1) low rank soft coal
低阶烟煤
1.
Based on the isothermal adsorption tests,the proximate analysis,maceral analysis and mercury penetration experiment,24 samples at different temperature(30,40,50,55,60 ℃)were studied for studying the CO adsorptive characters and factors of low rank soft coals.
为了研究低阶烟煤(中等变质程度)对CO气体的吸附性能及影响因素,对24种低阶烟煤在不同温度下(30,40,50,55,60℃),进行了CO等温吸附实验、煤质分析、煤岩分析和压汞实验,利用Mathematic程序、Qm软件对实验结果进行了分析,结果表明:温度较低(T≤50℃)时,可以用Langmuir方程来描述,与瓦斯吸附模型相一致;温度较高时(T>50℃),CO的吸附量与压力呈线性增加关系,可采用Henry方程(Q=KP)来描述,与低阶煤对N2的吸附模型相一致;低阶烟煤中惰质组和过渡孔(10~100 nm)含量普遍较高,对煤样吸附CO有较大影响,且与CO吸附量呈正相关。
2) Jurassic Weak & Non-stick Coal in North Shaanxi Province
陕北低阶烟煤
3) low rank coal
低煤阶煤
1.
For making best use of low rank coal which came up to 40% in China's total coal reserve,the new method of gradual gasifying of low rank coal was put forward,namely,mild gasification and its heat coalite gasified continuously under high temperature,and the market and profits of its product were analyzed.
为充分利用好占中国煤炭资源 4 0 %以上的低煤阶煤 ,提出低煤阶煤分级气化新工艺———温和气化及其热半焦连续高温气化 ,并对其产品进行了其市场和经济分
2.
The resources, production, consumption and classification of low rank coal in the world have been described.
阐述了世界低煤阶煤的资源、生产、消费及其分类，国际低阶煤分类日趋统一，结合我国资源特点，建议增加次烟煤（ｓｕｂｂｉｔｕｍｉｎｏｕｓｃｏａｌ）类，便于和国际低阶煤分类衔接。
3.
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。
4) anthracite rank
无烟煤煤阶
1.
In this study,the effect of anthracite rank and binders on the reactivity of anthracite formed cokes were major objects.
重点研究了无烟煤煤阶和粘结剂对型焦反应性的影响 ,为便于分析 ,同时对粘结剂和原料无烟煤的反应性进行了研究 。
5) low rank bitumite
低级烟煤
6) low-rank coal
低煤阶
1.
Exploration and development of CBM from low-rank coals have been very successful in the world,and its exploration potential in China is very large because China is very rich in such resource.
世界范围内低阶煤层气勘探开发已获得了巨大的成功,中国拥有丰富的低煤阶煤层气资源,具有广阔的勘探前景。
2.
CBM gas reservoirs in low-rank coals are featured by large thickness of coal seams,high permeability,low gas content,and high adsorption saturation.
低煤阶煤层气藏具有煤层厚度大、渗透性好、含气量低但吸附饱和度较高等特征。
3.
In recent years, the rapid development of the coalbed methane accumulation theory and exploitation technology have led to the successful development of low-rank coalbed methane accumulations, continuous thin-layer methane accumulations and high-rank, low-permeability coalbed methane accumulations, which has greatly widened the coalbed methane development scope.
近年国内外煤层气成藏理论、开发技术的快速发展,使得低煤阶气藏、连续薄层气藏、高煤阶低渗气藏等都获得成功开发,大大拓宽了煤层气的开发领域。
补充资料：烟煤
| 烟煤 bituminous coal 由褐煤经变质作用转变而成的煤种。煤化程度高于褐煤而低于无烟煤。包括长焰煤、气煤、肥煤、焦煤、瘦煤、贫煤等。呈灰黑至黑色，具沥青光泽至金刚光泽，通常有条带状结构 ，不含原生腐殖酸。挥发分为10％～40％ ，一般随煤化程度增高而降低。碳含量为76％～92％，发热量较高，热值为2.71～3.72万焦／千克 。大部分烟煤具有粘结性，燃烧时火焰高而有烟，故名烟煤。烟煤储量丰富，用途广泛，可作为炼焦、动力、气化用煤。烟煤燃烧多烟容易造成空气污染。 |
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条