Patent ID: 11878983
Assignee: CIRCA GROUP LIMITED
Field: Organic fine chemistry (Chemistry)
Classification: CPC C  B | IPC B  C

Claim 0:
1. A method of producing levoglucosenone from particulate cellulosic material comprising,
forming a premix comprising particulate cellulosic material, water, acid and a polar organic solvent having a higher boiling point than levoglucosenone,
feeding the pre-mix into a pyrolysis reactor, maintained at a temperature within the range 250° C. to 450° C.,
withdrawing gaseous products and char from the pyrolysis reactor, and
condensing levoglucosenone and the polar organic solvent from the gaseous products,
wherein, the pyrolysis reactor comprises a reactor in which the pre-mix is fluidised by a fluidising gas.