Asphalt and Vacuum Residues
Asphalt
A very complex combination of high molecular weight organic compounds
containing a relatively high proportion of hydrocarbons having carbon numbers
predominantly greater than C25 with high carbon-to-hydrogen ratios. It also
contains small amounts of various metals such as nickel, iron, or vanadium. It
is obtained as the non-volatile residue from distillation of crude oil or by
separation as the raffinate from a residual oil in a deasphalting or
decarbonization process.
Residues (petroleum), vacuum
A complex residuum from the vacuum distillation of the residuum from
atmospheric distillation of crude oil. It consists of hydrocarbons having carbon
numbers predominantly greater than C34 and boiling above approximately 495°C
(923°F).
Residues (petroleum), hydrodesulfurized vacuum
A complex combination of hydrocarbons obtained by treating a vacuum residuum
with hydrogen in the presence of a catalyst under conditions primarily to remove
organic sulfur compounds. It consists of hydrocarbons having carbon numbers
predominantly greater than C34 and boiling approximately above 495°C (923°F).
Asphalt, oxidized
A complex black solid obtained by blowing air through a heated residuum, or
raffinate from a deasphalting process with or without a catalyst. The process is
principally one of oxidative condensation which increases the molecular weight.
Asphaltenes (petroleum)
A complex combination of hydrocarbons obtained as a complex solid black
product by the separation of petroleum residues by means of a special treatment
of a light hydrocarbon cut. The carbon/hydrogen ratio is especially high. This
product contains a low quantity of vanadium and nickel.
Residues (petroleum), thermal cracked vacuum
A complex combination of hydrocarbons obtained from the vacuum distillation
of the products from a thermal cracking process. It consists predominantly of
hydrocarbons having carbon numbers predominantly greater than C34 and boiling
above approximately 495°C (923°F).
Residues (petroleum), dewaxed heavy parafinnic, vacuum
A complex combination of hydrocarbons obtained as the residue from the
molecular distillation of a dewaxed heavy paraffinic distillate. It consists of
hydrocarbons having carbon numbers predominantly greater than C80 and boiling
above approximately 450°C (842°F).
Residues (petroleum), distn. residue hydragenation
A complex combination of hydrocarbons obtained as a residue from the
distillation of crude oil under vacuum. It consists predominantly of
hydrocarbons having carbon numbers predominantly in the range above C50 and
boiling in the range above approximately 360°C (680°F).
Residues (petroleum), vacuum distn. residue hydrogenation
A complex combination of hydrocarbons obtained as a residue from the
distillation of crude oil under vacuum. It consists predominantly of
hydrocarbons having carbon numbers predominantly in the range above C5o and
boiling in the range above approximately 500°C (932°F).
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