Development of Highly Dispersed Coal .

    Intramolecular Friedel-Crafts alkylation and chloroalkylation of 5-aryl-1,1,1-trifluoropentan-2-ones. A route to (trifluoromethyl)dihydronaphthalenes and (trifluoromethyl)tetrahydronaphthalenes

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    Direct Coal Liquefaction: Lessons Learned

    Two-Stage Liquefaction at Wilsonville Catalytic Liquefaction L-C Fining HT Solvent Recovery Ash/Coke Coal Slurry Distillate ITSL Final Run • Low severity catalytic liquefaction • No Inter-stage separation • Moderate severity hydrotreating and hydrocracking • Match rate of solvent hydrogenation with that of coal decomposition • Ashy bottoms recycle • Make hydrogen from steam ...

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    Coal Conversion – Pathway to Alternate Fuels

    Direct Liquefaction – One-stage reactor technology – Two-stage reactor technology – Co-processing – Hybrid Indirect Liquefaction – Gas reactors – Slurry reactors . Miller EIA 2007 03/28/07 U.S. Department of Energy 5 Coal Liquefaction Technologies Source: "Coal Conversion – A Rising Star," 23rd Int'l Pittsburgh Coal Conference, September 25- 28, 2006. Mild Pyrolysis ...

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    Patents Assigned to International Coal Refining .

    Abstract: An improved SRC-I two-stage coal liquefaction process which improves the product slate is provided. Substantially all of the net yield of 650.degree.-850.degree. F. heavy distillate from the LC-Finer is combined with the SRC process solvent, substantially all of the net 400.degree.-650.degree.

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    Status of coal liquefaction in the United States .

    Presentations were made by both EPRI contractors and distinguished invited guests on their work in the following topical areas: Operation of large coal liquefaction pilot plants, two-stage liquefaction, and liquefaction-related research. The conferees discussed the operations of the large pilot plants, which are testing the H-Coal, Exxon Donor Solvent, and VEBA/OEL technologies. Three ...

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    Coal liquefaction - OilfieldWiki

    There is also a number of two-stage direct liquefaction processes; however, after 1980s only the Catalytic Two-stage Liquefaction Process, ... If coal liquefaction is done without employing either carbon capture and storage technologies or biomass blending, the result is lifecycle greenhouse gas footprints that are generally greater than those released in the extraction and refinement of ...

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    Status of coal liquefaction in the United States .

    Presentations were made by both EPRI contractors and distinguished invited guests on their work in the following topical areas: Operation of large coal liquefaction pilot plants, two-stage liquefaction, and liquefaction-related research. The conferees discussed the operations of the large pilot plants, which are testing the H-Coal, Exxon Donor Solvent, and VEBA/OEL technologies. Three ...

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    Development of a dispersed iron catalyst for first .

    The bituminous coal was slurried with second-stage vacuum tower overhead (V-1074) from Run 257 of the Wilsonville Advanced Coal Liquefaction Test Facility. This sample was generated while operating in a close-coupled integrated two-stage liquefaction mode [15]. Properties of the coal are summarized in Table 1. Properties of the solvent are summarized in Table 2. The molybdenum catalyst ...

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    Coal Liquefaction - Kaneko - - Major Reference .

    Abstract The article contains sections titled: 1. Introduction 1.1. Commercial Development 1.2. Historical Background 2. Indirect Coal Liquefaction 2.1. Preparation of Synthesis Gas 2.1.1. Coal Gas...

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    Staged temperature hydrogen-donor coal .

    OSTI.GOV Patent: Staged temperature hydrogen-donor coal liquefaction process. Staged temperature hydrogen-donor coal liquefaction process. Full Record; Other Related Research; Abstract ...

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    Effect of solvent hydrotreatment on product yield .

    Effects of solvent hydrotreatment on product yields in the NEDOL coal liquefaction process were examined based on the data obtained by a 150 t/d pilot plant operation. When the hydrogen gas consumption in the liquefaction stage was kept constant at 4.7 wt.%-daf (wt.% on the basis of dry and ash-free coal), the yield of the oil fraction increased from 51.0 to 54.9 wt.%-daf with an increase in ...

    Cited by: 11
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    Coal liquefaction | Project Gutenberg Self .

    Coal liquefaction: | |Coal liquefaction| is a process of converting coal into liquid hydrocarbons: liquid fuel... World Heritage Encyclopedia, the aggregation of the largest online encyclopedias available, and the most definitive collection ever assembled.

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    Coal liquefaction - WikiMili, The Free Encyclopedia

    Indirect coal liquefaction (ICL) processes operate in two stages. In the first stage, coal is converted into syngas (a purified mixture of CO and H 2 gas). In the second stage, the syngas is converted into light hydrocarbons using one of three main processes: Fischer–Tropsch synthesis, methanol synthesis with subsequent conversion to gasoline or petrochemicals, and methanation.

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    Investigation of First-Stage Liquefaction of Coal .

    Development of first-stage co-liquefaction of Chinese coal with waste plastics. Chemical Engineering and Processing 2004, 43, 145-148. DOI: 10.1016/S0255-2701(03)00076-X. Takao Kaneko, Frank Derbyshire, Eiichiro Makino, David Gray, Masaaki Tamura. Coal Liquefaction. 2001, ...

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    US3692662A - Coal liquefaction at staged .

    in the solvent liquefaction of slurried caking-type coal solids at elevated depolymerizing temperatures above 700* f., the formation of uncovertible coal residues is reduced by first forming a substantially complete dispersion of the coal in the solvent before exposing the coal to depolymerizing temperatures. for example, the slurry is first maintained at temperatures within the range from ...

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    Direct Coal Liquefaction - Bellona

    A two-stage direct liquefaction process is designed to give distillate products via two reactor stages in series. The primary function of the first stage is coal dissolution and is operated either without a catalyst or with only a low-activity disposable catalyst. The heavy coal liquids produced in this way are hydrotreated in the second stage in the presence of a high-activity catalyst to ...

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    (PDF) Recent Advances in Direct Coal Liquefaction

    temperature-staged liquefaction of the coal, while the pretreatm ent of Big Brown coal led to little or no . improvement in oil yields. Although it is commonly believed that the swelling solvents ...

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    H-Coal® and H-Coal®TS Services - HTI

    The need for improved yield and selectivity have led to a two-stage catalytic coal liquefaction service called H‑Coal ® TS enabling the optimization of the operating conditions in each reactor. H-Coal ® and H‑Coal ® TS (two stage) services are the result of extensive experience in the field of coal processing. Our research and development services can adapt the conversion system and the ...

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    Process for coal liquefaction in staged dissolvers .

    @article{osti_864805, title = {Process for coal liquefaction in staged dissolvers}, author = {Roberts, George W and Givens, Edwin N and Skinner, Ronald W}, abstractNote = {There is described an improved liquefaction process by which coal is converted to a low ash and low sulfur carbonaceous material that can be used as a fuel in an environmentally acceptable manner without costly gas .

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    Direct Coal Liquefaction - McIlvaine Company

    Multi-Stage Slurry Phase Liquefaction HTI Coal Capacity 100 tons/day 50 tons/day 20 tons/day 50 tons/day 250 tons/day 250 tons/day 6 tons/day 3 tons/day Proof-of-concept Consol Energy Inc. and Mitretek Systems, July 2001. 15 Non-U.S. Direct Liquefaction Processes Country Germany Japan Facility BOTTROP Plant – I.G. Farben Variant Brown Coal Liquefaction Plant – ITSL Variant – .

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    Coal Liquefaction - LinkedIn SlideShare

    Direct Liquefaction The primary function of the first stage is coal dissolution and is operated either without a catalyst or with only a low-activity disposable catalyst. The heavy coal liquids produced in this way are hydro treated in the second stage with a high-activity catalyst to produce additional distillate.

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