Journal ArticleDOI
Influence of particle size and pyrolysis conditions on yield, density and some textural parameters of chars prepared from holm-oak wood
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In this article, the authors used sawdust, cubes (20 × 20 × 20 mm) and octagonal prisms (20× 20 × 80 mm) by heating in nitrogen under dynamic (sawdust and cubes) and isothermal (sawdust and prisms) conditions to different final temperatures.About:
This article is published in Journal of Analytical and Applied Pyrolysis.The article was published on 1987-06-01. It has received 50 citations till now. The article focuses on the topics: Sawdust.read more
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Characterization and prediction of biomass pyrolysis products
Daniel Santos Felix Neves,Daniel Santos Felix Neves,Henrik Thunman,Arlindo Matos,Luís A.C. Tarelho,Alberto Gómez-Barea +5 more
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.
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Operating parameters for bio-oil production in biomass pyrolysis: A review
TL;DR: In this paper, a review on parameters that influence the pyrolysis process, such as temperature, reaction time, heating rate, gas flow rate, feed rate, particle size and biomass composition, is presented.
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FT-IR study of rockrose and of char and activated carbon
Vicente Gómez-Serrano,J. Pastor-Villegas,A. Perez-Florindo,C.J. Durán-Valle,C. Valenzuela-Calahorro +4 more
TL;DR: Fourier transform-infrared spectroscopy was used in the study of rockrose (Cistus ladaniferus, L.) and rockrose chars and activated carbons as mentioned in this paper.
Journal Article
Influence of biochar application on sandy soil hydraulic properties and nutrient retention
TL;DR: In this article, the effect of biochar on sandy soil hydraulic properties and nutrient (nitrate and phosphorus) retention were investigated, and it was found that biochar produced at 500°C with 20 Mg ha -1 rate exhibited the highest impact.
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Formation of oxygen structures by air activation. A study by FT-IR spectroscopy
TL;DR: In this article, the formation of oxygen structures in activated carbon is investigated using cherry stones (CS) as starting material and commonly air as activating agent, and the activation at 250°C in air results in activated carbons that contain different oxygen structures when CS is carbonized at 450 or 600°C.
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Char yield on pyrolysis of cellulose
A. Broido,Maxine A. Nelson +1 more
TL;DR: The authors showed that partial pyrolysis at a lower temperature increases the char yield subsequently obtained after 1 h at 370°C at inert medium or in air, and that two competing sequences of cellulose pyrolys reactions are initiated by intermolecular dehydration and a char-free depolymerization leading to flaming combustion.
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Rapid devolatilization and hydrogasification of bituminous coal
TL;DR: In this paper, a coal conversion model was developed that accounts for thermal decomposition of the coal, secondary char-forming reactions of volatiles, and homogeneous and heterogeneous reactions involving hydrogen.
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The bet method of analysis of gas adsorption data and its relevance to the calculation of surface areas
TL;DR: The theoretical background to the BET theory is outlined and a critical examination made of the two parameters calculated from this theory -the BET C constant and the monolayer capacity as mentioned in this paper.
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Effect of carbon deposition on porosity and reactivity of a lignite char
TL;DR: In this paper, carbon deposition from the cracking of methane into the pores of a lignite char occurs at a significant rate at temperatures between 815 and 855 °C. Carbon deposition has a large and lasting adverse effect on the subsequent reactivity of the char to air.
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Effect of carbonization on the porosity of beechwood
TL;DR: In this article, the porosity of carbonized wood was measured by scanning electron microscopy and measured by mercury porosimetry, and it was shown that porosity corresponds to the untreated wood modified by thinning down of cellular walls and by macroscopic contraction of the entire sample.