Low-Cost, Regenerable Air Filter for Efficient Gaseous Pollutants Removal

EPA Contract Number: EPD14017
Title: Low-Cost, Regenerable Air Filter for Efficient Gaseous Pollutants Removal
Investigators: Junaedi, Christian
Small Business: Precision Combustion, Inc.
EPA Contact: Richards, April
Phase: I
Project Period: May 1, 2014 through April 30, 2015
Project Amount: $99,897
RFA: Small Business Innovation Research (SBIR) - Phase I (2014) RFA Text |  Recipients Lists
Research Category: Small Business Innovation Research (SBIR) , Air Quality and Air Toxics , SBIR - Air Pollution Monitoring and Control


Precision Combustion, Inc. (PCI) proposes to develop a regenerable, low-cost, high-efficiency pollution control technology for removal of gaseous pollutants from contaminated air streams. This innovative air filter technology will combine our novel proprietary Microlith® support elements with sorbent nanomaterials that can be tailored to capture a variety of targeted gaseous pollutants. Originally developed for spacecraft and space station cabin atmosphere revitalization systems, Microlith®-based adsorbers have been demonstrated to be superior (i.e., lower power consumption, lighter and smaller size) to existing technologies, such as pellets and monoliths. Additionally, this technology offers the benefits of low pressure drop, rapid in situ regeneration, high adsorbent utilization, longer adsorbent life, design modularity and adsorbent flexibility, as well as tunability and control of desorption rate and adsorbent bed temperature. These features will support a system offering reliably high air quality at a lower lifecycle cost than is achieved with disposable filter-based systems, and in a form factor that is suitable for retrofit installation. In Phase 1, a bench-scale adsorbent air cleaner filter will be developed to demonstrate thermal stability and ability to maintain > 90 percent adsorption activity following exposures to chemical contaminants, such as volatile organic compounds (VOCs) in ambient air for multiple adsorption­desorption cycles. The prototype’s ability to capture and release the VOCs with tunable adsorption and regeneration kinetics will be demonstrated. PCI’s regenerable air cleaner module faces target entry markets in building systems where high air quality is a critical concern, filter change-outs are limited and existing regenerable systems are too large and/or consume too much energy.  The approach offers a cost-saving route to improved indoor air quality in industrial and commercial buildings, and potentially in homes.

Supplemental Keywords:

gas, pollutants, air stream, adsorber, filter, air quality

Progress and Final Reports:

  • Final Report
  • SBIR Phase II:

    Low-Cost, Regenerable Air Filter for Efficient Gaseous Pollutants Removal  | Final Report