2010
DOI: 10.1007/s10973-010-1032-1
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The kinetics of gasification of char derived from sewage sludge

Abstract: Gasification of char derived from sewage sludge was studied under different oxidizing atmospheres containing CO 2 , O 2 or H 2 O. The gasification tests were carried out in thermobalance at different temperatures and oxidizing reagent concentrations. The most efficient were the gaseous mixtures containing oxygen. The reaction took place at temperature 400-500°C, whilst in the case of CO 2 and steam much higher temperatures (700-900°C) were necessary to complete the conversion. Two rate models for gas-solid rea… Show more

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Cited by 47 publications
(28 citation statements)
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“…Based on expression (21) and for the coordinate a = a m Eq. 27 will also be valid by substitution of k by a m :…”
Section: Resultsmentioning
confidence: 99%
See 1 more Smart Citation
“…Based on expression (21) and for the coordinate a = a m Eq. 27 will also be valid by substitution of k by a m :…”
Section: Resultsmentioning
confidence: 99%
“…The other form of the mass integral most often encountered is the g(a s ) = 1-(1 -a s ) 1/3 expression, according to the simplified Shrinking Core Model [20,21].…”
Section: Solid Phase Analysismentioning
confidence: 99%
“…Known also as the grain model, this model stipulates that reactions must occur at the surface of the particle (Zou et al 2007;Nowicki et al 2011). Taking into account the effect of particle size and mass transfer during char-gas reactions, SCM is an appropriate candidate for studying the kinetics of such reactions (Zheng and Morey 2014).…”
Section: Shrinking-core Model (Scm)mentioning
confidence: 99%
“…Conhecer os valores de e 0 de uma reação é muito importante para diversas aplicações, como a interpretação dos mecanismos da reação, do fenômeno catalítico e do comportamento molecular, o desenvolvimento de projetos e a otimização dos parâmetros de gaseificadores e também para a modelagem e a simulação dos reatores (Nowicki et al, 2011).…”
Section: Modelos Cinéticosunclassified