Equipment Supply

H-Cat additive Injection Package

The H-Cat Additive is a single molecular catalytic agent introduced in the oil residue feedstock. It is mixed and dispersed well within the oil residue through the H-Cat technology injection package which consists of a pump and mixers to inject and mix with the oil residue. The injection package is placed upstream of the H-Oil Reactor.

The mixing of the H-Cat catalyst and the feedstock ensures easy hydrogen transfer particularly into large asphaltenic molecules that cannot access the active sites of the solid supported catalysts in the ebullated beds increasing the residue conversion rate by at least 10% and produce higher quality distillate yields. It also reduces fouling of tower bottom heat exchangers. The H-Cat technology is suited for upgrading projects using heavier and less- expensive feedstocks.

Advantages:

• Increase the conversion rate of the Residue
• Limit the development of undesired by-products

Catalysts & Additives Injection Packages

Axens scope of supply for the Liquid Catalyst Injection Package includes the engineering, material selection, fabrication, inspection, testing, painting, preparation for shipment and Supplier data for the Liquid Catalyst Injection Package. These Packages allow properly the preparation and injection, of the Liquid Catalyst to maximize the efficiency of the Axens Homogeneous Catalysis Technologies.

Key advantages:

• Complete optimized process design through Axens large expertise and know how in the field of homogeneous catalysis such as AlphaButol® and AlphaHexol™ technologies.
• Selection of equipment and materials, which have proved their full reliability and high efficiency.

Chemical Injection Packages

During the commissioning, the start-up and operation of the unit, the injection of different chemical products is required.

Axens can supply these Chemical Injection packages as part of a a global solution, most appropriate to ensure a safe and efficient operation, and a robust design integrated into the overall unit designed by Axens.

Catalyst Sampling Device

The Catalyst Sampling Device is a reliable proprietary sampling system to withdraw a solid catalyst from a gas medium allowing analysis without interfering in the operation of the unit.

During normal operations the catalyst sampling system is used to analyze catalyst carbon content, to identify the nature of any catalyst contamination or poisoning that may have occurred and to detect abnormal carbon deposit.

Key advantages:

• Over 60 References
• Used for the Start-up and Commissioning
• Used for Catalyst Monitoring, helping operators to adjust regeneration section operating parameters, while keeping the unit running

Texicap™

Fixed-bed radial-flow reactors are used when low-pressure drop is critical to performance, such as in reforming units. Most fixed-bed radial reactor designs “waste” the top 15% or so of the catalyst bed, since conventional design create “dead-zones”.

Indeed, when the bed catalyst settles, a gap appears between the top of the bed and cover plate. To prevent reactants from bypassing the catalyst, Axens has developed and patented an extremely cost-effective way to recover unused bed volume, and ensures complete utilization of loaded catalyst and platinum inventory.

References: Over 150 Texicap™ installations

Dryer Control Systems (DRCS)

The Dryer Control System (SCS) has been developed to meet the requirements of continuous processing. Its great flexibility allows very fine on-line tuning and adapts the control to various factors and constraints of the unit without interruption, thus maximizing yield and benefits.

Customized for each customer's on-site requirements, the SCS is the result of long experience including hardware, software and process design in the field of refining and petrochemicals. It avoids design problems and reduces development time while maximizing the reliability, improving catalyst life and boosting dryer performances.

The SCS architecture is based on a supervision system and a set of PLC cabinets that include all necessary components redundancy, process optimized software, providing a high level of reliability.

Axens supports the control system operation with the following services:

• Implementation and testing
• Training
• Technical assistance on site
• Follow-up during operation
• System upgrades
• Spare parts
• Revamping

Advantages:

• Since 1997, 99.9% of Availability
• More than 25 Control System in operation in the world

Eluxyl® Control System and Raman Analyzer

The combination of the Axens Eluxyl® Control System and Raman Analyzer provides a full operating and management system of the Eluxyl® Unit.

The control system is used to manage automatically the full sequence to adapt the operation to maintain a very efficient and the highest level of availability of the unit.

On-line Raman spectroscopic analyzer is applied to visualize concentration profiles along the Eluxyl® adsorber vessels on a real-time basis. This powerful technique allows saving precious time during the commissioning and start-ups, fine and continuous supervision of the adsorption section.

Oxyclorination Tray

The Oxychlorination tray allows to improve the Hydrodynamics distribution in the Oxychlorination area.

Key advantages:

• Up to +1 point of Aromatic Yield  
• Limited Investment Cost and Modification 
• High Return on Investment 

OptimAx

The new generation of reactor internal for the Axens Catalytic Reforming unit allow improving drastically the robustness of the reactor internals, maintaining the unit process performance and ensuring the partial and easy replacement of sections.

Key advantages:

• Improved Mechnical Resistance 
• Partial Replacement by Sections 

New Washing Drum Design

Axens developed in 2020 a new generation of Washing Drum, to improve the operation of the unit and avoid any corrosion issue in the unit. 

Key advantages:

• Tailor made upgraded system according to your operating parameters 
• Solve the Corrosion phenomena 
• Limited modification of the existing unit 

Chloride Guard Bed

This package is a solution to remove HCl in reforming products and reduce green oil production in compressors in CCRs.  

This package is systematically placed at outlets of H2 rich gas or products’ outlets. It can be proposed as a solution against green oil on H₂ reduction effluent stream.

Removing Cl₂ from the compressors reduces formation of green oil which increases the longevity of compressors.Chloride guard beds allow meeting specs on HCl content in final products or in hydrogen rich gas for downstream process users.

H2 Purification Package

This package is a modular process system to remove CO/CO₂ from H₂ from the CCR unit as the CO/CO₂ is poisonous to the catalyst in the isomerization unit.

It is placed between the CCR unit and the Isomerization Unit. It is also be placed in the hydrogen make up- stream in selective hydrogenation units to remove the CO/CO₂.