CFD Modelling Based on MP-PIC of Low Rank Pulverized Coal Pyrolysis in Pyrolysis Furnace

2014 ◽

Vol 953-954 ◽

pp. 1035-1039

Author(s):

Li Qun Wang ◽

Zhong Bo Yi ◽

Zhong Xiang Wei

Keyword(s):

High Temperature ◽

Heat Pipe ◽

Pulverized Coal ◽

Holding Time ◽

Raw Material ◽

Low Rank ◽

Experimental Result ◽

Operating Characteristics ◽

Temperature Heat ◽

High Temperature Heat Pipe

Aimed at improving the utilization of pulverized coal, high-temperature heat pipe technology was introduced into lignite carbonization.Under the design of power of 10kw semi-industrial pulverized coal carbonization test equipment, Fugu lignite coal as raw material to investigate the operating characteristics of the device and carbonization characteristics. Experimental result shows that the high temperature heat pipes heat steadily and meet the temperature requirement of low-temperature carbonization. With the extension of the holding time, the semi-coke fixed carbon content increasing, but volatile matter vice versa, however, holding time above 60 minutes, the effect of carbonization is not obvious, and the best carbonization time is 30 ~ 60 minutes. The length of the holding time has little effect on gas composition, the content of H2 and CH4 are relatively higher than the rest gas, (H2 + CH4) gas accounted for 70% of the total, the heating value remains at 18.76 ~ 19.22MJ/m3, belongs to medium-high value gas, could provide for industrial and civilian use.

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The interaction between the char solid heat carrier and the volatiles during low-rank coal pyrolysis

Journal of Analytical and Applied Pyrolysis ◽

10.1016/j.jaap.2018.10.009 ◽

2018 ◽

Vol 136 ◽

pp. 160-168 ◽

Cited By ~ 5

Author(s):

Xiao-hong Li ◽

Bao-fu Li ◽

Da-qing Fu ◽

Jie Feng ◽

Wen-ying Li

Keyword(s):

Heat Carrier ◽

Low Rank ◽

Coal Pyrolysis ◽

Low Rank Coal

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Combustion possibility of low rank Russian peat as a blended fuel of pulverized coal fired power plant

Journal of Industrial and Engineering Chemistry ◽

10.1016/j.jiec.2013.08.027 ◽

2014 ◽

Vol 20 (4) ◽

pp. 1752-1760 ◽

Cited By ~ 3

Author(s):

Jae Kwan Kim ◽

Hyun Dong Lee ◽

Hyoung Suk Kim ◽

Ho Young Park ◽

Sung Chul Kim

Keyword(s):

Power Plant ◽

Pulverized Coal ◽

Low Rank ◽

Blended Fuel

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Effect of Three Different Catalysts (KCl, CaO, and Fe2O3) on the Reactivity and Mechanism of Low-Rank Coal Pyrolysis

Energy & Fuels ◽

10.1021/acs.energyfuels.5b02720 ◽

2016 ◽

Vol 30 (3) ◽

pp. 2428-2433 ◽

Cited By ~ 27

Author(s):

Yu Fu ◽

YanHong Guo ◽

KeXin Zhang

Keyword(s):

Low Rank ◽

Coal Pyrolysis ◽

Low Rank Coal

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Prediction of unburned carbon and NO formation from low-rank coal during pulverized coal combustion: Experiments and numerical simulation

Fuel ◽

10.1016/j.fuel.2016.08.026 ◽

2016 ◽

Vol 185 ◽

pp. 478-490 ◽

Cited By ~ 10

Author(s):

Kevin Yohanes Lisandy ◽

Jeong-Woo Kim ◽

Ho Lim ◽

Seung-Mo Kim ◽

Chung-Hwan Jeon

Keyword(s):

Numerical Simulation ◽

Coal Combustion ◽

Pulverized Coal ◽

Low Rank ◽

Unburned Carbon ◽

Pulverized Coal Combustion ◽

Low Rank Coal ◽

No Formation

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Pyrolysis Characteristics and Kinetics of Low Rank Coal

Materials Science Forum ◽

10.4028/www.scientific.net/msf.695.493 ◽

2011 ◽

Vol 695 ◽

pp. 493-496 ◽

Cited By ~ 2

Author(s):

Yong Hui Song ◽

Jian Mei She ◽

Xin Zhe Lan ◽

Jun Zhou

Keyword(s):

Weight Loss ◽

Heating Rate ◽

Frequency Factor ◽

Low Rank ◽

Coal Pyrolysis ◽

Pyrolysis Characteristics ◽

Second Stage ◽

Thermo Gravimetric Analyzer ◽

Kinetics Of ◽

Pyrolysis Kinetic

The pyrolysis characteristics of Jianfanggou(JFG) coal was studied using a thermo-gravimetric analyzer and the pyrolysis kinetic parameters were calculated at the different heating rate. The results showed the DTG curves under different heating rate had three peaks and the corresponding temperature were 100°C, 470°C and 750°C, the pyrolysis process can be divided into three stages conclusively. The maximum weight loss rate at 470°C indicated the major weight loss occurred in the second stage. The Tb, Tf and T∞ obtained under experiment situation. The results of the JFG coal pyrolysis kinetic showed the Tb, Tf and T∞ increased gradually with the accretion of the heating rate. In the meantime, the variation of frequency factor was consistent with the trend of activation energy.

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