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141106e19921001||| ot f0|||||eng|d |
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|a (TOE)ost7150506
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|a (TOE)7150506
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|a TOE
|c TOE
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|a GDWR
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|a 01
|2 edbsc
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|a E 1.99: bcrnl-l--1668
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| 086 |
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|a E 1.99:doe/pc/91041-t4
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| 086 |
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|a E 1.99: bcrnl-l--1668
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| 088 |
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|a bcrnl-l--1668
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|a doe/pc/91041-t4
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| 245 |
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|a Preconversion processing of bituminous coals
|h [electronic resource] :
|b New directions to improved direct catalytic coal liquefaction. [High temperature soaking coal in coal liquids prior to liquefaction]
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| 260 |
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|a Washington, D.C. :
|b United States. Department of Energy ;
|a Oak Ridge, Tenn. :
|b distributed by the Office of Scientific and Technical Information, U.S. Department of Energy,
|c 1992.
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| 300 |
|
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|a Pages: (24 p) :
|b digital, PDF file.
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| 336 |
|
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|a text
|b txt
|2 rdacontent.
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| 337 |
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|a computer
|b c
|2 rdamedia.
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| 338 |
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|a online resource
|b cr
|2 rdacarrier.
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| 500 |
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|a Published through SciTech Connect.
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| 500 |
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|a 10/01/1992.
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| 500 |
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|a "doe/pc/91041-t4"
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| 500 |
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|a " bcrnl-l--1668"
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| 500 |
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|a "DE93006439"
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| 500 |
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|a Not Available.
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| 500 |
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|a BCR National Lab., Pittsburgh, PA (United States)
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| 520 |
3 |
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|a Soaking coal in coal liquids at 300-400[degrees]C (high-tenperature soaking) has been studied for coal dissolution prior to liquefaction in the previous task. Two high-volatile bituminous coals, Illinois No. 6 and Pittsburgh No. 8, were examined in three different coal liquids. The high-temperature soaking was effective to solubilize more than 70 wt% cf these coals. The mechanism of disintegration of coal by the high-temperature soaking was investigated under various soaking conditions. The products was also analyzed with solvent swelling. These results were rationalized that coal is solubilized primarily by physical disintegration. The derived mechanism was consistent with the new concept of coal structure: A significant portion of coal is physically associated, not three-dimensionally cross-linked. Radically-induced scission reactions were proposed to prorate breakage of coal moleculs by the combination of the high-temperature soaking before liquefaction. In this term, the effect of radical initiators were investigated under the conditions of the high-temperature soaking and liquefaction. Illinois No. 6 coal and a coal liquid derived from the same coal were used. The first section reports the effect of radical initiators on coal disintegration, and the second section reports the effect of a radical initiator on coal liquefaction. Radical initiators had a positive effect on disintegration. However, the effect was highly temperature-dependent and had a negative effect on liquefaction at high tenperatures.
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| 536 |
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|b AC22-91PC91041.
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| 650 |
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|a Bituminous Coal.
|2 local.
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| 650 |
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|a Dissolution.
|2 local.
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| 650 |
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|a Coal Liquefaction.
|2 local.
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| 650 |
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7 |
|a Catalysis.
|2 local.
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| 650 |
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7 |
|a Coal Liquids.
|2 local.
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| 650 |
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7 |
|a Experimental Data.
|2 local.
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| 650 |
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7 |
|a Heat Treatments.
|2 local.
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| 650 |
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7 |
|a Progress Report.
|2 local.
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| 650 |
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7 |
|a Radicals.
|2 local.
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| 650 |
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7 |
|a Research Programs.
|2 local.
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| 650 |
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7 |
|a Temperature Effects.
|2 local.
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| 650 |
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7 |
|a Tetrahydrofuran.
|2 local.
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| 650 |
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7 |
|a Tetralin.
|2 local.
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| 650 |
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7 |
|a Toluene.
|2 local.
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| 650 |
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7 |
|a Water.
|2 local.
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| 650 |
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|a Alkylated Aromatics.
|2 local.
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| 650 |
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|a Aromatics.
|2 local.
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| 650 |
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7 |
|a Black Coal.
|2 local.
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| 650 |
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|a Carbonaceous Materials.
|2 local.
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| 650 |
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7 |
|a Coal.
|2 local.
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| 650 |
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7 |
|a Data.
|2 local.
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| 650 |
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7 |
|a Document Types.
|2 local.
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| 650 |
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7 |
|a Energy Sources.
|2 local.
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| 650 |
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7 |
|a Fluids.
|2 local.
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| 650 |
|
7 |
|a Fossil Fuels.
|2 local.
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| 650 |
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7 |
|a Fuels.
|2 local.
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| 650 |
|
7 |
|a Furans.
|2 local.
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| 650 |
|
7 |
|a Heterocyclic Compounds.
|2 local.
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| 650 |
|
7 |
|a Hydroaromatics.
|2 local.
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| 650 |
|
7 |
|a Hydrocarbons.
|2 local.
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| 650 |
|
7 |
|a Hydrogen Compounds.
|2 local.
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| 650 |
|
7 |
|a Information.
|2 local.
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| 650 |
|
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|a Liquefaction.
|2 local.
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| 650 |
|
7 |
|a Liquids.
|2 local.
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| 650 |
|
7 |
|a Materials.
|2 local.
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| 650 |
|
7 |
|a Numerical Data.
|2 local.
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| 650 |
|
7 |
|a Organic Compounds.
|2 local.
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| 650 |
|
7 |
|a Organic Oxygen Compounds.
|2 local.
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| 650 |
|
7 |
|a Oxygen Compounds.
|2 local.
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| 650 |
|
7 |
|a Peroxides.
|2 local.
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| 650 |
|
7 |
|a Hydrogen Peroxide.
|2 local.
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| 650 |
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7 |
|a Thermochemical Processes.
|2 local.
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| 650 |
|
7 |
|a Coal, Lignite, And Peat.
|2 edbsc.
|
| 710 |
1 |
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|a United States.
|b Department of Energy.
|4 spn.
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| 710 |
1 |
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|a United States.
|b Department of Energy.
|b Office of Scientific and Technical Information.
|4 dst.
|
| 856 |
4 |
0 |
|u http://www.osti.gov/servlets/purl/7150506/
|z Online Access
|
| 907 |
|
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|a .b59690501
|b 03-06-23
|c 05-26-10
|
| 998 |
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|a web
|b 05-26-10
|c f
|d m
|e p
|f eng
|g
|h 0
|i 2
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| 956 |
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|a Information bridge
|
| 999 |
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|s b0f1ba72-5d41-52ac-b00a-e923cdd20738
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| 952 |
f |
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|p Can circulate
|a University of Colorado Boulder
|b Online
|c Online
|d Online
|e E 1.99: bcrnl-l--1668
|h Superintendent of Documents classification
|i web
|n 1
|
