Effect of mechanical harvesting on the chemical composition and combustion behaviour of shrub biomass

Mediavilla, Irene; Fernández, Manuel F.; Barro, Ruth; Borjabad, Elena; Bados, Raquel; Esteban, L.S.

doi:10.1016/j.energy.2020.117928

Cited by 10 publications

(8 citation statements)

References 21 publications

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“…This equipment, powered by a 154 kW tractor (Valtra T194D, Suolahti, Finland), includes a harvester unit that cuts standing shrubs at an approximate height of 15 cm above the ground, and leads vegetation to a cylindrical baling system that compresses the biomass into round big bales. This machine was acquired in 2015 and tested with different shrub vegetation and terrain conditions in the ENERBIOSCRUB project between 2015 and 2018 [ 40 ]. Some tests were carried out in Cistus laurifolius shrublands, a species similar to Cistus ladanifer but with much less content of sticky exudates [ 33 ].…”

Section: Methodsmentioning

confidence: 99%

Influence of the Storage of Cistus ladanifer L. Bales from Mechanised Harvesting on the Essential Oil Yield and Qualitative Composition

Mediavilla¹,

Blázquez

Ruiz

et al. 2021

Molecules

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Cistus ladanifer is a Mediterranean native plant from which valuable products, such as essential oil, are obtained. Manual harvesting of the plants in wild shrublands is usual during short periods of time. Their mechanised harvesting could increase the volume of harvested plants and prevent fires, further storage of the plants collected being necessary. The objective of this work is to study the influence of the storage period of mechanically harvested bales on the essential oil yield and qualitative composition. The harvesting trials were carried out with an adapted commercial harvester baler and the storage of the bales was performed indoors during 1–7 days, 15–30 days and 100–120 days. Afterwards, the bales were crushed (30 mm) and distilled in a 30 litre stainless steel still with saturated steam (0.5 bar). The essential oil components were identified by GC-MS and quantified by GC-FID. The storage of mechanically harvested Cistus ladanifer does not decrease the oil yield of steam distillation on a pilot scale. However, it leads to differences in the quantitative composition of the essential oils, decreasing the total monoterpene compounds content and increasing that of oxygenated sesquiterpenes, especially when the biomass is stored for 100–120 days, without affecting its qualitative composition.

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Section: Methodsmentioning

confidence: 99%

Influence of the Storage of Cistus ladanifer L. Bales from Mechanised Harvesting on the Essential Oil Yield and Qualitative Composition

Mediavilla¹,

Blázquez

Ruiz

et al. 2021

Molecules

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“…(a) Raw biomass (wood chips, bark or nut shells); (b) Upgraded solid biofuels (e.g., pellets, charcoal or torrefied biomass) [4].…”

Section: Introductionmentioning

confidence: 99%

“…Mediavilla et al [4] emphasized the potential of shrub lands as a source of raw material for a bioeconomy-based future, determined the combustion performances of shrub biomass by combustion tests on shrub pellets, and predicted the fuel indices related to emissions, deposit build-up, and ash melting. Shrub biomass was collected both manually and mechanically, and the main properties and chemical composition were established.…”

Section: Introductionmentioning

confidence: 99%

“…For phase analysis of the elements composing the wood biomass, X-ray diffraction (XRD) of microstructure constituents of wood subjected to acid and alkali treatments were presented by Xu et al [26]. Moreover, the XRD method was employed to analyze crystalline phases in the bottom ash collected after the different combustion test [4], cellulose-rich extract pattern detection [15], TiO2-cellulose nanocomposites and TiO2 (anatase) [16], individual fibers related to the production of papers and fiberboards [26], and other forms of solid biomass [25]. The EDS spectrum of TiO2-cellulose nanocomposites was presented by [16].…”

Section: Introductionmentioning

confidence: 99%

“…The EDS spectrum of TiO2-cellulose nanocomposites was presented by [16]. Fourier-transform infrared spectroscopy (FT-IR) is a very useful technique for analyzing the chemical composition of wood [15,25] for cellulose modification degree [16], but also for the determination of the gaseous composition of exhaust gases from combustion tests [4].…”

Section: Introductionmentioning

confidence: 99%

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Effect of mechanical harvesting on the chemical composition and combustion behaviour of shrub biomass

Cited by 10 publications

References 21 publications

Influence of the Storage of Cistus ladanifer L. Bales from Mechanised Harvesting on the Essential Oil Yield and Qualitative Composition

Influence of the Storage of Cistus ladanifer L. Bales from Mechanised Harvesting on the Essential Oil Yield and Qualitative Composition

A Qualitative Assessment of the Specific Woody Biomass of Fruit Trees

Relating features and combustion behavior of biomasses from the Amazonian agroforestry chain

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