1990
DOI: 10.1021/bk-1990-0437.ch027
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Dispersed-Phase Catalysis in Coal Liquefaction

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Cited by 9 publications
(10 citation statements)
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“…Today, coal may be liquefied at 150-200 atm and 300 o C-480 o C depending upon the process. Improvements were made through the discovery of more efficient catalysts [5][6][7][8][9][10][11][12][13][14][15][16][17][18], donor solvents, and improved reactor configurations.…”
Section: Coal Liquefaction Developmentsmentioning
confidence: 99%
See 1 more Smart Citation
“…Today, coal may be liquefied at 150-200 atm and 300 o C-480 o C depending upon the process. Improvements were made through the discovery of more efficient catalysts [5][6][7][8][9][10][11][12][13][14][15][16][17][18], donor solvents, and improved reactor configurations.…”
Section: Coal Liquefaction Developmentsmentioning
confidence: 99%
“…Since the development of catalytic coal liquefaction was initiated in 1924 [2], a wide variety of supported and unsupported catalysts have been applied [4][5][6][7][8][9][10][11][12][13][14][15][16][17][18]. Excellent review articles on the subject are available [2,4,[9][10][11].…”
Section: Introductionmentioning
confidence: 99%
“…Extensive research at Pittsburgh Energy Technology Center (Bockrath et al, 1984(Bockrath et al, , 1986(Bockrath et al, , 1991Utz et al, 1989) and at Penn State (Davis et al, 1986(Davis et al, , 1989Derbyshire et al, 1986aDerbyshire et al, , 1986bDerbyshire et al, , 1989Stansberry et al, 1987;Burgess and Schobert, 1990;Burgess et al, 1991) has demonstrated the potential of dispersed molybdenum cataly,,,t. In most cases, the catalyst was impregnated on coal as a precursor salt such as sulfided ammonium molybdate or ammonium tetrathiomolybdate, which decomposes upon heating to higher temperatures to form MoS2 (Naumann et al, 1982) and thus disperses MoS2 on coal (Stansberry et al, 1987;Utz et 'al., 1989). These previous investigations have demonstrated that low-temperature catalytic reaction using dispersed molybdenum catalyst can improve coal reactivity.…”
Section: Survey Of Relevant Literaturementioning
confidence: 99%
“…Extensive research at Pittsburgh Energy Technology Center (Bockrath et al, 1984(Bockrath et al, , 1986(Bockrath et al, , 1991Utz et al, 1989) and at Penn State (Davis et al, 1986Derbyshire et al, 1986aDerbyshire et al, , 1986bDerbyshire et al, , 1989Stansberry et al, 1987;Burgess and Schobert, 1990;Burgess et al, 1991) has demonstrated the potential of dispersed molybdenum cataly,,,t. In most cases, the catalyst was impregnated on coal as a precursor salt such as sulfided ammonium molybdate or ammonium tetrathiomolybdate, which decomposes upon heating to higher temperatures to form MoS2 (Naumann et al, 1982) and thus disperses MoS2 on coal (Stansberry et al, 1987;Utz et 'al., 1989). These previous investigations have demonstrated that low-temperature catalytic reaction using dispersed molybdenum catalyst can improve coal reactivity.…”
Section: Survey Of Relevant Literaturementioning
confidence: 99%