Author
Luís A.C. Tarelho
Bio: Luís A.C. Tarelho is an academic researcher from University of Aveiro. The author has contributed to research in topics: Biomass & Combustion. The author has an hindex of 30, co-authored 146 publications receiving 3089 citations.
Topics: Biomass, Combustion, Flue gas, Stove, Fly ash
Papers published on a yearly basis
Papers
More filters
TL;DR: In this paper, an empirical model for the stoichiometry of biomass pyrolysis is presented, where empirical parameters are introduced to close the conservation equations describing the process, and the prediction capability of the model is briefly addressed, with the results showing that the yields of volatiles released from a specific biomass are predicted with a reasonable accuracy.
671 citations
TL;DR: The fly ashes contained significant levels of chloride and sulphate and it is suggested that the performance of fly ash-cement binders could be improved by the removal or control of these chemical species.
368 citations
TL;DR: In this article, the PM2.5 emissions from the residential wood combustion of common wood grown in Portugal were further characterised by a thermal-optical transmission technique and detailed identification and quantification of organic compounds by gas chromatography-mass spectrometry.
111 citations
TL;DR: In this paper, gas phase Fourier transform infrared (FTIR) measurements were obtained from the smoke from prescribed burnings of a shrub-dominated forest with some pine trees in Lousa Mountain, Portugal, in May 2008, have been collected.
110 citations
TL;DR: In this article, the PM2.5 emissions from seven species of trees grown in the Portuguese forest were analysed for organic and elemental carbon (OC/EC), water soluble ions (Na+, NH4+, K+, Mg2+, Ca2+, Cl−, NO3− and SO42−) and 67 elements.
91 citations
Cited by
More filters
TL;DR: A broad review of the state-of-the-art biomass pyrolysis research can be found in this article, where three major components (cellulose, hemicellulose and lignin) are discussed in detail.
1,613 citations
TL;DR: The influence of spray programs on the fauna of apple orchards in Nova Scotia XIV and its relation to the natural control of the oyster shell scale Lepidosaphes ulmi L.
Abstract: B6nassy, C., 1955. R6marques sur deux Aphelinid6s: Aphelinus mytilaspidis Le Baron et Aphytis proclia Walker. Annls l~piphyt. 6: 11-17. Lord, F. T. & MacPhee, A. W., 1953. The influence of spray programs on the fauna of apple orchards in Nova Scotia II. Oyster shell scale. Can. Ent. 79: 196-209. Pickett, A. D., 1946. A progress report on long term spray programs. Rep. Nova Scotia Fruit Grow. Ass. 83 : 27-31. Pickett, A. D., 1967. The influence of spray programs on the fauna of apple orchards in Nova Scotia XIV. Can. Ent. 97: 816-821. Tothill, J. D., 1918. The predacious mite Hemisarcoptes malus Shimer and its relation to the natural control of the oyster shell scale Lepidosaphes ulmi L. Agric. Gaz. Can. 5 : 234-239.
1,506 citations
TL;DR: In this article, the main steps of pyrolysis and the composition of the products obtained from each constituent were synthesized and the results were used to predict the reactivity and energy content of these products and evaluate their potential use as biofuels in renewable applications.
Abstract: The conversion of biomass by thermochemical means is very promising for the substitution of fossil materials in many energy applications. Given the complexity of biomass the main challenge in its use is to obtain products with high yield and purity. For a better understanding of biomass thermochemical conversion, many authors have studied in TG analyzer or at bed scale the individual pyrolysis of its main constituents (i.e. cellulose, hemicelluloses and lignin). Based on these studies, this original work synthesizes the main steps of conversion and the composition of the products obtained from each constituent. Pyrolysis conversion can be described as the superposition of three main pathways (char formation, depolymerization and fragmentation) and secondary reactions. Lignin, which is composed of many benzene rings, gives the highest char yield and its depolymerization leads to various phenols. The depolymerization of the polysaccharides is a source of anhydro-saccharides and furan compounds. The fragmentation of the different constituents and the secondary reactions produce CO, CO2 and small chain compounds. For temperature higher than 500 °C, the residues obtained from the different constituents present a similar structure, which evolves towards a more condensed polyaromatic form by releasing CH4, CO and H2. As the aromatic rings and their substituent composition have a critical influence on the reactivity of pyrolysis products, a particular attention has been given to their formation. Some mechanisms are proposed to explain the formation of the main products. From the results of this study it is possible to predict the reactivity and energy content of the pyrolysis products and evaluate their potential use as biofuels in renewable applications.
1,234 citations
TL;DR: In this paper, the effect of pyrolysis process parameters on the production of biochar through biochar of biomass is discussed and a comparison between the existing techniques is established in the present work.
Abstract: Biomass is considered to have potential to be used as an alternative energy source. High carbon content present in biomass converts it into high energy biochar on thermochemical treatment. Among few well established thermochemical technologies for the treatment of biomass and biogenic waste to produce high energy char along with oil and gaseous yield, pyrolysis is the most studied and discussed technique in the recent past. A comparison between the existing techniques is established in the present work. Production of char from the biomass and biogenic wastes is reviewed and it was found that yield of the biochar depends upon the biomass composition like moisture content and presence of cellulose or lignin. Pyrolysis product distribution and their quality strongly depend upon the process parameters. Different biomasses which can be used as raw material in pyrolysis are also reviewed and categorized depending upon their source. Pyrolysis process parameters such as temperature, heating rate, residence time etc. also influence the biochar yield. This study discusses the effect of these process parameters on the production of biochar through pyrolysis of biomass.
944 citations
TL;DR: The aim of this work was to comprehensively review most of the studies published on this topic in China, including literature concerning field measurements, laboratory studies and the impacts of BB indoors and outdoors in China to provide a basis for formulation of policies and regulations by policy makers in China.
772 citations