โ Scribed by Yoichi Kodera; Koji Ukegawa; Yutaka Mito; Masashi Komoto; Etsuro Ishikawa; Tetsuo Nakayama
No coin nor oath required. For personal study only.
๐ SIMILAR VOLUMES
A single suspended-droplet technique has been used to study droplet combustion of a range of solvent-refined coal extracts in a furnace at 850ยฐC. The small particles of extract are solid at room temperature but they rapidly liquefy on exposure to the hot furnace environment, permitting the size and
1260 0 0 (:rent \Vcstrm 1Lly. 6% Ciunriititeed ... 600 0 0 (;!gut Xorllicrn Rlr. 0 -1017 5 I1 pllonc, untl Slllldr)' cspenscs 161 10 6 ., Imv LCstu iind otlirr espcnses in eonnectlon with Trnnsfcr o f Stocks. Bc.
An investigation has been made into the changes which take place in porosity when coals are partially dissolved in specific solvents. Pore structures were determined by: gas adsorption (N2 at 77 K and CO2 at 195 K), densities in mercury and helium, and mercury porosimetry. Six British coals (79.7-88
Chloroform extraction for Yubari coal both raw and preheated at 300, 350 and 400ยฐC was carried out at various temperatures. The following results were obtained (1) 50 cm3 of chloroform per 1 g of sample is sufficient to extract almost completely, whatever the extraction tempetature, the chloroform-s