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井工煤矿煤炭生产碳排放核算及减排路径研究

Study on carbon emission accounting and emission reduction path of coal production in coal mine

  • 摘要: 在能源行业,实现碳达峰和碳中和的目标是主要任务,随着双碳策略的持续推进,行业监管模式将逐步由当前的“能源双控”转变为“碳排放双控”,减排将成为坚定不移的原则。近年来,煤炭行业深入践行绿色低碳理念,各煤炭企业已从战略层面统一对双碳目标进行布局,制定了各自的碳达峰和碳中和行动计划,全面规划了战略目标、关键任务及重大项目,从而绘制出碳达峰和碳中和的具体实施路径。选择合适的碳排放计算模型和科学的减排策略对于优化煤炭产业的碳排放管理,以及推动我国煤炭行业的绿色低碳转型具有至关重要的作用。以二氧化碳近零排放为目标,结《国合家温室气体清单指南:IPCC—2019》和煤炭企业温室气体排放核算国家标准,提出了井工煤矿全生命周期中煤炭生产各环节二氧化碳排放的具体核算方法,构建了井工煤矿煤炭生产碳排放核算模型,并以典型煤矿为工程背景,对该井工矿开采过程中的碳排放进行计算和分析。结果显示,逸散排放和运输工序是煤炭井工开采碳排放的重要环节,分别占到了总量的38.2%和18.9%;按碳排放源进行分类,电力消耗所排放的二氧化碳占48.5%,是能源领域最大排放源。在此基础上,提出了井工煤矿碳减排路径及其“零碳矿井”的实施路径。研究结果可为井工煤矿低碳发展提供理论指导。

     

    Abstract: In the energy industry, achieving the goal of carbon peak and carbon neutrality is the main task. With the continuous advancement of the dual-carbon strategy, the industry regulatory model will gradually change from the current “energy dual control” to “carbon emission dual control” and emission reduction will become a firm principle. In recent years, the coal industry has deeply practiced the concept of green and low-carbon. Coal enterprises have unified the layout of the dual-carbon target from the strategic level, formulated their own carbon peak and carbon neutralization action plan, and comprehensively planned the strategic objectives, key tasks and major projects, so as to draw the specific implementation path of carbon peak and carbon neutralization. Choosing the appropriate carbon emission calculation model and scientific emission reduction strategy plays a vital role in optimizing the carbon emission management of the coal industry and promoting the green and low-carbon transformation of China’s coal industry.Clarifying the characteristics of carbon emissions in underground coal mines is the premise and basis for achieving the goal of “double carbon” in underground coal mines. Aiming at the near-zero emission of carbon dioxide, combined with the “Guidelines for National Greenhouse Gas Inventories: IPCC-2019” and the national standards for greenhouse gas emission accounting of coal enterprises, this paper puts forward a specific accounting method for carbon dioxide emissions in all aspects of coal production in the whole life cycle of underground coal mines, and constructs a carbon emission accounting model for coal production in underground coal mines. Taking a typical coal mine as the engineering background, the carbon emissions in the mining process of the coal mine are calculated and analyzed. The results show that fugitive emissions and in-plant transportation are important parts of carbon emissions from coal mining, accounting for 38.2% and 18.9% of the total, respectively. According to the classification of carbon emission sources, the consumption of electricity accounts for 48.5% of carbon dioxide emissions, the largest proportion. On this basis, the carbon emission reduction path of underground coal mine and the implementation path of “zero carbon mine” are put forward. The research results can provide theoretical guidance for the low-carbon development of underground coal mines.

     

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