Investigating combustion behaviors of bamboo, torrefied bamboo, coal and their respective blends by thermogravimetric analysis

Liu, Zhijia; Hu, Wanhe; Jiang, Zehui; Mi, Bingbing; Fei, Baowei

doi:10.1016/j.renene.2015.10.039

Cited by 68 publications

(28 citation statements)

References 25 publications

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“…As a natural raw material, bamboo is an abundant natural resource in Asia and South America, especially in China, where the total area of bamboo is about six million hectares (Atanda 2015;Liu et al 2016). Nowadays bamboo is a promising substitute material for flooring, roofing, chopsticks, paper-making, biomass solid fuel, and reinforcement in place of steel in buildings due to its innate properties.…”

Section: Introductionmentioning

confidence: 99%

Effects of Boric Acid and/or Borax Treatments on the Fire Resistance of Bamboo Filament

Yu¹,

Cai²,

Li³

et al. 2017

BioResources

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Bamboo filament, a material often used for indoor decoration, should be treated with flame retardants for safe use. This study evaluated the effects of different boron fire retardants on the heat release and smoke release of bamboo filaments and untreated samples via a cone analysis. A thermogravimetric analyzer (TA) instrument was used to investigate the fire retardant mechanisms of the different boron compounds. The results showed that compared to the untreated samples, fire retardants that contained boric acid or borax effectively reduced the heat and smoke release from the bamboo filament. The effects of the different ingredients in the fire retardant on the combustion process were quite different. During the combustion process, borax displayed better performance for restraining the heat release rate than boric acid, while for the total amount of heat release and the smoke suspension performance, the result was the converse. The excellent synergistic effect could be obtained by a mixture that contained a reasonable proportion of boric acid and borax (Boric Acid:Borax = 1:1). In the pyrolysis process, boric acid had stronger catalytic dehydration, while the mass loss in the treated samples with boric acid or higher proportions of boric acid was less than the loss in the boraxtreated samples.

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Section: Introductionmentioning

confidence: 99%

Effects of Boric Acid and/or Borax Treatments on the Fire Resistance of Bamboo Filament

Yu¹,

Cai²,

Li³

et al. 2017

BioResources

Self Cite

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“…Based on their investigation, they suggested a heating rate between 20°C and 30°C per min in TGA. Co‐combustion characteristics of coal with bamboo, torrefied bamboo, and their blends were investigated by Liu et al They mixed bamboo and torrefied bamboo into the coal in the proportion of 10%, 20%, 30%, 40%, and 50%. On the basis of increased peak temperature and decreased weight loss rate, they reported that the reactivity of torrefied bamboo is lower than bamboo.…”

Section: Aspects Of Coal Combustionmentioning

confidence: 99%

A complete review based on various aspects of pulverized coal combustion

Yadav

Mondal

2019

Int J Energy Res

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Summary Coal is the most abundant energy source, and around 40% of the world's electricity is produced by coal combustion. The emission generated through it put a constraint on power production by coal combustion. There is a need to reduce the emissions generated through it to utilize the enormous energy of coal for power production. Detailed understanding of various aspects of coal combustion is required to reduce the emissions from coal‐fired furnaces. The aim of present paper is to review various aspects of pulverized coal combustion such as oxy‐fuel combustion, co‐combustion of coal and biomass, emissions from pulverized coal furnaces, ash formation and deposition, and carbon capture and sequestration (CCS) technologies to outline the progress made in these aspects. Both experimental and numerical aspects are included in this review. This review also discusses the thermodynamic aspects of the combustion process. Furthermore, the effect of various submodels such as devolatilization models, char combustion models, radiation models, and turbulent models on the process of pulverized coal combustion has been investigated in this paper.

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“…C coal, with a 745 K ignition temperature, is the most easily ignited coal, while B coal has the highest ignition temperature (761 K). Meanwhile, C coal has the lowest peak temperature (815 K) and the longest burnout time (8.10 min), indicating that C coal will ignite at low temperatures and keep combusting for a long time [25]. A coal-burning iron oxidation rotary kiln provides heat to ensure that the temperatures in the kiln head and kiln are not lower than 1523 K. The kiln heat provided by coal combustion should preheat the pellets to ensure that the temperature of the chain grate does not fall below 1223 K [26].…”

Section: Pyrolysis Behaviormentioning

confidence: 99%

Thermal Behavior of Coal Used in Rotary Kiln and Its Combustion Intensification

et al. 2018

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Pyrolysis and combustion behaviors of three coals (A, B, and C coals) were investigated and their combustion kinetics were calculated by the Freeman-Carroll method to obtain quantitative insight into their combustion behaviors. Moreover, the effects of coal size, air flow, oxygen content, and heating rate on coal combustion behaviors were analyzed. Results showed that the three coals have a similar trend of pyrolysis that occurs at about 670 K and this process continuously proceeds along with their combustion. Combustion characteristics and kinetic parameters can be applied to analyze coal combustion behaviors. Three coals having combustion characteristics of suitable ignition temperature (745-761 K), DTG max (14.20-15.72%/min), and burnout time (7.45-8.10 min) were analyzed in a rotary kiln. Combustion kinetic parameters provide quantitative insights into coal combustion behavior. The suitable particle size for coal combustion in a kiln is that the content of less than 74 µm is 60% to 80%. Low activation energy and reaction order make coal, especially C coal, have a simple combustion mechanism, great reactivity, be easily ignited, and a low peak temperature in the combustion state. Oxygen-enrichment and high heating rates enhance coal combustion, increasing combustion intensity and peak value, thus shortening burnout time.

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Investigating combustion behaviors of bamboo, torrefied bamboo, coal and their respective blends by thermogravimetric analysis

Cited by 68 publications

References 25 publications

Effects of Boric Acid and/or Borax Treatments on the Fire Resistance of Bamboo Filament

Effects of Boric Acid and/or Borax Treatments on the Fire Resistance of Bamboo Filament

A complete review based on various aspects of pulverized coal combustion

Thermal Behavior of Coal Used in Rotary Kiln and Its Combustion Intensification

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