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Effect of coal minerals on reaction rates during coal liquefaction. [12 refs]

Conference · · Am. Chem. Soc., Div. Fuel Chem., Prepr.; (United States)
OSTI ID:7350254
The effect of coal minerals in promoting reaction rates during coal liquefaction are studied. Ten different coal minerals as well as coal ash and actual SRC residue from the Wilsonville pilot plant have been individually screened to rate their catalytic activity on hydrogenation and hydrodesulfurization of creosote oil relative to that of a commercial Co-Mo-Al catalyst. In addition the effect of recycling mineral matter from successive batch autoclave runs is also studied. The results show conclusively that certain coal derived minerals increase both hydrogenation and hydrodesulfurization activity during coal liquefaction, with iron compounds being second to the Co-Mo-Al in increasing reaction activity. Most interesting is that filter cake residue from the Wilsonville pilot plant proved to be one of the more active catalytic agents. Also, the physical state (particle size) and agitation as well as chemical composition of mineral matter are shown to influence significantly its effect on reaction rates. In support of the screening results, moreover, continued recycle of mineral matter residue is shown to lead to increased reaction rates.
Research Organization:
Auburn Univ., AL
OSTI ID:
7350254
Conference Information:
Journal Name: Am. Chem. Soc., Div. Fuel Chem., Prepr.; (United States) Journal Volume: 21:5
Country of Publication:
United States
Language:
English