#TechTalk – The Next Generation of Pentane Control

Pentane is an essential blowing agent in Expanded Polystyrene (EPS) production, but emissions can occur throughout manufacturing, handling, and storage. Effective control begins with identifying emission sources and designing the collection system around actual process conditions.

With decades of experience serving the EPS industry, Ship & Shore Environmental (S&SE) develops integrated solutions for pentane and VOC control, combining emission collection, thermal oxidation, and energy recovery.

Common Pentane Emission Sources

Pentane may be released during:

• Raw-material bead box opening
• Pre expansion and fluid-bed drying
• Material transfer and aging
• Enclosed aging rooms and metal silos
• Hot-room operations
• Product storage
• Regrind and recycling
• Areas with EPS dust accumulation

Each source can have different emission rates and airflow requirements, making proper system design critical to reliable control.

1. Regenerative Thermal Oxidizers

Regenerative Thermal Oxidizers (RTOs) provide an energy-efficient method for destroying pentane and other VOCs. S&SE RTOs can achieve more than 99% VOC destruction efficiency while recovering heat from the treated exhaust.

The regenerative heat-transfer process returns recovered thermal energy to the incoming process air, reducing supplemental fuel demand and helping lower operating costs.

2. Permanent Total Enclosures

Permanent Total Enclosures (PTEs) are designed to contain emissions from selected process areas and prevent uncontrolled releases. When combined with an RTO or other control device, PTEs can:

• Improve containment of fugitive emissions
• Direct collected exhaust to the control system
• Maintain controlled airflow around emission sources
• Support compliance testing and monitoring

3. Heat Recovery

Additional energy savings can be achieved through technologies such as stack economizers, feedwater make-up heat exchangers, and combustion-air preheaters.

Depending on system conditions, these technologies can reduce exhaust temperatures to approximately 300°F, decrease cooling-water requirements, and return useful heat to the process. Combined measures can improve overall system efficiency by approximately 4%.

Engineered Pentane Control

By integrating source capture, PTEs, RTOs, and heat recovery, S&SE helps EPS manufacturers address pentane emissions while improving energy utilization and controlling operating costs.

For further assistance, please call us at +1 (562) 997-0233 or email service@shipandshore.com.

#ShipandShoreEnvironmental #Pentane #PTE