With the coal rank reduced, the light component content of the ash-free ash obtained would be increased.

随着煤阶的降低，得到的无灰煤中轻组分含量增加；

With the rise of the coal rank, the crystallinity of kaolinite and its order in the anthracite bed go up.

随着煤变质程度的升高，煤层夹矸中高岭石的结晶度、有序度也随之升高。

The effects of coal rank, cyclone and operation condition on the carbon content in fly ash were analyzed.

分析了煤质、分离器及运行条件对飞灰含碳量的影响。

The necessity of expanded coal rank for CWM production and saving coking coal resources were dis - cussed in this paper.

阐述了节约炼焦煤资源，扩大制备水煤浆煤种范围的必要性。

The results indicate that absorption energy is related with coal rank, especially with volatile matter form a linear relation.

计算结果表明，吸附热与煤的变质程度有关，特别是与煤的挥发分成线性负相关。

Based on "The Data Bank of Chinese coal Rank source" coal sources and characteristics of Huabei district were analysed and evaluated.

本文以《中国煤种资源数据库》的数据为主要依据，对华北区煤炭资源及煤质特征进行了分析评定。

The research shows that the extension of isolines of coal metamorphism or coal rank intersects the syncline axis trace at a high angle;

研究结果表明，煤变质指标等值线延展方向与向斜轴不平行而呈大角度相交；

The effects of coal rank, pyrolytic temperature of coal and mineral matter in coals or chars on their ignition temperature were determined.

使用可在加压下测定着火点的装置，研究了煤化程度、煤中矿物质和煤焦干馏温度对煤或煤焦的催化着火的影响。

The results indicate that the morphology and structure of char particles are dependent not only on maceral composition but also on coal rank.

这些结果表明，残炭颗粒的形态结构特征不仅依赖于煤的显微组分组成，而且也依赖于煤的变质程度。

Coal matrix flexibility energy decreased with the increasing of buried deepness of coal reservoir, and increased with the rising of coal rank.

煤基块弹性能随着煤储层埋深的增加而降低，随着煤级的升高而增大。

For further improving the adaptability to coal rank and boiler load variation, the concept of movable heat-insulating layer is first proposed.

为进一步改善锅炉对煤种、负荷变化的适应性，提出了可调卫燃带的概念。

The main reason for the rise of the coal rank and its composition transformation is the process of regional metamorphism and the influence of medium conditions around it.

造成这种煤的变质程度升高而夹矸成分转化的主要原因是区域变质作用及周围介质条件影响所致。

In the lean coal bed and anthracite bed of high coal rank, the main composition of the clay mineral in the tonstein intercalations is illinite, Kaolinite takes second place.

在高变质阶段的贫煤、无烟煤层中，煤层夹矸的粘土矿物成分以伊利石为主，高岭石次之。

According to relevant literatures and measured data, the relation between coal rank and coal adsorption capacity at equilibrium water content is systematically discussed in the paper.

文章根据相关文献中的吸附资料和实测数据，系统探讨了平衡水分下煤的吸附能力与煤阶的关系。

The pulverized coal-air flow ignition limit is mainly influenced by such parameters as initial temperature, ignition source temperature, coal rank and the fineness of the pulverized coal.

煤粉气流的着火界限主要受初始温度、点火源温度、煤种和煤粉细度的影响；

The results(indicated) that the approximate analysis of the pulverized coal changed to different degrees, and the particle size distribution mainly depended on the coal rank but not the HGI.

试验结果表明，经过哈氏可磨性测定仪后，各煤种的工业分析都发生了不同程度的变化，而煤粉破碎后的粒度分布取决于煤种的煤化程度，而与煤种的可磨性指数相关性较小。

This paper introduced the relationship of microcrystal structure of coke and its macroscopical properties, and the effects of coal rank and pyrogenation process on microcrystal structure etc.

介绍了焦炭微晶结构与其宏观性质的关联，煤化度及热解过程对微晶结构的影响等，并说明了研究焦炭结构的意义及其发展前景。

Effects of coal rank, coal maceral, temperature, heating rate, coal particle size, residence time, atmosphere, and pressure on the phenols production in coal conversion were discussed in this paper.

本文探讨了煤化度、煤岩组成、温度、加热速度、煤颗粒大小、停留时间、反应气氛和压力对煤转化过程中酚类产生的影响。

Application character of HNF series additives is different CWM process, coal rank and usage is introduced. Its advantages and disadvantages are summarized and its development prospect is put forward.

介绍了该系列添加剂在不同的制浆工艺、不同的煤种和不同用途的水煤浆生产中的特性；

Enrichment and accumulation of coalbed methane in low rank coal have their own unique characteristics.

低煤阶煤层气富集成藏具有自身独特的特点。

Based on the analysis of the maturing degree, abundance and type of organic matter, the characteristics of organic matter of high-rank coal in Jincheng has been expounded.

通过对晋城高煤级煤的有机质成熟度、有机质丰度和有机类型的分析，阐明了本区高煤级煤的有机质特征。

The CWS stability of high rank coal depends mainly on the structure characteristic of dispersant.

而高阶煤的成浆稳定性，主要依赖于分散剂的结构特征。

The reservoirs of the medium rank coal characterize low gas content, low gas saturation, good permeability, and high energy in Hedong area of Shanxi, China.

中国山西河东地区中阶煤储层的含气量比较低、含气饱和度低，而储层渗透性好，储层能量比较大；

Linear regression method was used to analyse the effects of maceral and rank on morphology of coal and corresponding char.

本文用多元回归方法，分析煤岩相组分和煤阶对煤及相对应煤焦表面形态的影响。

And the reservoirs of the high rank coal characterize low gas saturation, low permeability, and low energy in the south of Qinshui basin, Shanxi.

山西沁水盆地南部高阶煤储层的含气饱和度比较低，渗透率小，储层能量低。

The resources of low rank coal in the world have introduced in this paper.

本文介绍了世界低煤阶煤炭资源及其分类。

Affected by different geologic factors, coal bed gas may be enriched and burst out in the low-rank coals.

由于各种地质因素的影响，低煤级煤煤层将有可能出现煤层瓦斯富集而发生瓦斯灾害的危险。

The effect of feed coal particle size on strength of briquette is discussed when different briquetting process and rank of coalification coal are adopted.

阐述了采用不同成型工艺和使用不同变质程度煤成型时，原料煤粒度对型煤强度的影响。

The variation of medium pore diameter and porosity factor is in accordance with that of the pore volume, showing a high permeability of low rank coal reservoirs.

中值孔径、孔隙率的变化特征与孔容一致，预示了低煤级煤储层较高的基岩渗透率。

Primary factors influencing the exploration of coal - bed gas in low rank coal basins are analyzed.

分析了影响低阶煤盆地煤层气勘探的主控因素。