Gas-trap Capturing of Enzyme Inhibitors in Explosion Gas from the Pretreatment of Corn Stalk with Dilute-Sulfuric Acid Steam

Huanlei Yang, Jun Li, Lihuan Mo, Jun Xu


In order to reduce production costs, heated explosion gases generated from dilute-sulfuric acid catalytic steam explosion (SE) pretreatment in the pilot production were recovered to provide energy for subsequent steps and to supply heated water (gas condensate water) for the washing steps. However, organic compounds in the explosion gases accumulated in the circulating water during continuous production, which affected subsequent enzymatic hydrolysis steps. The aim of this work was to investigate the major organic components in SE pretreatment gaseous products, their formation mechanism, and their inhibitory effects on the subsequent enzymatic hydrolysis of pretreated corn stalk.


Explosion gas; Pretreatment; Enzymatic hydrolysis; Inhibitory effect; Corn stalk

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