%0 Journal Article
%T Co-liquefaction of Coal and Used Tire in Supercritical Water
%A Kwanruthai Onsri
%A Pattarapan Prasassarakich
%A Somkiat Ngamprasertsith
%J Energy and Power Engineering
%P 95-102
%@ 1947-3818
%D 2010
%I Scientific Research Publishing
%R 10.4236/epe.2010.22014
%X The co-liquefaction of lignite coal and used tire was performed in a 250-ml batch reactor, in supercritical water under a nitrogen atmosphere to investigate the effects of temperature (380-440¡æ), water/feedstock ratio (4/1-10/1 (wt./wt.)) and the % used tire content in the feedstock (0-100 wt.%) on the conversion efficiency, liquid yield and oil composition attained. The maximum conversion and oil yield were 67 and 50%, respectively, obtained at 400¡æ at 1 min, with water/feedstock ratio of 10/1 and 80% used tire content. The distillation characteristics of the oil products, analyzed by simulated distillation gas chromatography, revealed that the oil composition depended significantly on the reaction temperature. The co-liquefaction of coal and used tire yielded a synergistically increased level of oil production. Moreover, the total conversion level obtained with co-liquefaction alone was almost equal to those obtained in the presence of either Fe2O3 or NiMo as catalysts, under the same conditions. Therefore, supercritical water is a good medium for the dissolution of the volatile matter from a coal and used tire matrix.
%K Co-liquefaction
%K Coal
%K Used Tire
%K Supercritical Water
%U http://www.scirp.org/journal/PaperInformation.aspx?PaperID=1824