Gasification Systems Articles
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Hydrogen-rich synthesis gas production from waste wood via gasification and reforming technology for fuel cell application
The purpose of this study was to establish a fuel process for an advanced power generation system in which hydrogen-rich synthesis gas, as the fuel for the molten carbonate fuel cell (MCFC), can be extracted from biomass via gasification and reforming technologies. Experiments on waste wood gasification were performed using a bench-scale gasification system. The main factors influencing hydrogen ...
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The Effect of Risk Characteristics on the Willingness to Pay for Mortality Risk Reductions from Electric Power Generation
The objective of this study is to estimate willingness to pay (WTP) for the reduction of mortality risks caused by fossil fuel (natural gas, coal and oil) versus nuclear electric power generation systems and to examine the influence of risk characteristics involved with electric power generation on WTP. A choice experiment was conducted to achieve these objectives. The attributes for nuclear ...
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Thermodynamic performance simulation of a coal gasification and SOFC based combined cogeneration plant by energy and exergy analyses
This paper presents a thermodynamic model of a combined cogeneration plant that employs a coal gasifier, a gas cooler and a solid oxide fuel cell (SOFC) upstream of the gas turbine and a downstream HRSG to generate process steam at low pressure. Simulated performance of the plant with respect to variations in some design and operating parameters has been reported. While energy analysis indicates ...
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Present status and future prospect of clean coal technology in China
Coal consumption accounts for about two thirds of the primary energy consumption in China. High economic growth has brought about a rapid increase of coal consumption. Low-efficiency combustion of a large amount of coal caused coal-smoke related air pollution. The Chinese government put forward plans to develop clean coal technology in the early 1990s, and has listed it as one of the emphases for ...
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Plasma resource recovery technology –converting waste to energy and valuable products
Abstract Plasma Resource Recovery (PRR) is a revolutionary technology that can treat virtually any type of waste by combining gasification with vitrification. Vitrification produces inert slag that can be used as a construction material. Gasification produces a fuel gas containing carbon monoxide (CO) and hydrogen (H2), used for cogeneration of electricity and steam. The plasma fired eductor ...
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Performance of externally fired combined cycle (EFCC)
The externally fired combined cycle (EFCC) which utilises coal as the primary fuel through a gas turbine cycle is a clean coal technology. Natural gas is used as the supplementary fuel, but the ultimate goal of the EFCC concept is a coal only option. In this study, the performance of the EFCC plant is evaluated based on the first and the second laws of thermodynamics, considering various levels ...
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Analysis of availability and accessibility of hydrogen production: An approach to a sustainable energy system using methane hydrate resources
It is considered that use of hydrogen as an energy source may contribute to environmental improvement and provide an alternative energy system. Moreover, it is anticipated that hydrogen will be in great demand in the near future for use in such vehicles as fuel cell-based cars. Research and development of a number of advanced methods of hydrogen production (OTEC, water photolysis using a ...
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Cleaning Up Gasification Syngas
Documento sin título Introduction By definition, gasification is the art of changing a non-gaseous substance, such as a liquid or a solid, into a gas. By this definition, processes such as combustion, anaerobic digestion and pyrolysis would be classified as gasification. However, in today’s world, gasification is defined as any process, which produces a “synthesis gas” or a ...
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Research on gasification process of loose biomass material with oxygen-enriched air in fluidised bed gasifier
Fluidised bed gasification technology with oxygen-enriched air suitable for gasifying loose biomass materials was developed. Gasification experiments with different biomass materials such as rice straw, rice hull, wheat straw, sawdust and municipal wastes, were carried out. The tests showed that biomass materials can be gasified continuously at a temperature between 600 and 750°C. The heating ...
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Sources and technology for hydrogen production: a review
A comprehensive review of various processes and possible sources of hydrogen production are discussed in this paper. The various process for hydrogen production reviewed includes industrial process i.e. steam reforming, thermal cracking, partial oxidation of fossil fuels, coal gasification, electrolysis, thermochemical etc. and new emerging processes like photolysis, photo-voltaic electrolysis, ...
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Thermophysical characteristics of the biomass tar from a crop stalk gasification system
Presently, the biomass gasification and centralised gas-supply system fed by crop stalks is still at the stage of development and research in China. The purifier of the system has some problems such as huge device, low purifying efficiency, and poor disposal of tar causing secondary pollution. For this reason, the distillate range, calorific value, ignition temperature, flash point and viscosity ...
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Europe’s Largest Mine Gas Plant
GE Jenbacher has supplied 14 cogeneration systems to Europe’s largest coal mine gas plant, Fenne, which is owned by SaarEnergie and located in the district of Fenne near Saarbrücken, Germany, GE Energy announced at Hannover Messe 2004. The JMS 620 GS cogeneration systems produce more than 40 megawatts of electricity and nearly 41 megawatts of thermal energy. This coal mine gas plant ...
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Technical and economic studies on the optimisation of prospective coal-fired power stations
The paper considers problems of choosing rational parameters of thermal power plants on fossil fuel. A technique for comparison of the energy and economic efficiency of prospective coal-fired power plants is described. The optimisation results of parameters of combined-cycle plants with coal gasification at low and high-temperature levels and steam turbine plants on supercritical steam parameters ...
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The influence of climate change considerations on energy policy: the case of Russia
To those working on climate change, it is obvious that energy policy should be influenced by climate change considerations. The question that this paper seeks to answer is, to what extent do they influence policy and what contribution can a careful analysis of the costs and benefits of climate change options have on the formulation of that policy? We seek to understand this by looking in some ...
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Commercialisation options for biomass energy technologies in ESCAP countries
Biomass provides the basic energy requirements for cooking and heating in rural households and for processes in a variety of traditional industries in developing countries. In general, biomass energy uses in such cases are characterised by low efficiency. Potentially, efficiency improvements of existing energy systems could increase the energy supply from biomass substantially. Also, wide ranges ...
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The recent development of biomass energy in India: an overview
This paper presents the current status and use of Biomass Technologies (BTs) in India. Different technology routes such as gasification, combustion and cogeneration are being actively developed to promote conversion of biomass materials such as agricultural, forestry and agro-industrial residues into electric power. The promotion of scientifically designed models of wood/biomass fired efficient ...
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Energy from biomass and waste – case studies in China
With its vast territory and abundant biomass resources, China appears to have suitable conditions to develop biomass energy. It has long been recognised that it is important to develop advanced technologies for conversion of biomass into clean and convenient fuels in order to raise the efficiency of biomass energy utilisation and alleviate air pollution. Through past efforts some progress in ...
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New energy infrastructure development in the Asia-Pacific region
The paper analyses the current status and future development of energy infrastructure in the Asia-Pacific region, which is considered as a precondition for regional economic growth. In particular, emphasis is given to natural gas, oil, coal and electricity. The paper includes a description of opportunities for regional energy trade and cooperation, which could provide solutions to energy security ...
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Gas infrastructures and the environment in Eurasia in a dynamics-as-usual scenario
This paper examines the implications of the new dynamics-as-usual IPCC B2 scenario for the viability of international gas transmission lines and the environment in Eurasia. In doing so, it analyses the effects of increasing the number of pipelines, reducing gas extraction costs and stabilising greenhouse gas concentrations. In the B2 scenario, interregional gas transport by pipeline would ...
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Thermodynamics of a desalination system at nuclear power stations
Nuclear power engineering is developing steadily in industrial countries. This is caused by features of using nuclear fuel and high environmental safety of nuclear power stations. At the same time, the thermodynamic efficiency of nuclear power stations is lower than indices of thermal power stations operating on gas, coal or oil fuel. This efficiency does not usually exceed 30–35%. Hence more ...
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