Coal liquefaction - Wikipedia

Coal liquefaction is a process of converting coal into liquid hydrocarbons: liquid fuels and petrochemicals. This process is often known as "Coal to X", where X can be many different hydrocarbon-based products. However, the most common process chain is "Coal to Liquid Fuels" (CTL).

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Coal liquefaction | Britannica

Coal liquefaction, any process of turning coal into liquid products resembling crude oil.The two procedures that have been most extensively evaluated are carbonization—heating coal in the absence of air—and hydrogenation—causing coal to react with hydrogen at high pressures, usually in the presence of a catalyst.Coal hydrogenation was extensively used in Germany in World War II to ...

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coal liquefaction - Traduction française – Linguee

The Shenhua Coal Liquefaction Corporation has just completed construction work in Mongolia on China's very first coal liquefaction factory. research-eu.eu. research-eu.eu. La Shenshua [...] Coal Liquefaction Corporationvient d'ailleurs d'achever de construire en Mongolie la toute première usine chinoise de liquéfaction du charbon. research-eu.eu . research-eu.eu. 5 Other Hydrocarbons ...

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Coal Liquefaction - an overview | ScienceDirect Topics

Coal liquefaction is the process of making a liquid fuel from coal. The fundamental difference between coal, a solid, and liquid fuels is that the liquid fuels have a higher hydrogen:carbon ratio. Liquid fuels have lower ash contents and are easier to upgrade (i.e., to remove unwanted impurities such as nitrogen and sulfur). There are three major methods of producing liquid fuels from coal ...

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Coal Liquefaction | The Canadian Encyclopedia

Coal liquefaction is a process that converts coal from a solid state into liquid fuels, usually to provide substitutes for petroleum products. Coal liquefaction processes were first developed in the early part of the 20th century but later application was hindered by the relatively low price and wide availability of crude oil and natural gas. Large scale applications have existed in only a few ...

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CA1060369A - Coal liquefaction - Google Patents

COAL LIQUEFACTION ABSTRACT OF THE DISCLOSURE Insoluble material is separated from a coal lique-faction product by gravity settling in at least two gravity settlers, with overflow from a previous settler being used as feed to the subsequent settler. A promoter liquid having characterization factor of at least 9.75, a 5 volume percent distillation temperature of at least 250°F and a 95 volume ...

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CA1072898A - Coal liquefaction process - Google Patents

ABSTRACT OF THE DISCLOSURE An improved coal liquefaction process is provided which enables conversion of a coal-oil slurry to a synthetic crude refinable to produce larger yields of gasoline and diesel oil. The process is characterized by a two-step operation applied to the slurry prior to catalytic desulfurization and hydrogenation in which the slurry under-goes partial hydrogenation to crack ...

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Liquefaction of Coal - Encyclopedia of Life Support Systems

Coal liquefaction is an industrial process in which coal as raw material, through chemical reactions, is converted into liquid hydrocarbon mixture, which, under further processing, becomes desired liquid fuels or chemical feedstock. Therefore, the main purpose of coal liquefaction lies in production of either synthetic oil as a partial substitute resource for crude oil or aromatic hydrocarbons ...

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What is Coal Liquefaction? (with pictures)

02/05/2020· Coal liquefaction is generally more expensive than producing fuel from crude oil, but it can become economical if crude oil is scarce or unavailable. It was employed during WWII by the German Army, which had a large supply of coal but little oil, to run tanks and other war machines. Later, during apartheid in South Africa, coal liquefaction helped to make up for the loss of crude oil due to ...

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Is Coal Liquefaction worth it? : factorio

I use coal liquefaction to "upgrade" coal into rocket fuel mostly. As it only needs coal and water, if I build it near a lake, then I only need three train stops, a coal delivery train, a rocket fuel to silo delivery, and a refuel train to top up other stations. If I'm short on decent oil wells, then I also use it to support my plastic production but otherwise, my actual oil wells work to make ...

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Fossil energy subsidies in China's modern coal chemical ...

01/12/2019· Section 3 introduces the CCS subsidy disclosure framework based on the inventory approach. Section 4 identifies, documents and analyzes three typical subsidization policies in China's MCC industry. Section 5 takes the coal-to-liquid industry as a case study to measure the scale of CCSs and test their efficiency, effectiveness and wasteful impacts. Section 6 provides recommendations on …

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Transportable Moisture Limit for Coal

06/05/2019· Transportable Moisture Limit for Coal Disclosure The article below has been written in a sincere attempt to inform the US coal export community about the new IMSBC Code regulations for Transportable Moisture Limit (TML). There is a lot of current confusion in the industry about exactly what are the responsibilities of coal shippers and how to comply with the new regulations. To be as clear …

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Coal hydrogenation (Patent) | OSTI.GOV

Abstract. Disclosure is made of a method and apparatus for reacting carbonaceous material such as pulverized coal with heated hydrogen to form hydrocarbon gases and liquids suitable for conversion to fuels wherein the reaction involves injection of pulverized coal entrained in a minimum amount of gas and mixing the entrained coal at ambient temperature with a separate source of heated hydrogen.

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Technology assessment of clean coal technologies for …

Technology assessment of clean coal technologies for China (Vol. 2) : Environmental and energy efficiency improvements for non-power uses of coal (English) Abstract Analysts expect China to continue improving the efficiency of energy production and use, thereby decoupling the traditional relationship between gross domestic product (GDP) and energy consumption.

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America's coal economy (Journal Article) | OSTI.GOV

The U.S. Department of Energy's Office of Scientific and Technical Information

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Environmental, health and safety guidelines for coal ...

Disclosure Date 2017/02/15 23:31:34 Disclosure Status Disclosed Doc Name Environmental, health and safety guidelines for coal processing; Keywords. Occupational health and safety;fire prevention and control;community health and safety;hazardous materials management;high voltage direct current;emissions of sulfur ...

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Coal-to-Chemicals: Shenhua's Water Grab - China Water Risk

Indirect coal liquefaction, coal-fired thermal and coal mining, account for the remaining 7.75 million tons of water consumed annually. Looking further ahead, Shenhua intends to expand the current direct coal liquefaction operations significantly, adding 2.12 million tons of additional annual capacity, lifting current annual production capacity of 1.08 million tons in 2013 to 3.2 million tons ...

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method of obtaining coal - peopleperformance.be

Coal Sampling and Analysis: Methods and Models EPA United States EPA600/785024 Environmental Protection June 1985 Research and Development COAL SAMPLING AND ANALYSIS: METHODS AND MODELS Prepared for Office of Air Quality Planning and Standards Prepared by Air and Energy Engineering Research Laboratory Research Triangle Park NC 27711

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Liquéfaction en Anglais - Français-Anglais Dictionnaire

liquéfaction de traduction dans le dictionnaire français - anglais au Glosbe, dictionnaire en ligne, gratuitement. Parcourir mots et des phrases milions dans toutes les langues.

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Isotope analysis for understanding the hydrogen transfer ...

01/09/2017· Direct coal liquefaction (DCL) was investigated using a deuterium tracer method which makes it possible to determine which structural positions in the coal react with H 2 or hydrogen-donor solvents, i.e. hydrogen-transfer mechanism. D 2 and/or 1,2,3,4-d 4-tetralin (tetralin-d 4) were used in DCL of Bulianta coal at 7.0 MPa (initial charge pressure) and 445 °C for 0 or 60 min in a tubing-bomb ...

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