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Slow-rate devolatilization of municipal sewage sludge and texture of residual solids.
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SYSNO ASEP 0544243 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Slow-rate devolatilization of municipal sewage sludge and texture of residual solids. Tvůrce(i) Hartman, Miloslav (UCHP-M) RID, ORCID, SAI
Čech, B. (CZ)
Pohořelý, Michael (UCHP-M) RID, ORCID, SAI
Svoboda, Karel (UCHP-M) RID, ORCID, SAI
Šyc, Michal (UCHP-M) RID, SAI, ORCIDZdroj.dok. Korean Journal of Chemical Engineering. - : Korean Institute of Chemical Engineers - ISSN 0256-1115
Roč. 38, č. 10 (2021), s. 2072-2081Poč.str. 10 s. Jazyk dok. eng - angličtina Země vyd. KR - Korejská republika Klíč. slova devolatilization ; reaction kinetics ; sewage sludge ; reaction kinetics Vědní obor RIV CI - Průmyslová chemie a chemické inženýrství Obor OECD Chemical process engineering CEP QK21020022 GA MZe - Ministerstvo zemědělství Způsob publikování Omezený přístup Institucionální podpora UCHP-M - RVO:67985858 UT WOS 000671772100001 EID SCOPUS 85110367065 DOI 10.1007/s11814-021-0847-8 Anotace Ash-rich sludge samples originating in four large plants were analyzed and employed to explore primarily the kinetics and the chemistry of devolatilization. A gravimetric, slowly increasing-temperature method was used in the range 298–1,123 K in a milieu of nitrogen. As an intricate combination of numerous (bio)organic and inorganic compounds, the dry sludge commences devolatilizing at approximately 418 K. The bulk of organic matter is released up to 823 K, at the rate becoming very slow thereafter. Basic constituents of the product gas are CO2, CO, H2, and CH4 with undesired nitrogenous, sulfurous, and chloro compounds. The residual solids contain significant amounts of organic matter/carbon and, on account of their favorable textural characteristics, they can be viewed as promising sorbents or catalysts. Kinetic triad was inferred from the experimental data: the model is well-capable of simulating the process of devolatilization and can be used for design considerations. An explicit equation, based upon a tractable approximation to the temperature integral (for [E/(RT)]≥0.1), has been verified and proposed for predicting the maximum reaction rate temperature. Remarkable differences in thermal behavior were explored in detail between the sludge and the alkali bicarbonates. Pracoviště Ústav chemických procesů Kontakt Eva Jirsová, jirsova@icpf.cas.cz, Tel.: 220 390 227 Rok sběru 2022 Elektronická adresa http://hdl.handle.net/11104/0321886
Počet záznamů: 1