Spectral Resemblances of Cata‐Condensed Hydrocarbons

1949 ◽  
Vol 17 (8) ◽  
pp. 741-742 ◽  
Author(s):  
E. Clar
Keyword(s):  
Condensed Hydrocarbons

Reduction of aromatic hydrocarbons by lithium in ethylenediamine

1964 ◽  
Vol 17 (1) ◽  
pp. 55
Author(s):  
JD Brooks ◽  
RA Durie ◽  
H Silberman
Keyword(s):  
Aromatic Hydrocarbons ◽  
Carbonyl Groups ◽  
Olefinic Bond ◽  
Condensed Hydrocarbons

Various aromatic hydrocarbons, which can be assumed to represent some of the aromatic structures present in coals and chars, have been reduced under forcing conditions using lithium in ethylenediamine. It was found that: (i) Aromatic hydrocarbons highly substituted by alkyl or alicyclic groups are resistant to reduction. (ii) The less substituted benzene hydrocarbons and diphenyl-type structures yield, in addition to a proportion of fully reduced material, compounds containing a single olefinic bond which tends to resist further reduction. ��� (iii) Highly condensed hydrocarbons (such as pyrene or coronene) yield some perhydro derivatives, but a part of the product consists of less completely reduced compounds with aromatic and olefinic features; these compounds are more resistant to further reduction than the parent hydrocarbons. ��� (iv) Condensed polynuclear hydrocarbons yield also some products containing hydroxyl (phenolic) and carbonyl groups.

DEPOSITION OF PETROLEUM HEAVY ORGANIC COMPOUNDS ON A LOW CARBON STEEL TUBING

1999 ◽  
Vol 06 (06) ◽  
pp. 1299-1306 ◽  
Author(s):  
A. COSULTCHI ◽  
E. GARCÍAFIGUEROA ◽  
A. MUÑOZ-FLORES ◽  
A. GARCÍA-BÓRQUEZ ◽  
B. ZEIFERT ◽  
...  
Keyword(s):  
Low Carbon Steel ◽  
Active Phase ◽  
Low Carbon ◽  
X Ray Diffraction ◽  
Energy Dispersion Spectroscopy ◽  
X Ray ◽  
Polycyclic Aromatic ◽  
Petroleum Wells ◽  
Southeastern Region ◽  
Condensed Hydrocarbons

Reduction of petroleum wells production is often observed and related to the presence of solid deposits adhered on the internal wall of the tubing. A piece of tubing with organic material adhered on its surface was recovered from a Mexican southeastern region well. Its composition and morphology was studied applying scanning electron microscopy with X-ray energy dispersion spectroscopy (SEM-EDXS), X-ray diffraction (XRD) and reflection Fourier Transform Infrared Spectroscopy (FT-IRS). High-condensed hydrocarbons with hydroxyl and carboxyl functional groups and 6.4 wt% total sulfur were found. The adhered-material morphology suggests vitreous solid structure usually identified in polycyclic aromatic compounds. Iron (II, III) oxides and nonstoichiometric sulfides are present; the last, as a corrosion product obtained in petroleum with low H 2 S concentration. Pyrrhotite ( Fe 1-x S ), which exhibits a nonstoichiometric structure, was reported as the active phase of iron oxide catalysts in hydrogen interchange processes.

Reaction of Naphthyl Radicals with Naphthalene

1963 ◽  
Vol 16 (3) ◽  
pp. 440 ◽  
Author(s):  
GM Badger ◽  
CP Whittle
Keyword(s):  
Condensed Hydrocarbons

Reaction of 1-naphthyl radicals with naphthalene has given 1,1'-binaphthyl, 1,2'-binaphthyl, and several related condensed hydrocarbons. Reaction of 2-naphthyl radicals with naphthalene gave 1,2'-binaphthyl and 2,2'-binaphthyl.

scholarly journals Subcontinuum mass transport of condensed hydrocarbons in nanoporous media

2015 ◽  
Vol 6 (1) ◽  
Author(s):  
Kerstin Falk ◽  
Benoit Coasne ◽  
Roland Pellenq ◽  
Franz-Josef Ulm ◽  
Lydéric Bocquet
Keyword(s):  
Mass Transport ◽  
Nanoporous Media ◽  
Condensed Hydrocarbons

The Diazotization of o-(1-Cycloalkenyl)-banzylamines. The Synthesis of Condensed Hydrocarbons

1961 ◽  
Vol 83 (7) ◽  
pp. 1751-1754 ◽  
Author(s):  
William E. Parham ◽  
Charles D. Wright ◽  
Donald A. Bolon
Keyword(s):  
Condensed Hydrocarbons

Stability of Condensed Hydrocarbons in the Solar Nebula

Icarus ◽  
2001 ◽  
Vol 150 (2) ◽  
pp. 323-337 ◽  
Author(s):  
M Zolotov
Keyword(s):  
Solar Nebula ◽  
Condensed Hydrocarbons
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