Hybrid Sorption Unit
♻️ DEC.HSU™ ♻️
optimizing Air Pollution Control for Complex Industrial Emissions
The management of Volatile Organic Compounds (VOCs) in large scale industrial processes requires a balance between technical efficiency and operational costs; the DEC.HSU™ Hybrid Sorption Unit represents a modular smart and sophisticated configuration engineered by DEC to address these challenges. This hybrid system integrates an advanced Rotary Bed Concentrator (RBC™) with an Activated Carbon (ACA™) Solvent Recovery Unit (SRU™), coupling the use of Honeycomb Coated Adsorbent (HCA™) and Activated Carbon (ACA™) to provide a comprehensive solution for diverse VOC emission profiles.
Technical Configuration and Process Flow • DEC.HSU™ (Hybrid Sorption Unit)
The core logic of the DEC.HSU™ involves the intelligent segregation of gas streams based on their solvent concentration. In many converting and industrial printing facilities, emission sources are not uniform; the hybrid unit processes these streams through two distinct paths.
✦ Low Concentration Streams (upstream RBC™): large volumes of air with low VOC concentrations (e.g. < 1,5 g/m3), such as fugitive emissions or exhaust from older machinery, are directed to the RBC™. The RBC™ acts as an external concentration device, capturing VOCs onto a rotating adsorbent bed and desorbing them into a much smaller, highly concentrated flow.
✦ Medium-High Concentration Streams (direct SRU™) : process streams that already contain medium to high levels of solvents (e.g. > 1,5 g/m3) are routed directly to the activated carbon adorption system SRU™, bypassing the concentrator to maximize recovery efficiency.
✦ Integrated Emission Point: to simplify environmental monitoring and reduce infrastructure costs, the Flue Gas Stack (FGS) of the RBC™ can be merged with the FGS of the SRU™; this allows the Customer to maintain a single emission point for the entire Air Pollution Control plant.
Management of Fugitives and Legacy Equipment • DEC.HSU™ (Hybrid Sorption Unit)
A significant advantage of the DEC.HSU™ is its ability to treat "fugitives" and non-concentrated exhaust from older converting lines. These streams are typically characterized by high flow rates (SLA - solvent laden air) but very low VOC concentrations, which makes direct treatment in an SRU™ energetically inefficient.
By utilizing the RBC™ (rotor) as an external concentration step, the Customer may evaluate to avoid the need to retrofit individual machines with Lower Explosive Limit (LEL) automatic Flow Recirculation Systems (FRS™). Retrofitting old production lines with LEL controls often requires extensive line shutdowns and complex mechanical modifications; the DEC.HSU™ provides a "bolt-on" solution that treats the combined exhaust, without interrupting the production schedule of the individual machines.
Key Advantages of the technology • DEC.HSU™ (Hybrid Sorption Unit)
The implementation of a hybrid sorption strategy offers several proven benefits for the Customer.
✦ Reduced Capital Expenditure (CAPEX): by concentrating the low VOC streams before they reach the SRU™, the recovery unit can be sized for a smaller, more concentrated flow rather than the total plant air volume.
✦ Operational Efficiency (OPEX): the system reduces the energy consumption required for solvent recovery, as the SRU™ operates under optimal thermodynamic conditions.
✦ Minimal Production Downtime: as an external solution, the installation and commissioning of the DEC.HSU™ do not require the long-term stoppage of existing production lines.
✦ Regulatory Compliance: the system is a referenced and proven technology that ensures strict adherence to international emission limits while providing a single, manageable discharge point.
Proven Reliability and Industry References • DEC.HSU™ (Hybrid Sorption Unit)
DEC is the major global player in sustainable Air Pollution Control (APC) systems. The DEC.HSU™ is a field-tested configuration with numerous successful references across the globe. Whether dealing with a Solvent Recovery Unit (SRU™), a Thermal Oxidizer (XTO™), a Rotary Bed Concentrator (RBC™), the technical expertise of DEC ensures that our Customer receives a reliable and high-performance system.
contact DEC • DEC.HSU™ (Hybrid Sorption Unit)
If you are looking for a reliable and efficient industrial VOC abatement system, the Hybrid Sorption Unit (HSU™) is the right and best option: DEC offers the most advanced and reliable sustainable emission control systems on the market, with processes, configurations and options to meet the needs of different applications, present and future challenges.
Feel free to contact DEC: we can help you assess your needs and recommend the best Air Pollution Control technology for your operation.
