Effect of coal type on the flash pyrolysis of various coals

Xu, Wei-Chun; Tomita, Akira

doi:10.1016/0016-2361(87)90270-5

Cited by 143 publications

(77 citation statements)

References 9 publications

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“…The pyrolysis experiments were set to a temperature of 1037 K, a heating rate of 3000 K/s, and atmospheric pressure. Y VY was correlated to the %Y C of the coal ultimate analysis by Xu and Tomita [6]. In the present work, the coal type number N CT is used to show the effect of the coal type.…”

Section: Effect Of Coal-biomass Typementioning

confidence: 97%

“…The heating rate β and pressure P can be higher than the proximate analysis conditions. Niksa [1], Mill [2], Genetti [3], and Xu and Tomita [6] have investigated the pyrolysis behavior of different coals under different conditions. The measured pyrolysis variables were light gas mass fraction, tar yield, total volatiles, and volatile enhancement.…”

Section: Formulationmentioning

confidence: 99%

“…These coal and biomass data were gathered from different sources in the literature. In total, 179 coal data sets were used for this study; 6 Australian coals provided by Mill [2], 29 USA coals published in Genetti [3], and 21 coals reported by Xu and Tomita [6]. The rest were coals found in references [12][13][14][15][16] and originated from Canada, China, Japan, Germany, Indonesia, Slovenia, Ukraine, Korea, Vietnam and India.…”

Section: Coal and Biomass Databankmentioning

confidence: 99%

“…The measurement of pyrolysis performances was comprehensively conducted by Xu and Tomita [6]. In their experiment, 17 coals were involved.…”

Section: Effect Of Coal-biomass Typementioning

confidence: 99%

“…If one component increases its yield with N CT , there will be at least one component that has a decreased yield. To determine how these y i 's behave, the measured data for the component yields of the light gases and tar from Xu and Tomita [6] were used. The plots of y i versus N CT are given in Figure 8.…”

Section: General Empirical Correlationmentioning

confidence: 99%

See 4 more Smart Citations

New Correlations for Coal and Biomass Pyrolysis Performances with Coal-Biomass Type Number and Temperature

Bindar

2013

j.eng.technol.sci.

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Abstract. The pyrolysis of coal and biomass is generally reported as the mass yield of released chemicals at various temperatures, pressures, heating rates and coal or biomass type. In this work, a new coal-biomass type number, N CT , is introduced. This number is constructed from the mass fractions of carbon, hydrogen, and oxygen in the ultimate analysis. This number is unique for each coal or biomass type. For 179 different species of coal and biomass from the literature, the volatile matter mass yield can be expressed by the second order polynomial function ln(N CT ). This unique correlation allows the effects of the temperature and heating rate on the volatile yield Y VY for coal and biomass to be empirically correlated as well. The correlation for the mass fraction of each chemical component in the released volatile matter correlation is obtained from the Y VY correlation. The weight factor for some of the components is constant for the variation of N CT , but not for others. The resulted volatile matter and yield correlations are limited to atmospheric pressure, very small particles (less than 0.212 mm) and interpreted for wire-mesh pyrolysis reactor conditions and a nitrogen gas environment.

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Section: Effect Of Coal-biomass Typementioning

confidence: 97%

Section: Formulationmentioning

confidence: 99%

Section: Coal and Biomass Databankmentioning

confidence: 99%

“…The measurement of pyrolysis performances was comprehensively conducted by Xu and Tomita [6]. In their experiment, 17 coals were involved.…”

Section: Effect Of Coal-biomass Typementioning

confidence: 99%

Section: General Empirical Correlationmentioning

confidence: 99%

See 3 more Smart Citations

New Correlations for Coal and Biomass Pyrolysis Performances with Coal-Biomass Type Number and Temperature

Bindar

2013

j.eng.technol.sci.

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Coal Pyrolysis to Acetylene in Plasma Reactor

Yan

Cheng

2017

Multiphase Reactor Engineering for Clean and Low‐Carbon Energy Applications

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Gasification and Pyrolysis of Coal

Luckos¹,

Shaik²,

Dyk³

2010

Handbook of Combustion

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Nowadays, concerns about global climate change and rising prices of crude oil and natural gas make the need for clean energy from coal more important than ever. Gasification of coal is a major clean coal technology that will play a significant role in the coming decades, both for power generation and for the production of chemicals and synthetic fuels. Gasification is a technology in which coal is reacted with air, oxygen, steam, carbon dioxide, or a mixture of these gases to yield a gaseous product (called syngas) consisting of carbon monoxide, hydrogen, and some methane and carbon dioxide. After cleaning, syngas can be used either as raw material for the synthesis of liquid fuels and chemicals coal‐to‐liquids technologies, as a reductant in pyrometallurgical processes (e.g. direct reduction of iron), or as a source of energy for the generation of electric power (in integrated gasification combined cycle systems) or a combination of these products. This chapter provides an overview on the pyrolysis and gasification chemistry and the current status of coal gasification technologies.

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Effect of coal type on the flash pyrolysis of various coals

Cited by 143 publications

References 9 publications

New Correlations for Coal and Biomass Pyrolysis Performances with Coal-Biomass Type Number and Temperature

New Correlations for Coal and Biomass Pyrolysis Performances with Coal-Biomass Type Number and Temperature

Coal Pyrolysis to Acetylene in Plasma Reactor

Gasification and Pyrolysis of Coal

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