Catalytic pyrolysis of wood biomass in an auger reactor using calcium-based catalysts.

Abstract:

:Wood catalytic pyrolysis using calcium-based materials was studied in an auger reactor at 450°C. Two different catalysts, CaO and CaO·MgO were evaluated and upgraded bio-oils were obtained in both cases. Whilst acidity and oxygen content remarkable decrease, both pH and calorific value increase with respect to the non-catalytic test. Upgrading process was linked to the fact that calcium-based materials could not only fix the CO2-like compounds but also promoted the dehydration reactions. In addition, process simulation demonstrated that the addition of these catalysts, especially CaO, could favour the energetic integration since a lowest circulation of heat carrier between combustor and auger reactor should be needed. An energy self-sustained system was obtained where thermal energy required for biomass drying and for pyrolysis reaction was supplied by non-condensable gas and char combustion, respectively.

journal_name

Bioresour Technol

journal_title

Bioresource technology

authors

Veses A,Aznar M,Martínez I,Martínez JD,López JM,Navarro MV,Callén MS,Murillo R,García T

doi

10.1016/j.biortech.2014.03.146

subject

Has Abstract

pub_date

2014-06-01 00:00:00

pages

250-8

eissn

0960-8524

issn

1873-2976

pii

S0960-8524(14)00451-9

journal_volume

162

pub_type

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