摘要
中国是世界上最大的能源消费国和碳排放国,作为中国工业中仅次于水泥生产的第二大工业过程碳排放源,石灰工业的碳排放量鲜见报道。本研究估算了中国石灰工业的过程排放量(即工业生产过程中直接产生的CO_2排放),化石燃料燃烧排放量(即由燃料燃烧直接产生的CO_2排放)以及间接排放量(由电力消耗产生的CO_2排放)。估算结果表明:石灰的工业过程CO_2排放量增加迅速(从2004年的0.979×108t到2015年的1.649×108t)。到2015年,中国石灰工业的CO_2排放量为2.361×108t,其中,燃料燃烧的CO_2排放量是0.658×108t,环保先进窑的排放量占46.05%;间接排放量为0.053 5×108t,环保先进窑的排放量占21.31%。
China is the largest energy consumer and carbon emitter in the world. The academic circles have paid attention to its energy consumption and carbon emissions in the industrial process. In the industrial process,the emission of cement industry is a focus. However,carbon emissions from the lime industry are rarely reported as the carbon source of the second major industrial processes after cement production. This study estimates the process emissions of China's calcareous industry(CO_2 emissions produced directly from industrial production),emission of fossil fuels(CO_2 emissions produced directly from fuel combustion) and indirect emissions(CO_2 emissions generated by electricity consumption). The estimation results showed that the CO_2 emissions from the industrial process of lime increased rapidly(from 0. 979 × 108 t in 2004 to 1. 649 × 108 t in 2015). In 2015,the CO_2 emissions of China's lime industry was 2. 361 × 108 t,of which the CO_2 emissions of fuel combustion was 0. 658 × 108 t,the emission of the advanced kiln was 46. 05%,the indirect emission was 0. 053 5 × 108 t,and the emission of the advanced kiln was 21. 31%.
引文
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