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Coal Liquefaction Process

1978-1-1 · A process for liquefying a particulate coal feed to produce useful petroleum-like liquid products which comprises contacting; in a series of two or more coal liquefaction zones, or stages, graded with respect to temperature, an admixture of a polar compound; or compounds, a hydrogen donor solvent and particulate coal, the total effluent being passed in each instance from a low temperature zone

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  • Coal Liquefaction Process   (Patent) | DOepatents

    Coal Liquefaction Process (Patent) | DOepatents

    1978-1-1 · A process for liquefying a particulate coal feed to produce useful petroleum-like liquid products which comprises contacting; in a series of two or more coal liquefaction zones, or stages, graded with respect to temperature, an admixture of a polar compound; or compounds, a hydrogen donor solvent and particulate coal, the total effluent being passed in each instance from a low temperature zone

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  • Exxon Donor Solvent, Coal Liquefaction   Process …

    Exxon Donor Solvent, Coal Liquefaction Process …

    1979-11-21 · This paper describes the status of the development of the Exxon Donor Solvent (or EDS) coal liquefaction process. It includes an overview of the jointly funded project and a brief description of the EDS process. It also includes a discussion of the project status, including a description of coal

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  • Direct Coal Liquefaction —   Precision Valve Engineering

    Direct Coal Liquefaction — Precision Valve Engineering

    Coal Liquefaction & Coal Gasification Valve Solutions (sheet) Liquefaction Process. In the first step of the direct coal liquefaction process, the coal is ground and mixed with oil to yield a pumpable paste. This paste is pumped to high pressure (200 - 300 bars) and is heated to the desired process temperature of about 450 - 460 °C.

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  • Coal Liquefaction | Wiki |   Everipedia

    Coal Liquefaction | Wiki | Everipedia

    Coal liquefaction's wiki: Coal liquefaction is a process of converting coal into liquid hydrocarbons: liquid fuels and petrochemicals. The conversion industry is commonly referred to as "coal conversion" or "Coal To X". "Coal to Liquid Fuels" is commonly called "CTL" or "coal liquefaction", although "liquefaction" is generally used for a non-chemical process of becoming liquid.

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  • Coal Liquefaction Process   (Patent) | DOepatents

    Coal Liquefaction Process (Patent) | DOepatents

    In an improved coal liquefaction process, including a critical solvent deashing stage, high value product recovery is improved and enhanced process-derived solvent is provided by recycling second separator underflow in the critical solvent deashing stage to the coal slurry mix, for inclusion in the process

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  • US   Patent For Coal Liquefaction Process Patent (Patent   ..

    US Patent For Coal Liquefaction Process Patent (Patent ..

    Disclosed is a two-stage process for the production of liquid hydrocarbons from coal. More particularly, disclosed is a two-stage coal liquefaction process wherein subdivided coal is substantially dissolved in a solvent in a first non-catalytic dissolving stage at the temperature in the range 750.degree. to 900.degree. F. In a second stage, the mixture of solvent, dissolved coal and insoluble

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  • What Is Coal Liquefaction? (with Pictures)     …

    What Is Coal Liquefaction? (with Pictures) …

    2019-4-4 · Coal liquefaction is a process used to turn coal, a solid fuel, into a substitute for liquid fuels such as diesel and gasoline. This process has historically been used in countries without a secure supply of crude oil, such as Germany and South Africa. The technology used in the process is quite old

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  • Coal Liquefaction | Britannica.com

    Coal Liquefaction | Britannica.com

    Coal liquefaction: 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

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  • Coal Liquefaction     Revolvy

    Coal Liquefaction Revolvy

    Coal liquefaction is a process of converting coal into liquid hydrocarbons: liquid fuels and petrochemicals . The conversion industry is commonly referred to as "coal conversion" or "Coal To X". "Coal to Liquid Fuels" is commonly called "CTL" or "coal liquefaction", although "liquefaction" is generally used for a non-chemical process of becoming liquid.

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  • Coal Gasification And   Liquefaction  SA Experiences And ..

    Coal Gasification And Liquefaction SA Experiences And ..

    2012-11-19 · Coal will continue to play a significant role in the SA energy economy Integration of various coal utilisation options in one complex (polygeneration) may be an opportunity for SA Coal gasification can be an enabler for the polygeneration concept Direct coal liquefaction is highly coal specific and very costly due to severe process conditions

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  • What Is Coal Liquefaction? (with Pictures)     …

    What Is Coal Liquefaction? (with Pictures) …

    2019-4-4 · Coal liquefaction is a process used to turn coal, a solid fuel, into a substitute for liquid fuels such as diesel and gasoline. This process has historically been used in countries without a secure supply of crude oil, such as Germany and South Africa. The technology used in the process is quite old

    View details
  • US   Patent For Coal Liquefaction Process Patent (Patent   ..

    US Patent For Coal Liquefaction Process Patent (Patent ..

    Disclosed is a two-stage process for the production of liquid hydrocarbons from coal. More particularly, disclosed is a two-stage coal liquefaction process wherein subdivided coal is substantially dissolved in a solvent in a first non-catalytic dissolving stage at the temperature in the range 750.degree. to 900.degree. F. In a second stage, the mixture of solvent, dissolved coal and insoluble

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  • GB2056478A   Coal Liquefaction Process     Google …

    GB2056478A Coal Liquefaction Process Google …

    SPECIFICATION Coal liquefaction process . GB 2 056 478 A 1 This invention concerns a process for hydrotreating coal-derived material such as coal extracts. The liquefaction of coal is well established. Coal can be extracted by various solvents, especially highly aromatic liquid solvents such as coal

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  • US   Patent For Coal Liquefaction Process Patent (Patent   ..

    US Patent For Coal Liquefaction Process Patent (Patent ..

    A process for liquefying a particulate coal feed to produce useful petroleum-like liquid products by steps which include: (a) admixing said coal feed, a solvent, particularly a non-donor solvent, and a quinone compound, or admixture of quinone compounds, to form a coal liquid slurry, and then (b) contacting said coal liquid slurry with molecular hydrogen in a liquefaction zone at temperature

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  • US4397732A   Process For Coal   Liquefaction Employing ..

    US4397732A Process For Coal Liquefaction Employing ..

    An improved coal liquefaction process is provided whereby coal conversion is improved and yields of pentane soluble liquefaction products are increased. In this process, selected feed coal is pulverized and slurried with a process derived solvent, passed through a preheater and one or more dissolvers in the presence of hydrogen-rich gases at elevated temperatures and pressures, following which

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  • Coal Gasification And   Liquefaction  SA Experiences And ..

    Coal Gasification And Liquefaction SA Experiences And ..

    2012-11-19 · Coal will continue to play a significant role in the SA energy economy Integration of various coal utilisation options in one complex (polygeneration) may be an opportunity for SA Coal gasification can be an enabler for the polygeneration concept Direct coal liquefaction is highly coal specific and very costly due to severe process conditions

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  • Coal Liquefaction: Recent Finding In   Occupational Safety ..

    Coal Liquefaction: Recent Finding In Occupational Safety ..

    2017-4-3 · Coal liquefaction is the process by which a dirty carbonaceous solid is transformed into a relatively clean hydrocarbon liquid by the applica- There are basically two t ion of heat and the addition of hydrogen. Coal liquefaction: recent finding in occupational safety and health.

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  • 10.5. Indirect Liquefaction   Processes | Netl.doe.gov

    10.5. Indirect Liquefaction Processes | Netl.doe.gov

    2019-5-11 · Indirect coal liquefaction requires first gasifying the coal into a syngas. Therefore, while direct coal liquefaction (DCL) takes coal directly into a liquid phase, indirect coal liquefaction (ICL) consists of two major steps: (a) gasification to produce a synthesis gas (syngas); and (b) conversion of the carbon monoxide (CO) and hydrogen (H 2) in the syngas to a range of hydrocarbon fuels

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  • US   Patent For Coal Liquefaction Process Patent (Patent   ..

    US Patent For Coal Liquefaction Process Patent (Patent ..

    A process for liquefying a particulate coal feed to produce useful petroleum-like liquid products by steps which include: (a) admixing said coal feed, a solvent, particularly a non-donor solvent, and a quinone compound, or admixture of quinone compounds, to form a coal liquid slurry, and then (b) contacting said coal liquid slurry with molecular hydrogen in a liquefaction zone at temperature

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  • Kinetic Modelling For Coal   Liquefaction Process – IJERT

    Kinetic Modelling For Coal Liquefaction Process – IJERT

    Coal liquefaction is an alternative coal conversion process to light oils and other value added chemicals. From the preliminary investigation it is found that conversion of volatiles from the coal to BTX started at above 3180C and 70 bar pressure.

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  • US4397732A   Process For Coal   Liquefaction Employing ..

    US4397732A Process For Coal Liquefaction Employing ..

    An improved coal liquefaction process is provided whereby coal conversion is improved and yields of pentane soluble liquefaction products are increased. In this process, selected feed coal is pulverized and slurried with a process derived solvent, passed through a preheater and one or more dissolvers in the presence of hydrogen-rich gases at elevated temperatures and pressures, following which

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  • Coal Liquefaction   Howling Pixel

    Coal Liquefaction Howling Pixel

    Coal liquefaction. 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   SlideShare

    Coal Liquefaction SlideShare

    Indirect coal liquefaction needs to go through gasification first, 2. while direct coal liquefaction involves making a partially refined synthetic crude oil from coal. It is widely believed that indirect liquefaction is more efficient than direct coal liquefaction techniques currently available. 8.

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  • Coal   Liquefaction Process   Mobil Oil Corporation

    Coal Liquefaction Process Mobil Oil Corporation

    1979-4-24 · Innovative processes for liquefaction of coal are required which are not dependent on high pressures or reducing gases or catalysts for efficient and economic liquefaction of coal. Accordingly, it is an object of the present invention to provide an improved method for converting solid carbonaceous materials into liquid derivatives.

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  • US EPA Knows Coal   Liquefaction | Research & …

    US EPA Knows Coal Liquefaction | Research & …

    2019-5-8 · At the beginning of the 20th century the direct liquefaction process was first done by reacting coal with hydrogen and process solvent at high temperatures and pressure to produce liquid fuels. This direct liquefaction process was used to produce high octane aviation gasoline by Germany during World War II. The Fischer Tropsch technology

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  • Coal Liquefaction Kinetics   | SpringerLink

    Coal Liquefaction Kinetics | SpringerLink

    Until the structure for a coal used in a liquefaction process can be completely defined and a complete analysis of all products obtained by the liquefaction can be carried out, we can only speculate on the reaction mechanism. Kinetic studies give valuable, although incomplete, information on the possible rate controlling reactions.

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  • Indirect Coal Liquefaction     Stanford University

    Indirect Coal Liquefaction Stanford University

    2005-9-7 · Indirect Coal Liquefaction Better Solution to Clean Energy System Yong-Wang Li, Director, Chief Scientist Synfuels China State Key Laboratory of Coal Conversion Institute of Coal Chemistry Chinese Academy of Sciences Taiyuan 030001. Process development and integration analysis

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  • Kinetic Modelling For Coal   Liquefaction Process – IJERT

    Kinetic Modelling For Coal Liquefaction Process – IJERT

    Coal liquefaction is an alternative coal conversion process to light oils and other value added chemicals. From the preliminary investigation it is found that conversion of volatiles from the coal to BTX started at above 3180C and 70 bar pressure.

    View details
  • Coal   Liquefaction Process   Mobil Oil Corporation

    Coal Liquefaction Process Mobil Oil Corporation

    1979-4-24 · Innovative processes for liquefaction of coal are required which are not dependent on high pressures or reducing gases or catalysts for efficient and economic liquefaction of coal. Accordingly, it is an object of the present invention to provide an improved method for converting solid carbonaceous materials into liquid derivatives.

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  • Coal Liquefaction     Phys.org

    Coal Liquefaction Phys.org

    2019-5-11 · Coal Liquefaction 9 January 2006 The tightening of worldwide oil reserves is causing the price of oil to escalate — and makes coal, which is much more abundantly available, an interesting

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  • Coal Liquefaction     IPFS

    Coal Liquefaction IPFS

    Coal liquefaction is a process of converting coal into liquid hydrocarbons: liquid fuels and petrochemicals.The conversion industry is commonly referred to as "coal conversion" or "Coal To X". "Coal to Liquid Fuels" is commonly called "CTL" or "coal liquefaction", although "liquefaction" is generally used for a non-chemical process of becoming liquid.

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  • Coal Liquefaction     Ullmann's Encyclopedia Of …

    Coal Liquefaction Ullmann's Encyclopedia Of …

    Mitsubishi Chemical Corp., Takasago Coal Liquefaction Center of Kobe Steel Ltd., Hyogo 676–8670, Japan 2 The Pennsylvania State University, University Park, Pennsylvania 16802, United States

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  • Kinetic Modelling For Coal   Liquefaction Process   Ijert.org

    Kinetic Modelling For Coal Liquefaction Process Ijert.org

    2019-4-19 · DIRECT COAL LIQUEFACTION PROCESS: Direct liquefaction of coal is conventionally referred to such a chemically thermal decomposition process in which coal, as raw material, at high temperature, under high hydrogen pressure, and in the presence of catalysts, is finally converted to liquid hydrocarbon mixtures as well as lesser

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  • Simulator For Coal   Liquefaction Based On The NEDOL …

    Simulator For Coal Liquefaction Based On The NEDOL …

    A maximum oil yield in the NEDOL coal liquefaction process was obtained with coal containing 76-78% carbon, while gas and water yields decreased with an increase in the carbon content.

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  • A New Coal Liquefaction   Process On The Path To ..

    A New Coal Liquefaction Process On The Path To ..

    2006-8-1 · A new coal-liquefaction process on the path to commercialization. light oil, and medium-heavy oil is about 51 wt.%, which will be higher than conventional coal liquefaction processes. Various types of bituminous coal can be used, producing similar yields. The estimated cost of the liquefaction is expected to be about $25-30/bbl for a 30,000

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  • Coal Liquefaction Case   Study   SchuF

    Coal Liquefaction Case Study SchuF

    2015-10-23 · SchuF Coal Liq & Gas Valves 74/71/42 Let down, solid transport and isolation technology Direct Coal Liquefaction The process of direct coal liquefaction was developed in the 1920's in Germany. Until the mid 1950's the process was operated at several sites in Germany to derive liquid hydrocarbons from coal as a substitute to standard crude oils.

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  • Overview Of Coal   Liquefaction   Energy

    Overview Of Coal Liquefaction Energy

    2013-2-21 · Overview of Coal Liquefaction James A. Lepinski Vice President Headwaters Incorporated U.S.-India Coal Working Group Meeting • Hybrid Coal Liquefaction (DCL/ICL) 4 Direct Coal Liquefaction Process Coal Refining Liquefaction Hydro-treating Fractionation C 1 –C 2 H 2 S, NH 3, CO x Make-up Hydrogen Coal + Catalyst Slurry Slurry H-Donor

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