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Siliporite^® Phyg Series molecular sieves for hydrogen purification

Discover the product family Molecular sieves

Product overview

Molecular sieves play a vital role in producing high‑purity hydrogen for industrial, chemical, and energy applications. By selectively adsorbing trace contaminants, these advanced adsorbents ensure consistent hydrogen quality and reliable operation of PSA purification units. Arkema’s Siliporite^® solutions are engineered to deliver high adsorption capacity, durability under fast pressure cycles, and optimal hydrogen recovery—supporting the demanding specifications of refineries and chemical plants while providing more sustainable solutions.

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High‑performance molecular sieves for hydrogen purification: advantages and proven solutions

To achieve high-purity hydrogen essential for industries and energy applications, efficient purification technologies are required. Integrated in a full purification unit, molecular sieves offer reliable high-performance solutions to remove contaminants at ppm level and meet demanding process specifications.

Reliable solutions for high-purity hydrogen

Hydrogen is a critical feedstock in refining, ammonia synthesis, and energy applications. To meet the stringent purity requirements of these processes, the most common being SMR, contaminants and by products such as water, methane, nitrogen, carbon oxides or hydrocarbons must be efficiently removed. Arkema offers a dedicated range of Siliporite^® molecular sieves designed to purify hydrogen streams via Pressure Swing Adsorption (PSA). These adsorbents ensure high performance, long service life, and compatibility with fast-cycle PSA units.

Performance in PSA hydrogen units 

PSA is the most widely used equipment for hydrogen purification. It relies on selective adsorption of impurities under pressure, followed by regeneration at lower pressure. The efficiency of this process depends on the performance of the adsorbents. 

Siliporite® Phyg grades are engineered to: 

Achieve extensive removal of nitrogen and carbon monoxide
Minimize hydrogen co-adsorption, maximizing recovery  
️Maintain mechanical integrity under cyclic conditions  
Operate reliably in high-throughput PSA systems

These properties make them ideal for hydrogen recovery units in refineries and chemical plants.

Hydrogen for Refining 

In refining, hydrogen is used in hydrocracking, hydrotreating, and reforming. Even low amount of impurities in hydrogen can deactivate catalysts, reduce product quality, and increase maintenance and operational costs. Siliporite^® Phyg ensures consistent hydrogen purity, protecting downstream units and improving process efficiency. 

Hydrogen for Energy 

Fuel cell technologies require ultra-pure hydrogen to avoid membrane degradation.

Siliporite^® Phyg supports the production of high-purity hydrogen for mobility and stationary energy systems. 

Hydrogen for Ammonia and Methanol 

Hydrogen is a key component in ammonia and methanol production. The presence of CO₂ or sulfur compounds can affect reaction kinetics and catalyst life. Our Airsiev^® range helps maintain optimal feedstock quality, ensuring stable and efficient operation.

Looking for solutions for electrolytic hydrogen? 

Discover our dedicated range for green hydrogen purification, designed for the specific needs of electrolysis based hydrogen production. 

Arkema’s Siliporite^® solutions for hydrogen purification include Cecagel™ E2 for water and hydrocarbons removal and Phyg 3 for CO and N₂ removal. For highly demanding applications where higher purity is required, specific products such as Ox8S and Ox19 are recommended.

Key benefits include: 

High adsorption capacity for key impurities  
Low pressure drop and high mechanical strength  
Compatibility with all major PSA designs  
Proven performance in industrial-scale units

Our products are manufactured in ISO-certified facilities and comply with REACH and other international standards. 

Technical support and customization 

Arkema provides full technical support to engineering firms and end users: 

Adsorbent selection and performance assessment
Tailored product solutions for specific process requirements.
Support for the design and optimization of adsorption units.
Assistance during commissioning and operation
Specialized technical expertise and troubleshooting.

Sustainability and energy efficiency 

Siliporite^® Phyg contributes to more sustainable hydrogen production by: 

Reducing energy consumption in PSA cycles  
Minimizing hydrogen losses  
Extending adsorbent lifetime  
Supporting low-carbon hydrogen value chains

This aligns with Arkema’s commitment to sustainable innovation and the development of clean technologies. 

Siliporite^® Phyg Series molecular sieves for hydrogen purification

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