December 2, 2008
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Home / Tech Trends / Magikrot Performs Hydro-mechanical Cleaning of Oil Stills’ Soaking Sections

04.09.2008

Magikrot Performs Hydro-mechanical Cleaning of Oil Stills’ Soaking Sections

The method of mechanical cleaning with the help of a plastic scraper is known outside Russia and is widely applied by many companies all over the world to solve the problem of decoking and remove nonorganic deposits from the inner surface of the soaking section pipes in the refining and petrochemical furnaces. Foundation for this method was laid by the Canadian inventors, when they were searching for a highly effective method of decoking, alternative to the steam-and-air burning-off.
MAGIKROT (the ëTK-EURO Group) is the only company experienced in introduction of this technology in the Russian market. Main advantages of application of the pipe mechanical cleaning method at petroleum refineries and petrochemical plants include:
high efficiency of this method of cleaning;
considerable reduction of operation time (more than twice compared to the steam-and-air burning);
operations safety;
significant saving of petroleum refinery’s energy resources in the course of cleaning;
the cleaning technology is safe for pipes and causes no damage;
application of this method ensures removal of foreign objects from the furnace sections, which could have been left by builders and mounters during assembly operations, and which cannot be removed by common cleaning methods;
possibility to add ultrasonic diagnostics to mechanical cleaning operations;
the technology is environmentally safe.
Coil pipe cleaning is done by passing of a testing sponge scraper and after that a cleaning scraper inside the pipes. Geometry of the stud pattern on the scraper surface is of great importance for scraper application. For the purpose of safe operation and achievement of the maximum effectiveness of operations, special scrapers for various stages of cleaning process were designed.
The results of computer tests of the rate of flow in the pipe before and after cleaning show increase of flow passability particularly in the given furnace:   1 – 53.7 percent; 2 – 59.9 percent; 3 – 68.4 percent; 4 – 43.3 percent.
Hydro-mechanical cleaning makes it possible to restore the design throughput capacity of furnaces, often during the first cleaning to remove mechanical obstructions –fitting and pipe debris which, as a rule, remain there during the primary assembly.
Prevention or reduction of plugging of the pipes of convection and radiant furnace coils by the deposits makes it possible to significantly increase the efficiency of furnaces for hydrocarbon feedstock processing by means of increasing their feedstock throughput capacity, by performing the process of the feedstock heating at the optimal temperature and pressure;  this results in bigger yield of end products.
This cleaning technology has been successfully applied by the world petroleum refineries and petrochemical plants in order to improve reliability of the furnace operation, increase the overhaul life, optimize maintenance costs.
Main areas of operation of MAGIKROT at the plants of the petrochemical, oil- refining and chemical sectors in Russia and CIS countries in the period of maintenance shutdown of the plants include:
hydro-mechanical cleaning of soaking sections of oil stills;
ultrasonic diagnostic of soaking sections of oil stills and technical pipelines, which makes it possible to detect, localize and assess pipe damages, such as corrosion (both internal and external), erosion (internal and external), bulging, pitting corrosion, swelling (caused by flame), creep phenomenon, ovality;
pressurized hydraulic cleaning of transfer, feed pipelines, heat-exchanging equipment, tanks, vessels, etc.

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