汾西矿区10号煤层硫分布特征
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摘要
采用工业分析和形态硫分析的方法,定量研究了汾西矿区10号煤层的43个高有机硫煤样。结果表明,受潟湖泥炭沼泽沉积环境和海侵转换面影响,全硫在平面上以中高-高硫煤为主,并以位于汾西盆状复向斜轴部的河东井田为中心,呈环带状向外递减,推测与向斜受白壁关-偏店、汾河、孝义三条正断层控制,造成深水还原环境有关。煤层海相顶板或近距离上覆层在沉积过程中带入丰富的海水硫酸盐,全硫含量高但有机硫占比低,下渗时被厌氧细菌还原成的S0易与有机质结合生成有机硫,但受下渗深度限制,垂向上有机硫占比呈现往底部先升后降的规律。
By the means of proximate analysis and determination of sulfur forms, 43 high organic sulfur coal samples from No.10 coal seam in the Fenxi mining area have been quantitatively analyzed. Due to the influence from lagoon peat bog sedimentary environment and the transgression transformation surfaces, coal categories according to the total sulfur content have mainly med-high to high sulfur coals and present annular zones descending distribution by taking the Hedong minefield in the Fenxi synclinal axis as a center on plane, which also controlled by three normal faults. It is speculated that the causation is related to deep water reducing environment.During the sedimentary process of marine facies coal roof or near by overlying strata had brought into abundant sea water sulfate. Although the total sulfur content is high, yet the proportion of organic sulfur content is low. In the process of seawater downward infiltration, the sulfates can be reduced into S0 by anaerobic bacteria which combined with organic matter to generate organic sulfur easily. Restricted by depth of infiltration, organic sulfur increases first and then decreases later vertically.
By the means of proximate analysis and determination of sulfur forms, 43 high organic sulfur coal samples from No.10 coal seam in the Fenxi mining area have been quantitatively analyzed. Due to the influence from lagoon peat bog sedimentary environment and the transgression transformation surfaces, coal categories according to the total sulfur content have mainly med-high to high sulfur coals and present annular zones descending distribution by taking the Hedong minefield in the Fenxi synclinal axis as a center on plane, which also controlled by three normal faults. It is speculated that the causation is related to deep water reducing environment.During the sedimentary process of marine facies coal roof or near by overlying strata had brought into abundant sea water sulfate. Although the total sulfur content is high, yet the proportion of organic sulfur content is low. In the process of seawater downward infiltration, the sulfates can be reduced into S0 by anaerobic bacteria which combined with organic matter to generate organic sulfur easily. Restricted by depth of infiltration, organic sulfur increases first and then decreases later vertically.
引文
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[3]胡振琪,马保国,张明亮,等.高效硫酸盐还原菌对煤矸石硫污染的修复作用[J].煤炭学报,2009,34(3):400-404.
[4]陈鹏.中国煤中硫的赋存特征及脱硫[J].煤炭转化,1994,17(2):1-9.
[5]么秋香,杜美利,杨喜圆.甲烷和氢气气氛下高有机硫煤的热解脱硫研究[J].煤炭工程.2013(5):105-108.
[6]唐贵云.中国洁净煤技术与大气环境保护[J].煤炭技术,2010,29(9):11-12.
[7]孟红芳.汾西矿业集团建设精煤配煤系统的探讨[J].煤炭加工与综合利用,2004,(6):40-42.
[8]赵国爱.汾西矿区炼焦煤煤质特征及炼焦性能指标研究[J].科技创新与应用,2013,(35):65.
[9]全小盾,孙传庆.煤化学与煤分析[M].北京:中国质检出版社,2012:151-152.
[10]唐跃刚,张会勇,彭苏萍,等.中国煤中有机硫赋存状态、地质成因的研究[J].山东科技大学学报(自然科学版),2002,(4):1-4.
[11]李梅,杨俊和,张启锋,等.用XPS研究新西兰高硫煤热解过程中氮硫官能团的转变规律[J].燃料化学学报,2013,41(11):1287-1293.
[12]韩玥.不同脱硫剂脱除煤中硫的研究[J].2010,33(3):56-58.
[13]于小磊.华北石炭纪高有机硫煤煤岩煤质特征研究[D].北京:中国矿业大学(北京),2013.
[14]唐跃刚,程爱国,王海生,等.山西省太原组和山西组煤质特征分析[J].煤炭科学技术,2013,41(7):10-15.
[15]汤达祯,杨起,周春光,等.华北晚古生代成煤沼泽微环境与煤中硫的成因关系研究[J].中国科学(D辑:地球科学),2000,(6):584-591.
[16]张庆辉,曹爱国,屈晓荣,等.山西省煤炭资源潜力评价报告[M].北京:煤炭工业出版社,2011:154.