Preliminary Work on VOC and HAP Recovery Using Ionic Liquids, 2004 Paper Summit, Spring Technical & International Environmental Conference, (including Papermakers; Process Control, Electrical & Information; Product & Product Quality)
VOC and HAP capture from dryer and press exhaust in the wood panel industry is difficult because there is a wide
range of compounds in dilute concentrations, a large gas volume, and high gas moisture content. Absorption into an
ionic liquid is proposed as a low-energy, low-cost way to clean exhaust gas. Ionic liquids are thermally stable to
almost 400EF, have no measurable vapor pressure, and can be regenerated with vacuum and reused. A wide range
of organic compounds are soluble in ionic liquids. The VOCs could be recovered for fuel or chemical products.
The solubility of VOCs will be tested in ionic liquids. A prototype absorption unit will be constructed to allow
long-term testing of the most promising ionic liquid on exhaust from a lumber kiln, panel press, and a green furnish
dryer. Successful completion of this project will provide the data and experience to allow commercialization of the
technology.
Preliminary Work on VOC and HAP Recovery Using Ionic Liquids, 2004 Paper Summit, Spring Technical &