J.G. Speight, in Gasification for Synthetic Fuel Production, 2015. 12.5.1 Synthesis gas. As with many gasification processes, waste gasification is intended o produce a gas that can be used as fuel gas or used for hydrocarbons or chemicals production. In either case, the gas is synthesis gas, mixtures of carbon monoxide and hydrogen, and the yield and composition of the gas and related.
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Abstract The aim of this work was to study the catalytic cleaning of gasification gas from tars and ammonia. In addition, factors influencing catalytic activity in industrial applications were studied, as well as the effects of different operation conditions and limits.
The model encompasses the kinetics of biomass pyrolysis, homogeneous reactions and heterogeneous char oxidation and gasification reactions, coupled with transient transport equations. Subsequently, this model is implemented in an in-house code and a comprehensive numerical study on pyrolysis and combustion of single biomass particles is conducted.
Doctoral School in Environmental Engineering Supercritical Water Gasification of Biomass Daniele Castello 2013.
The background and significance of bio-oil research, the characteristics of bio-oil suitable for gasification, bio-oil gasification theory, types and configurations of bio-oil gasifiers, the quality of the product gas, parameter effects, and economic evaluation of bio-oil gasification are discussed, and finally a summary and future outlook are also delivered.
However, no biomass gasification phd thesis study has been recorded on gasification of oil-palm wastes. In order to investigate the performance and gasification characteristics of this feedstock, a downdraft gasifier of capacity 50 kW, designed and manufactured for the purpose of this study, is used. In addition, study of pyrolysis characteristics is carried out using fixed bed activation.
In this thesis, the pyrolysis behaviors of single pelletized recovered fuel were tested. A detailed comparison of the pyrolysis behaviors of typical recovered solid waste and biomass particles was conducted. A swelling phenomenon with a swelling ratio of approximately 1.6 was observed on the surface of pelletized recovered fuels.
The total energy in the gases from the gasification zone showed a thermal efficiency of 80%. Major components were H2O, CO2, CO with hydrocarbons benzene, acetylene, ethylene and naphthalene. Please use the 'Request a copy' link (s) above to request this thesis. This will be sent directly to someone who may authorise access.
Increasing interest is focusing on plasma-assisted gasification applied to the treatment of municipal solid waste (MSW), especially as it may be a new way to increase Waste-to-Energy (WTE) worldwide. The aim of this thesis was to investigate different such processes under development and their technical and economic viability.
Abstract Factors affecting the release and reactions of fuel-bound nitrogen in air gasification conditions were studied in order to be able to minimise their production during gasification. Another objective was to find new means to remove nitrogenous compounds from hot gasification gas.
Gasification converts MSW to a usable synthesis gas, or syngas. It is the production of this syngas which makes gasification so different from incineration. In the gasification process, the MSW is not a fuel, but a feedstock for a high temperature chemical conversion process. Instead of producing just heat and electricity, as is done in a waste-to-energy plant using incineration, the syngas.
Biomass gasification is a widely used thermochemical process for obtaining products with more value and potential applications than the raw material itself. Cutting-edge, innovative and economical gasification techniques with high efficiencies are a prerequisite for the development of this technology.
The purpose of this study is to characterize the heat transfer and chemical processes that occur within the reactor of an indirectly-heated biomass gasification process. As opposed to conventional gasification processes, in which combustion and pyrolysis reactions occur simultaneously within the reactor, combustion and pyrolysis reactions occur sequentially in a cyclic fashion. The key to this.
The development of Underground Coal Gasification (UCG) modelling has been carried out for many years and this study is an attempt to improve the mechanisms of thermochemical processes in an existing model. The understanding of the thermochemical behaviour of coal gasification reactions is important because it influences gas production simultaneously with a coal mass reduction.Gasification converts MSW to a usable synthesis gas, or syngas. It is the production of this syngas which makes gasification so different from incineration. In the gasification process, the MSW is not a fuel, but a feedstock for a high temperature chemical conversion process. In the gasifier, the MSW reacts with little or no oxygen, breaking.Co-gasification of municipal solid waste and material recovery in a large-scale gasification and melting system Nobuhiro Tanigaki, Kazutaka Manako, Morihiro Osada Pages 667-675.