Significant evaporative loss of gaseous and light hydrocarbons (up to C10) can occur during core and cuttings collection and storage, and subsequent sample preparation in the laboratory before instrumental analysis.
The products selectivity variation trend indicated that the selectivity to gaseous and light hydrocarbons was increased, whereas that to heavy hydrocarbons and olefin was suppressed when the Zr species and SiO2 were precipitated before the precipitation of Fe3+ cation.
A total loss of gaseous and light liquid hydrocarbons up to C9 is shown to take place within 21 h of sample preparation for the low TOC (<1%) Ordovician Lotbinière shale when the powdered sample was left exposed to the open air, accounting for a 38% decrease in its Rock-Eval S1 peak.
The plates were covered with Breathe-Easy membrane (Diversified Biotech, cat. BEM-1) to prevent evaporation without limiting gaseous and light exchange.
Although the exact source of tritium is unknown in the study area, high level tritium containing items such as gaseous tritium lighting devices, exit signs, watches, or clocks (Murphy et al. 2016), or key chains are very probable to end up with municipal solid waste, in particular when no waste selection policies exist as for the Andralanitra site.
Alkylation, in petroleum refining, chemical process in which light, gaseous hydrocarbons are combined to produce high-octane components of gasoline.
The gaseous products, including light paraffinic and aromatic compounds in the co-pyrolysis are also studied.
The compositional ratios and carbon isotopic signatures of light gaseous hydrocarbons suggest their thermogenic origin.
The exhaust gas mainly contains light gaseous hydrocarbons, which decreases the contamination at the outlet of the reactor.
Investigation of novel detector architectures, different materials and various applications are reported, and the quest for visible light gaseous photon detectors is discussed.
