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  • About Axens

    Axens is a group providing a complete range of solutions for the conversion of oil and biomass to cleaner fuels, the production and purification of major petrochemical intermediates as well as all of natural gas' treatment and conversion options. The offer includes technologies, equipment, furnaces, modular units, catalysts, adsorbents and related services. Axens is ideally positioned to cover the entire value chain, from feasibility study to unit start-up and follow-up throughout ...

  • Axens catalysts and adsorbents

    Decades of scientific achievement in catalyst and adsorbent research, product development, engineering expertise, process licensing technologies, manufacturing capability, and industrial feedback form the basis of the most advanced and reliable catalysts and adsorbents available anywhere to serve the refining, petrochemical, chemicals, gas, alternative fuels and water industries.   Our products, which constitute the most complete portfolio on the market, are grouped according ...

  • Axens overview

    Axens is a group providing a complete range of solutions for the conversion of oil and biomass to cleaner fuels, the production and purification of major petrochemical intermediates as well as all of natural gas' treatment and conversion options. The offer includes technologies, equipment, furnaces, modular units, catalysts, adsorbents and related services. Axens is ideally positioned to cover the entire value chain, from feasibility study to unit start-up and follow-up ...

  • Beyond the column: Sulzer ESR

    New bypass line between diesel draw-off line to side stripper, new bypass valve, incl. update of P&ID, piping isometrics and pipe

  • Caustic tower revamp

    A customer contacted Sulzer to increase capacity while improving the CO2 removal in the existing CO2 absorption column of their ethylene plant. This was the third revamp for this particular column and continued improvements can be hard to find. A proper caustic tower design requires a proper understanding of CO2 absorption with caustic. CO2 + 2NaOH Na2CO3 + H2O Sulzer replaced the conventional random packing with NeXRing and modified the operating parameters to match the ...

  • Droplet Separators (Demister)

    For many decades, VFF droplet separators have been successfully used in a large variety of applications and design forms — up to 18 m in diameter. Wire mesh droplet separators (Demister) are used for the removal of small liquid droplets (aerosols) from exhaust gases, exhaust air and steam. VFF’s portfolio includes a wide range of practical experience in the following applications and devices: - Absorbers - Seawater desalination equipment - Washers - Sulphuric acid plants - ...

  • DURANIT® Maximum compression strength for maximum operational safety

    When using catalyst supports, a high degree of operational safety through stability and homogeneity of the support material is an important factor for the customer. The specially developed manufacturing process from VFF means that the compression strength of the Duranit® X500 inert balls is significantly higher than that of comparable products. The mean compression strength of the 1“ balls is well above 1000 kg, guaranteeing VFF customers an unsurpassed level of operational ...

  • DuraTop® Covering layers for catalyst beds for more efficiency.

    DuraTop® special reformed packings are used among other things for covering catalyst beds. DuraTop® special reformed packings can be added onto the top ball layer or even replace the top ball layer. As the top layers on the catalyst beds DuraTop® special reformed packings offer the following advantages: - low pressure drop because of large free-gap volume - good pre-distribution of the liquid and gaseous media, even before they reach the catalyst bed, due to open internal ...

  • DuraTop® und DuraFlow — Inert Covering Material and Pressure Drop-Reducer

    DuraTop® and DuraFlow are used for the covering of catalyst and catalyst carriers (Duranit® inert balls) and are applied to the upper ball layers. In addition, it is possible to apply the two Pressure Drop-Reducer at different levels of the catalyst support bed or even to replace the upper spherical layers in an energy-saving manner. DuraTop® and DuraFlow are of course available in different sizes. In addition these products offer the following advantages: - Good pre-distribution ...

  • Expertise beyond the column LPG Treating

    DC Coalescer™. Composite two-material design with very different surface free energies — typically metal and plastic. This simple principle offers notable advantages over conventional, single medium alternatives. The combination of both high and low surface energies gives effective separation irrespective of which phase is dispersed. The rate of coalescence is significantly increased.

  • FCC Main Fractionator Coking

    One common cause for coking is poor vapor distribution. Packing selection in the Slurry P/A section is critical to ensure good distribution and reliable performance. Mellagrid™ combines the performance of Mellapak™ with the robustness of traditional grid. Resists coking and fouling due to its smooth surface and geometrical. Better de-entrainment and separation efficiency than traditional grid. Efficient dissipation of temperature. Excellent mechanical strength.

  • GEA MDI Splitting Process

    Methylene diphenyl diisocyanate (MDI) is an organic chemical which is one of the main components for the production of polyurethanes. Crude MDI is still only commercially produced via the phosgene route and contains three diisocyanate isomers, oligomeric polyisocyanates (tri,tetra,penta ,etc isocyanates), byproducts and impurities. The present market requires separate products or blends thereof to make polyurethanes with a wide range of properties. The MDI splitting plant is responsible ...

  • Grading & guard materials

    Maximum catalyst protection and optimum pressure drop management. With the increased levels of heavy and non conventional crude oils in the refinery diets, state-of the art catalysts need state of the art Grading and Guard Materials to create the best working environment mitigating pressure drop and eliminating contaminants. Cycle length of a Hydroprocessing unit is typically controlled either by the catalyst activity (maximum allowable working temperature) or by the reactor ...

  • Optimising the efficiency of shutdowns and turnarounds to improve processes

    Tracerco’s diagnostic techniques provide you with the invaluable insights you need to reduce your turnaround times and costs by identifying operational process problems and mechanical integrity of internals in real-time and whilst online. Tracerco’s level, density, interface and multiphase nucleonic instrumentation provides invaluable insights to help you make informed decisions to increase profits, manage risks and reduce costs. Making data-driven decisions can significantly ...

  • A new perspective on improving process and operational efficiencies

    Presented with ageing equipment and ever-increasing environmental restrictions, process engineers are challenged with maximizing efficiency and mitigating problems. Without the necessary information, facing this challenge can be difficult or impossible. Tracerco provides you with the insights you need to help troubleshoot production problems and optimise processes. With the widest range of scanning and tracer diagnostic services on the market, Tracerco helps the refining and ...

  • Preparing for a petrochemical plant revamp or technology upgrade

    Petrochemical producers have recently confronted unprecedented volatility in crude oil prices and limits on advantaged feedstock, while the refining and gas sectors remain vigilant to global supply conditions. However, some industry challenges remain unchanged, such as the need to optimize plant operations and cut carbon footprint by reducing the amount of energy required to drive a plant. Equipment nearing the end of its operational life can not only put plants at risk of ...