Solid fuels (sources. winning, properties) both fundamrntal studies of particle hrcakage and mineral texture. as well a\ industrial work aimed at improving comminution tcchnol. The comminutlon re\carch program i*, de\crihed. 97100016 Continuity of kinetics between sub-and supercritical regimes in the oxidation of a high-volatile solid substrate .Irme. J. C. (3, 01.. Frrcl, Dee 1996. 7.5. (I-5), 1733-1736. The experiment\ conducted for this article involved peat samples being \uhjectrd to oven experiment\ spanning,a considerable temperature range. \omt' re\ultine in ignition and some in tailurr to ignite. Heat release rate> tar the two dtsplay a temperature dependence drscrihable hy, a single pair ot Arrhenius parameter\ in spite of significantly greatrr volatlles release in \ome experiment\ than in others. Applicability of the Frank-Kamenet\kii treatment to \uch materials is d~acuascd. 97/00017 Devolatization and combustion of single particles of an Italian lignite Vltolr). S. and Glovannini. ('., R/I,. ('oolh[r.~/., IOYh. 5% (2). 47-54. (In It;llIan) Present< data for the &volatilization and combustion of $ingle particles of an Italian lignite for different particle? diameters and air flow temperature. ,A IO\ volatile c,mtent bituminous Polish coal wa\ studied for cclmparison. 97/00018 Devolatilization studies of single coal particles at high heating rates (carbon dioxide laser pyrolysis, heat transfer) Maswadch. W. M.. lYY6. I78 pp., Avail. Univ. Microfilms lnt., Order No. DAYf>2lY73. From III\. ilhtrn /?I/., H I'JYh. 57. (3). 1462. 97/00019 Effect of acetylation on non-covalent interaction of coals Mashlmo. I<. ('I oi.. .s~~Xltrr,i Kcr@/k1r Ktrrx' Hrr/'[?,'o Korlhlrn,lfi~, I YY3, 30, Y4-Y7. (In Japanese) Pyrldlne or chloroform was used tt) rxtl;act demineralized and acetylated coal. The effect i)f acetylation on non-covalent interactions of coals was Investigated from the eutractabilitiu\ and the change\ in yield for each molecular weight distribution.