Biofuels from spent tea leaves and tea bags

Result code in 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>
Alternative codes found
RIV/61989100:27230/23:10254380 RIV/61989100:27730/23:10254380
Result on the web
<a href="https://www.dubrovnik2023.sdewes.org/" target="_blank" >https://www.dubrovnik2023.sdewes.org/</a>
DOI - Digital Object Identifier
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Result language
angličtina
Original language name
Biofuels from spent tea leaves and tea bags
Original language description
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.
Czech name
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Czech description
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Project
<a href="/en/project/TN02000025" target="_blank" >TN02000025: National Centre for Energy II</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2023
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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