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中国煤
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  chinese coals
     The concentrations of sixty one elements in DPR Korea coals were determined. The studies show that elements Li,B,P,As,Se,Cd,Sn,Sb,Hg,Pb are highly enriched DPR Korea coals. The means of elements in DPR Korea coals are closer to American coals than Chinese coals,and most elements contents are distributed in the average ranges of world coals.
     对朝鲜50个煤样中61种元素含量进行测定研究,结果显示朝鲜煤相对地壳高富集元素Li,B,P,As,Se,Cd,Sn,Sb,Hg,Pb等,大多数元素含量均值与美国煤较为接近,与中国煤中元素含量相差稍大,各元素含量基本分布在世界平均范围内,没有发现异常高值,大多数元素在早晚侏罗世、古近纪煤中较其它时期更为富集.
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     Based on the progress of study on the arsenic in coals, this dissertation mainly studies the arsenic content, its distribution in Chinese coals and control factors;
     因此根据目前国内外对煤中砷的研究进展,在全国范围内有计划取样,研究中国煤中砷的含量、分布及其影响因素;
短句来源
     Using the data of identified coal resources in different districts, the author calculates the weighted average contents of 31 elements in Chinese coals by the introduction of the factor of resource for the first time.
     运用不同聚煤区煤炭已发现资源量数据,引入“储量权重”因子,计算了中国煤中31种微量元素的平均含量数据,分析了中国煤中微量元素含量分布基本特征。
短句来源
     The denitrogenation and desulphurization during hydropyrolysis of six Chinese coals were systematically investigated in H2/Ar plasma jet. The results from experiments show that HCN is the main product of coal-N at high temperature.
     对几种中国煤在H2/Ar等离子体热解过程中的脱氮脱硫进行了实验研究,结果表明:煤中氮在H2/Ar等离子体热解过程中主要以HCN形式存在,也有少量氮转化为NH3,脱氮率最高达50%;
短句来源
     The contents of fluorine in Chinese coals show logarithm normal frequency distributions.
     与世界煤相比,中国煤含氟量正常,绝大部分(90%)煤的含氟范围为47~347mg/kg,全国煤氟平均含量为136mg/kg。
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  chinese coal
     Development and Innovation of Chinese Coal Chemical Engineering Technology in the 21st Century
     21世纪中国煤化工技术的发展和创新
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     The relation between the SiO2, Al2O3, Fe2O3 and Cat) content in coal ash and softening-fluid temperature of coal ash fusibility in Chinese coal is studied in this paper.
     系统地研定了中国煤的灰熔融性软化温度ST和流动温度FT与煤灰中SiO_2、Al_2O_3、Fe_2O_3、CaO等主要成分间的关系。
短句来源
     Study on Direct Chinese Coal Liquefaction
     中国煤的直接液化研究
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     PROSPECTS FOR THE CHINESE COAL CHEMICAL INDUSTRY IN EARLY 21 CENTURY
     21世纪初中国煤化工技术展望
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     SUPERIMPOSED METAMORPHISM OF CHINESE COAL
     中国煤的叠加变质作用
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  china coal
     The research and development of pressurized coal gasification in Beijing Research Institute of Coal Chemistry, China Coal Research Institute are introduced. The fixed-bed gasification includes a Φ650mm gasifier and a Φ100mm test gasifier. The fluidized-bed gasification includes a Φ100mm test gasifier and a Φ300mm PDU gasifier.
     简要介绍了煤科总院北京煤化工研究分院在加压固定床气化—包括Φ650mm中试和Φ100mm小试技术,Φ100mm和Φ300mm加压流化床气化技术等方面的研究和开发情况,重点介绍了典型中国煤种在上述固定床和流化床气化炉试烧时的气化特性。
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     Based on the conformity and communion requirement of China coal quality data, this paper introduces the design of framework and function of coal quality database, discusses the application of Oracle9i to development of China Coal Quality Database, the emphasis is study of large network database security policy
     从中国煤特性数据共享需求出发,设计了数据库系统的结构和功能,讨论了Oracle9i在中国煤炭特性数据库开发过程中的应用,着重研究了大型网络数据库的安全管理问题。
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     The analytic hierarchy process and the fuzzy comprehensive evaluation are integrated to estimate the quality of the kaolinitic rocks in China coal measures.
     还结合模糊综合评判与层次分析法对中国煤系高岭岩 (土 )矿物品质进行了评价
短句来源
     In combined with the coal liquefaction demo project in implementation, the paper pointed out the necessary of the coal liquefaction co-production to the China coal liquefaction industry development and analyzed the possible access of co-production system for the direct liquefaction and indirect liquefaction.
     结合我国正在实施中的煤液化示范工程 ,指出了煤液化多联产对中国煤液化产业发展的必要性 ,分析了围绕直接液化和间接液化发展多联产系统的可能途径
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     On the base of research of the contemporary chemically reacting flow models, the following work with respect to the modeling of gasification process and reaction mechanism has been done: learning the advanced plasma gasification theory and experience from Russia, analyzing their one-dimensional program and using it to calculate the gasification process of on kind of China coal;
     在对现有的化学反应湍流数值模型的总结和研究的基础上,本文对其详细过程描述和机理的数值模拟进行了研究,具体工作包括:研究、消化吸收俄罗斯等离子煤气化的先进理论和经验,分析等离子煤气化一维计算程序,并使用此程序计算分析一种中国煤的气化过程和结果;
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  “中国煤”译为未确定词的双语例句
     Prospect of Coal Chemical Industry of China in the 21st Century
     21世纪中国煤化工展望
短句来源
     COAL GEOLOGY AND EXPLORATION PROSPECT OF CHINA IN 21ST CENTURY
     21世纪中国煤地质与勘探展望
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     Status and Development of Coal Basis Methanol in China
     中国煤制甲醇的现状及发展
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     Laser-induced fluorescence microscopic characteristics of coals and source rocks from China basins and its application to thermal maturity evaluation
     中国煤和烃源岩镜质组的激光诱导荧光显微特征及其应用
短句来源
     2. The concentration of fluorine versus ash content in 288 coal samples was studied.
     2、中国煤中氟含量与灰分显著正相关,表明煤中氟主要以无机矿物形式赋存。
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  chinese coals
The combustion behavior of chars from two Chinese coals has been investigated in a laboratory scale bubbling fluidized bed system in Siegen University, Germany.
      
The pyrolysis behavior of two Chinese coals has been investigated in a laboratory-scale bubbling fluidized bed system in Siegen University, Germany.
      
At this intermediary stage, experiments on three typical Chinese coals on a 1.5 MWt CFBC pilot plant have been made.
      
Therefore, we developed the way of simulation to evaluate the combustion performance of Chinese coals in CFB.
      
Twelve structural parameters of these samples were measured and compared withthose of Chinese coals.
      
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  chinese coal
In the unstable aquifer formations encountered in Chinese coal mines, freezing is always adopted for shaft constructions in an aquifer alluvium, while surface pre-grouting is generally adopted in bedrock formations.
      
The Permo-Carboniferous coals in the North China Plate account for nearly 44.45 of total Chinese coal resources, and most of the steam coals in China come from the Permo-Carboniferous coals in the North China Plate.
      
The samples were deliberately chosen to represent the 13 types of Chinese coals according to the Chinese coal classification system.
      
Design and implementation of a decision support system for multistage investment in Chinese coal production and transportation
      
To overcome this problem, the authors have applied the cointegration and error-correction models to model Chinese coal consumption data.
      
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  china coal
Comprehensive analyses of the hydrogeological conditions for establishment of the three-dimensional groundwater flow systems of the North China coal basin revealed different vertical hydraulic connection paths or channels.
      


Ⅰ. The Coal Classification Method for the Chinese Coals. (а) The Ultimate Analysis Graphical Coal Classification Method-Use the volatile Mateer on Combustible basis Vr as abscissa and the simplified coal characteristic coefficient as ordinate. (б) Proximate Analysis Graphical Coal Classification Method-Use the volatile matter on combustible basis VT as abscissa and the fixed carbon on ash free basis F. C.w Ⅱ. The Ranks (kinds) of the Chinese Coals-By using the two above mentioned graphi- ed coal classification...

Ⅰ. The Coal Classification Method for the Chinese Coals. (а) The Ultimate Analysis Graphical Coal Classification Method-Use the volatile Mateer on Combustible basis Vr as abscissa and the simplified coal characteristic coefficient as ordinate. (б) Proximate Analysis Graphical Coal Classification Method-Use the volatile matter on combustible basis VT as abscissa and the fixed carbon on ash free basis F. C.w Ⅱ. The Ranks (kinds) of the Chinese Coals-By using the two above mentioned graphi- ed coal classification methods, the Chinese coals available with ultimate analysis or proximate analysis data can be easily classified into the following different kinds as known internationally: -anthracite (A), semi-athracite (T), semi-bituminous ( C), coking coal (k), steaming fat coal ( ), gas coal ( ), long flame (candle) coal ( ) and lignite coal ( ), as tabulated on Table - 4. Ⅲ. The Properties of Chinese Coals. (а) The composition of the Chinese Coals - with the exception of ash and sulfur which vary irregularly, the other constituents. like carbon, hydrogen, oxygen, nitrogen and analytical moisture vary regularly with the variation of the vodatile matter on combustible basis V in the different stage of carbonization. (б) The Reltation between the ultimate analysis and proximate analysis for the Chinese Coals- In the bituminous coal region, the data of proximate analysis can be transferred to the ultimate analysis proximately according to the straight line formula, as for the bituinous coal. The other constituents like H, O and N, S can also be obtained by the straight line formulas as shown on the graph. (в) The Heating Value of Chinese Coals - The Heating Value of Chinese Coals; when only ultimate analysis data is available, can be checked by using the Mendeleef formula; when Duly the proximate analysis data is available, the heahng value can be checked by the Goutal Formula. When illers is only the ultimate data without any bomb calorimeter, the heating value can be obtained by the following empirical formulas:(p) The Coking Property of the Chinese Coals---The ebbing property can be represent6d by' foe coking coeffident as suggested by the author, the ratio of hydrogen to oxygen on combustible. basis (%). With the exception of anthraede, semi--anthracite and liana, ' which will have the ash in powderform, when burned, the other bituminous coals like (1) Semi--bituminous and part of the coking coal, when Vr- 16 ~ 24 7o and (%) = 0.90 1 .8, the ash after combustion will become softly caked; (2) for coking coal, Steaming fat Hr coal and gas coal, when Vr~25-47 and M~0. 58-1 .2, the ash after combustion will become strongly caked; (3) FOr gas coal and long flame coal, when Vr~31 ~46 ac and aam: =0. 34-0. 50, the ash will become softly caked. f {if) The Combustion Characteristics of Chinese Coals -- The combustion characteristics vary with the kind of coal. Which kind of coal is suitable for what kind of industrial use and which type of furnace is suitable for burning what kind' of 'coal,. all depends uPOn the rank, composition and combustion charact6rislics of the coal. F6, economy, it is necessary >to burn the poor quality coal nearby and the problem of caking inside the furnace resulting from poor quality coal muSt be properly solved. ' (in) The ash Fusion point of Chinese Coals -- The ash composition affects the fusion point. greatly. The change in ash composition will of feet the fusion poillt. Thus increasing the met,ilie oxides in the coal ash liko FeZO3, CaO and MAO ate. will raduce the fusion point and will fadlitate the ash disposal in fluid form. On the other hand, whother increasing 'the kaolin (fire clay) in the ash composition will raise the ash fusion point or not is a problem worthy for further investigation and research. ' '. It may be reaseonably assumed as suggested by the auther that the coal ash is mainly consisted of kaolin (Al.O, ZFios ZHZO) + free SiOZ + different motailic odddes (FavOr, CaO and MgO, etc ). When coal is burned, the free SiOZ will combine with some of the metallic

(Ⅰ)中国煤的分类法 (а)元素分析图解分类法─—横坐标采用纯燃质挥发物百分数V而纵坐标则用简化特性系数 (б)实用分析图解分类法─—横坐标采用纯燃质挥发物百分数V而纵坐标则采用去灰定炭百分数F.C。 (Ⅱ)中国煤的分类类别 根据上列二个新的图解分类方法,中国煤在有元素分析或实用分析数据后,即可从图解上求得分类类别,中国煤按照国际间一般分类标准,可以分为无烟煤,瘠煤、蒸汽结焦煤,炼焦煤,蒸汽肥煤,瓦斯煤,长火焰烟煤,褐煤等,已列在中国煤突用分析数据表的最后一项。 (Ⅲ)中国煤的特性 (а)中国煤的成分─—中国煤的成分,除灰分与硫磺的变化无规律外,其他成分如碳素,氢素,氧素,氮素,分析水分等的变化极有规律,此外煤的工作质水分则受外界气候影响而变化,但吸收水分(即分析水分)划与煤的含氧量有失,而变化很有规律。 (б)中国煤的元素分析与实用分析的关系─—中国煤的实用分析数据,在烟煤区域,可以按照直线关系公式,转变力元素分析的近似数据。例如其他成分如H,O及N S等亦可从直线公式(如图上所示)求得平...

(Ⅰ)中国煤的分类法 (а)元素分析图解分类法─—横坐标采用纯燃质挥发物百分数V而纵坐标则用简化特性系数 (б)实用分析图解分类法─—横坐标采用纯燃质挥发物百分数V而纵坐标则采用去灰定炭百分数F.C。 (Ⅱ)中国煤的分类类别 根据上列二个新的图解分类方法,中国煤在有元素分析或实用分析数据后,即可从图解上求得分类类别,中国煤按照国际间一般分类标准,可以分为无烟煤,瘠煤、蒸汽结焦煤,炼焦煤,蒸汽肥煤,瓦斯煤,长火焰烟煤,褐煤等,已列在中国煤突用分析数据表的最后一项。 (Ⅲ)中国煤的特性 (а)中国煤的成分─—中国煤的成分,除灰分与硫磺的变化无规律外,其他成分如碳素,氢素,氧素,氮素,分析水分等的变化极有规律,此外煤的工作质水分则受外界气候影响而变化,但吸收水分(即分析水分)划与煤的含氧量有失,而变化很有规律。 (б)中国煤的元素分析与实用分析的关系─—中国煤的实用分析数据,在烟煤区域,可以按照直线关系公式,转变力元素分析的近似数据。例如其他成分如H,O及N S等亦可从直线公式(如图上所示)求得平均数值。 (в)中国煤的发热量──中国煤的发热量,若有元素分析数据,则应用门捷列夫公式来计算核对;若仅有实用分析数据,则可用古?

The simplified Coal characteristic Coefficient β' = 2.35, as proposed in author's two previous papers to ho used with Vr for coal classification, has been for the first time repeatedly proved as shown in many graphs (Fig. 2-Fig 9) to represent (a) the foundamental characteristics of coal, like caking property, heating value, plastic layer thickness. etc. (b) the quality of the side Chain of the coal crystal (c) the percentage proportion of vitrain composition with respect to the other constitutents in petrographic...

The simplified Coal characteristic Coefficient β' = 2.35, as proposed in author's two previous papers to ho used with Vr for coal classification, has been for the first time repeatedly proved as shown in many graphs (Fig. 2-Fig 9) to represent (a) the foundamental characteristics of coal, like caking property, heating value, plastic layer thickness. etc. (b) the quality of the side Chain of the coal crystal (c) the percentage proportion of vitrain composition with respect to the other constitutents in petrographic components, during the different stages of coalification. (2) The simplified coal characteristic coefficient β' can be used to substitute the free swelling index, Roga number L.R. and the plastic layer thickness y etc in the coal classification of type together with the volatile matter on combustible basis VP for the coal classification of rank. (graph 10-graph 16) (3) Besides the VP and β' coal classification system,(Fig - 18), Carbon content on combustible basis CP with the free hydrogen H°= (HP=)for coal classification (Fig-23), VP vervus classification (Fig.-24), VP versus H°(Fig. -25) and VP versus (Fig-26) coal classification are also proposed. Comparisons of the different systems are made with the conclusion of adopting VP versus β' as the most logical system. (4) In the VP versus β' graph; the plastic layer thickness y curves (Fig.-27) represent the the rate of vitrinification during the different stages of coalification due to the different constituents of principal peat-forming plant substances. So a new international three-parameter coal classification system is proposed with the volatile matter on combustible basis VP as the first parameter and the simplified coal characteristic coefficient β' as the second principal parameter with the thickness of plastic layer y in mm as the third parameter. (Fig-28)

(1)简化特性系数β’=2.35代表着煤的分子结构中侧链的本质,而纯燃质挥发分 VP代表着煤的原始物质中侧链与核心部分的相对数量. (2)简化特性系β',即自由氢碳比率函数,是煤岩成分比例不同的标志;角质类和不透明质与透明基质数量的相对比例的标志;是镜煤质与非镜煤质含量相对数值比例的标志,亦即是镜煤化程度的标志。 (3)简化特性系β'反映了煤的特性,焦油产率,炼焦性质,胶层厚度,发热量及碳含量,氢含量,氧含量等,并有充分的证明。 (4)简化特性系β’揭露了近百年来国际间对於煤的特性的秘密,而是国际上有最完善的理论根据的分类指标。 (5)因此,作者建议(a)用VP及β’来作为中国煤工艺技术分类指标(6)用VP,β'与y作为国际煤分类指标,其中 厚度y,根据作者的见解,代表着煤在碳化过程中,凝 化的速度的标志。

The simplified coal characteristic coefficient as proposed in author's previous paper "New Industrial-genetic Classification for Chinese Coals and a New Proposal for International Coal Classification system", has been for the second time proved to represent: (a) The quality of the coal crystal; (b) The percentage proportion of vitrinite composition with respect to the other constituents in petrographic components, exinite and micrinite, during the different stages of coalification. (2) With the use of the...

The simplified coal characteristic coefficient as proposed in author's previous paper "New Industrial-genetic Classification for Chinese Coals and a New Proposal for International Coal Classification system", has been for the second time proved to represent: (a) The quality of the coal crystal; (b) The percentage proportion of vitrinite composition with respect to the other constituents in petrographic components, exinite and micrinite, during the different stages of coalification. (2) With the use of the latest published international data of elementary ultimate analysis and petrographic analysis of pure macerals of coal, the physical meaning of the simplified coal characteristic coefficient has been definitely proved to represent the quality index of the coal crystal as well as the relative proportion of petrographic constituents. (3) With banded coal of vitrain and clarain, the proposed coal classification system with the use of Vr and B' as two parameters can be used perfectly well as the other classification systems in other countries. With the non-banded coal like cannel coal and boghead coal, which are of the different origin of algae and spores, resins, then the quality of the coal will be slightly different even with the same value of B'. (4) The simplified coal characteristic coefficient is the most interesting and wonderful coefficient ever discovered to interpret the different characteristics of coals at the different stages of coalification. (5) Critical opinions are heartily welcomed by the author of this Paper.

在前一研究报告“中国煤工艺技术分类及国际煤分类新方案建议”(21)中,作者即根据许多证明而提出用Vr及简化特性系数来分类,其中 (1)纯燃质挥发份Vr代表煤分子结构侧链与核心相对数量的标志, (2)简化特性系数代表(a)煤分子结构侧链质量的新指标,(6)代表煤中镜煤含量 与非镜煤含量相对数量的标志。 但许多科学家指出原报告主要系根据中国数据经过图解分析而得出结论,而原报告内对于镜煤含量 的区域注解未曾获得最后结论,应再利用国际间公布的数据,进行验证* 此研究报告的结论证明:1简化特性系数代表着煤分子结构的质量指标;2代表着煤的岩相组成的相对数量;3代表着煤的物理化学特性;4对腐植煤来说,煤分类新方案建议是完全正确可用。 作者声明,国际间所有分类指标,均系各国科学家们深湛研究及坚苦劳动的成果,作者绝不存有把简化特性系数取而代之的意思;但这新发现的煤分子质量指标,已经一再的被证明准确,是值得考虑采用的。希望国际间科学家们正视这个新发现而提出指正的意见。 本研究报告的主要任务是: (1)运用国际间公布的数据来证明简化特性系数 代表煤分子结构侧链质量的新指标; (II)运用国际数据来证明简化特性系数 代表...

在前一研究报告“中国煤工艺技术分类及国际煤分类新方案建议”(21)中,作者即根据许多证明而提出用Vr及简化特性系数来分类,其中 (1)纯燃质挥发份Vr代表煤分子结构侧链与核心相对数量的标志, (2)简化特性系数代表(a)煤分子结构侧链质量的新指标,(6)代表煤中镜煤含量 与非镜煤含量相对数量的标志。 但许多科学家指出原报告主要系根据中国数据经过图解分析而得出结论,而原报告内对于镜煤含量 的区域注解未曾获得最后结论,应再利用国际间公布的数据,进行验证* 此研究报告的结论证明:1简化特性系数代表着煤分子结构的质量指标;2代表着煤的岩相组成的相对数量;3代表着煤的物理化学特性;4对腐植煤来说,煤分类新方案建议是完全正确可用。 作者声明,国际间所有分类指标,均系各国科学家们深湛研究及坚苦劳动的成果,作者绝不存有把简化特性系数取而代之的意思;但这新发现的煤分子质量指标,已经一再的被证明准确,是值得考虑采用的。希望国际间科学家们正视这个新发现而提出指正的意见。 本研究报告的主要任务是: (1)运用国际间公布的数据来证明简化特性系数 代表煤分子结构侧链质量的新指标; (II)运用国际数据来证明简化特性系数 代表镜煤含量 与非镜煤含量相?

 
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