Methods and systems for recovering terpene compositions from wood drying exhaust

A method of controlling a composition of terpenes collected from a wood drying process, comprising:

• a. providing a sorbent having adsorbed materials from the wood drying process at a first temperature;
• b. heating the sorbent to a second temperature to release the adsorbed materials into a gaseous stream comprising terpenes;
• and
• c. collecting a terpene stream from the gaseous stream, wherein the terpene stream comprises alpha-pinene and/or beta-pinene,
• wherein the sorbent is heated to the second temperature within a desorber comprising one or more packed moving beds, and
• wherein an amount of volatile organic compounds in the exhaust stream is reduced by at least about 90%.