title: Effect of temperature and pressure on characteristics and reactivity of biomass-derived chars.
abstract: This study evaluates the influence of pyrolysis temperature (350-450°C) and pressure (0.1-2.0MPa) on product yields and char properties. Spruce chars were produced under slow pyrolysis conditions in a fixed bed reactor. Special attention was devoted to the study of the oxidation reactivity of the produced chars, and its relationship with the evaluated char properties. The obtained results showed that the effect of the pyrolysis condition on char production and in particular on the mechanism of secondary char formation strongly influenced the char reactivity. Additionally it has been observed that the interval of temperature between 350 and 450°C may be key in the mechanism of tar repolymerization. The information provided in this study is of great interest for the determination of optimal operation conditions and the design of new gasification concepts or the development of bioenergy carriers via pyrolysis technologies.
authors.affiliation: Departament d'Enginyeria Química, Universitat Rovira i Virgili, Av. Països Catalans, 26, Tarragona 43007, Spain.
authors.forename: J
authors.initials: J
authors.lastname: Recari
authors.affiliation: Bioenergy and Biofuels Area, Catalonia Institute for Energy Research, IREC, C/Marcel·lí Domingo, 2, Tarragona 43007, Spain. Electronic address: cberrueco@irec.cat.
authors.forename: C
authors.initials: C
authors.lastname: Berrueco
authors.affiliation: Bioenergy and Biofuels Area, Catalonia Institute for Energy Research, IREC, C/Marcel·lí Domingo, 2, Tarragona 43007, Spain.
authors.forename: S
authors.initials: S
authors.lastname: Abelló
authors.affiliation: Departament d'Enginyeria Química, Universitat Rovira i Virgili, Av. Països Catalans, 26, Tarragona 43007, Spain; Bioenergy and Biofuels Area, Catalonia Institute for Energy Research, IREC, C/Marcel·lí Domingo, 2, Tarragona 43007, Spain.
authors.forename: D
authors.initials: D
authors.lastname: Montané
authors.affiliation: Departament d'Enginyeria Química, Universitat Rovira i Virgili, Av. Països Catalans, 26, Tarragona 43007, Spain.
authors.forename: X
authors.initials: X
authors.lastname: Farriol
mesh_terms: D056804:Biofuels; D018533:Biomass; D006358:Hot Temperature; D010084:Oxidation-Reduction; D010316:Particle Size; D016062:Porosity; D011312:Pressure; D013696:Temperature; D014934:Wood / Q000737:chemistry*
chemical_list: D056804:Biofuels
keywords: Biomass; Char; Fixed bed reactor; Pyrolysis; Reactivity