Air Emissions from the Manufacture of Inks

Area of Science:

• Environmental Science
• Chemical Engineering
• Industrial Emissions

Background:

• Volatile Organic Compound (VOC) emissions are a significant environmental concern in industrial manufacturing.
• Existing emission factors, such as those from the EPA's AP-42, may not accurately reflect real-world emissions from specific processes like ink manufacturing.
• Accurate emission factors are crucial for environmental permitting and regulatory compliance.

Purpose of the Study:

• To determine more accurate Volatile Organic Compound (VOC) emission factors for ink manufacturing processes.
• To compare new findings with existing estimates, specifically the EPA's AP-42 factors.
• To assess the impact of revised emission factors on regulatory permitting for ink manufacturers, particularly for Title V operating permits.

Main Methods:

• Utilized mass balance principles to quantify air emissions from ink manufacturing.
• Collected data from a diverse range of case studies involving ink mixing vessels.
• Weighed inputs before and after the mixing process to calculate the difference, representing air emissions.

Main Results:

• Determined a revised VOC emission factor of 44.7 lb per ton of manufactured ink.
• This revised factor is significantly higher than the EPA's AP-42 estimate of 30 lb/ton.
• The mass balance data provided a more precise measurement of VOC emissions compared to previous estimations.

Conclusions:

• The study concludes that 44.7 lb/ton is a more accurate VOC emission factor for ink manufacturing.
• The findings are expected to have a substantial impact on the permitting process for ink manufacturers.
• Updated emission data will facilitate more accurate Title V operating permit preparations and environmental compliance.