煤

The results show that the levels of the total sulfur and pyritic sulfur vary little in different size grades of coal, but in a same size grade the sulfur content increases with the density grades.

结果显示，全硫和黄铁矿硫在各粒度级煤中分布较均匀，其含量在各密度级煤中的分布随密度级的增大而增大。

In order to solve these problems, supported by Foundation for University Key Teacher by the Minisity of Education, we study on distribution of sulfur in coal samples of ShenYang HongYang No. 3 coal mine and find that the sulfur in pyrite is more than 72％ in the total sulfur of the coal. The pyritic sulfur immerges in coal and is diffcult to be removed by common methods.

针对上述问题，我们在教育部高等学校骨干教师资助计划的支持下，以沈阳红阳三矿煤为试样，对其中硫的的赋存状态进行了研究，发现该试样中的硫有72％以上为黄铁矿硫，而且黄铁矿多数呈细小颗粒浸染于煤的有机质中，用常规分选方法脱除比较困难。

Because the temperature of coal volatile pyrogenation differs from the temperature of reduction of iron oxide by H2, H2 releases at the initial stages of reduction, and the reduction efficiency of hydrogen is very low.

由于煤中挥发分的热解析出温度与氢还原铁氧化物的还原温度不一致，氢在还原初期迅速放出，导致氢的还原作用率低；提高温度和加热速度可提高煤中氢的还原作用率和挥发分的利用率。

This process organically combines the circulating fluidized bed combustion technology with boiler-front low-temperature dry distillation technology, the hot ash of circulating fluidized bed is used as the hot carrier to pyrolyze the coal and generate tar and gas. The semi-coke after pyrolysis is fed into boiler to generate steam for power generation and heat supply. The total energetic efficiency of this process is 10% higher than the single power generation process.

中科院山西煤化所开发的煤炭干馏-循环流化床燃烧多联产技术，是将循环流化床燃烧技术与炉前低温干馏技术有机地结合起来，用循环流化床锅炉的高温循环热灰作为载热体使煤发生热解，产生焦油和煤气，热解后的半焦作为锅炉燃料送入炉内燃烧以生产蒸汽，用来发电和供热，多联供集成系统比单纯发电系统的总能效率提高约10％。

They are the Tang firewood Jun, Song firewood Jun as breasts, Yuan and Ming dynasties of coal Transitional Jun Porcelain, Charcoal-Broiled Qing Jun, and the contemporary straight Yan Jun, and down draft Jun, and Jun Porcelain-free sagger, Coal burning Drawer Jun, and gas mixture burning Jun, natural gas Jun Porcelain.

它们分别是唐代柴烧钧窑、宋代双乳状柴烧钧窑、元明时期柴煤过渡时期钧窑、清代炭烧钧窑、当代直焰钧窑、倒焰钧窑、无匣钵钧窑、煤烧抽屉式钧窑、煤气混合烧钧窑、天然气钧窑。

In this paper,a general formula applicable for mixing gas source material including sapropel type Kerogen and humic type Kerogen was built up,based on the formulas given by previous scholars.

在前人判别煤型气和油型气母质类型和转化程度公式的基础上，建立了既适用于煤型气又适用于油型气母质来源的统一的判别公式。

There are two different opinions on origin of gases in Ordovician reservoir of the central gas field of Ordos basin:(1) Gases are mainly sourced from Ordovician carbonate source-rock, it is a mixed gas in which sapropelic gas dominates;(2) Gases are mainly sourced from Carboniferous coal-bearing source-rock, it is a mixed gas in which humid gas dominates.

对鄂尔多斯盆地中部气田气源问题主要有两种不同看法：一种看法认为它是以奥陶系碳酸盐烃源岩来源为主、腐泥气为主的混合气；另一种看法认为它是上古生界煤系气或煤系气为主的混合气。

I stirred up the cinders, and fetched a scuttleful myself.

我搅搅那些余烬，自己去取了一煤斗煤。

Mathematical Modeling of the Pneumatic Conveying of Semicoke in the Pilot Plant of Coal Topping;2. The semicoke from four different coal types was prepared under different temperatures.

针对目前提倡的煤部分气化燃烧系统集成优化联合生产煤气和热能的新概念，在不同温度下制得四种煤的半焦，通过热天平燃烧试验研究了半焦的燃烧特性，考察了煤种和制备温度对半焦燃烧特性的影响。

Hypoground coal of taiyuan group of which roof is the second limestone karst water (L2) confined aquifer is main coal mining seam in Siwan of Hebi mine.

鹤壁矿区寺湾煤矿主采煤层为石炭系太原群下夹煤岩，顶板为太原群第2层薄层灰岩岩溶水承压含水层。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。