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Showing 1 to 17 of 17 for “"BIOMASS PYROLYSIS"”.
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Evaporation of biomass pyrolysis oil as single droplets
Biomass pyrolysis oil is an organic liquid produced by the pyrolysis of biomass materials. The fuel is known as a clean, cost-effective, renewable resource and a potential replacement for petroleum fuels in boiler, gas turbine, and diesel engine applications. The fuel oils are usually introduced …
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Viscosity and aging of biomass pyrolysis oils from various feedstocks
Includes bibliographical references (leaves 52-61).
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Modeling, Software Simulation and Preliminary Test of a Biomass Pyrolysis Pilot Plant
… da un impianto pilota per la pirolisi delle biomasse, permettendo un’adeguata scelta dei parametri operativi e una conseguente ottimizzazione del processo. Inoltre è stata svolta un’analisi riguardo una linea di recupero energetico in grado di valorizzare i prodotti ottenuti e ridurre …
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Technical and economic simulation of biomass pyrolysis processes for fuels and electricity
… environmentally friendly energy sources. Biomass is an available alternative resource which may be converted by flash pyrolysis to produce a crude liquid product that can be used directly to substitute for conventional fossil fuels or upgraded to a higher quality fuel. Both the crude and …
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Development of Heterogeneous Catalysts for Upgrading Biomass Pyrolysis Bio-Oils into Advanced Biofuels
… be upgraded from bio-oils that are derived from biomass pyrolysis. Catalytic cracking and hydrodeoxygenation (HDO) are two most promising bio-oil upgrading techniques for biofuel production. Heterogeneous catalysts are essential for upgrading bio-oil into hydrocarbon biofuel. Although some …
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Rural electrification from local resources : biomass pyrolysis oil combustion in a direct injection diesel engine
… the production process continues to be refined, biomass pyrolysis oils are increasingly being considered as potentially feasible renewable fuels. Combustion of pyrolysis oils in diesel engines has been scarcely studied, and the few studies which have been performed indicate that these fuels …
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Deciphering Biomass Fragmentation using Millisecond Microreactor Kinetics
Pyrolytic conversion of lignocellulosic biomass utilizes high temperatures to thermally fragment biopolymers to volatile organic compounds. The complexity of the degradation process includes thousands of reactions through multiple phases occurring in less than a second. The underlying chemistry of …
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Hygroscopic growth and cloud condensation nuclei activity of fresh and chemically-aged biomass-pyrolyzed organic aerosol
Biomass burning is one of the prominent contributors of organic aerosols and cloud condensation nuclei (CCN) in the atmosphere. Aerosol-cloud interactions contribute to uncertainties in estimates of climate forcing, not only because of the complexities in their initial size and chemical …
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Biomass characterization and reduced order modeling of mixed-feedstock gasification
… the differences and similarities between biomass and coal, with emphasis on the state of the art in biomass pyrolysis/devolatilization modeling. An existing coal Entrained Flow Gasification (EFG) Reduced Order Model (ROM) was expanded to more accurately simulate the gasification of a mixed …
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Reductive Dehalogenation by Aqueous Biochars
… (BCs), carbon-rich products obtained from biomass pyrolysis, have been used as cost-effective materials for environmental remediation and wastewater treatment processes. Although BCs were primarily used as passive sorbents, recent studies have uncovered their reactivity toward the …
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Fast microwave-assisted thermochemical conversion of biomass for biofuel production
… renewable energy sources. In this respect, biomass provides a carbon-neutral and sustainable solution. Pyrolysis and gasification belong to thermochemical processes which are currently the most appropriate and widely used among all the biomass utilization technologies. Microwave irradiation …
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Investigation of Volatile Products from Wood Pyrolysis
… to evaluate the influence of heating rates on pyrolysis products obtained from wood pyrolysis and to evaluate the influence of acid pre-treatment on pyrolysis products. Depending on the wood heating rates, pyrolysis can be categorized as Flash pyrolysis, Fast pyrolysis, and Slow pyrolysis. We …
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Understanding the role of local condensed phase environments in pyrolytic and catalytic biomass conversion
Biomass conversion generally involves two major sets of chemical transformations – (1) thermal breakdown of macromolecules in the feedstock, such as cellulose, to smaller sugars and oxygenates via fast pyrolysis followed by (2) catalytic upgrading to the desired fuels or precursor chemicals. These …
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Co-Pyrolysis and Co-Combustion of Coal and Biomass
… different feedstocks, for example coal and biomass. When coal is co-utilized with biomass there is added attractiveness because the biomass is C02 neutral, and there is interest in using wood waste, short rotation woody crops (e. g. willow coppice), or herbaceous crops (e. g. Miscanthus), …
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Mechanistic and spectroscopic methods for identifying reactive intermediate structures and active site properties over metals, metal oxides, and metal phosphides
Catalytic upgrading of biomass derivatives (i.e., ethanol from fermentation and bio-oil from pyrolysis) requires increased understanding of reaction mechanisms and catalyst properties in order to improve the design of highly selective, reactive, cost effective, and stable catalysts. In situ …
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ΜΟΝΤΕΛΟΠΟΙΗΣΗ ΤΗΣ ΠΥΡΟΛΥΣΗΣ ΛΙΓΝΟΚΥΤΤΑΡΙΚΩΝ ΥΛΙΚΩΝ
THE PYROLYSIS OF VARIOUS LIGNOCELLULOSIC MATERIALS WAS STUDIED IN ORDER TO MODELIZE THE KINETICS OF BOTH PRIMARY AND SECONDARY REACTIONS AS ALSO TRANSPORT PHENOMENA. MODELLING WAS BASED ON EXPERIMENTAL DATA OBTAINED BY MEANS OF THERMAL ANALYSIS TECHNIQUES. THE MODEL OF INTERMEDIATE STEP COMPOSITION …
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Understanding the Impacts of Ammonia Fiber Expansion (AFEX™) Pretreatment and Densification on Densified Products Quality and the Bioproducts Yield Through Enzymatic Hydrolysis and Fast Pyrolysis
<p>Lignocellulosic biomass poses significant challenges during handling, transportation, and storage due to its low bulk density. Densification involves conversion of the low bulk density biomass into a highly compacted product which helps in improving the handling, transporting, and storage …