DYNOCEL® 900 Activated Alumina for Process Purification
DYNOCEL® 900 Activated Alumina for Process Purification - 454kg (1000 lbs) Half Pallet / 14x28 is backordered and will ship as soon as it is back in stock.
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|---|---|
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DYNOCEL® 900 from Evonik is a high-surface-area granular activated alumina adsorbent designed to remove process impurities from compatible vapor- and liquid-phase streams.
Its high porosity supports rapid diffusion, while a BET surface area of at least 300 m²/g provides adsorptive capacity for water, low-level polar compounds, ionic species, soaps, metals, and other compatible process contaminants. Available in both 14×28 mesh and 20×50 mesh, DYNOCEL 900 may also be used as a desiccant where its particle size and adsorption characteristics fit the system requirements.
Product type: Granular activated alumina adsorbent
Available mesh sizes: 14×28 mesh and 20×50 mesh
Surface area: ≥300 m²/g
Primary use: Vapor- and liquid-phase impurity removal
Manufacturer: Evonik
Where it fits
- Vapor-phase purification: Removal of low-level polar and ionic impurities from compatible industrial gas and process streams.
- Liquid-phase purification: Adsorptive cleanup of compatible aqueous, solvent, oil, and hydrocarbon streams.
- Oil and fatty-acid processing: Reduction of metals, soaps, color-forming compounds, and other impurities in compatible process oils.
- Petrochemical and refining processes: Impurity scavenging where granular, high-surface-area alumina is required.
- Fine-chemical processing: Removal of trace polar or charged contaminants from compatible production streams.
- Desiccation: Moisture adsorption in compatible gas or liquid systems where 14×28 or 20×50 mesh granular alumina is appropriate.
- Batch purification: Adsorptive treatment followed by downstream separation or filtration.
- Fixed-bed purification: Packed-bed systems designed for granular activated-alumina media.
Why choose DYNOCEL 900?
- High surface area: At least 300 m²/g for enhanced adsorptive capacity.
- High porosity: Supports diffusion of compatible contaminants into the internal pore structure.
- Broad purification utility: Suitable for vapor- and liquid-phase impurity removal.
- Polar and ionic contaminant removal: Particularly useful for low-level charged or polar species.
- Available in 14×28 and 20×50 mesh: Supports use in fixed beds and other systems requiring controlled granular particle sizes.
- Industrial packaging: Available in bags, steel drums, and bulk supersacks.
- Manufacturer documentation: Technical data and safety documentation available for qualification.
Typical specifications
| Product name | DYNOCEL® 900 |
|---|---|
| Product type | Granular activated alumina adsorbent |
| Chemical name | Activated alumina / aluminum oxide |
| CAS number | 1344-28-1 |
| Physical form | Granular |
| Available particle sizes | 14×28 mesh and 20×50 mesh |
| BET surface area | ≥300 m²/g |
| Bulk density | 35–46 lb/ft³ (approximately 560–737 kg/m³) |
| Net loss on ignition | ≤7.5 wt.% from 250–1,000°C |
| Manufacturer | Evonik |
| Shipping point | Little Rock, Arkansas, Portland, Oregon |
Values shown are representative manufacturer specifications. Physical properties may vary slightly between the 14×28 and 20×50 mesh grades. Final acceptance should be based on current technical documentation and the applicable lot-specific COA.
Adsorption and purification considerations
| Process objective | General suitability |
|---|---|
| Moisture removal | DYNOCEL 900 is suitable as a desiccant, subject to validation of capacity, outlet specification, cycle design, and regeneration conditions. |
| Polar impurity removal | High surface area and alumina surface chemistry make it useful for adsorbing compatible polar compounds. |
| Ionic-species removal | Evonik identifies the grade as particularly useful for low-level ionic or charged process impurities. |
| Metal and soap reduction | DYNOCEL 600 and 900 are identified by Evonik for removal of metal impurities and soaps from compatible aqueous and hydrocarbon streams. |
| Color and odor improvement | May support improvement of compatible fatty-acid and oil streams where the target impurities are adsorbed by activated alumina. |
| Hydrocarbon purification | Suitable for compatible liquid or vapor hydrocarbon streams after application-specific evaluation. |
Actual capacity and selectivity depend on the complete stream composition, temperature, pressure, concentration, residence time, competing adsorbates, and required outlet specification.
DYNOCEL 900 vs. dedicated air-dryer alumina
| Selection factor | DYNOCEL 900 | Dedicated air-dryer alumina |
|---|---|---|
| Primary positioning | Process-impurity scavenger for vapor- and liquid-phase purification | Moisture removal in compressed-air and industrial-gas dryers |
| Primary advantage | Broad removal of low-level polar, ionic, and process impurities | Water-loading capacity, crush resistance, low attrition, and dryer-cycle performance |
| Typical application | Petrochemical, refining, oils, chemicals, liquids, and process streams | Compressed air, nitrogen, hydrogen, natural gas, and other gas dehydration |
| When to select | When impurity purification beyond simple moisture removal is required | When the primary objective is dependable regenerative air or gas drying |
For a dedicated compressed-air dryer, compare DYNOCEL 900 with an Evonik DRYOCEL grade or the dryer manufacturer’s specified replacement media before ordering.
Application and trial guidance
- Identify all target impurities, their concentrations, and the required outlet specification.
- Evaluate water, acids, soaps, metals, polar compounds, ionic contaminants, and competing adsorbates together.
- Select either 14×28 or 20×50 mesh based on vessel screen size, allowable pressure drop, flow rate, and adsorption objectives.
- Establish bed depth, residence time, superficial velocity, and expected breakthrough behavior experimentally.
- For batch treatment, optimize alumina dose, mixing, contact time, temperature, and downstream filtration.
- Protect fixed beds from bulk liquids, particulates, oils, and other contaminants that may foul or channel the media.
- Monitor both pressure drop and contaminant breakthrough during service.
- Validate product recovery and yield where the alumina may also adsorb desirable process compounds.
Selection note: Activated alumina is not universally selective. DYNOCEL 900 may adsorb both unwanted impurities and valuable polar compounds. Bench or pilot testing is strongly recommended before production use.
- Available quantities: Current Sorbents Direct order options are shown on the listing or confirmed at quotation.
- Bulk format: Half Pallet (1,000 lb) and Full Pallet (2,000 lb)
- Available mesh sizes: 14×28 and 20×50
- Lead time: Typically 2-4 weeks, subject to inventory, package type, mesh size, quantity, and destination.
- Freight: Parcel, pallet, or LTL service based on package size and total order weight.
- Volume requirements: Contact Sorbents Direct for drums, supersacks, recurring orders, or scheduled releases.
Storage and shelf life
- Store in the original sealed packaging in a dry, covered location.
- Protect containers from direct sunlight and rain.
- Keep the packaging elevated from the ground to prevent contact with liquid water.
- Do not expose stored material to temperatures above 450°F (230°C).
- Reseal partially used packaging promptly to limit atmospheric moisture adsorption.
- Protect the material from oils, chemicals, dust, and other foreign contamination.
Published shelf life: Five years in the original packaging when stored in a dry, covered location under the manufacturer’s recommended conditions.
Loading and regeneration considerations
- Use clean, dry loading equipment and minimize exposure to humid ambient air.
- Inspect vessel screens, distributors, support media, and internals before loading.
- Load carefully to reduce particle breakage and segregation.
- Evonik recommends a thorough nitrogen purge after loading to remove excessive free moisture.
- Media intended for temperature-swing service may require a complete thermal regeneration cycle before full activity is restored.
- Media intended for pressure-swing service may require several operating cycles before reaching full working activity.
- Regeneration conditions must account for all adsorbed substances, not only water.
- Cool thermally regenerated media under dry conditions before returning the bed to adsorption service.
Regeneration note: A bed used to remove acids, metals, soaps, solvents, or other process impurities may not be regenerable using the same procedure as a moisture-only desiccant bed. Follow process-specific engineering and safety guidance.
Handling considerations
- Avoid generating or breathing airborne alumina dust.
- Use suitable local exhaust ventilation during transfer, loading, unloading, and cleanup.
- Wear eye protection and any additional personal protective equipment required by the current SDS and site risk assessment.
- Use low-dust cleanup methods or suitable industrial vacuum equipment.
- Do not use compressed air to disperse spilled powder.
- Handle used alumina according to the hazards of the substances it has adsorbed.
Important: Request and review the current Evonik Safety Data Sheet before unloading, handling, loading, regeneration, removal, or disposal.
Why buy from Sorbents Direct?
Sorbents Direct helps industrial buyers evaluate activated-alumina grade, particle size, process objective, packaging, documentation, and freight before ordering.
- Industrial package quantities for trials, fixed-bed fills, recurring production, and bulk requirements.
- Manufacturer-backed technical data for product qualification and process review.
- Lot-specific COA support when available for shipped material.
- Application discussion based on stream composition, target impurities, and outlet specifications.
- Packaging guidance for bags, drums, and supersacks.
- Transparent freight and quotation support for industrial buyers.
Documentation & technical support
Technical documentation, Safety Data Sheets, and Certificates of Analysis may be requested when available from the manufacturer. Documentation requirements for the 14×28 and 20×50 mesh grades can be confirmed before ordering.
Visit our Documentation Center or contact Sorbents Direct to discuss your process stream, target contaminants, operating conditions, vessel dimensions, quantity, and documentation requirements.
Questions & answers
What is DYNOCEL 900?
DYNOCEL 900 is a granular activated-alumina adsorbent manufactured by Evonik for removing process impurities from compatible vapor- and liquid-phase streams.
What mesh sizes are available?
DYNOCEL 900 is available from Sorbents Direct in both 14×28 mesh and 20×50 mesh. The appropriate grade depends on vessel design, screen size, flow rate, allowable pressure drop, and adsorption objectives.
How do 14×28 and 20×50 mesh compare?
The coarser 14×28 mesh generally supports lower pressure drop and more open flow. The finer 20×50 mesh generally provides greater external contact area and potentially faster adsorption kinetics, with comparatively higher pressure drop.
What is its surface area?
The manufacturer specification lists a BET surface area of at least 300 m²/g.
What is its bulk density?
The published bulk-density range is 35–46 lb/ft³, approximately 560–737 kg/m³.
Can DYNOCEL 900 be used as a desiccant?
Yes. Evonik states that it is suitable as a desiccant in all applications, subject to confirmation that its particle size and performance characteristics meet the system requirements.
Is it primarily a compressed-air dryer desiccant?
Its primary published positioning is as an impurity scavenger for vapor- and liquid-phase streams. For dedicated compressed-air dryer service, compare it with Evonik’s DRYOCEL line or the dryer manufacturer’s specified media.
What impurities can it remove?
Evonik describes it as particularly useful for low-level polar and ionic species. Additional Evonik literature identifies DYNOCEL 600 and 900 for reducing metals, soaps, color, and odor in compatible oil, fatty-acid, aqueous, and hydrocarbon streams.
Can it be regenerated?
It may be used in regenerative service where the adsorption system is designed accordingly. Temperature-swing or pressure-swing procedures must account for every adsorbed contaminant and the equipment design.
What package sizes are available from Sorbents Direct?
The current listing offers a 454 kg (1,000 lb) half pallet and a 908 kg (2,000 lb) full pallet in both 14×28 and 20×50 mesh options.
What package sizes does Evonik publish?
Evonik publishes 30 lb bags, 250 lb steel drums, and 1,800 lb supersacks for certain DYNOCEL 900 configurations. Sorbents Direct may be able to accommodate other packaging sizes depending on quantity and availability.
What is the shelf life?
The published shelf life is five years in the original packaging when stored dry, covered, elevated from the ground, and protected from sunlight, rain, and excessive heat.
What documentation is available?
Technical documentation, the current Safety Data Sheet, and a lot-specific Certificate of Analysis may be requested when available from the manufacturer.
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DYNOCEL® 900 Activated Alumina for Process Purification
