我国非炼焦煤在炼焦中的应用

介绍了我国无烟煤、贫煤、不黏煤和长焰煤等非炼焦煤的性质及在炼焦生产中的应用情况。利用非炼焦煤代替部分焦煤炼焦,成本优势十分明显,既可缓解焦煤资源不足的压力,还能优化我国煤炭资源的利用。     

大同侏罗纪10—11＃煤煤质特征及其控制因素

研究了大同10－11＃煤的变质程度和煤岩特征,指出高含量的丝质组是大同10－11＃煤最主要的煤岩特征,分析了大同10－11＃煤煤类、化学和工艺性质与其沉积环境和变质程度的关系,探讨了大同10－11＃煤煤质特征及其成因因素,提出了煤炭分选技术是扩大大同煤利用途径的有效手段,为大同煤的合理利用提供了理论基础。     

常压下煤的碱处理脱灰

在融碱法和高压液减法脱灰的基础上,研究了煤的常压液碱法脱灰。考察了碱煤比、反应温度、时间、粒度组成等对两种煤脱灰的影响,并对脱灰机理作了初步分析。     

国内煤化工的现状及发展

介绍了国内煤化工行业的现状,详细介绍了煤制油、煤制烯烃、煤制天然气、煤制乙二醇、煤制芳烃项日的技术、经济情况,指出通过开发下游产品,合理利用CO2来改善产品单一、节能减排压力大问题。     

洁净煤技术中的煤岩学问题

本文简要讨论了洁净煤技术中的煤岩学问题，就燃烧、煤预备中煤岩学的应用等进行了探讨。     

Dependence of coal liquefaction behaviour on coal characteristics. 8. Aspects of the phenomenology of the liquefaction of some coal

Steps are now being taken to define in more detail the phenomenology of coal liquefaction and to provide a scientific basis for empirical correlations previously established between liquefaction conversion and basic compositional characteristics of coals. The rates of production of oils, asphaltenes and preaphaltenes have been determined at four temperatures for three coals, two of Carboniferous and one of Creaceousage. Products are formed more slowly from the younger coal (which is of slightly lower rank) than from the others, but oxygen, partly as OH but probably mostly in a type of ether, is lost more rapidly. It is estimated that the maximum content of O as cleavable ether is 7.7 atoms/100 C atoms for the younger coal (from Wyoming) and 4.1 and 5.1 for the other two (from Oklahoma and Ohio, respectively). Until ≈ 50% of the amount present in the Oklahoma coal is lost, the rates of removal of oxygen and organic sulphur are approximately equal; beyond this level, the removal of S is more rapid. The loss of organic sulphur from the Ohio coal is slightly faster. Even so, the data do not support the idea that cleavage of thioethers is more rapid than that of ethers and that this is the basic reason why a high organic sulphur content tends to promote liquefaction. Conversion of the pyrite in the Ohio coal to pyrrhotite occurs considerably more rapidly than the pyrite in the Oklahoma coal. In preliminary experiments, it is shown that a curve-resolving programme allows two aromatic and five aliphatic C-H stretching vibrations to be distinguished in FTIR spectra of the hexane-insoluble products, and the distribution changes with degree of conversion. In particular, there is evidence that new aryl methyl are generated during liquefaction, in agreement with evidence from oxidation studies.     

神东矿区侏罗纪2-2#煤煤质特征研究

根据煤岩学、煤化学与扫描电镜分析结果 ,研究了神东矿区 2 -2 # 煤的煤岩特征及主要性质 ,探讨了神东煤变质程度、显微组成 (包括矿物组成 )对其性质的影响 ,认为高含量的丝质组影响了其液化性能 ,而煤中相对含量较高的次生方解石影响了其煤灰熔融性 ,动力配煤和煤岩分选技术是进一步改善神东煤利用性能的两种有用技术     

Origin of the Mn2+ e.p.r. spectrum in Pittsburgh No. 8 bituminous coal

The e.p.r. and i.r. spectra of hand-picked samples of calcite from Pittsburgh No. 8 coal, show that it contains the Mn²⁺ paramagnetic ion and clay minerals as impurities. Furthermore, comparison of the e.p.r. spectra of hand-picked and natural calcite shows that the Mn²⁺ spectrum in this coal originates from calcite, which when diluted in KBr or coal produces a spectrum similar to that reported by other investigators. The results obtained when coal-derived calcite was treated with dilute H₂SO₄ and HCI rules out the possibility that the Mn²⁺ originates from the pyrite or clays present in the coal.     

加快发展洁净煤技术

介绍了水煤浆技术、煤气化和间接液化技术以及煤炭直接液化技术的国内外现状和发展趋势。     

煤化工技术研究概况

煤炭作为我国能源主体的格局将在很长一段时间内不会改变。随着我国出现越来越严重能源安全问题,煤化工已成为社会关注的热点,并因此得到快速发展。文章综述了煤化工技术研究进展,展望了现代煤化工新技术发展方向。     

500万t／a煤炭洗选技术工艺探析

洁净煤技术是解决环境污染的重要途径,洗选煤技术是洁净煤技术的源头技术。煤炭的洗选方法很多,介绍了几种洗选加工工艺流程,选出合适的工艺流程处理煤,有助于保护环境．     

露天煤矿煤质对煤场库存的影响

煤场库存关系到区域煤炭的供应关系是否能够平衡发展,保证其数据资源的精准性,是煤矿库存管理和控制的依据。针对煤场库存影响的因素进行探析,尤其是露天煤矿煤质因素对其产生的影响。从露天煤矿煤质因素对于煤场库存的影响出发,在此基础上依次从发热量、水分和灰尘3个角度探析了煤质因素对于煤场库存的作用。     

开滦煤化工产业发展思路探讨

结合开滦集团煤化工产业发展现状,分析了开滦可用于煤炭气化的资源情况,通过建设方案比选探讨,提出以现有煤-焦-化产业为支撑,以小气化带动大气化,建设大型煤气化制烯烃项目,促进新型煤化工产业链尽快形成,实现开滦煤化工产业的持续快速发展。     

焦炭反应性与煤岩亚组分的关系研究

为研究原料煤性质对焦炭反应性的影响,从煤岩亚组成的角度分析了均质镜质体、基质镜质体、丝质体及粗粒体与焦炭反应性的关系,研究了其对焦炭反应性产生的综合影响。结果表明,均质镜质体、基质镜质体、丝质体及粗粒体含量分别为37%~46%、19%~30%、11%~13%、3%~6%时,焦炭反应性最小;均质镜质体和基质镜质体有利于形成反应性较低的焦炭结构;粗粒体和丝质体炼焦过程中未发生软化熔融,不利于形成反应性较低的焦炭结构;在相同变质程度下,基质镜质体对形成反应性较低焦炭结构所起的作用大于均质镜质体,粗粒体对形成反应性较低焦炭结构所产生的不利影响大于丝质体。     

Some physical properties of Canadian coals and their effects on coal reactivity

The pore volume, surface area and compressibility of eleven Canadian coals, varying in rank from lignite to semianthracite, have been determined by mercury porosimetry, gas adsorption method and relations derived from helium and mercury densities. The total pore volume was measured in the diameter range of 0.2 nm–2.98 μm, which was subdivided into two groups, namely the micropore region (< 0.0036 μm) and the combined meso- and macropore region (0.0036–2.98 μm). It has been determined that the porosity of the eleven coals studied varies from 2 to 39%. It has been found that the total pore volume, micropore volume, surface area and the apparent compressibility of these coals decrease with increase in the carbon content, or the rank of the coals. The effect of the total pore volume, micropore volume and surface area on chemical reactivity of the coal is discussed separately. A good correlation was obtained between the carbon content and helium density of the coal after correction is made for the mineral content.     

神华动力用煤燃烧特性研究

整理了10年来神华矿区各矿点的煤质常规及非常规试验数据,并根据动力煤特性判别方法,对神华煤进行评价.同时,将前述基础特性与国内主要烟煤进行比较,以便更为确切的了解神华煤特点,为燃用神华煤的电厂及电力设计院等提供参考.     

我国现代煤化工跨越发展二十年

为推进现代煤化工的健康有序发展,系统回顾了我国现代煤化工近20 a的跨越发展情况,并对我国现代煤化工产业发展进行展望。"九五"期间为我国现代煤化工从实验室走向工程化的起步阶段,形成了一批煤化工新技术实验室研发成果;"十五"期间为我国现代煤化工从实验室走向工程化的攻坚阶段,取得了一批现代煤化工核心技术中试研究成果;"十一五"期间是我国现代煤化工从工程化走向产业化的示范阶段,建成了一批现代煤化工商业化示范项目;"十二五"期间,我国现代煤化工产业进入了技术、经济、环保等全方位示范阶段,完成了一批大型商业化示范项目建设。未来应在国家政策的支持下,从资源、环境、社会可持续发展的全视角重新审视和科学谋划我国煤化工行业的发展,从原料煤资源、水资源、物流运输条件、环境承载能力、技术经济等多角度重新评估和科学决策新建煤化工项目的实施。     

煤系颗粒在高分子材料生产中的应用

当前高分子材料行业发展迅速,以原煤、煤矸石(煤系高岭土)、粉煤灰等煤系颗粒作为高分子复合材料填充剂显示出极大的优势。本文介绍了原煤微粒、煅烧煤矸石颗粒、粉煤灰粒珠等的特性及其在高分子材料生产中的应用,认为这些应用既能提高煤的利用率和附加值,又能提高高分子复合材料的各项性能,同时能解决环保问题,具有非常良好的优势和前景。     

煤在溶剂精炼转化工艺中的化学变化及工艺特性

作为煤炭生产大国，就煤取材，因煤制宜地发展溶剂精炼煤工业具有很大潜力。尽早开发这一新工艺，可以大大提高煤炭资源的利用效率和经济效益，并可高度改变环境状况。本文简要介绍了国内外对煤的化学结构，及其在溶剂精炼工艺中的特性研究的主要成果和结论。