A comparative thermoanalytical study of low-temperature reactivity of brown coal with dioxygen and radiofrequency-activated oxygen

1988 ◽  
Vol 134 ◽  
pp. 333-338 ◽  
Author(s):  
A. Martiez-Alonso ◽  
J.M.D. Tascon
Keyword(s):  
Low Temperature ◽  
Brown Coal ◽  
Thermoanalytical Study ◽  
Activated Oxygen

Low Temperature Nitridation of Si Oxide Utilizing Activated Oxygen and Nitrogen

2003 ◽  
Vol 42 (Part 1, No. 3) ◽  
pp. 1145-1149
Author(s):  
Yukiharu Uraoka ◽  
Hiroshi Yano ◽  
Tomoaki Hatayama ◽  
Takashi Fuyuki
Keyword(s):  
Low Temperature ◽  
Activated Oxygen

Effects of drying methods on the low temperature reactivity of Victorian brown coal to oxygen

Fuel ◽  
1992 ◽  
Vol 71 (2) ◽  
pp. 183-192 ◽  
Author(s):  
S. Ünal ◽  
D.G. Wood ◽  
I.J. Harris
Keyword(s):  
Low Temperature ◽  
Brown Coal ◽  
Drying Methods

Changes in char structure during the low-temperature pyrolysis in N2 and subsequent gasification in air of Loy Yang brown coal char

Fuel ◽  
2018 ◽  
Vol 212 ◽  
pp. 187-192 ◽  
Author(s):  
Tingting Li ◽  
Lei Zhang ◽  
Li Dong ◽  
Penghua Qiu ◽  
Shuai Wang ◽  
...  
Keyword(s):  
Low Temperature ◽  
Brown Coal ◽  
Coal Char ◽  
Char Structure ◽  
Low Temperature Pyrolysis

Direct production of high British Thermal Unit gas from the low-temperature steam gasification of brown coal

1987 ◽  
Vol 26 (3) ◽  
pp. 627-629 ◽  
Author(s):  
Takayuki Takarada ◽  
Jun Sasaki ◽  
Yasuo Otsuka ◽  
Yasukatsu Tamai ◽  
Akira Tomita
Keyword(s):  
Low Temperature ◽  
Brown Coal ◽  
Steam Gasification ◽  
Thermal Unit ◽  
Direct Production

Effect of Minerals in Coal on the Product Yield of Coal Pyrolysis and Phenols in the Low-Temperature Tar

2012 ◽  
Vol 512-515 ◽  
pp. 1129-1136 ◽  
Author(s):  
Fan Hu Zeng ◽  
De Min He ◽  
Jun Guan ◽  
Qiu Min Zhang
Keyword(s):  
Carbon Monoxide ◽  
Low Temperature ◽  
Brown Coal ◽  
Atmospheric Pressure ◽  
Fixed Bed ◽  
Product Yield ◽  
Fixed Bed Reactor ◽  
Coal Pyrolysis ◽  
Catalytic Role

Wulagai brown coal and Wulagai acid washed brown coal were used to investigate the effect of minerals in coal on the reactivity of coal pyrolysis. The experiments were carried out at atmospheric pressure in a fixed bed reactor. The results showed that minerals in brown coal affected the product yield of coal pyrolysis and phenols in the low-temperature tar. The minerals in coal played a catalytic role on the generation of carbon monoxide and ethylene, and the decomposition of tar. At the same time, they may suppress the decomposition of intermediates or the producing of final phenols during coal pyrolysis.

GC-MS Analyzing of Coal Tar of Lignite Briquette from Low Temperature Pyrolysis

2014 ◽  
Vol 472 ◽  
pp. 591-595 ◽  
Author(s):  
Xin Tao Cui ◽  
Yong Fa Zhang ◽  
Dong Liu Dong ◽  
Yu Qiong Zhao
Keyword(s):  
Phenolic Compounds ◽  
Low Temperature ◽  
Brown Coal ◽  
Aromatic Compounds ◽  
Heterocyclic Compounds ◽  
Coal Tar ◽  
Aliphatic Hydrocarbon ◽  
The Other ◽  
Low Temperature Pyrolysis ◽  
Content Of Oxygen

Distillation and GC-MS were employed to analysis the coal tar of low-temperature pyrolysis of lignite briquette by contrasting with standards: the fraction below 340°C in the tar distillates of brown coal tar accounted for 83.30% and the other greater than 340°C is pitch accounted for 16.32%. 34.00% of coal tar are hydrocarbons which are mainly consisted of fat aliphatic hydrocarbon and include few alkene and cycloparaffins. The content of phenolic compounds in coal tar, mainly comes from the fraction below 210°C, is 11.68%. 16.86% of coal tar is aromatic compounds which are mainly composed of substitutive derivative of polyalkylbenzene distributing in all kinds of fractions; and a small amount of aromatic compounds which is concentrated in the fraction below 300°C. The content of oxygen-containing, nitrogen-containing and heterocyclic compounds is 4.47%, 0.57%, 2.11%, respectively.

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