Improvement of wheat (T. aestivum) straw catalytic fast pyrolysis for valuable chemicals production by coupling pretreatment of acid washing and torrefaction

The present work investigated the coupling pretreatment of acid washing and torrefaction to address secondary cracking target products condensation intermediates improved bio-oil quality hydrocarbon selectivity catalytic fast pyrolysis (CFP) process. total yields in CFP increased from 28.06 wt% 55.31 by 46.29 pretreatment. resulted fewer acids phenols more sugars decreasing AAEMs. removal rate potassium was up 96.7 %, other elements were above 83 %. Torrefaction elevated C/O ratio higher calorific value biomass. It could also decrease content obtained In addition, TG/TGA results showed that temperature decreased weight loss Meanwhile, resolution two peaks DTG curve. These AAEMs inhibition elevate valuable chemical. • Acid removed facilitate chemicals conversion; wheat straw; hydrocarbons selection; with pretreated biomass reduced phenols, acids, ketones production.