PRODUCTION AND ANALYSIS OF CRUDE BIOCHAR PRODUCED FROM WHEAT BRAN

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26310%2F21%3APU143534" target="_blank" >RIV/00216305:26310/21:PU143534 - isvavai.cz</a>

Result on the web

<a href="https://www.icct.cz/cs/Amca-ICCT/media/content/2021/proceedings/ICCT2021-Proceedings.pdf" target="_blank" >https://www.icct.cz/cs/Amca-ICCT/media/content/2021/proceedings/ICCT2021-Proceedings.pdf</a>

DOI - Digital Object Identifier

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Result language

angličtina

Original language name

PRODUCTION AND ANALYSIS OF CRUDE BIOCHAR PRODUCED FROM WHEAT BRAN

Original language description

Biochar is solid material mainly produced by the pyrolysis of biomass. It is generally a carbonated material with high porosity and a high level of aromatization. Thanks to its properties, biochar is used in various industries, such as power production, agriculture, wastewater treatment, construction, pharmacy and many others. A significant advantage of biochar production is that it is often produced from agricultural and food waste, which corresponds to circular economics's philosophy. The physicochemical properties of biochar strongly depend on the feedstock type. An interesting raw material with potential for the production of biochar is wheat bran, a byproduct of milling, which falls into lignocellulosic biomass. The main aspect of this work was developing a pyrolysis procedure and determining the products' physicochemical properties. The pyrolysis was performed in a furnace under an anaerobic nitrogen environment. Three pyrolysis temperatures were tested – 300, 400 and 500°C. Characterization of biochar was proceeded according to the European biochar certificate (EBC), which included size distribution analysis, SEM, BET surface area analysis, elemental analysis, FTIR spectral analysis and analysis of PAHs. FTIR, elemental analysis and SEM proved that 500 °C pyrolysis for 3 hours was optimal to produce well-carbonized biochar with the optimal structure. Yield of the process was 290,2 g of biochar from 1 kg of bran. Biochar contained a significant amount of K (45.7 ± 0.7 μg/g), and P (4.8 ± 0.6 μg/g) and did not exceed the allowed limit of total PAHs (2.28 μg/g) set by European biochar certificate. The surface of the biochar significantly raised with the pyrolysis temperature with 3.4 m2/g for 500°C. Biochar meets the EBC Class I criteria in terms of the content of potentially toxic metals and PAHs.

Czech name

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Czech description

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Type

D - Article in proceedings

CEP classification

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OECD FORD branch

10700 - Other natural sciences

Project

<a href="/en/project/FW02020135" target="_blank" >FW02020135: Verification of biorefinery concept for utilization of bran</a><br>

Continuities

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

Publication year

2021

Confidentiality

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

Article name in the collection

Proceedings of the 8th International Conference on Chemical Technology

ISBN

978-80-88307-08-2

ISSN

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e-ISSN

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Number of pages

5

Pages from-to

304-308

Publisher name

Neuveden

Place of publication

neuveden

Event location

Mikulov

Event date

May 3, 2021

Type of event by nationality

CST - Celostátní akce

UT code for WoS article

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