A case study on microwave pyrolysis of waste tyres and cocoa pod husk; effect on quantity and quality of utilizable products

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27710%2F22%3A10248287" target="_blank" >RIV/61989100:27710/22:10248287 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/61989100:27360/22:10248287

Výsledek na webu

<a href="https://doi.org/10.1016/j.jece.2021.106917" target="_blank" >https://doi.org/10.1016/j.jece.2021.106917</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.jece.2021.106917" target="_blank" >10.1016/j.jece.2021.106917</a>

Jazyk výsledku

angličtina

Název v původním jazyce

A case study on microwave pyrolysis of waste tyres and cocoa pod husk; effect on quantity and quality of utilizable products

Popis výsledku v původním jazyce

Disposal of huge amounts of diverse wastes for reduced costs accompanied with gaining of energy and valuable chemicals is an eager topic in waste-to-energy and fuel business. Microwave pyrolysis is a thermochemical route providing such benefits. Waste scrap tyres (ST) and cocoa pod husk (CPH) as polymer and biomass representatives were pyrolyzed in microwave reactor at 440 W power for 30 min. Quantity and quality of pyrolysis products (gas, oil, and carbon black) were investigated. It was revealed, while set microwave pyrolysis conditions are sufficient for maximum decomposition of ST to pyrolysis products, it is necessary to optimize them for CPH. The gas produced by microwave pyrolysis of ST contains more H2 and CH4 than from conventional pyrolysis, thus, microwave pyrolysis is an effective tool for production of a fuel gas. The oil obtained by ST microwave pyrolysis is a complex mixture of mostly nonpolar aromatic compounds (toluene, benzene, limonene, styrene, o-xylene), while the oil obtained by CPH microwave pyrolysis contains mainly p-cresol, phenol and its derivatives. The ST-derived carbon black shows a well-established large-volume mesoporous-macroporous structure. The CPH-derived carbon black is a low-volume macroporous material with very well-developed microporosity. A higher gross calorific value of microwave ST-derived carbon black in comparison to conventionally prepared one is caused by its higher graphitization rate. Since the surface of ST-derived carbon black is more polar than CPH-derived one and with respect to chemical purity, it could be more suitable adsorbent for polar volatile organic compounds from gaseous emissions. It is necessary to develop a microporosity in ST-derived carbon black.

Název v anglickém jazyce

A case study on microwave pyrolysis of waste tyres and cocoa pod husk; effect on quantity and quality of utilizable products

Popis výsledku anglicky

Disposal of huge amounts of diverse wastes for reduced costs accompanied with gaining of energy and valuable chemicals is an eager topic in waste-to-energy and fuel business. Microwave pyrolysis is a thermochemical route providing such benefits. Waste scrap tyres (ST) and cocoa pod husk (CPH) as polymer and biomass representatives were pyrolyzed in microwave reactor at 440 W power for 30 min. Quantity and quality of pyrolysis products (gas, oil, and carbon black) were investigated. It was revealed, while set microwave pyrolysis conditions are sufficient for maximum decomposition of ST to pyrolysis products, it is necessary to optimize them for CPH. The gas produced by microwave pyrolysis of ST contains more H2 and CH4 than from conventional pyrolysis, thus, microwave pyrolysis is an effective tool for production of a fuel gas. The oil obtained by ST microwave pyrolysis is a complex mixture of mostly nonpolar aromatic compounds (toluene, benzene, limonene, styrene, o-xylene), while the oil obtained by CPH microwave pyrolysis contains mainly p-cresol, phenol and its derivatives. The ST-derived carbon black shows a well-established large-volume mesoporous-macroporous structure. The CPH-derived carbon black is a low-volume macroporous material with very well-developed microporosity. A higher gross calorific value of microwave ST-derived carbon black in comparison to conventionally prepared one is caused by its higher graphitization rate. Since the surface of ST-derived carbon black is more polar than CPH-derived one and with respect to chemical purity, it could be more suitable adsorbent for polar volatile organic compounds from gaseous emissions. It is necessary to develop a microporosity in ST-derived carbon black.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10400 - Chemical sciences

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

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

Rok uplatnění

2022

Kód důvěrnosti údajů

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

Název periodika

Journal of Environmental Chemical Engineering

ISSN

2213-3437

e-ISSN

—

Svazek periodika

10

Číslo periodika v rámci svazku

1

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

12

Strana od-do

1-12

Kód UT WoS článku

000730999300008

EID výsledku v databázi Scopus

—