Research of oxidation and pyrolysis processes of brewing industry wastes

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Oxidation and pyrolysis processes of brewing industry waste have been researched. Elemental composition and technical characteristics of the investigated sample were determined with the help of elemental analyzer and standard methods. Thermal transformation of the sample was performed by the method of thermogravimetric analysis at the heating rate of 10 °C/min up to the maximum temperature of 700 °C. Air and argon with flow rate of 150 ml/min were used as blown gas. Thermal analysis data (DTG curves) were used to determine the process stages which correspond to mono- or bimodal release of volatile compounds and oxidation of the resulting carbon residue (for oxidation mode). The characteristic temperatures of the beginning and end of oxidation (Ti=242 °C and Tf=612 °C) and pyrolysis (Td=255 °C and Tf=460 °C) as well as the reaction time and rate were determined. The qualitative analysis of gas-phase products of thermal conversion of the sample was performed by the mass spectrometry method. The activation energy values of the processes under consideration were calculated by the Coats-Redfern method and their values were about 19 kJ/mol.

Original languageEnglish
Title of host publicationThermophysical Basis of Energy Technologies, TBET 2020
EditorsGeniy Kuznetsov, Dmitry Feoktistov, Evgeniya Orlova
PublisherAmerican Institute of Physics Inc.
ISBN (Electronic)9780735440814
DOIs
Publication statusPublished - 8 Mar 2021
Event9th All-Russian Scientific Conference with International Participation on Thermophysical Basis of Energy Technologies, TBET 2020 - Tomsk, Russian Federation
Duration: 28 Oct 202030 Oct 2020

Publication series

NameAIP Conference Proceedings
Volume2337
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Conference

Conference9th All-Russian Scientific Conference with International Participation on Thermophysical Basis of Energy Technologies, TBET 2020
CountryRussian Federation
CityTomsk
Period28.10.2030.10.20

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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