Ionic Liquid Catalyzed Alkylation of Extracted Oil from Fluid Catalytic Cracking Slurry

The ionic liquid Et3NHCl•2AlCl3 catalyzed alkylation of the extracted oil from FCC slurry with 1-octadecene has been investigated here. The reaction conditions (such as catalyst dosage, molar ratio of extracted oil to 1-octadecene, reaction temperature and reaction time) have been optimized through measurements of the conversion ratio of reactants and the chemical structure of alkylated product. Under the optimal reaction conditions, the conversion ratio of extracted oil and 1-octadecene can reach up to 78.6% and 79.3% respectively, and yielding good selectivity of monoalkylated product with average molecular mass of 470 simultaneously. The experimental results indicate that Et3NHCl•2AlCl3 possess not only good alkylation catalytic activity to graft long alkyl chains onto PAHs, but also excellent recyclability (leave 95% activity after eight runs of reuses). This study suggested a promising application of the extracted oil from FCC slurry as raw material to produce high quality petroleum sulfonates.