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

Blasch Ferrules

Thermal Management System (TMS) – a pre-fired tubesheet protection system that allows for the extensive use of fiber insulation in conjunction with the Blasch Ferrules and provides much greater insulating value than castable alone, in a greatly compressed area, saving space, and refractory. Improved performance – Large expanses of castable refractory undergo tremendous thermal and mechanical stresses as they heat up and cool down and that generates cracking in the ...

BLASCH HexWall™

For sulfur recovery, sulfuric acid plant sulfur burners and spent recovery furnaces. BLASCH HexWall™ is a versatile, mechanically stable system consisting of a series of stackable six-sided blocks incorporating alternating tabs and slots on each side that are designed to ensure the blocks are positively locked together at installation. BLASCH HexWall™ is offered in a highly creep resistant mullite bonded composition designed to resist deformation under load.  

BLASCH precision ceramics

BlaschVECTORWALL™ Mixing System - OPTIMIZE YOUR PROCESS USING OUR ADVANCED MIXING SYSTEM – This system utilizes the same blocks as the proven checkerwall system, but incorporates a series of add-on flow vectoring shapes designed to direct gas flow at the exit of the checkerwall into any of a series of flow patterns to include single, double, and multiple vortices, preferential flow directions, or converging or diverging flows. Computational fluid dynamics support is ...

BLASCH VectorWall™

Mixing systems for sulfur recovery, sulfur burning, or sulfuric acid plant reaction furnaces. BLASCH VectorWall™ Reaction Furnace Mixing System is a versatile, mechanically stable system consisting of a series of stackable six-sided blocks incorporating alternating tabs and slots on each side that are designed to ensure the blocks are positively locked together at installation. BLASCH VectorWall™is offered in a highly creep resistant mullite bonded composition designed to ...

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.

Flue Gas Reformer Tunnel System: StaBlox™

The Blasch StaBlox flue gas reformer tunnel system is a versatile, mechanically stable system consisting of a series of stackable, customizable, interlocking blocks and highly engineered, mortar-free expansion joints. The StaBlox system allows for an extremely fast, easy installation as compared to conventional brick and mortar designs, with a much higher level of reliability. Lightweight, structurally stable roof assemblies are much more resistant to the effects of high temperature ...

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 ...

ITW Online Cleaning

Will revolutionize turnaround operations and operational excellence by optimizing: productivity, operability, safety health and environment, reliability, product quality, energy efficiency, CO2 SOX NOX VOC emissions, maintenance and repair and operational requirements. An entire Unit can be ITW Online Cleaned in as low as 24 hours on an oil-to-oil basis, including all the equipment and not only the relevant one, without the need of opening it. ITW Online Cleaning a Unit in ...

It’s time to give your reactor some HELPsc™

Excessive pressure drop build-up issues in hydroprocessing reactors are often keeping units from delivering maximum value. Refiners are forced to perform premature shutdowns for costly catalyst skimming operations resulting in lost profit. Topsoe’s High-Efficiency Liquid Phase scale catcher (HELPsc™) is a specialized patent-pending reactor internal technology that works in synergy with the graded bed. Installation of the technology will significantly prolong the ...

Lube Oil Vacuum Tower revamp

Pressure drop is a critical operating parameter for Vacuum Towers. A Lube Oil Vacuum Tower with dislodged floating valves was revamped with Sulzer’s high performance MVG™ fixed valves, reducing column pressure drop 15%. V-Grid™ trays offer reliable performance with substantial energy savings and increased run length. V-Grid tray technology: - Lower pressure drop - High efficiency over a wide operating range - Superior mechanical strength - Excellent fouling resis ...

Tower field service, maintenance, revamps and installation

Worldwide maintenance and installation services. Since 1971, Tower Field Service (TFS) has been a tower specialist performing tray and packing installation, tower maintenance, and plant turnaround projects. Years of successful tower and vessel experience assures our customers of a partner who is safe, cost effective and technically experienced. The challenge to complete multiple tower revamps and retrofits safely and on time is what Tower Field Service most prides itself in. ...

VFF Products

VFF supplies a wealth of column-related products and consultation services for the most diverse applications e.g.: - Absorption - Desorption - Distillation - Extraction - Drying - Cooling - Humidification - Water treatment - Droplet separation (demisters) - Desalination - Heterogeneous catalyst reactors - and much more

VFF-NetBall®: High-performance in the shape of a ball

The VFF-NetBall® a plastic random packing  has been devised by VFF's research and development division and sets new standards in absorption and desorption. Its favourable flow profile, combined with a high specific surface, offers top mass-transfer properties with an extremely high hydraulic load capacity and minimum pressure drop. Its specially designed net structure guarantees high mechanical stability and results in an optimum bed constitution.

VFF-Power-Pak®

The VFF Power-Pak®, a VFF-patent, is a completely newly designed high-performance tower packing in ceramic with a similar profile to structured packings but which retains all the many benefits of random packings. Its innovative shape developed by VFF leads to an extremely low pressure drop with an impressive mass transfer! VFF Power-Pak® is a high-performance random packing designed for maximum capacity. Compared with a conventional random packing with an equivalent rated value ...

VFF-Twin-Pak®

Extremely low pressure drop with best mass transfer. The VFF-Twin-Pak®, a VFF-patent, is an entirely newly developed high-performance metal tower packing with a profile that comes close to the structured packings, while not doing without the numerous advantages of a tower packing. Its form combines an extremely low pressure drop with a convincing mass transfer! The VFF-Twin-Pak® is a high-performance tower packing, predestined for highest capacity. The mass transfer of the ...

VSP®-V High performance tower packing with lowest pressure drop

The VSP-V is the updated version of VFF’s world wide known random packing VSP. The VSP-V offers high performance in plastic with top mass transfer and lowest pressure drop and is easy to handle during column loading and emptying.

Want to remove particles from your naphtha gas phase?

Topsoe’s gas phase scale catcher effectively removes particles from the process stream and prevents reduction of bed void fraction and pressure drop build up. Particles entering with the gas, are often preventing units from optimal performance. Topsoe has developed a gas phase scale catcher, which is especially designed to catch all sizes of particles from the gas stream. Installation of the technology can significantly prolong the cycle lengths of units suffering from pressure ...

When reliable operation and easy inspection is key

Topsoe’s outlet collector is easy to install and inspect and help ensure even flow distribution in the bottom of the reactor. It is important to have the best catalyst to ensure optimal performance of your hydroprocessing unit. However, it is equally important to have the best reactor internals to ensure the optimal flow conditions for the catalytic reactions in your reactor. Topsoe’s outlet collector ensures even flow distribution in the bottom bed thereby maximizing ...