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 ...

Are you ready for MARPOL?

As the International Maritime Organization (IMO) has decided to implement the MARPOL Annex VI, all ships must globally reduce their emissions of sulfur by 86% before 2020. This fact is bound to have a huge impact on the shipping as well as the refinery industry. But exactly what will happen? What options are there? What are the opportunities? Who will seize them? And how?   The MARPOL directive presents great opportunities for refineries. Whether you want to produce MARPOL ...

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 ...

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 ...

DuraSOx™

Highly attrition-resistant SOx reduction additive without performance compromise. DuraSOx SOx reduction additive is the culmination of intensive development work focusing on obtaining the most attrition-resistant Sox additive on the market without any performance compromises. It follows in the footsteps of Albemarle’s longest marketed SOx additive, KDSOx®, in that both take advantage of Albemarle’s patented hydrotalcite technology. SOx reduction additives are ...

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 ...

H2S oxidation system for refinery desulfurization

The European Union has recently promulgated new directives reducing the amount of residual sulfur in diesel and gasoline. These directives are requiring European refineries to revise both their fuel production processes and their downstream desulfurization strategies. One affected refinery is Irish Refining plc near Whitegate Middleton, Country Cork, Ireland which recently added a new atmospheric pipestill and expanded their existing gas oil hydrofiner. After the changes, the ...

High octane C₅/C₆ cuts via isomerization Processes

C5/C6 isomerization is a must-have for refiners who want to maximize the profitability of their gasoline pool. This process can be adapted to various configurations and allows improving C5/C6 naphtha cut octane numbers up to 92 without constraints on olefins and sulfur. Axens is licensing a complete set of isomerization configurations in order to support refiners to resolve the evolving gasoline pool equation. COMMERCIAL EXPERIENCE With a powerful R&D support at both lab ...

Hydrogen sulfide removal from sour associated gas

In November of 1999, PT Pertamina (Indonesia’s staterun oil company) installed the LO-CAT® II Hydrogen Sulfide Oxidation Process for their Mudi Field in East Java, Indonesia. The oil production operation at the Mudi field was producing up to 11 MMSCFD of sour associated gas. This associated gas was to be used to strip additional H2S from the sour crude and to generate power in 3 gas fired turbines. Pertamina investigated several alternative sulfur recovery options, ...

Johnson Matthey licensed processes

A portfolio of advanced process technologies for global markets. Johnson Matthey (JM) develops and licenses proprietary process technologies. We also offer collaborating companies an extensive range of technology development, process design and engineering skill. For over thirty years JM has been engaged in innovative DAVY™ licensing development. Our comprehensive expertise of catalysis and reaction engineering has been tailored to the production of a wide range of chemicals ...

KDSOx™

Cost-effective SOx reduction solution for full-combustion FCC units. Reducing SOx emissions has become increasingly challenging in many parts of the world. Depending on the location, SOx emission limits are defined at the refinery level as bubble limits; at the individual emissions source; or, in some cases, by the concentrations in the atmosphere in the vicinity. In light of these challenges, many refineries have successfully used SOx additives for reducing overall sulfur ...

LO-CAT - the green solution to sulfur recovery

The LO-CAT process, available exclusively from Merichem, is a patented liquid redox system that uses a proprietary chelated iron solution to convert H2S to innocuous, elemental sulfur. It does not use any toxic chemicals and does not produce any hazardous waste byproducts. The environmentally safe catalyst is continuously regenerated in the process. The LO-CAT technology is applicable to all types of gas streams including air, natural gas, CO2, amine acid gas,biogas, landll ...

LO-CAT® II process for chemical plant desulfurization

KRONOS’ facility in Leverkusen, Germany produces titanium dioxide, the most important material used by the paints and plastics industry for whiteness and opacity. When new German guidelines set maximum emission limits for SO2 in 1989, KRONOS was required to eliminate the COS from the off-gas at their titanium dioxide production facility to meet the new requirements. Complicating this application, the COS removal process that KRONOS needed had to be built in an area with other ...

LO-CAT® II process for elevated pressure refinery desulfurization

MOL Hungarian Oil & Gas Co. selected a LO-CAT® II Desulfurization System for operation at its production unit in Szeged, Hungary. The unit was custom-designed for direct treatment of sour associated and process gas streams at elevated operating pressures and relatively high CO2 partial pressures. Recycled process gas and associated gases are collected from the oil fields around the plant and transported via a mixed-phase pipeline, followed by separation in a bank of ...

LO-CAT® II process for H2s oxidation and sulphur recovery

Lubrizol’s facility in LeHarve, France produces a lube oil additive via a batch reaction that uses elemental sulfur as a reactant and produces H2S as a byproduct. Lubrizol selected Merichem’s LO-CAT® II Hydrogen Sulfide Oxidation Process to sweeten H2S emissions and recover sulfur. The LO-CAT II system was chosen for its ability to handle the process variation in H2S concentration. During the 8-hour batch reaction cycle, H2S concentrations in the effluent gas ...

LO-CAT® process as a claus tailgas cleanup unit

In 1997, Western Gas Resources selected the LO-CAT® process to treat the amine acid gas generated in their Pinnacle Gas Processing plant located in Tennessee Colony, TX. When the facility’s processing demand exceeded the LO-CAT capacity (2 LTPD of sulfur), Western Gas installed another LO-CAT unit having a capacity of 7 LTPD. In the summer of 2000, Western Gas once again forecasted that future processing requirements would dramatically exceed the sulfur removal capacities ...

LO-CAT® process for costeffective desulfurization of gas streams

The LO-CAT® II process provides cost effective H2S removal for all types of gas streams in many different industries. The LO-CAT and LO-CAT II processes have achieved H2S removal efficiencies of 99.9+% in many different applications and industries. These applications include natural gas production, oil refining, biogas, landfill gas, coke oven gas, geothermal steam power production, CO2 production for beverage use, lube oil production, and many others. These applications range ...

LO-CAT® process for costeffective desulfurization of gas streams

The LO-CAT® II process provides cost effective H2S removal for all types of gas streams in many different industries. The LO-CAT and LO-CAT II processes have achieved H2S removal efficiencies of 99.9+% in many different applications and industries. These applications include natural gas production, oil refining, biogas, landfill gas, coke oven gas, geothermal steam power production, CO2 production for beverage use, lube oil production, and many others. These applications range ...

LO-CAT® process for sulphur recovery / odor control

The LO-CAT® Hydrogen Sulfide Oxidation System provides economical H2S removal to solve odor problems quickly and effectively. LO-CAT achieves H2S removal efficiencies exceeding 98%. The system also eliminates costly once-through chemicals, offers unique mobile bed contacting material, and reduces operating costs. Turnkey systems from specification to installation can be developed to meet stringent schedules. We also offer technical service and support. LO-CAT systems provide ...

Optimisation of a sulphur recovery unit

Prior to Suncor’s purchase of the Spirit River facility, little attention was given to the LO-CAT® unit. In general, over injecting chemicals into a LO-CAT unit will not result in operating problems, just higher than required operating costs. Consequently, in remote gas plants such as Spirit River, it is sometimes difficult to convince operators to change operating conditions if the unit is not presenting any operating problems. However, this is not Suncor’s operating ...

Quantifying FCC gasoline sulfur reduction

Refiners everywhere have to comply with government-mandated fuel specifications, in particular dramatically lower gasoline sulfur levels. While post-treating remains an option, the associated octane loss creates additional constraints for refiners, particularly those who are hydrogen limited. Regardless of whether your refinery is post-treatment or hydrogen constrained, a gasoline sulfur reduction additive such as Albemarle’s RESOLVE line can reduce reliance on post-treating ...

SOxMASTER-2™

Optimal SOx reduction without rare earth for partial- and full-burn units. SOx reduction additives are designed to capture and remove the oxidized sulfur compounds present in the FCC unit regenerator and release them in the FCC riser. On release, the sulfur exits the FCC unit as hydrogen sulfide along with the cracked products in the reactor effluent. The hydrogen sulfide is processed in the gas plant downstream of the FCC unit. Extensive studies in the 1970s looked at the ...

Valve solutions for sulphur applications

How to select a valve for sulphur applications? We asked our expert Vincent Wang to answer this frequently raising question. What are the key points to address when selecting a valve for sulphur applications? When we talk about sulphur valves, in most cases they are used in the sulphur recovery unit. Various processes in refineries and gas plants produce gases that contain hydrogen sulphide (H2S) and the amount of sulphur is legislated to meet HSE and gas piping specifications, ...

Wet gas sulfuric acid - profitable sulfur management

The WSA technology is an excellent alternative to the Claus technology for sulfur management within oil refining, coal gasification, gas sweetening etc. High steam production, feed flexibility, ease of operation, and low CAPEX & OPEX are some key benefits for the operator when selecting the WSA technology. Today we have +130 references world wide.