CAJ | 학술논문

在测试分析中国27个省、直辖市和自治区的305个煤样中溴含量的基础上,从煤的不同成煤年代、不同变质程度以及不同聚煤区等方面分析和考查中国煤中溴的分布状况。结果表明,中国煤中溴的含量为0.12~69.66μg/ g,因其对数值呈正态分布,故可用其几何平均值(7.04μg/ g)表征中国煤中溴的含量,该值低于大多数其他国家煤中溴的平均含量,和日本煤中溴的平均值(7.10μg/ g)较为接近。按煤中溴的平均值,中国13个省市小于5μg/ g；9个省为5~15μg/ g；5个省市高于15μg/ g。根据煤的变质程度,中国煤中溴含量按照烟煤、无烟煤、褐煤、次烟煤顺序依次下降；根据成煤地质年代,按早石炭纪、新近纪、晚石炭纪、早二叠纪、中侏罗纪、晚三叠纪、早侏罗纪、晚侏罗纪、古近纪、中石炭纪依次下降；根据聚煤区,按西北、华北、华南、滇藏和东北聚煤区依次下降。中国煤中溴的分布受多种因素的影响,任何单一因素和其没有密切的相关性。
재측시분석중국27개성、직할시화자치구적305개매양중추함량적기출상,종매적불동성매년대、불동변질정도이급불동취매구등방면분석화고사중국매중추적분포상황。결과표명,중국매중추적함량위0.12~69.66μg/ g,인기대수치정정태분포,고가용기궤하평균치(7.04μg/ g)표정중국매중추적함량,해치저우대다수기타국가매중추적평균함량,화일본매중추적평균치(7.10μg/ g)교위접근。안매중추적평균치,중국13개성시소우5μg/ g；9개성위5~15μg/ g；5개성시고우15μg/ g。근거매적변질정도,중국매중추함량안조연매、무연매、갈매、차연매순서의차하강；근거성매지질년대,안조석탄기、신근기、만석탄기、조이첩기、중주라기、만삼첩기、조주라기、만주라기、고근기、중석탄기의차하강；근거취매구,안서북、화북、화남、전장화동북취매구의차하강。중국매중추적분포수다충인소적영향,임하단일인소화기몰유밀절적상관성。
The bromine content of 305 coal samples from 27 provinces, municipalities and autonomous regionsof China were tested , then the distribution of bromine with different geological ages, coal ranks, coal-cumulating areas was analyzed. The results show that the coals with moderate and low bromine content are predominant in China. The bromine content ranges from 0. 12 to 69. 66 μg / g, and it follows a logarithm normal distribution.Thus the geometric mean , 7. 04 μg / g, is regarded as the average bromine content in Chinese coals. This is less than that in many countries and close to the average bromine content (7. 10 μg / g) in Japanese coals. In Chinesecoals , the average bromine content is less than 5 μg / g in 13 districts, 5 ~ 15 μg / g in 9 areas, and more than 15 μg / g in 5 regions. Based on coal rank, bromine content decreases gradually from bituminous coal,anthracite , lignite to subbituminous coal. As for coal-forming period, bromine content decreases from Early carboniferous through Late Permian, Late Carboniferous, Early Permian, Middle Jurassic, Late Triassic, EarlyJurassic , Late Jurassic, Tertiary to Middle Carboniferous. According to coal-cumulating areas, bromine content decreases from northwestern China, northern China, southern China, Yunnan and Tibet to northeastern China.But all of them have no notable effect on the bromine content in Chinese coal.