title: Effect of acid additives on sugarcane bagasse pyrolysis: Production of high yields of sugars.
abstract: The aim of this work was to improve sugarcane bagasse thermochemical conversion to pyrolytic sugars production, particularly to levoglucosan. The experiments were carried out evaluating the effect of acid washing with HNO3(0.1wt.%) followed by H2SO4addition (0.1, 0.2 and 0.3wt.%) at pyrolysis temperatures of 350, 400, 450, 500, 550 and 600°C was studied by Py-GC/MS. The experimental results showed that HNO3washing, followed by H2SO4concentration of 0.2wt.% at 350°C resulted in an increase in levoglucosan yield between 5 and 7 times the yield obtained when the raw bagasse was processed. Thus, these results are very attractive to improve pyrolytic sugars production in sugarcane bagasse by previously acid treatment to pyrolysis technology.
authors: Processes Engineering Sector, State University of Northern of Rio de Janeiro, Brazil; Biological System Engineering, Washington State University, Pullman, WA, USA.
authors: Geraldo Ferreira
authors: GF
authors: David
authors: Processes Engineering Sector, State University of Northern of Rio de Janeiro, Brazil; Biological System Engineering, Washington State University, Pullman, WA, USA. Electronic address: victorhaberperez@gmail.com.
authors: Victor Haber
authors: VH
authors: Perez
authors: Biological System Engineering, Washington State University, Pullman, WA, USA; Estácio de Sá University, Campos dos Goytacazes. RJ, Brazil.
authors: Oselys
authors: O
authors: Rodriguez Justo
authors: Biological System Engineering, Washington State University, Pullman, WA, USA.
authors: Manuel
authors: M
authors: Garcia-Perez
mesh_terms: D002482:Cellulose / Q000737:chemistry*; D005947:Glucose / Q000031:analogs & derivatives / Q000737:chemistry; D017942:Nitric Acid / Q000737:chemistry*; D031786:Saccharum / Q000737:chemistry*; D013464:Sulfuric Acids / Q000737:chemistry*; D013696:Temperature
chemical_list: D013464:Sulfuric Acids; D017942:Nitric Acid; C014989:1,6-anhydro-beta-glucopyranose; D002482:Cellulose; C027433:bagasse; D005947:Glucose; C033158:sulfuric acid
keywords: 1,6-Anhydro-beta-d-glicopyranose; Acid treatment; Fast pyrolysis; Levoglucosan; Sugarcane bagasse