scholarly journals The Influence of Coal Tars over the Environment

2020 ◽  
Vol 2 (1) ◽  
Author(s):  
Clementina MOLDOVAN ◽  
Aronel MATEI ◽  
Roxana Claudia HERBEI ◽  
Raluca MATEI
Keyword(s):  
High Temperatures ◽  
Aromatic Compounds ◽  
Animal Health ◽  
Coal Tar ◽  
Macromolecular Compound ◽  
Volatile Products

Coal is a macromolecular compound. At high temperatures, by coal pyrogenesis, coke and volatile products will result.The volatile products from coal form the coke gas and coke tar from which a very large number of aromatic compounds can be extracted.The aromatic compounds extracted from domestic and foreign coal tar were compared in this paper, together with their effects overthe human and animal health.

Importance of heterocylic aromatic compounds in monitored natural attenuation for coal tar contaminated aquifers: A review

2011 ◽  
Vol 126 (3-4) ◽  
pp. 181-194 ◽  
Author(s):  
Philipp Blum ◽  
Anne Sagner ◽  
Andreas Tiehm ◽  
Peter Martus ◽  
Thomas Wendel ◽  
...  
Keyword(s):  
Natural Attenuation ◽  
Aromatic Compounds ◽  
Coal Tar ◽  
Monitored Natural Attenuation ◽  
Contaminated Aquifers

Reactions of aromatic compounds at high temperatures

1969 ◽  
Vol 2 (9) ◽  
pp. 273-278 ◽  
Author(s):  
Ellis K. Fields ◽  
Seymour Meyerson
Keyword(s):  
High Temperatures ◽  
Aromatic Compounds

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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