Hydrothermal Upgrading of Industrial Hemp Waste: Effect of Cultivars and Fibre Sheath Presence on Bio-Oil Yield

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60460709%3A41210%2F25%3A102404" target="_blank" >RIV/60460709:41210/25:102404 - isvavai.cz</a>

Result on the web

<a href="https://www.mdpi.com/2073-4344/15/10/917" target="_blank" >https://www.mdpi.com/2073-4344/15/10/917</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.3390/catal15100917" target="_blank" >10.3390/catal15100917</a>

Result language

angličtina

Original language name

Hydrothermal Upgrading of Industrial Hemp Waste: Effect of Cultivars and Fibre Sheath Presence on Bio-Oil Yield

Original language description

Industrial hemp is an abundant agricultural residue with potential for sustainable fuel production. In this work, stalks of two hemp cultivars (Futura-75 and Fedora-17), considered either before or after fibre extraction (with and without fibre sheath), were processed by hydrothermal upgrading (HTU) to obtain bio-oil. A total of twelve autoclave reactions were conducted using 10 g of biomass and 2–4 g of potassium carbonate as a catalyst. The resulting bio-oils exhibited significantly reduced oxygen content (26–36%) compared to the raw feedstock (47%) and achieved higher heating values of 25.9–32.1 MJ/kg versus 17.7–17.9 MJ/kg for the untreated biomass. Fractionation analysis revealed that the main products were high-boiling (>360 °C) and diesel-range fractions, while overall yields ranged from 21.3% to 32.8%. The highest yield was obtained from Fedora-17 with the fibre sheath and 2 g of catalyst. Overall, the study highlights the potential of hemp waste as a renewable feedstock for liquid fuel production and demonstrates how fibre content and cultivar type influence both yield and product quality.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

20704 - Energy and fuels

Project

—

Continuities

S - Specificky vyzkum na vysokych skolach

Publication year

2025

Confidentiality

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

Name of the periodical

Catalysts

ISSN

2073-4344

e-ISSN

2073-4344

Volume of the periodical

15

Issue of the periodical within the volume

10

Country of publishing house

CH - SWITZERLAND

Number of pages

14

Pages from-to

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UT code for WoS article

001604430300001

EID of the result in the Scopus database

2-s2.0-105020020016