000			02019nab a2200205 4500
005			20260520000839.0
008			260224s2009 xxu
245	0	0	_aCharacterization of heteroatoms in residue fluid catalytic cracking (RFCC) diesel by gas chromatography and mass spectrometry
260			_a _b _cnov./dic. 2009
270			_a09/06/2010 ; 09/06/2010
300			_a8 p. ; 6062-6069
520			_aTranscripción del resumen del autor. Nitrogen-, sulfur-, and oxygen-containing hydrocarbons in a residue fluid catalytic cracking (RFCC)-derived diesel were characterized by a gas chromatograph equipped with a pulsed flame photometric detector and an electron impact, ammonia chemical ionization mass spectrometer. Caustic and acid extractions on RFCC diesel were performed to isolate the phenolic and basic nitrogen compounds, respectively. The fraction of RFCC diesel that contained the basic nitrogen compounds was reacted with acetic anhydride to allow for chromatographic separation of amino-aromatic compounds from the rest of the non-reactive basic nitrogen compounds. The majority of basic nitrogen compounds were anilines, as expected. Non-basic nitrogen compounds in RFCC diesel were alkyl indoles and alkyl carbazoles. Double-ring and poly-aromatic amines were identified in RFCC diesel by the acetylation reaction. The majority of sulfur compounds in RFCC diesel were alkyl benzothiophenes and dibenzothiophenes, after being isolated by Pd2+ ligand-exchange chromatography. Dihydrobenzohiophenes and dihydronaphthanthiophenes, despite a low concentration, were also identified in the subfractions. The majority of oxygen compounds in RFCC diesel were phenolic compounds. In addition to alkylphenols, bicyclic and polycyclic phenols were identified and characterized in the acidic fraction.
581			_a6
773	0		_tEnergy & fuels _g23
942			_cARTICULO
100	1		_aShi, Quan _942416
100	1		_aXu, Chunming _939312
100	1		_aZhao, Suoqi _926203
999			_c170853 _d170853