Distribution and mode of occurrence of As, Hg and Se and Sulfur in coal Seam 3 of the Shanxi Formation,Yanzhou Coalfield, China

Liu, Guijian; Zheng, Lu; Zhang, Ying; Qi, Cuicui; Chen, Yiwei; Peng, Zicheng

doi:10.1016/j.coal.2006.12.005

Cited by 75 publications

(39 citation statements)

References 77 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The values are much higher than the American data published, e.g., by [17] or [12]. Liu et al [10] also reported that the range of mercury content in the coal samples is quite wide, roughly 0.16−1.76 ppm. Those data, however, are not complete since they were obtained from the coals of the Yanzhou basin in Shandong Province only.…”

Section: +contrasting

confidence: 49%

“…The average mercury content in Chinese coals is roughly 500 μg/g as reported by Liu et al [10]. The values are much higher than the American data published, e.g., by [17] or [12].…”

Section: +contrasting

confidence: 48%

“…The correlation was also strongly linked to the type of sulfur and the mercury content in coal samples decreased in the following order: sulfur pyrites sulfur associated with sulphates total sulfur content organic sulfur [11,17]. An interesting conclusion was the information that some low sulfur coals contain quite high concentrations of mercury, probably due to magma-related intrusions [10,17]. For those coals signifi cant amount of mercury was found to be associated with organic compounds.…”

Section: +mentioning

confidence: 78%

See 2 more Smart Citations

The Investigation of Mercury Contents in Polish Coal Samples

Wichliński¹,

Kobyłecki²,

Bis³

2013

Archives of Environmental Protection

View full text Add to dashboard Cite

This paper presents the results of the investigation associated with the determination of mercury content in Polish hard coal and lignite samples. Those coals are major fuels used for electricity generation in Poland. The results indicated that the average content of mercury in the coal samples was roughly about 100 ng/g. Apart from the determination of the mercury contents a detailed ultimate and proximate analysis of the coal samples was also carried out. The relationships between the mercury content and ash, as well as fi xed carbon, volatile matter, sulfur, and high heating value of the coal samples were also established. Furthermore, the effect of coal enrichment was also investigated, and it was found that the enrichment process enabled the removal of up to 75% of the coal mercury from the samples.

show abstract

Section: +contrasting

confidence: 49%

“…The average mercury content in Chinese coals is roughly 500 μg/g as reported by Liu et al [10]. The values are much higher than the American data published, e.g., by [17] or [12].…”

Section: +contrasting

confidence: 48%

Section: +mentioning

confidence: 78%

See 1 more Smart Citation

The Investigation of Mercury Contents in Polish Coal Samples

Wichliński¹,

Kobyłecki²,

Bis³

2013

Archives of Environmental Protection

View full text Add to dashboard Cite

show abstract

“…3 coal has an average sulfur content of 1.49%, with the maximum value occurring in the middle section (3.75%). Pyrite in the coal from the Xinglongzhuang mine occurs mainly as cell or fracture-infillings, with a small proportion of pyrite as disseminated fine particles or framboidal crystals; the sulfur content in the coal from this coalfield is thus attributed to epigenetic invasion as opposed to seawater influence of early diagenesis [15].…”

Section: Authigenic Mineralsmentioning

confidence: 99%

Mineralogical and Geochemical Characteristics of the Early Permian Upper No. 3 Coal from Southwestern Shandong, China

et al. 2016

View full text Add to dashboard Cite

Abstract:The Upper No. 3 coal of the Early Permian age is a major workable seam in the southwestern Shandong coalfield, which is located in the eastern part of North China. From Early Jurassic to Neogene, the coalfield was subjected to intensive tectonic processes, leading to a significant rearrangement in depth of coal seams. In this paper, three Upper No. 3 coals occurring at´228,´670 and´938 m in the Luxi, Liangbaosi, and Tangkou mines, respectively, were collected to investigate their mineralogical and geochemical characteristics, with emphasis on modes of occurrence and origin of epigenetic minerals. The three coal seams are similar in vitrinite reflectance, volatile matter yield, and maceral components, suggesting insignificant influence from the tectonic activities on coal rank. Terrigenous minerals (e.g., kaolinite and quartz) are comparable in both types and distribution patterns in the three coals. The presence of siderite and pyrite of syngenetic or penecontemporaneous origin indicate they were emplaced during peat accumulation. The distribution of epigenetic minerals (e.g., calcite, ankerite, and dolomite) are associated with the underground water activities, which were Ca (Mg, Fe)-bearing.

show abstract

“…The limits of mercury concentration for coal-fired power plant flue gas was set at less than 0.03 mg/Nm 3 according to the Chinese standard GB/T 13223-2011. The distribution and occurrence of mercury in coals from various coal basins in China had been reported intensively (Dai and Ren 2007;Liu et al 2007;Song et al 2007;Wang et al 2007;Zheng et al 2007Zheng et al , 2008Li et al 2012;Jiang et al 2015), especially those with higher content of mercury from Southwest China (Dai et al 2006a(Dai et al , 2008Wang 2009;Wang et al 2012;Zhuang et al 2012;Dai et al 2013aDai et al , b, 2014Chen et al 2015;Li et al 2016).…”

Section: Introductionmentioning

confidence: 99%

The distribution and occurrence of mercury in Chinese coals

Bai

Wang

et al. 2017

Int J Coal Sci Technol

View full text Add to dashboard Cite

Mercury is one of the most concerned hazardous elements in coals. 1018 coal samples of different coal-forming periods, coal-accumulating areas and coal ranks all over the country were collected to study the distributions of mercury in Chinese coals. The modes of occurrence of mercury were studied with float-sink experiments of 10 coals from different basins in China and correlation analyses were conducted between concentrations of mercury and maceral and sulfur contents, as well as the ash yield. The theoretic concentrations and affinities of mercury in vitrinite, inertinite, clay and pyrite were then calculated following the methods proposed by Solari. The weighted average concentration of mercury in Chinese coals is 0.154 lg/g, which is similar to that in the word coals in general. The mercury concentrations vary largely in the coals of different coal-forming period and coal-accumulating areas as geological settings play key roles in determining the geochemistry of mercury. The concentrations of mercury in coals from south and southwest China and those from North China of C 3 -P 1 are relatively higher while those from North China of J 1-2 and Northeast of J 3 -K 1 relatively lower. The general distribution trends of mercury are very similar to that of ash yield, sulfur contents in coals. Pyrite is the dominant carrier of mercury in most coals, especially in some high-sulfur coals with abundant epigenetic pyrite formed during diagenesis and metamorphism. Mercury has higher affinity to vitrinite than to inertinite in most coals, which accords with the geological origin of macerals and geochemistry of mercury.

show abstract

Distribution and mode of occurrence of As, Hg and Se and Sulfur in coal Seam 3 of the Shanxi Formation,Yanzhou Coalfield, China

Cited by 75 publications

References 77 publications

The Investigation of Mercury Contents in Polish Coal Samples

The Investigation of Mercury Contents in Polish Coal Samples

Mineralogical and Geochemical Characteristics of the Early Permian Upper No. 3 Coal from Southwestern Shandong, China

The distribution and occurrence of mercury in Chinese coals

Contact Info

Product

Resources

About