"Documenta Geonica 2006" . . . "5"^^ . "STUDY OF THE COAL OXIDATION TEMPERATURE DYNAMICS"@en . "6"^^ . "STUDIUM TEPLOTN\u00CD DYNAMIKY PO\u010C\u00C1TE\u010CN\u00CD F\u00C1ZE OXIDA\u010CN\u00CDHO PROCESU UHL\u00CD"@cs . . "COAL OXIDATION; TEMPERATURE DYNAMICS; THRESHOLD TEMPERATURE"@en . "Taraba, Boleslav" . "502211" . "Metody pr\u016Ftokov\u00E9 kalorimetrie, tepeln\u00E9 oxidace, inverzn\u00ED plynov\u00E9 chromatografie a termogravimetrick\u00E9 anal\u00FDzy byly vyu\u017Eity k postihnut\u00ED teplotn\u00ED dynamiky oxidace t\u0159\u00ED vzork\u016F \u010Dern\u00E9ho uhl\u00ED plynn\u00FDm kysl\u00EDkem. Z vynesen\u00FDch pr\u016Fb\u011Bh\u016F arrheniovsk\u00FDch z\u00E1vislost\u00ED (ln(rychlost oxidace) versus 1/teplota) byly zji\u0161t\u011Bny hodnoty kritick\u00E9 teploty samovzn\u00EDcen\u00ED Tks, jako\u017Eto teplotn\u00ED \u00FArovn\u011B, kdy reak\u010Dn\u00ED rychlost zlomov\u011B vzr\u016Fst\u00E1 a oxida\u010Dn\u00ED proces nab\u00FDv\u00E1 dynami\u010Dt\u011Bj\u0161\u00ED charakter. Jako kvantitativn\u00ED ukazatel\u00E9 teplotn\u00ED dynamiky oxida\u010Dn\u00ED reakce sledovan\u00FDch vzork\u016F byly z pr\u016Fb\u011Bh\u016F arrheniovsk\u00FDch z\u00E1vislost\u00ED vy\u010D\u00EDsleny kritick\u00E9 teploty samovzn\u00EDcen\u00ED Tks a aktiva\u010Dn\u00ED energie E. Na z\u00E1klad\u011B studia zm\u011Bn por\u00E9zn\u00EDho syst\u00E9mu a strukturn\u00EDch parametr\u016F uhl\u00ED pak bylo zji\u0161t\u011Bno, \u017Ee zlomov\u00FD n\u00E1r\u016Fst oxida\u010Dn\u00ED rychlosti p\u0159i hodnot\u011B Tks souvis\u00ED se zm\u011Bnou ?chemismu? oxida\u010Dn\u00EDho procesu p\u0159i t\u00E9to teplotn\u00ED \u00FArovni." . "Janek, Ji\u0159\u00ED" . "Temperature dependence of coal oxidation rate was investigated between 30\u00B0C and 160\u00B0C using air flow reactor and/or methods of inverse gas chromatography, pulse flow calorimetry and thermogravimetry. As a parameter quantifying the temperature dynamics of coal oxidation, values of activation energy E were calculated from Arrhenius plots (Ln (oxidation rate) versus Reciprocal temperature). These E values were found to vary between 28 ? 57 kJ/mol. Moreover, non-linear course of the Arrhenius plots was confirmed with breaks at temperatures between 45\u00B0C and 120\u00B0C. The break was denoted as threshold temperature Tth and its value indicates a temperature beyond which the coal oxidation gains more intense disposition. Based on the experimental results, reason of the change in coal oxidation process at the Tth temperature was revealed to be chemical in character."@en . "STUDY OF THE COAL OXIDATION TEMPERATURE DYNAMICS"@en . . . . . . . . . "\u00DAstav geoniky AV \u010CR" . "P(AACBU29-03), P(GA105/03/0538), P(GA105/06/0630), S, Z(AV0Z30860518)" . "Slov\u00E1k, V\u00E1clav" . . "Peter, Rudolf" . "2006-10-11+02:00"^^ . . . . "Metody pr\u016Ftokov\u00E9 kalorimetrie, tepeln\u00E9 oxidace, inverzn\u00ED plynov\u00E9 chromatografie a termogravimetrick\u00E9 anal\u00FDzy byly vyu\u017Eity k postihnut\u00ED teplotn\u00ED dynamiky oxidace t\u0159\u00ED vzork\u016F \u010Dern\u00E9ho uhl\u00ED plynn\u00FDm kysl\u00EDkem. Z vynesen\u00FDch pr\u016Fb\u011Bh\u016F arrheniovsk\u00FDch z\u00E1vislost\u00ED (ln(rychlost oxidace) versus 1/teplota) byly zji\u0161t\u011Bny hodnoty kritick\u00E9 teploty samovzn\u00EDcen\u00ED Tks, jako\u017Eto teplotn\u00ED \u00FArovn\u011B, kdy reak\u010Dn\u00ED rychlost zlomov\u011B vzr\u016Fst\u00E1 a oxida\u010Dn\u00ED proces nab\u00FDv\u00E1 dynami\u010Dt\u011Bj\u0161\u00ED charakter. Jako kvantitativn\u00ED ukazatel\u00E9 teplotn\u00ED dynamiky oxida\u010Dn\u00ED reakce sledovan\u00FDch vzork\u016F byly z pr\u016Fb\u011Bh\u016F arrheniovsk\u00FDch z\u00E1vislost\u00ED vy\u010D\u00EDsleny kritick\u00E9 teploty samovzn\u00EDcen\u00ED Tks a aktiva\u010Dn\u00ED energie E. Na z\u00E1klad\u011B studia zm\u011Bn por\u00E9zn\u00EDho syst\u00E9mu a strukturn\u00EDch parametr\u016F uhl\u00ED pak bylo zji\u0161t\u011Bno, \u017Ee zlomov\u00FD n\u00E1r\u016Fst oxida\u010Dn\u00ED rychlosti p\u0159i hodnot\u011B Tks souvis\u00ED se zm\u011Bnou ?chemismu? oxida\u010Dn\u00EDho procesu p\u0159i t\u00E9to teplotn\u00ED \u00FArovni."@cs . "Ostrava" . . "RIV/61988987:17310/06:A1000H15!RIV10-MSM-17310___" . . "[523F6374359A]" . . . "STUDIUM TEPLOTN\u00CD DYNAMIKY PO\u010C\u00C1TE\u010CN\u00CD F\u00C1ZE OXIDA\u010CN\u00CDHO PROCESU UHL\u00CD" . "3"^^ . "80-86407-10-1" . . . "Du\u0161kov\u00E1, Ane\u017Eka" . "\u00DAstav Geoniky AV \u010CR" . "STUDIUM TEPLOTN\u00CD DYNAMIKY PO\u010C\u00C1TE\u010CN\u00CD F\u00C1ZE OXIDA\u010CN\u00CDHO PROCESU UHL\u00CD" . "17310" . "RIV/61988987:17310/06:A1000H15" . . "STUDIUM TEPLOTN\u00CD DYNAMIKY PO\u010C\u00C1TE\u010CN\u00CD F\u00C1ZE OXIDA\u010CN\u00CDHO PROCESU UHL\u00CD"@cs . .