Title:
Control of Various Sulphur Compounds Emissions During Pyrolysis of Mixtures of Forest and Agricultural Wastes. Effect of Sulphur Concentration on Dioxins Formation
Author(s):
Román, S., Miranda, T., Rojas Rodríguez, S., González, J.F., Montero, I., Arranz Barriga, J.I., Nogales, S.
Document(s):
Paper
Abstract:
This work aims to study the thermal behaviour of olive pomace (OP), pyrenean oak (PK) and their blends under pyrolysis using thermogravimetric analysis (TGA). By coupling mass spectrometric analysis (MS) it was possible to monitorize the emissions released during the process. The OP/PK blends were prepared at five different ratios and experiments were carried out under non-isothermal conditions in the temperature range 25-750 ºC using Ar as inert gas. Thus, the following species were analysed: a) aromatic compounds (benzene and toluene), b) sulphur emissions (sulphur dioxide) c) chlorine compounds (dichloromethane) d) 1,4-dioxin and e) carbon dioxide. The results obtained indicated that aromatic compounds are released mainly in the temperature range of 275-455 ºC, where the most significant weight loss are observed in the TG curves. It was found that the maximum of the curves corresponding to these compounds is shifted towards lower values of temperature as the content of OP is increased, which could be related to higher the presence of some inherent minerals in this material (such as potassium). The intensity of sulphur dioxide and chloromethane emissions were related to the composition (S and Cl proportions) of the blends; also the peaks associated to these compounds was shift towards higher temperatures for lower OP contents in both cases.
Keywords:
biomass, emissions, pyrolysis
Topic:
Biomass resources
Subtopic:
Availability and cost of biomass resources
Event:
18th European Biomass Conference and Exhibition
Session:
VP1.1.30
Pages:
353 - 357
ISBN-13:
978-88-89407-56-1
ISBN-10:
88-89407-56-5
Paper DOI:
10.5071/18thEUBCE2010-VP1.1.30
Price:
FREE
