P-15 Effect of organic acid addition on supercritical water gasification of Shochu Residue

Abstract

Char formation reduces carbon gasification efficiency and plugs the reactor in supercritical water gasification of biomass. Char can be suppressed by radical scavenger if the char is produced by radical reaction. Shochu residue as the commercial food waste was gasified in supercritical water together with acetic acid as radical scavenger in the continuous flow reactor at 600 ℃, 25 MPa. The residence time was set to be 94 s. The amount of solid decreased with the concentration acetic acid. Addition of acetic acid was effective for suppression of char.