US 11,806,666 B2
Methods and systems for recovering terpene compositions from wood drying exhaust
Adam Krzysztof Sniady, Lilburn, GA (US); Kim Kristine Tutin, East Point, GA (US); Stephen Douglas Prout, Murfreesboro, NC (US); Harold R Cowles, Scottsdale, AZ (US); Jim P Arduino, Smyrna, GA (US); and Lawrence P Otwell, Fayetteville, GA (US)
Assigned to BAKELITE CHEMICALS LLC
Appl. No. 16/965,538
Filed by BAKELITE CHEMICALS LLC, Penanth (GB)
PCT Filed Jan. 29, 2019, PCT No. PCT/US2019/015729
§ 371(c)(1), (2) Date Jul. 28, 2020,
PCT Pub. No. WO2019/148208, 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 2021/0069929 A1, Mar. 11, 2021
Int. Cl. B01D 53/02 (2006.01); 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)] 33 Claims
OG exemplary drawing
 
1. A method for recovering terpenes derived from a wood drying process, comprising:
providing a process exhaust stream from a wood drying process, the process exhaust stream comprising one or more terpenes;
flowing the process exhaust stream through a fluidized bed of sorbent within at least one adsorber, the sorbent configured to capture the one or more terpenes from the process exhaust stream at a first temperature;
flowing the sorbent having the captured terpenes through at least one desorber;
heating the fluidized sorbent within the at least one desorber to a second temperature sufficient to release the captured terpenes from the sorbent to provide a gaseous stream comprising the released terpenes; and
collecting the terpenes from the gaseous stream exiting the at least one desorber, wherein the gaseous stream exiting the at least one desorber comprises at least 90% of the terpenes from the process exhaust stream derived from the wood drying process,
flowing a side stream of the fluidized bed from the at least one desorber to a reactivator operated at a third temperature sufficient to thermally reactivate the sorbent; and
returning the reactivated sorbent to the at least one adsorber.