Effects of pyrolysis temperature on changes in fuel characteristics of biomass char

Park, Sangwoo; CheolHyeon, Jang

doi:10.1016/j.energy.2012.01.031

Cited by 67 publications

(24 citation statements)

References 33 publications

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“…Biomass pyrolysis is a thermochemical process which produces solid chars, liquid bio-oils and syngases as the final products. Syngases usually contain CO, CO 2 , H 2 and CH 4 , have relatively high HHV values, and can be cocombusted with natural gases in a combustor [3]. The upgraded bio-oil can be used as the fuels for diesel engines [4].…”

Section: Introductionmentioning

confidence: 99%

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Analysis of the Rice Husk Pyrolysis Products from a Fluidized Bed Reactor

Hsu

Huang

Kuo

2015

Procedia Engineering

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Rice husks are pyrolyzed in a fluidized bed pyrolyzer using glass beads as the fluidizing media. The effects of the rice husk feeding rate and the fluidizing nitrogen gas flow rates on the mass fraction of the produced syngas, bio-oil and char are studied. The highest bio-oil mass fraction in the product is around 30% when the rice husk feeding rate and the fluidizing nitrogen gas flow rate are 10 g/min and 40 L/min, respectively. The chars collected at different parts of the system are analyzed by TGA. The results indicate that although the chars have different content of volatiles, they are relatively clean. GC/MS analysing results indicate that the major compounds in the bio-oil are aromatic compounds, including toluene, phenol, furfural, methylphenol, ethylphenol, benzenediol, and etc.

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Section: Introductionmentioning

confidence: 99%

“…Biomass is the one of the most abundant renewable energies [3]. Biomass pyrolysis is a thermochemical process which produces solid chars, liquid bio-oils and syngases as the final products.…”

Section: Introductionmentioning

confidence: 99%

Analysis of the Rice Husk Pyrolysis Products from a Fluidized Bed Reactor

Hsu

Huang

Kuo

2015

Procedia Engineering

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“…Improvement of heating value is due to increased fixed carbon. The fixed carbon content of torrefied biomass is high (25-40% depending on reaction conditions) (Bergman and Kiel 2005, Medic et al 2012, Park and Jang 2012. The combustion property also improved; torrefied biomass burns longer due to larger percentage of fixed carbon (Bridgeman et al 2008).…”

Section: Calorific Value Proximate Analysismentioning

confidence: 99%

Production of Solid Fuel by Torrefaction Using Coconut Leaves As Renewable Biomass

Pestaño

Jose

2016

Int. J. Renew. Energy Dev.

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ABSTRACT. The reserves of non-renewable energy sources such as coal, crude oil and natural gas are not limitless, they gradually get exhausted and their price continually increases. In the last four decades, researchers have been focusing on alternate fuel resources to meet the ever increasing energy demand and to avoid dependence on crude oil (Karunanithy et al. 2012). Amongst different sources of renewable energy, biomass residues hold special promise due to their inherent capability to store solar energy and amenability to subsequent conversion to convenient solid, liquid and gaseous fuels. At present, among the coconut farm wastes such as husks, shell, coir dust and coconut leaves, the latter is considered the most grossly under-utilized by in situ burning in the coconut farm as means of disposal. In order to utilize dried coconut leaves and to improve its biomass properties, this research attempts to produce solid fuel by torrefaction using dried coconut leaves for use as alternative source of energy that can be utilized in the indirect drying of coconut meat in the farm-level to produce copra. Torrefaction is a thermal method for the conversion of biomass operating in the low temperature range of 200 o C-300 o C under atmospheric conditions in absence of oxygen. Dried coconut leaves were torrefied at different feedstock conditions. The key torrefaction products were collected and analyzed. Physical and combustion characteristics of both torrefied and untorrefied biomass were investigated. Torrefaction of dried coconut leaves significantly improved the heating value compared to that of the untreated biomass. Proximate compositions of the torrefied biomass also improved and were comparable to coal. The distribution of the products of torrefaction depends highly on the process conditions such as torrefaction temperature and residence time. Physical and combustion characteristics of torrefied biomass were superior making it more suitable for fuel applications.

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“…The TGA analysis has been performed in various previous reports by [10][11][12][13][14][15][16][17][18][19][20][21][22]. TGA of agricultural residues and other biomass materials to study the kinetic parameters have been widely used technique [10][11][12][13][14][15][16][17][18][19][20][21][22].…”

Section: Tga Of Waste Agricultural Biomassmentioning

confidence: 99%