We can therefore anticipate a uniform steady-state composition of hydrocarbons at catalytic sites reflecting equivalent rates of hydrocarbon delivery and removal and changing compositions at catalytic sites under static conditions.
In other words, molecular and isotopic compositions of hydrocarbons generated at steady state can be distinct from hydrocarbons generated at pre-steady state.
The compositions of gaseous products were analyzed by a Bruker 450 Gas Chromatograph equipped with a FID detector to determine the compositions of hydrocarbons and two TCD detectors to analyze the content of hydrogen, carbon monoxide, and carbon dioxide.
Recently, a series of gold-tube hydrous pyrolysis experiments have been conducted to address the reaction mechanism and the factors affecting TSR, which include compositions of hydrocarbons, labile organosulfur compounds (LSC) and the early generated H2S (Tang et al. 2005; Ellis et al. 2007; Amrani et al. 2008).
The composition of the hydrocarbon mixture is detailed up to the C-number.
The degree of non-Newtonian properties manifestation of non-linear viscoplastic oil depends on the permeability of the reservoir, the relation and component composition of the hydrocarbon phase the presence of paraffin, asphaltenes, resins, nitrogen, methane and ethane.
Yields and carbon isotopic composition of gaseous hydrocarbons were determined.
For this purpose, we studied the composition of paraffin hydrocarbons in corresponding solid deposits focusing on the study of waxes in asphaltenes from solid deposits.
Areas of microseepage are detected by observing the concentration and composition of light hydrocarbons, chiefly methane through butane, extracted from these soils and sediments.
As discussed before, composition of lighter hydrocarbons decrease with increase in depth, while a reverse trend is observed for heavier ones.
