High quality of Jurassic Coals in the Southern and Eastern Junggar Coalfields, Xinjiang, NW China: Geochemical and mineralogical characteristics
High quality of Jurassic Coals in the Southern and Eastern Junggar Coalfields, Xinjiang, NW China: Geochemical and mineralogical characteristics
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中国西北部新疆准噶尔煤田南部和东部侏罗系煤的高品质：地球化学和矿物学特征
DOI：
10.1016/j.coal.2012.05.003
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发表时间：
2012-09
影响因子：
5.6
通讯作者：
Lei, Guoming
中科院分区：
文献类型：
--
作者：
Li, Jing;Zhuang, Xinguo;Querol, Xavier;Font, Oriol;Moreno, Natalia;Zhou, Jibin;Lei, Guoming
准噶尔盆地是新疆最大的含煤盆地之一，煤炭储量巨大。根据勘探资料，中侏罗统西山窑组可采煤层在全盆地范围内发育一至数十层，最大累积煤厚超过100米。从准噶尔煤田南部和东部的6个勘探钻孔中采集了96个散煤样品，对准噶尔煤田的煤质进行了研究。采用粉末X射线衍射（XRD）和电感耦合等离子体原子发射光谱（ICP-AES）、电感耦合等离子体质谱（ICP-MS）对煤的矿物学特征和地球化学特征进行了研究。东、南准噶尔烟煤均具有低灰分、低硫、低矿物质含量的特点。此外，东准噶尔和南准噶尔煤中的大多数主量和微量元素的浓度相对于其他中国和世界各地的煤，除了Sr和Ba相对较低。结果表明，K、Li、Ti、Sc、V、Cr、Ga、Rb、Zr、Pb和稀土元素（REEs）具有铝硅酸盐亲和性。含钙和含铁碳酸盐的亲和力推导为Ca，Mg，Fe，Mn，Sr和Ba。硫（Fe）、Zn、Pb、Cu和As在某些煤中显示出部分硫化物亲和力。从P、Sr和Ba的相对高的相关性推断出磷灰石和/或角闪石亲合力。准噶尔盆地极高的煤质是由于泥炭堆积过程中，在非常稳定的浅水湖泊沉积相中，碎屑供应非常少。泥炭沼泽堆积速率、地下水位和氧化还原条件的微小差异是不同煤田煤层合并和分裂的原因，也是矿物、硫、灰分和微量元素含量差异的原因。综上所述，东准噶尔和南准噶尔煤炭储量巨大，具有高品质的特点，这与新疆省煤粉燃烧发电站大量耗煤期间的燃煤副产物（CCP）和潜在的气态污染物/颗粒物排放具有重要的环境相关性。准格尔煤的高煤质预期将产生可再用于各种用途的CCP，且对环境的威胁较低。
The Junggar coal basin, with enormous coal reserves, is one of the largest coal basins in Xinjiang Province, Northwest China. According to the exploration data, there is one to dozens of workable coal seams developed in the Xishanyao Formation of Middle Jurassic across the whole basin, with the maximum accumulated coal thickness of over 100m. Ninety-six bulk coal samples from six exploration boreholes in the Southern and Eastern Junggar Coalfields were collected to investigate the coal qualities of the Junggar coals. The mineralogical characteristics of the studied coals were determined by Powder X-ray diffraction (XRD) and geochemical analyses are performed by means of inductively-coupled plasma atomic-emission spectrometry (ICP-AES) and inductively-coupled plasma mass spectrometry (ICP-MS). The Eastern and Southern Junggar bituminous coals are all characterized by low ash yields, low S contents, and low mineral contents. Furthermore, the concentrations of most major and trace elements in both the Eastern and Southern Junggar coals are relatively low with respect to other Chinese and worldwide coals, with the exceptions of Sr and Ba. The results show that elements including K, Li, Ti, Sc, V, Cr, Ga, Rb, Zr, Pb, and rare earth elements (REEs), have aluminosilicate affinities. Ca-bearing and Fe-bearing carbonate affinities are deduced for Ca, Mg, Fe, Mn, Sr, and Ba. Sulfur (Fe), Zn, Pb, Cu, and As show a partial sulfide affinity in some coals. An apatite and/or crandallite affinity is deduced from relatively high correlation of P, Sr, and Ba. The very high coal quality of Junggar coals is attributed to very low detrital supply in very stable shallow-lake sedimentary facies during peat accumulation. Slight differences of peat bog accumulation rate, water table, and oxidizing-reducing condition account for the merging and splitting of coal seams in different coal exploration areas and the slight differences of mineral, S, ash, and trace element contents. In summary, the Eastern and Southern Junggar coals with very enormous reserves are characterized by high quality, which is significantly and environmentally relevant to coal combustion by-products (CCPs) and potential emissions of gaseous pollutants/particulate matter during the large coal consumption in pulverized coal combustion power stations in Xinjiang Province. The high coal quality of the Junggar coals is expected to generate CCPs that can be reused for various purposes with low environmental threat.
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影响因子：
5.6
作者：
Ketris, M. P.;Yudovich, Ya. E.
通讯作者：
Yudovich, Ya. E.
DOI：
10.1016/c2013-0-00949-8
发表时间：
1990-07
期刊：
The Astrophysical Journal Supplement Series
影响因子：
--
作者：
D. J. Swaine
通讯作者：
D. J. Swaine
新疆准噶尔盆地准东大煤田煤炭地球化学与矿物学
影响因子：
5.6
作者：
Zhou, Jibin;Zhuang, Xinguo;Li, Jinghong
通讯作者：
Li, Jinghong
中国两种高Ge煤中的微量元素亲和力
影响因子：
7.4
作者：
Li, Jing;Zhuang, Xinguo;Querol, Xavier
通讯作者：
Querol, Xavier
安徽淮南煤田诸暨煤矿煤岩侵入岩及稀土地球化学特征
影响因子：
5.6
作者：
Liu, Guijian;Sun, Ruoyu;Chou, Chen-Lin;Zheng, Liugen
通讯作者：
Zheng, Liugen