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针对我国建材行业传统使用的常压固定床煤气发生炉及化肥行业固定床间歇气化炉面临淘汰,无烟煤市场萎缩的情况,提出以晋城无烟煤为原料,利用赛鼎碎煤加压气化技术,生产适合建材行业大规模使用的工业燃气。以无烟煤为原料的河北沙河年产26亿m^3工业清洁燃气项目为基础,对无烟煤与天然气价格、项目经济性的关系进行了分析,结果表明,以晋城无烟块煤运到河北沙河的到厂价935元/t计算,盈亏平衡天然气价约2.26元/m^3;以沙河工业天然气到户售价2.5元/m^3计算,盈亏平衡到厂煤价约1 077元/t,项目经济性较好。 相似文献
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近日,“亿业石油”项目在定陶县陈集镇化工园区举行奠基仪式。该项目建成投产后年可生产70万t液态天然气(LNG),将是国内最大的天然气液化生产项目。该项目总投资31.6亿元,用地面积1000亩,分两期建设,一期投资14.6亿元,建设天然气液化(LNG)项目,二期投资17亿元,建设年产60万t甲醇汽油项目。一期工程建设一座日处理能力300万标准m^3的天然气液化项目,达产后,年可处理10亿m^3天然气,生产70万t液态天然气(LNG),将是国内最大的天然气液化能力项目,年销售收入40亿元,上缴税金3亿元,新增就业100人。 相似文献
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正河南能源新疆龙宇能源准东煤化工有限责任公司40亿m3/a煤制天然气示范项目2014年4月10日在新疆昌吉州奇台县芨芨湖工业园区举行开工仪式。该项目总投资242亿元,分两期工程建设,其中一期工程投资176亿元,预计2017年8月建成投产,年产天然气20亿m3。煤制气示范项目采用国内首创的碎煤加压气化+水煤浆气化组合工艺技术,主要生产装置包括煤气化、甲烷化、自备热电站、空分、备煤、酚氨回收及配套的三废处理等设施。项目主产品为天然气,副产品有焦油、中 相似文献
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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。 相似文献
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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. 相似文献
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大同侏罗纪10—11#煤煤质特征及其控制因素 总被引:1,自引:0,他引:1
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。 相似文献
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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. 相似文献
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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。 相似文献
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国内煤化工的现状及发展 总被引:2,自引:0,他引:2
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。 相似文献
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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. 相似文献