ADSORPTION AND DEHYDROSULFURIZATION OF ALIPHATIC THIOLS ON ZEOLITES MARIA ZIOLEKa and MASATOSHI SUGIOKAb aAdam Mickiewicz Grunwaldzka 6, 60-780 Poznan, POLAND University, Faculty of Chemistry, Muroran Institute 27-1 Muroran bDepartment of Applied Chemistry, of Mizumoto-cho, Technology, JAPAN 050-8585, Received 5 23 1999 1999; January accepted July 1. INTRODUCTION In the three decades has evolved into past petroleum refining increasingly complex chemical Crude which consists of operations . oil, predominantly hydrocarbons, but on its contains concentrations depending origin, moderately large of heteroatoms, transformed into that final user is meet products (with compositions requirements) a wide of chemical reactions such as through variety catalytically promoted and heteroatom isomerization, aromatization, hydrogenation, alkylation, cracking removal Sulfur is the most abundant heteroatom in . invariably impurity petroleum crudes. In the low sulfur is in the form of boiling naphtha fraction, mainly present or For the kerosene and oil middle thiols, sulfides, disulfides, thiophenes. gas benzo- and distillate fractions, thiophenic compounds containing dibenzothiophene structures dominate . Since a role in sulfur catalysis plays key refining processes, compounds interact with the surface. on the the sulfur catalyst Depending catalyst nature, organic can to various block the active or compounds decompose products, centres, modify of the Bronsted acid
Research on Chemical Intermediates – Springer Journals
Published: Jan 1, 2000
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