scholarly journals Identification of low molecular weight aromatic compounds from the lignin degraded by Bacillus sp. using Gas Chromatography – Mass Spectrum

2008 ◽  
Vol 2 (2) ◽  
pp. 82-86
Author(s):  
J. Vetriselvi ◽  
◽  
Chandrasekaran R ◽  
Saravanamuthu R ◽  
◽  
...  
Keyword(s):  
Molecular Weight ◽  
Gas Chromatography ◽  
Mass Spectrum ◽  
Aromatic Compounds ◽  
Low Molecular Weight ◽  
Bacillus Sp

scholarly journals Effect of WC/Ni–Cr additive on changes in the composition of an atmospheric residue in the course of cracking

2019 ◽  
Vol 17 (2) ◽  
pp. 499-508 ◽  
Author(s):  
Galina S. Pevneva ◽  
Natalya G. Voronetskaya ◽  
Nikita N. Sviridenko ◽  
Anatoly K. Golovko
Keyword(s):  
Molecular Weight ◽  
Tungsten Carbide ◽  
Aromatic Hydrocarbons ◽  
Aromatic Compounds ◽  
Low Molecular Weight ◽  
Nickel Chromium ◽  
Atmospheric Residue ◽  
Sulfur Containing ◽  
Catalytic Additive ◽  
Sulfur Containing Compounds

AbstractThe paper presents the results of investigation of changes in the composition of hydrocarbons and sulfur-containing compounds of an atmospheric residue in the course of cracking in the presence of a tungsten carbide–nickel–chromium (WC/Ni–Cr) catalytic additive and without it. The cracking is carried out in an autoclave at 500 °C for 30 min. The addition of the WC/Ni–Cr additive promotes the deepening of reactions of destruction not only of resins and asphaltenes, but also high molecular weight naphthene-aromatic compounds of the atmospheric residue. It is shown that the content of low molecular weight C9–C17 n-alkanes and C9–C10 alkylbenzenes rose sharply in the products of cracking with addition of WC/Ni–Cr in comparison with those produced without the additive. Alkyl- and naphthene-substituted aromatic hydrocarbons of benzene, naphthalene, phenanthrene series, polyarenes, benzo- and dibenzothiophenes are identified.

scholarly journals A new bacterial alcohol dehydrogenase active on degraded lignin and several low molecular weight aromatic compounds

1989 ◽  
Vol 57 (1) ◽  
pp. 109-114 ◽  
Author(s):  
Jean Pelmont ◽  
Catherine Tournesac ◽  
Ahmed Mliki ◽  
Michel Barrelle ◽  
Claude Beguin
Keyword(s):  
Molecular Weight ◽  
Alcohol Dehydrogenase ◽  
Aromatic Compounds ◽  
Low Molecular Weight
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