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Silicon species are becoming emergent contaminants in the oil and gas industry due to their severe poisoning effect on the hydrotreatment (HDT) catalysts. Using an experimental pilot plant, fresh and representative samples of PDMS degradation under thermal cracking of hydrocarbons were produced. To follow the evolution of silicon species, the gas fraction was immediately analyzed by GC/TOFMS after...
Since the production of crude oil may not meet the increasing demand in the next future, coal liquefaction products have sparked great interest as one of the possible substitutes of petroleum in the transportation field. Speciation of oxygen in direct coal liquefaction products is essential considering the important role of oxygenated compounds in coal conversion reactions. This study attempts to...
A method for the speciation of silicon compounds in petroleum products was developed using gas chromatography coupled to mass spectrometry (GC–MS). Prior to analysis, several precautions about storage and conservation were applied for all samples. In spiked gasoline samples, limits of detection between 24 and 69μgkg −1 for cyclic siloxanes (D 4 –D 6 ) and between 1 and 7μgkg...
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