Journal ArticleDOI
Mechanisms of liquefaction and pyrolysis reactions of biomass
TLDR
In the liquefaction process, the micellar-like broken down fragments produced by hydrolysis are degraded to smaller compounds by dehydration, dehydrogenation, deoxygenation and decarboxylation as mentioned in this paper.About:
This article is published in Energy Conversion and Management.The article was published on 2000-04-01. It has received 904 citations till now. The article focuses on the topics: Deoxygenation & Thermal depolymerization.read more
Citations
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Journal ArticleDOI
Thermal and compositional properties of treated Tectona grandis
TL;DR: In this paper, a torrefaction parametric study was conducted on Tectona grandis at varying tororeaction temperatures (240-300°C), residence times (30-60min), and particle sizes (2-6mm) using a full factorial design (FFD).
Journal ArticleDOI
Study on the Pyrolysis of Cellulose for Bio-Oil with Mesoporous Molecular Sieve Catalysts
TL;DR: Mesoporous molecular sieve catalysts were benefit to the reaction of dehydrogenation and deoxidation and the breakdown of carbon chain and can produce more toluene and 2-methoxy-phenol, as compared to the non-catalytic runs.
Journal ArticleDOI
In line upgrading of biomass fast pyrolysis products using low-cost catalysts
Enara Fernandez,Laura Santamaria,Maite Artetxe,Maider Amutio,Aitor Arregi,Gartzen Lopez,Gartzen Lopez,Javier Bilbao,Martin Olazar +8 more
TL;DR: In this article, the in-line catalytic cracking of the pyrolysis volatile stream has been approached in a conical spouted bed reactor at 500°C, whereas the inert sand or the cracking catalysts (γ-Al2O3, spent FCC and olivine) were placed in a fixed-bed reactor at 600°C.
Journal ArticleDOI
Opportunities and Barriers to Bioenergy Conversion Techniques and Their Potential Implementation on Swine Manure
Mahmoud A. Sharara,Sammy Sadaka +1 more
Abstract: The objectives of this article are to offer a comprehensive evaluation of the opportunities and barriers for swine manure conversion technologies and to shed light on the gaps that might require further investigation to improve the applicability of these technologies. The challenges of manure management have been propagated alongside the global growth of swine production. Various technologies that target the production of energy, fuels, and bioproducts from swine manure have been reported. These technologies include pretreatments, i.e., drying, and solid separation; biological techniques, i.e., composting, anaerobic digestion, and biodrying; and thermochemical techniques, i.e., combustion, gasification, pyrolysis, liquefaction, and carbonization. The review highlights the yields and qualities of products, i.e., energy, gaseous fuel, liquid fuel, and solid fuel, of each technology. It exhibits that the choice of a conversion technology predominantly depends on the feedstock properties, the specifics of the conversion technique, the market values of the end products as well as the local regulations. The challenges associated with the presented techniques are discussed to ameliorate research and development in these areas. The notable finding of this paper is that there is a need for full-scale research in the area of thermochemical conversion of solid-separated swine manure.
Dissertation
Base-catalyzed depolymerization of lignin and hydrodeoxygenation of lignin model compounds for alternative fuel production
TL;DR: In this paper, a base-catalyzed depolymerization (BCD) of organosolv lignin was done in a 500-mL Monel Parr reactor at temperatures ranging from 165°C to 350°C.
References
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Book
Advanced Organic Chemistry: Reactions, Mechanisms, and Structure
TL;DR: Localized Chemical bonding Delocalized Chemical Bonding Bonding Weaker than Covalent Stereochemistry Carbocations, Carbanions, Free Radicals, Carbenes and Nitrenes Mechanisms and Methods of Determining them Photochemistry Acids and Bases Effects of Structure on Reactivity Aliphatic Nucleophilic Substitution Aromatic Electrophilic Substitutes Aliphatically Electrophilic Substitution Free-Radical Substitution Addition to Carbon-Carbon Multiple Bonds Adding to Carbon Hetero Multiple Bonds Eliminations Rearrangements Ox
BookDOI
Wood: chemistry, ultrastructure, reactions.
Dietrich Fengel,Gerd Wegener +1 more
TL;DR: The anatomy and chemistry of wood are described in detail, and with extensive reference to the literature, under the following headings: Introduction; Structure and ultrastructure; Chemical composition and analysis of wood; Cellulose; Polyoses (hemicelluloses); Lignin; Extractives; Distribution of the components within the wood cell wall; Constituents of bark; Reactions in acidic medium; reactions in alkaline medium; Influence of temperature; Degradation by light and ionizing rays; Microbial and enzymatic degradation; Aging and fossilization; Pul
Book
Textbook of Wood Technology
A. J. Panshin,C. de Zeeuw +1 more
TL;DR: The first part deals with the formation, anatomy and properties of wood, and the second part is important for the numerous means of identifying woods which it contains as discussed by the authors, including anatomical means, structural features, physical characteristics, figure as it is related to the various planes of cut, and by chemical means.
Journal ArticleDOI
Lignin chemistry—past, present and future
TL;DR: Later development, beginning with the dehydrogenation theory and experimental studies on the de-hydrogenative polymerization of p-hydroxycinnamyl alcohols, is reviewed in this article.
Journal ArticleDOI
Recent progress in the chemistry of wood hemicelluloses
TL;DR: In this article, the present status of the chemistry of wood hemicelluloses is summarized, with special emphasis on recent contributions, and problems still to be solved in wood chemistry are discussed, and an attempt is made to predict future developments in this field.