Torrefaction Process of Needles, Cones and Bark of Spruce (Picea Abies (L.) Karst) and Pine (Pinus Sylvestris L.)

Butnaru, Elena; Brebu, Mihai

Elena Butnaru, Mihai Brebu

Torrefaction Process of Needles, Cones and Bark of Spruce (Picea Abies (L.) Karst) and Pine (Pinus Sylvestris L.)

Abstract:

The actual problems related with the depletion of fossil resources and the accentuated increase of global warming requires rapid shift to renewable and eco-friendly alternatives. Biomass forestry residues are valuable candidates that can be used as sustainable resources. Torrefaction is a mild thermal treatment that can convert biomass into value-added liquid and solid products. Here we performed torrefaction at 250 °C of needles, cones and bark from spruce and pine, as representative coniferous species in Romanian Carpathians. The elemental analysis of solid materials was performed and the calculated O/C and H/C atomic ratios showed that torrefaction placed the solid materials in the region of coals, close to the origin of the Van Krevelen diagram. The calorific values were improved, leading to higher energy density. The energy yield was close to the unit, indicating that torrefaction is a highly efficient process. The liquid products had complex composition, with compounds coming from the compositional and structural changes in the forestry residues. Terpenes are the dominating compounds from volatile extractives. Furans, from which furfural and 5-methylfurfural were the main compounds produced from degradation of hemicelluloses, while phenol derivatives were produced from lignin. Exploratory data analysis revealed diferences between samples from spruce and pine but also between needles, cones and bark.

Keywords:
forestry residues; coniferous waste; thermal treatment; energy density; GC-MSD

Issue: 2022, Volume 73, Issue 3

Pages: 28-37

Publication date: 2022/7/29

https://doi.org/10.37358/RC.22.3.8532

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Citation Styles

Cite this article as:
BUTNARU, E., BREBU, M., Torrefaction Process of Needles, Cones and Bark of Spruce (Picea Abies (L.) Karst) and Pine (Pinus Sylvestris L.), Rev. Chim., 73(3), 2022, 28-37.

Vancouver
Butnaru E, Brebu M. Torrefaction Process of Needles, Cones and Bark of Spruce (Picea Abies (L.) Karst) and Pine (Pinus Sylvestris L.). Rev. Chim.[internet]. 2022 Mar;73(3):28-37. Available from: https://doi.org/10.37358/RC.22.3.8532

APA 6th edition
Butnaru, E., Brebu, M. (2022). Torrefaction Process of Needles, Cones and Bark of Spruce (Picea Abies (L.) Karst) and Pine (Pinus Sylvestris L.). Revista de Chimie, 73(3), 28-37. https://doi.org/10.37358/RC.22.3.8532

Harvard
Butnaru, E., Brebu, M. (2022). 'Torrefaction Process of Needles, Cones and Bark of Spruce (Picea Abies (L.) Karst) and Pine (Pinus Sylvestris L.)', Revista de Chimie, 73(3), pp. 28-37. https://doi.org/10.37358/RC.22.3.8532

IEEE
E. Butnaru, M. Brebu, "Torrefaction Process of Needles, Cones and Bark of Spruce (Picea Abies (L.) Karst) and Pine (Pinus Sylvestris L.)". Revista de Chimie, vol. 73, no. 3, pp. 28-37, 2022. [online]. https://doi.org/10.37358/RC.22.3.8532

Text
Elena Butnaru, Mihai Brebu,
Torrefaction Process of Needles, Cones and Bark of Spruce (Picea Abies (L.) Karst) and Pine (Pinus Sylvestris L.),
Revista de Chimie,
Volume 73, Issue 3,
2022,
Pages 28-37,
ISSN 2668-8212,
https://doi.org/10.37358/RC.22.3.8532.
(https://revistadechimie.ro/Articles.asp?ID=8532)
Keywords: forestry residues; coniferous waste; thermal treatment; energy density; GC-MSD

RIS
TY - JOUR
T1 - Torrefaction Process of Needles, Cones and Bark of Spruce (Picea Abies (L.) Karst) and Pine (Pinus Sylvestris L.)
A1 - Butnaru, Elena
A2 - Brebu, Mihai
JF - Revista de Chimie
JO - Rev. Chim.
PB - Revista de Chimie SRL
SN - 2668-8212
Y1 - 2022
VL - 73
IS - 3
SP - 28
EP - 37
UR - https://doi.org/10.37358/RC.22.3.8532
KW - forestry residues
KW - coniferous waste
KW - thermal treatment
KW - energy density
KW - GC-MSD
ER -

BibTex
@article{RevCh2022P28,
author = {Butnaru Elena and Brebu Mihai},
title = {Torrefaction Process of Needles, Cones and Bark of Spruce (Picea Abies (L.) Karst) and Pine (Pinus Sylvestris L.)},
journal = {Revista de Chimie},
volume = {73},
number = {3},
pages = {28-37},
year = {2022},
issn = {2668-8212},
doi = {https://doi.org/10.37358/RC.22.3.8532},
url = {https://revistadechimie.ro/Articles.asp?ID=8532}
}

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