Thermal Oxidizers
Adsorption Systems
Reliable and Cost-Effective Solutions for Odor and Contaminant Control
EIS adsorption systems provide efficient, economical removal of Volatile Organic Compounds (VOCs), odors and toxic gases from industrial exhaust streams. Using activated carbon and other specialized adsorbent materials, our systems capture and remove contaminants through a combination of high surface area and electrostatic forces, offering reliable performance for applications ranging from low-concentration odor control to toxic gas polishing.
Understanding Activated Carbon
Activated carbon is a specially treated carbon material that has been chemically and/or thermally processed to expose its inner pore structure. This treatment creates the characteristic high surface area that makes activated carbon an exceptional adsorbent material.
- Versatility: Effective for wide range of VOCs, odors and toxic gases
- Surface Area: 800-1,500 m²/g of material—equivalent to a football field contained in a teaspoon of carbon
- Pore Structure: Complex network of microscopic pores that trap contaminant molecules
- Electrostatic Forces: Natural attraction between carbon surface and organic compounds
Adsorption System Technologies
EIS offers multiple adsorption system configurations, each optimized for specific operating conditions and economic requirements.
Sacrificial Adsorption Systems
Sacrificial adsorption systems are ideal for:
Odor control in process streams with very low inlet concentrations.
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Toxic gas polishing for enhanced air quality.
These systems use fixed beds of activated carbon to adsorb contaminants. The process continues until the carbon is fully utilized, at which point it is replaced.
Key Features:
Activated Carbon Technology: High surface area (800-1,500 m²/g) ensures efficient contaminant capture.
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Enhanced Adsorption: Electrostatic forces and optional reagent impregnation improve performance.
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Cost-Effective: Reliable, predictable performance with low capital investment.
In-Site Regenerated Systems
When contaminant loading is too high for economical sacrificial carbon replacement but not sufficient to justify thermal oxidation, regenerable adsorption systems provide the optimal solution. These systems use the same adsorption principles but incorporate on-site regeneration to restore carbon capacity without vessel replacement.
How It Works:
Contaminants are adsorbed onto the carbon, similar to sacrificial systems.
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The carbon is periodically purged or “desorbed” using pressurized steam.
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The resulting condensate is either disposed of or recycled.
Key Features:
Reduced Carbon Replacement Costs: Regeneration minimizes the need for frequent carbon replacement.
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Sustainability: Recycled condensate reduces waste and environmental impact.
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Efficient Performance: Maintains high adsorption efficiency over multiple cycles.
Solvent Recovery Systems
For applications where recovered solvents have economic value or where waste disposal costs are significant, EIS adsorption systems can be configured for high-purity solvent recovery. When solvents are not miscible with water, the condensate from steam desorption naturally separates into distinct layers, allowing the solvent layer to be decanted off and recovered to a high purity.
How It Works:
The adsorption process captures solvents from the process stream.
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The solvent layer is decanted off and recovered to a high purity.
Key Features:
High Purity Recovery: Solvents are recovered in a usable form, reducing waste.
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Cost Savings: Recovered solvents can be reused, lowering operational costs.
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Sustainability: Reduces the need for new solvent purchases and minimizes environmental impact.
Concentrator Systems
Adsorption technology is also used in rotary concentrators, which are ideal for applications requiring VOC concentration before destruction.
Key Features:
VOC Concentration: Captures and concentrates VOCs for cost-effective destruction.
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Integrated Technology: Works seamlessly with thermal or catalytic oxidizers.
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Energy Efficiency: Reduces the size and operating costs of downstream systems.
For more details, visit the Rotary Concentrators section of our website.
Key Benefits of EIS Adsorption Systems
Low Capital Investment
Most cost-effective emission control solution for low to moderate VOC concentrations
Minimal Energy Consumption
No combustion or high-temperature operation—systems operate at ambient conditions with fan power only
Proven Technology
Decades of reliable performance across diverse industries and applications
Flexible System Design
Available in sacrificial or regenerable configurations to match your specific economic and operational requirements
Solvent Recovery Capability
Regenerable systems enable recovery of high-purity solvents, reducing costs and environmental impact
Enhanced Removal Options
Impregnated carbons available for specialized applications including odor control and toxic gas polishing
