Health & Environmental Research Online (HERO)


Print Feedback Export to File
3136164 
Journal Article 
Comparison of the effect of catalysts in coal liquefaction with tetralin and coal tar distillates 
Legarreta, JA; Caballero, BM; Demarco, I; Chomon, MJ; Uria, PM 
1997 
1 
Fuel
ISSN: 0016-2361
EISSN: 1873-7153 
ELSEVIER SCI LTD 
OXFORD 
76 
13 
1309-1313 
English 
WOS:A1997YJ19700018 
Special CoMo/Al2O3 catalysts were prepared for testing in coal liquefaction: a conventional CoMo/Al2O3 catalyst, one containing Zn as a second promoter and one having the alumina acidified with fluorine. Their activities were compared with that of red mud. The experiments were conducted in a stirred autoclave with a subbituminous coal and solvent (tetralin, anthracene oil or creosote oil) at 425 degrees C and 17 MPa. The liquefaction products were fractioned into oils, asphaltenes and preasphaltenes with pentane, toluene and THF. The Co(Zn)Mo/Al2O3 catalysts have far higher activities than red mud. Zn and fluorine have beneficial effects on the catalyst activity. Coal tar distillates give higher conversions and oil + gas yields than tetralin when the prepared catalysts are used. (C) 1997 Elsevier Science Ltd. 
coal liquefaction; CoMo catalysts; subbituminous coal 
UK National Meeting on Coal Research and Its Applications 
LOUGHBOROUGH, ENGLAND