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Showing 1 to 20 of 246 for “"Gasification"”.
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Downdraft gasification of biomass
… were to investigate the parameters affecting the gasification process within downdraft gasifiers using biomass feedstocks. In addition to investigations with an open-core gasifier, a novel open-topped throated gasifier was designed and used. A sampling system was designed and installed to …
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Supercritical Water Gasification of Biomass
… of biomass, including combustion, pyrolysis and gasification. However, traditional thermochemical technologies can be only effective with dry biomass, owing to energy considerations. As a consequence, wet biomass (e.g. municipal or agro-industrial wastes), which represents the greatest part of …
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Fluidized bed gasification of biomass
… in a conceptual design of a fluidized bed gasification facility. The conceptual design was finally used to perform an economic evaluation of a proposed gasification facility. The economics of this plant (retrofit application) were favourable.
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Analysis of Biomass/Coal Co-Gasification for Integrated Gasification Combined Cycle (IGCC) Systems with Carbon Capture
<p>In recent years, Integrated Gasification Combined Cycle Technology (IGCC) has become more common in clean coal power operations with carbon capture and sequestration (CCS). Great efforts have been spent on investigating ways to improve the efficiency, reduce costs, and further reduce greenhouse …
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Steam gasification of manureby S. Ganesan
Call number: LD2668 .T4 1979 G36
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Co-gasification of coal and biomass
Gasification is thermo-chemical conversion technology in which complex organic polymers present in feedstock react with limited oxygen supplied by steam or air. The gasification reaction produces CO2 (Carbon-dioxide), H2 (Hydrogen), CO (Carbon-monoxide), CH4 (Methane) and other lower hydrocarbons. …
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Gasification of in-Forest Biomass Residues
… continuous-feed supercritical water gasification (SCWG) system. The system is operated using real-world Ponderosa Pine sawmill residues at high biomass loadings, short mean residence times (2-5 sec), and 27.7 MPa pressures. Each run with the SCWG system typically processed several 100 …
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Biomass Integrated Gasification Combined Cycles (BIGCC)
… or gas fuels. This study focuses on employing gasification technology to convert biomass waste to producer gas, which is then cleaned and fed as gaseous fuel into the gas turbine. Since the producer gases are usually low caloric values, the power plants performance under various operating …
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Supercritical water gasification of waste residues
… land fill concerns and supercritical water gasification is introduced as a method of decomposing such waste residues with high efficiencies. This study focused on supercritical water gasification of motor oil using a batch reactor operated between 750°C - 800°C. The specific goals were to …
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Mathematical Modeling of Ultra-Superheated Steam Gasification
Pure steam gasification has been of interest in hydrogen production, but with the challenge of supplying heat for endothermic reactions. Traditional solutions included either combusting feedstocks at the price of decreasing carbon conversion ratio, or using costly heating apparatus. Therefore, a …
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Gasification of biomass in a downdraft reactor
… to investigate the parameters that influence the gasification process. The gasifier is of the open-core variety and is fabricated from 7.5 cm bore quartz glass tubing. Gas cleaning is by a centrifugal contacting scrubber, with the product gas being flared. The system employs an on-line dedicated …
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Gasification of rubberwood in a downdraft gasifier
… is due to a `bubble theory' occurring at the gasification zone, and this hypothesis is explained. For stable power output, the working range of the engine was found to be 5-33.5 kWe. The thermal efficiency and diesel displacement of the engine was found to be 17-18% and 65-70% respectively. …
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Simulations and modeling of biomass gasification processes
… could ease the current reliance on fossil fuels. Gasification of biomass is a promising technology being researched by the National Renewable Energy Laboratory. An Aspen Plus® model was developed for the Thermochemical Process Development Unit (gasification unit) at the National Renewable Energy …
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The catalyzed liquefaction and gasification of coal.
Thesis (Sc. D.)--Massachusetts Institute of Technology, Dept. of Chemical Engineering, 1973.
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Multiscale CFD simulations of entrained flow gasification
… it was practical to apply CFD models. Moreover, gasification CFD models developed over the years may have lacked accuracy or have not been tested over a wide range of operating conditions, gasifier geometries and feedstock compositions. One reason behind this shortcoming is the failure to …
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Fundamental Kinetic Studies of CO2 and Steam Gasification
Gasification is the thermochemical conversion of a carbon-based fuel into a combustible product gas (syngas) using a gasifying agent, such as steam, carbon dioxide (CO2) or a combination of both. The application of this technology is limited, due to its slow reaction rate, making kinetics …
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Small-Scale Batch-Fed Biomass Gasification and Combustion
Small-scale solid biomass-fuelled cookstoves are highly important to satisfy the energy demand of nearly half the world’s population. With this as a main application, biomass provides the majority of renewable energy worldwide. However, traditional cookstoves, which emit vast amounts of emissions …
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A Steam Process for the Gasification of Coal
Made available in DSpace on 2014-12-13T19:55:33Z (GMT). No. of bitstreams: 1 8009042.pdf: 7790114 bytes, checksum: 53a010ae6a674d0858208e18768aa8a9 (MD5) Previous issue date: 1979
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