Characterization of hazardous gases evolved from various biomass

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F62243136%3A_____%2F20%3AN0000022" target="_blank" >RIV/62243136:_____/20:N0000022 - isvavai.cz</a>

Result on the web

<a href="https://doi.org/10.1007/s13762-020-03028-w" target="_blank" >https://doi.org/10.1007/s13762-020-03028-w</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/s13762-020-03028-w" target="_blank" >10.1007/s13762-020-03028-w</a>

Result language

angličtina

Original language name

Characterization of hazardous gases evolved from various biomass

Original language description

The utilization of biomass waste by biochar production seems to be an efficient and environmental friendly way of biomass treating. Biochar is produced from biomass by low temperature pyrolysis (torrefaction). In this work, twelve different biomass wastes generated in the Czech Republic has been characterized by thermogravimetric analysis combined with mass spectrometry (TGA-MS). Most of all published works are focused on TGA-MS analysis of evolved hydrocarbon gases or on analysis of condensed liquids. This work is converting focus mainly on inorganic gases produced during pyrolysis, which can be toxic, explosive or corrosive. There is a few or none published works focused on sulfur or chlorine compounds in evolved gas. Some compounds that could be potentially produced with biomass compositions were not detected at all (e.g. H2S). Furthermore, it has been found that temperatures higher than those commonly used in torrefaction (i.e., 400 °C) are needed to produce compounds like H2. From the obtained results it can be also seen that CO2, NH3, NO2, SOx, Cl2 and HCl are mainly produced and their concentration reaches maximum just at this temperature. It has been proved that biomass, which contains sulfur and chlorine, releases SOx and HCl during torrefaction. Sulfur oxides, ammonia and chlorine compounds are strongly corrosive. The real conditions of pyrolysis on industrial scale can thus be adjusted according to the TGA-MS data. These data can be also used for the selection of a biomass, most suitable for pyrolysis, where almost no gases are generated with corrosive effect on the pyrolyser.

Czech name

—

Czech description

—

Type

J_ost - Miscellaneous article in a specialist periodical

CEP classification

—

OECD FORD branch

20400 - Chemical engineering

Project

Result was created during the realization of more than one project. More information in the Projects tab.

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2020

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

International Journal of Environmental Science and Technology

ISSN

1735-1472

e-ISSN

1735-2630

Volume of the periodical

—

Issue of the periodical within the volume

18

Country of publishing house

CH - SWITZERLAND

Number of pages

16

Pages from-to

73-88

UT code for WoS article

—

EID of the result in the Scopus database

—