Decomposition of Potassium Hydrogen Carbonate: Thermochemistry, Kinetics, and Textural Changes in Solids.
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985858%3A_____%2F19%3A00502095" target="_blank" >RIV/67985858:_____/19:00502095 - isvavai.cz</a>
Alternative codes found
RIV/61989100:27730/19:10241565 RIV/60461373:22320/19:43917768
Result on the web
<a href="http://hdl.handle.net/11104/0294038" target="_blank" >http://hdl.handle.net/11104/0294038</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1021/acs.iecr.8b06151" target="_blank" >10.1021/acs.iecr.8b06151</a>
Alternative languages
Result language
angličtina
Original language name
Decomposition of Potassium Hydrogen Carbonate: Thermochemistry, Kinetics, and Textural Changes in Solids.
Original language description
To determine unbiased rates of the decomposition of KHCO3, slowly increasing- and constant-temperature TGA methods were employed with small, finely ground samples. Such reaction provides a novel, porous, and highly reactive sorbent for noxious and/or malodorous gases. The bicarbonate commences decomposing at 364 K, and the maximum rate of reaction, attained at 421.9 K, amounts to 5.73 × 10–4 1/s. Taking advantage of the Schlömilch function, an Arrhenius-type relationship is developed by an integral method: the activation energy is as large as 141.3 kJ/mol and the order of reaction amounts to 1.145. While the pore volume made by calcination (0.2309 cm3/g) is not affected by temperature at 403–503 K, the mean pore diameter and the grain size augment with increasing temperature. The diagram presented makes it possible to conveniently predict the conditions to attain near-complete conversion of the bicarbonate and minimize undesirable sintering of the nascent carbonate.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
20402 - Chemical process engineering
Result continuities
Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2019
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Industrial and Engineering Chemistry Research
ISSN
0888-5885
e-ISSN
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Volume of the periodical
58
Issue of the periodical within the volume
8
Country of publishing house
US - UNITED STATES
Number of pages
14
Pages from-to
2868-2881
UT code for WoS article
000460199800025
EID of the result in the Scopus database
2-s2.0-85062104267