利用全生命周期评价方法对煤炭开发利用全产业链典型路线碳排放进行分析,对比得出不同煤炭利用方式全生命周期的碳排放。根据煤炭消费结构及排放系数,计算得到煤炭生产和消费的碳流通情况,开采洗选环节排放二氧化碳7.4亿t,电力行业37.75亿t,钢铁行业12.50亿t,建材行业10.65亿t,化工行业5.57亿t,燃煤工业锅炉、民用等分散燃烧排放13.25亿t。提出通过提高煤层气抽采利用率、能源利用效率以及采用新技术等途径减少煤炭全生命周期碳排放。 Using the method of full life cycle assessment to analyze the carbon emission from the typical route of coal industrial development and utilization, the carbon emissions of different coal utilization patterns are compared. According to the coal consumption structure and emission coefficient, the carbon circulation of coal production and consumption was calculated. The discharge of carbon dioxide in the mining and washing process was 740 million tons, 3.775 billion tons in the power industry, 1.25 billion tons in the steel industry, 1.065 billion tons in the building materials industry, 5.57 tons in the chemical industry Billion tons, coal-fired industrial boilers, civil and other dispersed combustion emissions of 1.255 billion t. Proposed by reducing coal bed methane utilization, energy efficiency and the use of new technologies to reduce carbon emissions throughout the life cycle of coal.