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Coal liquefaction is a process of converting coal into liquid hydrocarbons: liquid fuels and petrochemicals.This process is often known as "coal to X" or "carbon to X", where X can be many different hydrocarbon-based products.
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Coal industry groups promote the idea of "clean coal". In one video by the American Coalition for Clean Coal Electricity, coal lumps are portrayed as characters singing carols with names like "Frosty the Coalman." [172] Since the mid-1980s, the term "clean coal" has been widely used with various meanings. [173]
The UK patent office have advised that the full patent application GB2501074 by Portman Energy be published 16 October 2013. A wide variety of coals are amenable to the UCG process and coal grades from lignite through to bituminous may be successfully gasified. A great many factors are taken into account in selecting appropriate locations for ...
There is a residue of unreactive tarry compounds mixed with ash from the coal and catalyst. To minimise the loss of carbon in the residue stream, it is necessary to have a low-ash feed. Typically the coal should be <10% ash by weight. The hydrogen required for the process can be also produced from coal or the residue by steam reforming.
In December 2012, it started cooperation with Ukrainian energy company DTEK to evaluate potential of the underground coal gasification on the DTEK's local coal resources. [25] Linc Energy had a subsidiary in Angren, Uzbekistan called Yerostigaz. Yerostigaz was established in 1961 and operated in the field of underground coal gasification.
A coking factory or a coking plant is where coke and manufactured gas are synthesized from coal using a dry distillation process. The volatile components of the pyrolyzed coal, released by heating to a temperature of between 900°C and 1,400 °C, are generally drawn off and recovered. There are also coking plants where the released components ...
Coal is the most abundant fossil fuel on the planet, and widely used as the source of energy in thermal power stations and is a relatively cheap fuel. Coal is an impure fuel and produces more greenhouse gas and pollution than an equivalent amount of petroleum or natural gas. For instance, the operation of a 1000-MWe coal-fired power plant ...