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Number: 37

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  • Online cleaning of process equipment

    Oct-2008

    In the interest of time and cost savings, online cleaning prior to shutdown can reduce the duration and complexity of refinery turnarounds, as demonstrated ...

  • Online cleaning of production units

    Apr-2008

    Faster online cleaning avoids the production losses that occur when shutting down a unit for conventional cleaning. Other benefits, such as improved safety ...

  • Identifying very small equipment leaks

    Jan-2008

    Very small leaks in feed/effluent exchangers can be identified using chemical tracing. This online technique can detect leaks as low as 5.0 ppm, avoiding ...

  • Oil/water interface control for desalters

    Oct-2007

    Profiling instrument provides vertical real-time phase density measurement in desalter vessels. Benefits include reduced process upsets from interface ...

  • Olefins plant cracker gas compressor fouling

    Apr-2007

    Monitoring and treating process gas compressors to prevent corrosion and fouling. Several examples of improved compressor performance through the utilisation ...

  • Corrosion monitoring improvements

    Oct-2005

    Case study examines prediction, monitoring and mitigation of corrosion-related effects at a West European refinery operating in a high temperature, naphthenic ...

  • Optimising cooling water systems

    Oct-2005

    An integrated approach to chemical treatment can improve reliability, reduce costs and extend the life of cooling systems. Cooling system problems can ...

  • Choosing a neutralising amine corrosion inhibitor

    Jul-2004

    A review of physical and chemical properties of commonly used amine-based corrosion inhibitors. The authors highlight the relative strengths and weaknesses ...

  • Chemical treatment to solve FCCU problems

    Jul-2004

    From fouling and catalyst carryover to high feed nickel levels and varying feed qualities, FCCU problems can be solved quickly and cost effectively, says ...

  • Tackling fouling in vinyl monomer manufacture

    Jul-2003

    Conventional and new approaches to the control of fouling in vinyl monomer processes are discussed in this article, which describes the fouling characteristics ...

  • Mitigating corrosion from naphthenic acid streams

    Jan-2003

    The authors describe how crude and side-cut analysis, laboratory and field data lead to strategies for managing high severity operating conditions needed ...

  • Preventing salt fouling in FCC main fractionators

    Apr-2001

    Results of using salt dispersant additives on a badly fouled FCC unit has shown that the method allows refiners to avoid more costly methods of naphtha ...

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