More specialized configurations such as plug headers, boxes, horseshoes and reducers however require a specialized approach in order to clean the heater tubes.

    Regardless what kind of furnace you have, if pigging is an option, we have the tools and expertise to clean it.

    Gasification units, such as the one pictured here require frequent cleaning. However, these units can be challenging due to their spiral configuration and reducers. Only high quality equipment, sophisticated procedures and experienced operators are key for a successful heater decoking operation.