WEBHis areas of research include Computational Fluid Dynamics applied to reacting flows, laminar flames, fire modelling, evaporation and combustion of liquid fuel droplets, flame spread and liquid fuel pool combustion, gasifiion and combustion of coal and biomass. Prof. Raghavan has graduated 10 PhD students and 18 MS students till July 2020.
WEBWith underground coal gasifiion (UCG), the actual process takes place underground, generally below 1,200 feet. The underground setting provides both the feedstock source as well as pressures comparable to that in an aboveground gasifier. With most UCG facilities, two wells are drilled on either side of an underground coal seam.
WEBMar 25, 2020 · Biomass gasifiion has been the focus of research to estimate efficiency and performance of the gasifiion process using various types of biomass: sugarcane residue, rice hulls, pine sawdust, almond shells, almond, food waste, and woody biomass. Black liquor gasifiion has the potential to achieve higher overall energy efficiency .
WEBApr 3, 2018 · An investigation was carried out aimed at checking the feasibility of the novel bioelectroFenton process with FeVO 4 /CF hode on advanced treatment of coal gasifiion wastewater. The maximum power density arrived mW/m 3 in MFCFeVO 4 /CF system, which was corresponding to a current density of A/m 3 at the .
WEBJan 1, 2013 · Gasifiion of coal is a process whereby coal is converted to a syngas, which is predominately a mixture of carbon monoxide and hydrogen. As shown schematically in Fig., syngas is a precursor to an extensive range of energy and chemical products: ...
WEBAug 1, 1987 · Introduction Gascleaning systems are incorporated in the process design of coalgasifiion facili ties for the purpose of converting the raw gas exiting the gasifiion reactor into a gas which meets enduse specifiions. Thus, the design and structure of the gascleaning system (Fig. ) depend on both the characteristics of .
WEBCoal Gasifiion. Nicola J. Wagner, ... van Dyk, in Applied Coal Petrology, 2008 Publisher Summary. This chapter deals with coal gasifiion, which is a process that converts carbonaceous materials, such as coal, petroleum, petroleum coke, or biomass, into carbon monoxide and gasifiion as a powergeneration .
WEBCourse layout. Week 1 Introduction, characterization of wastes. Week 2 Energy production form wastes through incineration, energy production through gasifiion of wastes. Week 3 Energy production through pyrolysis and gasifiion of wastes, syngas utilization. Week 4 Densifiion of solids, efficiency improvement of power plant and ...
WEBCoal gasifiion wastewater (CGW) has attracted considerable industrial attention because of its high toxicity and poor biodegradability. Ozonation is a promising process for CGW treatment. In this study, the effects of ozone concentration, pH, and ozonation time on CGW treatment were investigated. .
WEBMar 25, 2020 · This chapter presents an assessment of the technologies that have evolved for the gasifiion of coal with a description of the current state of the art of the various technologies. Various types of coal are available such as lignite, subbituminous coal, bituminous coal, and anthracite. The gasifiion process involves two distinct stages ...
WEBSep 1, 2006 · The purposes of this study are to develop an evaluation technique for design and performance optimization of coal gasifiers using a numerical simulation technique, and to confirm the validity of the model. The coal gasifiion model suggested in this paper is composed of a pyrolysis model, char gasifiion model, and gas phase reaction model.
WEBApr 1, 2021 · To determine the potential impact of the Underground Coal Gasifiion process on groundwaters, the authors conducted studies of parameters which are characteristic for mine water and for industrial wastewater generated in the UCG process, taking into account the legal requirements for discharging sewage to the environment.
WEBThe gasifiion of lowvalue or waste materials is an attractive option. Even otherwise problematic materials can be gasified together with the main feedstock. Gasifiion technology offers environmentfriendly, efficient solutions for these appliions. In power generation, for example, gasifiion can achieve high electrical efficiencies ...
WEBMar 12, 2024 · The wastewater from underground coal gasifiion (UCG) process has extremely complex composition and high concentrations of toxic and refractory compounds including phenolics, aliphatic and aromatic hydrocarbons, ammonia, cyanides, hazardous metals and metalloids. So, the development of biological processes for treating UCG .
WEBWood gasifiion in a fluidized bed reactor is regards as a promising technique to efficiently exploit the energy from biomass, which has attracted great attention. To further understand complex fluid mechanics and thermal behaviors of wood during the gasifiion process, a multiphase reactive model is presented, and a computational fluid dynamics .
WEBCourse layout. Week 1:Introduction: World energy scenario, consumption pattern, fossil fuel depletion and environmental issues. Week 2: Biomass: Availability and abundance, photosynthesis, composition and energy potential, biomass production and selection, waste biomass (municipal, industrial, agricultural and forestry) availability ...
WEBThe course deals with the production of energy from different types of wastes through thermal, biological and chemical routes. It is intended to help the young scientific professionals to keep their knowledge upgraded with the current thoughts and newer technology options along with their advances in the field of the utilization of different ...
WEBFeb 23, 2010 · In the Shell gasifiion process, coal is crushed and dried and then fed into the Shell gasifier as a dry feed. The gasifier, as shown in Figure 8, is an oxygenblown, waterwall gasifier eliminating refractory durability issues. It is good for wide variety of feed stocks, from pet coke to lowrank coals and has been run on biomass as well.
WEBJun 1, 2021 · Cogasifiion of biomass and coal is an alternative that increases the reliability of power plants while reducing CO 2 emissions [125]. Cogasifiion of biomass and coal has exhibited a synergistic effect, with many studies reporting that with higher amount of biomass the gasifiion reaction was promoted [125], [126], [127].
WEBJun 13, 2018 · This study assesses and compares the gasifiion performance of a Victorian brown coal (Loy Yang) and Pine bark in the temperature range of 1000–1400 °C with CO2 (10–40% in N2) as the ...
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