Biofuels from spent tea leaves and tea bags

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27350%2F23%3A10254380" target="_blank" >RIV/61989100:27350/23:10254380 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/61989100:27230/23:10254380 RIV/61989100:27730/23:10254380

Výsledek na webu

<a href="https://www.dubrovnik2023.sdewes.org/" target="_blank" >https://www.dubrovnik2023.sdewes.org/</a>

DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Biofuels from spent tea leaves and tea bags

Popis výsledku v původním jazyce

Spent tea leaves are generated after the extraction of liquor from processed tea. It is an underutilized waste full of essential amino acids, polyphenols, alkaloids or minerals produced in large quantities, for example in tea shops, hospitals, school canteens, etc. Therefore, the aim of this study is to characterize this waste, process it into pellets and subsequently increase the energy potential by torrefaction. The influence of the tea packaging method, i.e. tea leaves grounds or tea bag grounds, was also taken into account. Various types of tea waste were processed on a pilot plant pelletization press and torrefaction stand. The prepared pellets were characterized by mechanical parameters such as pellet durability index, wettability index of the pellets, their water moisture resistance, hardness or specific and bulk density. Furthermore, pellet energy parameters such as heat of combustion, calorific value or elemental analysis were compared. The first results show that the non-torrefied pellets have a combustion heat on average of 18 KJ.kg-1 and the mechanical parameters meet the normative requirements. The study shows insight into one of the possible energetic uses of tea grounds of different tea species by processing them into torrefied pellets as biofuel.

Název v anglickém jazyce

Biofuels from spent tea leaves and tea bags

Popis výsledku anglicky

Spent tea leaves are generated after the extraction of liquor from processed tea. It is an underutilized waste full of essential amino acids, polyphenols, alkaloids or minerals produced in large quantities, for example in tea shops, hospitals, school canteens, etc. Therefore, the aim of this study is to characterize this waste, process it into pellets and subsequently increase the energy potential by torrefaction. The influence of the tea packaging method, i.e. tea leaves grounds or tea bag grounds, was also taken into account. Various types of tea waste were processed on a pilot plant pelletization press and torrefaction stand. The prepared pellets were characterized by mechanical parameters such as pellet durability index, wettability index of the pellets, their water moisture resistance, hardness or specific and bulk density. Furthermore, pellet energy parameters such as heat of combustion, calorific value or elemental analysis were compared. The first results show that the non-torrefied pellets have a combustion heat on average of 18 KJ.kg-1 and the mechanical parameters meet the normative requirements. The study shows insight into one of the possible energetic uses of tea grounds of different tea species by processing them into torrefied pellets as biofuel.

Druh

D - Stať ve sborníku

CEP obor

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OECD FORD obor

20400 - Chemical engineering

Projekt

<a href="/cs/project/TN02000025" target="_blank" >TN02000025: Národní centrum pro energetiku II</a><br>

Návaznosti

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

Rok uplatnění

2023

Kód důvěrnosti údajů

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

Název statě ve sborníku

Renewable energy. Volume 196

ISBN

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ISSN

0960-1481

e-ISSN

1879-0682

Počet stran výsledku

1

Strana od-do

272

Název nakladatele

Pergamon - Elsevier Science, Ltd.

Místo vydání

Oxford

Místo konání akce

Dubrovník

Datum konání akce

10. 10. 2021

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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