	US 11,987,565 B1
	Method and apparatus for tetrahydrocannabinol (THC) removal from hemp extracts via oxidation
Yebo Li, Powell, OH (US); and Lu Zhang, Jeffersonville, IN (US)
Assigned to HempRise, LLC, Jeffersonville, IN (US)
Filed by HempRise, LLC, Jeffersonville, IN (US)
Filed on Jul. 25, 2022, as Appl. No. 17/872,406.
Claims priority of provisional application 63/225,721, filed on Jul. 26, 2021.
Int. Cl. C07D 311/80 (2006.01)

CPC C07D 311/80 (2013.01)

10 Claims

1. A method of oxidative conversion of Δ9-tetrahydrocannabinol (Δ9-THC) to cannabinol (CBN) in a heated spray system assisted with ultraviolet (UV) lights comprising:

heating hemp oil in a pipeline to keep the hemp oil flowing freely in the system;

converting Δ9-THC to CBN comprising spraying the hemp oil as droplets in the presence of oxygen and UV lights;

recirculating the hemp oil for batch or semicontinuous operation.