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Resources and economic analyses of underground coal gasification in India

机译：印度地下煤气化的资源和经济分析

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India has 298.914 billion tonnes of coal resources and 43.215 billion tonnes of lignite resources. Underground Coal Gasification (UCG) can be used to extract the deep and un-minable coal and lignite resources in India. Total 120.666 billion tonnes coal resources and 20.98 billion tonnes lignite resources are confined to the depth greater than 300 m which would be the potential resources for UCG. A simple approach has been developed for economic evaluation of UCG project. The UCG module can be considered to consist of two vertical wells. An equilibrium model based on elemental composition of coal is used to predict the gas quality and yield. Based on a single UCG module dimensions, syngas production and power generation per module are calculated. The capital and operating costs are estimated for 100 MW UCG power plant with the multiple UCG modules. Three Indian coal samples-one sub-bituminous coal (C) and two lignites (A and B) are used to estimate the capital and operating costs of 100 MW UCG power plant. The capital costs are in the range of $210-246millions. The estimated costs of clean syngas production per GJ are $1.34, $0.90 and $1.73 for sample A, B and C respectively. The estimated electricity generation costs per MWh using UCG syngas are $24.27, $19.10 and $28.11 for sample A, B and C respectively. (C) 2014 Elsevier Ltd. All rights reserved.
机译：印度拥有2989.14亿吨的煤炭资源和432.15亿吨的褐煤资源。地下煤气化（UCG）可用于在印度开采深层和不可开采的煤炭和褐煤资源。总计1206.66亿吨的煤炭资源和209.8亿吨的褐煤资源被限制在300m以上的深度，这将成为UCG的潜在资源。已经开发出一种简单的方法来对UCG项目进行经济评估。 UCG模块可视为由两个垂直井组成。使用基于煤元素组成的平衡模型来预测瓦斯质量和产量。基于单个UCG模块尺寸，计算每个模块的合成气产量和发电量。带有多个UCG模块的100 MW UCG电厂的资本和运营成本估计为。三个印度煤炭样​​本（一个亚烟煤（C）和两个褐煤（A和B））用于估算100 MW UCG电厂的资本和运营成本。资本成本在210-246百万美元之间。样品A，B和C的每GJ清洁合成气生产成本估计分别为1.34美元，0.90美元和1.73美元。使用UCG合成气估算的每兆瓦时发电成本分别为A，B和C样品分别为24.27美元，19.10美元和28.11美元。 （C）2014 Elsevier Ltd.保留所有权利。

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