Adsorbents

Impurities cost more than you think. From catalyst deactivation to off-spec products and unplanned downtime, even trace contaminants can compromise your entire process. 

At Evonik, we develop and sell high-performance adsorbent solutions that empower industries to achieve maximum purity, operational stability, and long-term profitability. With our proven DYNOCEL®, we help you take control of your process streams - so you can focus on performance, not problems.

Why Choose Evonik Adsorbents?

Compared with running the same unit without effective purification, Evonik adsorbents remove the contaminants that reduce process efficiency or increase waste. DYNOCEL® 64X, 650 and 680 remove contaminants that can deactivate or affect the performance of downstream catalysts. FLUOROCEL® and CHLOROCEL® remove halogens that can cause downstream corrosion. POLYCEL® and other grades reduce off-specification production through feedstock and process purification. DRYOCEL® and DYNOCEL® grades improve process reliability and safety, reducing losses from unplanned shutdowns and process upsets.

• Precision Purification: Remove water, sulfur compounds, oxygenates, and acid gases to non-detectable levels

• Process Reliability: Minimize downtime, fouling, and catalyst degradation

• Operational Efficiency: Extend catalyst life, reduce maintenance, and optimize throughput

• Tailored Solutions: Engineered adsorbents for your specific feedstock and process conditions

• Sustainability Gains: Enable cleaner processes, reduced waste, and improved resource efficiency

Evonik combines deep application expertise with advanced adsorbent technologies, ensuring your systems perform at their best - today and tomorrow.

Solutions by Application

Olefin Purification (Ethylene, Propylene, C4 Streams)

High-purity olefins are essential for downstream polymerization and chemical production. Even minimal contamination can lead to off-spec products and costly inefficiencies.

Evonik solutions:

• DYNOCEL® 641 / 643 – Molecular sieve adsorbents for efficient removal of water and oxygenates from olefin streams

• DYNOCEL® 650 – Targeted removal of polar contaminants such as mercaptans and oxygenates

• DYNOCEL® 680 – Hybrid adsorbent combining molecular sieve and activated alumina to remove both polar compounds and acid gases in one step

Customer benefit: Consistent product quality, improved polymerization performance, and reduced by-product formation

Refining & Petrochemical Feedstock Purification

Feedstock impurities like hydrogen sulfide, carbon dioxide, and sulfur species can damage catalysts and reduce plant efficiency.

Evonik solutions:

• DYNOCEL® 642 – Removal of acid gases such as H₂S and CO₂ from hydrocarbon streams

• DYNOCEL® ASR / HG – Specialized adsorbents for removing trace contaminants like arsine, phosphine, and mercury

Customer benefit: Longer catalyst life, fewer shutdowns, and optimized refining operations

Water Treatment

Whether in aqueous or organic phase, adsorbents like Dynocel can be used to remove a variety of impurities, Potable and wastewater streams often contain trace levels of contaminant species such as fluoride, arsenic, and various metals in ionic form.

Evonik solutions:

• DYNOCEL® 600 –  A granular alumina designed to remove fluoride, arsenic compounds, and cationic species from water. Different impurities can be removed by adjusting the surface pH of the adsorbent media via a regenerable process.

Customer benefit: Reliable contaminant removal with a customizable solution.

The Evonik Advantage

At Evonik, we go beyond supplying products - we partner with you to optimize your entire purification system:

• End-to-End Expertise: From adsorbent selection to process optimization

• Customized Development: Solutions tailored to your feedstock and operating conditions

• Technical Support: On-site and remote service to ensure peak performance

• Future-Ready Solutions: Supporting circularity and more sustainable chemical processes

Compared with operating without effective purification, Evonik adsorbents help you remove contaminants that reduce process efficiency, protect downstream catalysts and equipment, and reduce off-specification production. Regenerable grades such as DYNOCEL® 680 can be regenerated and reused over multiple cycles instead of being discarded after a single use, generating less spent-adsorbent waste and fewer disposal liabilities for the operator than single-use adsorbents.

Ready to Elevate Your Process Performance?

Discover how Evonik’s DYNOCEL® adsorbents can help you achieve higher purity, improved efficiency, and greater operational reliability.

Contact our experts today to find the right solution for your application 
Explore our adsorbent solutions and unlock the full potential of your process.