US 11,890,573 B2
Methods and systems for controlling emissions from wood drying processes
Lawrence P Otwell, Fayetteville, GA (US); Kim Kristine Tutin, East Point, GA (US); Stephen Douglas Prout, Murfreesboro, NC (US); Harold R. Cowles, Scottsdale, AZ (US); Adam Krzysztof Sniady, Lilburn, GA (US); and Jim P Arduino, Smyrna, GA (US)
Assigned to BAKELITE CHEMICALS LLC, Atlanta, GA (US)
Appl. No. 16/965,551
Filed by BAKELITE CHEMICALS LLC, Penarth (GB)
PCT Filed Jan. 29, 2019, PCT No. PCT/US2019/015727
§ 371(c)(1), (2) Date Jul. 28, 2020,
PCT Pub. No. WO2019/148207, PCT Pub. Date Aug. 1, 2019.
Claims priority of provisional application 62/623,192, filed on Jan. 29, 2018.
Claims priority of provisional application 62/623,211, filed on Jan. 29, 2018.
Claims priority of provisional application 62/623,204, filed on Jan. 29, 2018.
Prior Publication US 2021/0046420 A1, Feb. 18, 2021
Int. Cl. B01D 53/72 (2006.01); B01D 53/047 (2006.01); B01D 53/08 (2006.01); B27K 5/00 (2006.01)
CPC B01D 53/72 (2013.01) [B01D 53/047 (2013.01); B01D 53/08 (2013.01); B27K 5/009 (2013.01); B01D 2253/102 (2013.01); B01D 2257/504 (2013.01); B01D 2257/702 (2013.01); B01D 2257/708 (2013.01); B01D 2257/80 (2013.01); B01D 2259/402 (2013.01); B01D 2259/40088 (2013.01); B27K 2240/10 (2013.01)] 26 Claims
OG exemplary drawing
 
1. A system for controlling emissions from a wood drying process, comprising:
an exhaust stream from a wood drying process, the exhaust stream comprising one or more of particulate wood matters, terpenes, formaldehyde, methanol, acetic acid, acetone, or fatty acids; and
an adsorber, coupled to the exhaust stream, the adsorber configured to contain a sorbent for capturing the one or more of particulate wood matters terpenes, formaldehyde, methanol, acetic acid, acetone, or fatty acids from the exhaust stream to generate a purified air stream containing less than 10 wt % of the one or more of particulate wood matters terpenes, formaldehyde, methanol, acetic acid, acetone, or fatty acids in the exhaust stream;
a desorber coupled to the adsorber and configured to desorb the one or more particulate wood matters, terpenes, formaldehyde, methanol, acetic acid, acetone, or fatty acids captured by the sorbent; and
a side stream reactivator configured to reactivate a portion of spent sorbent within the system, the side stream reactivator coupled to the desorber, the adsorber or both the adsorber and the desorber.