Adsorption-Extrographic Preconcentration of Petroleum Vanadyl Porphyrins from Dimethylformamide Extract of Heavy Petroleum Asphaltenes

2021 ◽  
Vol 94 (9) ◽  
pp. 1324-1333
Author(s):  
N. A. Mironov ◽  
E. G. Tazeeva ◽  
D. V. Milordov ◽  
G. R. Abilova ◽  
D. I. Tazeev ◽  
...  
Keyword(s):  
Heavy Petroleum ◽  
Petroleum Asphaltenes

Study of hydrogenation of petroleum asphaltenes

1981 ◽  
Vol 46 (2) ◽  
pp. 409-418 ◽  
Author(s):  
Gustav Šebor ◽  
Salvador Reynoso ◽  
Milan Hájek ◽  
Otto Weisser ◽  
Jiří Mostecký
Keyword(s):  
Temperature Region ◽  
Catalytic Hydrogenation ◽  
Starting Material ◽  
Type Analysis ◽  
H Nmr ◽  
Petroleum Asphaltenes

Isolated petroleum asphaltenes were subjected to model thermal and catalytic hydrogenation experiments in the temperature region 300-450° C. The course of hydrogenation of the asphaltenes studied is discussed based on 1H-NMR type analysis of the starting material and the hydrogenation products.

Molecular-level heavy petroleum hydrotreating modeling and comparison with high-resolution mass spectrometry

Fuel ◽  
2021 ◽  
Vol 297 ◽  
pp. 120792
Author(s):  
Dong Guan ◽  
Zhengyu Chen ◽  
Xiu Chen ◽  
Ying Zhang ◽  
Qiuyan Qi ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
High Resolution ◽  
Molecular Level ◽  
High Resolution Mass Spectrometry ◽  
Heavy Petroleum ◽  
High Resolution Mass ◽  
Resolution Mass

Natural paramagnetism of heavy petroleum residues☆

1987 ◽  
Vol 27 (4) ◽  
pp. 265-272
Author(s):  
L LYUBCHENKO ◽  
Y KUMPANENKO
Keyword(s):  
Heavy Petroleum ◽  
Petroleum Residues

Comparison of the Structures of Molecules in Coal and Petroleum Asphaltenes by Using Mass Spectrometry

2013 ◽  
Vol 27 (7) ◽  
pp. 3653-3658 ◽  
Author(s):  
Matthew R. Hurt ◽  
David J. Borton ◽  
Heewon J. Choi ◽  
Hilkka I. Kenttämaa
Keyword(s):  
Mass Spectrometry ◽  
Petroleum Asphaltenes

scholarly journals Simultaneous and rapid asphaltene and TAN determination for heavy petroleum using an H-cell

2014 ◽  
Vol 6 (11) ◽  
pp. 3651-3660 ◽  
Author(s):  
Oluwarotimi O. Alabi ◽  
Stephen A. Bowden ◽  
John Parnell
Keyword(s):  
Heavy Petroleum

Image of an H-cell device in operation capable of performing accurate asphaltene and TAN assays.

Support for catalysts used in hydrotreating heavy petroleum stocks

1998 ◽  
Vol 34 (5) ◽  
pp. 314-316
Author(s):  
R. R. Aliev ◽  
M. N. Pervushina ◽  
M. I. Lupina ◽  
E. A. Leshcheva
Keyword(s):  
Heavy Petroleum
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