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 |
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.
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