CHARACTERIZATION AND DEPOSIT FORMING-TENDENCY OF POLAR COMPOUNDS IN CRACKED COMPONENTS OF GASOLINE. PART 1 GENERAL SEPARATION SCHEME AND IDENTIFICATION OF BASIC FRACTION

Polar compounds were isolated from one gollon of FCC by acid-base extraction followed by aluminum oxide adsorption chromatography. Fractions were tested with an Induction System Deposit (ISO( apparatus and the basic fraction was characterized by hydrogen-1, carbon-13 and nitrogen-15 NMR spectroscopy...

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Published in:Fuel science & technology international 1993-01, Vol.11 (5-6), p.697-712
Main Authors: Martin, Pedro, McCarty, Frances, Ehrmann, Ursula, Lima, Lola De, Rojas, Anibal
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Language:English
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description Polar compounds were isolated from one gollon of FCC by acid-base extraction followed by aluminum oxide adsorption chromatography. Fractions were tested with an Induction System Deposit (ISO( apparatus and the basic fraction was characterized by hydrogen-1, carbon-13 and nitrogen-15 NMR spectroscopy and GC/MS. The fraction resulting from the acid-base extraction and direct elution from the chromatographic column showed a low sulfur content (114 ppm( and no detectable nitrogen. Fractions obtained by elution from the chromatographic column with ethyl acetate and methanol showed a high tendency to form deposits as tested by the ISD apparatus. The main compounds in the basic fraction were identified as methyl and dimethylanilines that showed low tendencies to deposit formation in ISD.
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title CHARACTERIZATION AND DEPOSIT FORMING-TENDENCY OF POLAR COMPOUNDS IN CRACKED COMPONENTS OF GASOLINE. PART 1 GENERAL SEPARATION SCHEME AND IDENTIFICATION OF BASIC FRACTION
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