This chapter discusses coal conversion processes, both gasification and liquefaction. Coal has complex heterocyclic structure which is broken down to produce desirable products. Cleavage of the cyclic linkages and the chemical form of the resultant compounds is difficult to analyse and predict. Raw coal...
coal gasification and liquefaction saving 30 % 翻译结果5复制译文编辑译文朗读译文返回顶部 The coal gasification, the liquefication conserves energy 30% 相关内容 a首都是伦敦,面积约245000平方公里,人口约6千万 The capital is London, the area approximately 245000 square kilometers, the population approximate...
Coal gasification technology is the conversion of a carbonaceous material by reaction with oxygen and steam to produce synthesis gas (syngas) that is a feedstock to produce more valuable and higher quality liquid fuels such as diesel and kerosene. ...
Coal Gasification and Liquefaction. Natural Resources Forum, 2: 71–77. doi: 10.1111/j.1477-8947.1977.tb00900.x Author Information † Centre for Natural Resources, Energy and Transport Publication History Issue published online: 9 OCT 2009 Article first published online: 9 OCT 2009...
and expensive liquid-solids separation step. It is a further advantage of this invention that the coal cleaning step can be relatively inefficient with regard to the amount of coal retained with the ash-enriched portion, as this coal is ultimately utilized in the gasification step to produce the...
gasificationandliquefactionof coal produce gaseous andliquidfuels that can be easily transported (e.g., by pipeline) and conveniently stored in tanks. After the tremendous rise in coal use in the early 2000s, which was primarily driven by the growth ofChina’seconomy, coal use worldwide peaked...
An integrated coal liquefaction-gasification-naphtha reforming process wherein the slurry containing substantially the entire yield of normally solid dissolved coal produced in the liquefaction zone constitutes the only hydrocarbonaceous feed for the gasification zone and wherein substantially all of the naph...
The process of the present inventon provides an unexpected improvement in the thermal effciency of the combination process by increasing the amount of normally solid dissolved coal prepared in the liquefaction zone (26) and passed to the gasification zone (76) to enable the gasification zone (76)...
Underground coal mining is the extraction of coal from below the surface of the earth. The coal is worked through tunnels, passages, and openings that are connected to the surface for the purpose of the removal of the coal. Mechanical equipment breaks the coal to a size suitable for haulage...
Coal gasification and conversion D.J.Harris,D.G.Roberts, inThe Coal Handbook: Towards Cleaner Production: Coal Utilisation, 2013 16.2.1Direct CtL DirectCoal Liquefaction(DCL) commonly refers to catalytic hydrogenation of coal in a recycled oil solvent at high pressures with a catalyst. While a ra...