processo de desaromatização de hidrocarbonetos por adsorção

PROBLEM TO BE SOLVED: To provide an effective adsorption for separation of aromatics from hydrocarbon containing much aromatic contaminants and capable of desulfurization and energy conservation or the like by contacting serially connected beds of molecular sieves. SOLUTION: This adsorption process...

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Hauptverfasser:	KEIJI MAESHIRO, WILSON KENZO HUZIWARA, JOSE ANTONIO VIDAL VIEIRA, RICARDO RODRIGUES DA CUNHA PINTO, FERNANDO ANTONIO DUARTE SANTIAGO, PAULO TAVARES DE SOUZA
Format:	Patent
Sprache:	por
Schlagworte:	ACYCLIC OR CARBOCYCLIC COMPOUNDS CHEMISTRY CRACKING HYDROCARBON OILS FUELS LUBRICANTS METALLURGY MINERAL WAXES ORGANIC CHEMISTRY PEAT PETROLEUM, GAS OR COKE INDUSTRIES PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVEHYDROGENATION, OLIGOMERISATION, POLYMERISATION RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, ORGASES REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS REFORMING OF NAPHTHA TECHNICAL GASES CONTAINING CARBON MONOXIDE
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide an effective adsorption for separation of aromatics from hydrocarbon containing much aromatic contaminants and capable of desulfurization and energy conservation or the like by contacting serially connected beds of molecular sieves. SOLUTION: This adsorption process includes following steps; a hydrocarbon having 45-300 deg.C boiling point and including 0.5-15 wt.% aromatic carbon (Z) is adsorbed on serially connected beds A, B, C, D, E, F and G of molecular sieves for the compound Z (e.g. silicagel, zeolite or alumina) and purged with a controlled cold desorbing liquid so as to recover paraffin/isoparaffin/ naphthene-based hydrocarbons and the adsorbed compound Z is desorbed with a heated desorbing liquid by the aid of thermal swing temperature.