Fuel characteristics of sewage sludge using thermal treatment

Lee, Joo Yeob; Karki, Sujeeta; Poudel, Jeeban; Lee, Keun Won; Oh, Sea Cheon

doi:10.1007/s10163-019-00830-8

Cited by 2 publications

(3 citation statements)

References 25 publications

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“…This material was then transformed into torrefied pellets so that they had the same dimensional characteristics as the native ones (untreated). The torrefaction process was performed on a small amount of wooden sawdust for each temperature and time [22][23][24][25][26]. During this period, some changes in the sawdust color occurred [27][28][29].…”

Section: Methodsmentioning

confidence: 99%

“…Generally, it was determined that when the degree of torrefaction is increased (given by the values of time and temperature), the mass loss will also proportionally increase (Figure 6). Temperatures over 260 • C increased the mass loss [23][24][25][26] of oak pellets to a greater degree. A temperature of 300 • C represented the ideal temperature for torrefaction but was the highest one possible before self-burning occurs.…”

Section: Mass Losses In Time Of Torrefactionmentioning

confidence: 99%

“…It has also been shown via chemical analysis that only hemicellulose was degraded during torrefying, whereas lignin and cellulose remaining undegraded. Lee et al [23] used sewage sludge for torrefaction to enrich energetic properties. The obtained product was very similar to coal.…”

Section: Introductionmentioning

confidence: 99%

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Calorific Characteristics of Larch (Larix decidua) and Oak (Quercus robur) Pellets Realized from Native and Torrefied Sawdust

Lunguleasa

Spirchez

Olărescu

2022

Forests

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This research aimed to evaluate the calorific characteristics of two biomasses from larch and oak sawdust in the form of native or torrefied pellets. Some calorific features of these two kinds of biomasses, such as ash content, higher and lower calorific values, calorific density and many others were highlighted, allowing for a comparison between oak and larch torrefied/not torrefied pellets. Installations and methods used for the process of torrefaction and for highlighting some of the calorific features were also evaluated. As a result of experiments, it was demonstrated that the larch and oak pellets were different in terms of density, but that after thermal treatment, the calorific values of both increased considerably. The investigations evidenced some increases in calorific value, up to 15.8%, for both the larch and oak sawdust/pellets. One of the main conclusions of this research was that, even though the role of biomass has diminished considerably in the last few decades, its role as a sustainable fuel remains relevant. Its use will become more widespread when the world’s population understands that fossil fuels are depletable and that they must be replaced by renewable fuels such as biomass.

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Section: Methodsmentioning

confidence: 99%

Section: Mass Losses In Time Of Torrefactionmentioning

confidence: 99%