Fuelwood characteristics of some indigenous woody species of north-east India

Kataki, Rupam; Konwer, D.

doi:10.1016/s0961-9534(00)00060-x

Cited by 115 publications

(57 citation statements)

References 11 publications

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“…The extractive-free samples were further used for determination of lignin, by digesting with 72% sulfuric acid for 2h and holocellulose by chlorination and extraction in ethanol and ethanolamine (Kataki and Konwer, 2001).…”

Section: Methodsmentioning

confidence: 99%

Relationships between Heating Value and Lignin, Moisture, Ash and Extractive Contents of Biomass Fuels

Demırbas¹

2002

Energy Exploration & Exploitation

229

106

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Various fuel characteristics, such as moisture, ash, lignin, holocellulose and extractive contents of different biomass species were determined on ash-free dry weight and extractive-free dry weight basis to find out relationship, if any, between ash and extractive content with the higher heating value. Moisture in biomass generally decreases its heating value. Ash and extractive content are two important parameters directly affecting the heating value. High ash content of a plant part makes it less desirable as fuel, whereas high extractive content adds to its desirability. Again the heat content, which is a very important factor affecting utilization of any material as a fuel, is affected by the proportion of extractives present in it. Extractives raised the higher heating values of the biomass samples.

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Section: Methodsmentioning

confidence: 99%

Relationships between Heating Value and Lignin, Moisture, Ash and Extractive Contents of Biomass Fuels

Demırbas¹

2002

Energy Exploration & Exploitation

229

106

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“…In our previous study, the higher heating value was observed in the compression wood (CW) with lower ash content, while that of tension wood (TW) with higher ash content showed lower heating value than CW (Qi et al, 2016). Kataki and Konwer (2001) examined that the heating value of raw wood and the ash-free modified wood. They reported that ash content has negative effect on the heating value, and revealed that high ash content in some wood species makes them less available for fuelwood.…”

Section: Heating Valuementioning

confidence: 97%

“…branch and bark, and reported that the ash content of bark was highest among these three types. Kataki and Konwer (2001) revealed that leaf and bark had much higher ash content than stem and twig of four indigenous perennial tree species. Moreover, the ash contents of woody parts, as stem, branch and root obtained from P. tomentosa, were lower than 0.7% in the standards and quality compliant of wood chips for fuel (NIFS, 2013).…”

Section: Proximate Analysismentioning

confidence: 99%

Solid Bioenergy Properties of Paulownia tomentosa Grown in Korea

Qi¹,

Yang²,

Hidayat³

et al. 2016

Journal of the Korean Wood Science and Technology

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Paulownia tomentosa is one of fast-growing wood species in Korea. In order to evaluate the solid bioenergy properties of Paulownia tree, this study examined the heating value, moisture content (MC), pH and proximate analysis of stem, branch, root, bark and leaf. The heating values of wood parts were slightly higher than those of bark and leaf, and that of branch was the highest among all the samples. The higher moisture content of bark and leaf referred to their lower heating value. Also, the pH of stem, branch and root was similar and lower than those of bark and leaf. The ash content of bark and leaf was much higher than that of wood parts, which is the one of the reasons for effect on the lower heating value and higher pH. While, the volatile matter content (VMC) of bark and leaf was lower than those of wood parts. The bark showed the highest fixed carbon content (FCC), while the FCC of stem was the lowest among all the samples. The obtained results are encouraging that the Paulownia tree could be totally utilized as alternative fuels for bioenergy production.

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“…The extractive content is an important parameter that directly affects the heating value (Kataki and Konwer 2001). A high extractive content makes a lignocellulosic material more desirable as a fuel since the extractives increase the heating value of the material (Demirbas 2002;Telmo and Lousada 2011).…”

Section: Chemical Compositionmentioning

confidence: 99%

Fuel Properties of Sugar Maple and Yellow Birch Wood in Relation with Tree Vigor

Nguyen¹,

Cloutier²,

Achim³

et al. 2016

BioResources

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The fuel properties of wood obtained from sugar maple (SM) and yellow birch (YB) of temperate hardwood stands located in the Province of Québec, Canada were studied to see how tree vigor affects the chemical composition and calorific value of the wood. This study focused on the physical and chemical properties of wood with the aim of using the material for the production of solid biofuels. Specific items measured included the wood's calorific values, and the levels of extractives, ash, and lignin. Changes in chemical composition were found among tree vigor classes. The low vigor trees had higher extractives, ash, and lignin contents than the vigorous trees. Total extractives ranged between 4.88 and 7.32% in SM, and between 3.35 and 5.12% in YB. Klason lignin ranged between 21.46 and 23.53% in SM, and between 18.60 and 21.51% in YB. Ash content ranged between 0.38 and 0.97% in SM, and between 0.26 and 0.47% in YB. The combined effects of higher lignin content that could contribute to a better self-bonding of particles and of higher extractives content that could facilitate the pelletization process makes the low vigor trees more suitable for conversion into solid biofuels. The higher amounts of extractives and lignin present in the low vigor sugar maple and yellow birch trees could also have a positive role in maintaining the high calorific values of this wood despite higher ash content.

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Fuelwood characteristics of some indigenous woody species of north-east India

Cited by 115 publications

References 11 publications

Relationships between Heating Value and Lignin, Moisture, Ash and Extractive Contents of Biomass Fuels

Relationships between Heating Value and Lignin, Moisture, Ash and Extractive Contents of Biomass Fuels

Solid Bioenergy Properties of Paulownia tomentosa Grown in Korea

Fuel Properties of Sugar Maple and Yellow Birch Wood in Relation with Tree Vigor

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