Catalytic effects of potassium on biomass pyrolysis, combustion and torrefaction
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27350%2F18%3A10239701" target="_blank" >RIV/61989100:27350/18:10239701 - isvavai.cz</a>
Alternative codes found
RIV/61989100:27730/18:10239701
Result on the web
<a href="http://dx.doi.org/10.1016/j.apenergy.2018.10.065" target="_blank" >http://dx.doi.org/10.1016/j.apenergy.2018.10.065</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.apenergy.2018.10.065" target="_blank" >10.1016/j.apenergy.2018.10.065</a>
Alternative languages
Result language
angličtina
Original language name
Catalytic effects of potassium on biomass pyrolysis, combustion and torrefaction
Original language description
Potassium is a natural catalyst in biomass thermochemical conversion and plays an essential role in plant's growth. To figure out the catalytic effects of potassium on the thermochemical behaviors of biomass, the pyrolysis, combustion, and torrefaction characteristics of rubber wood are comprehensively studied using a thermogravimetric analyzer where the biomass is impregnated by potassium carbonate (K2CO3) at different concentrations. The impregnated potassium is clearly exhibited in the spectra of Fourier-transform infrared spectroscopy, while X-ray diffraction indicate that the cellulose crystallinity decreases with increasing the potassium concentration which increases the biomass reactivity in pyrolysis. The ignition temperature of the potassium-impregnated biomass is lowered slightly when compared with the raw biomass; alternatively, its burnout temperature is reduced profoundly, suggesting that the addition of potassium into the biomass can substantially intensify its oxidative reactivity. Considering the treated biomass torrefaction, its cellulose decomposition at 250 oC is intensified, rendering a reduction in the solid yield with increasing potassium concentration. With the same mass loss at 200-300 oC, at least 28% of torrefaction time can be saved for the potassium-impregnated biomass. Accordingly, the catalytic effect of potassium on biomass thermochemical conversion is clearly outlined. Moreover, the produced potassium-rich biochar is conducive to the developments of carbon storage, soil amendment, and negative emissions technologies. (C) 2018 Elsevier Ltd
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
20502 - Paper and wood
Result continuities
Project
<a href="/en/project/EF16_019%2F0000753" target="_blank" >EF16_019/0000753: Research centre for low-carbon energy technologies</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2018
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Applied Energy
ISSN
0306-2619
e-ISSN
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Volume of the periodical
235
Issue of the periodical within the volume
1 February 2019
Country of publishing house
US - UNITED STATES
Number of pages
10
Pages from-to
346-355
UT code for WoS article
000458942800028
EID of the result in the Scopus database
2-s2.0-85056155648