| abstract |
Alkylated aromatic functional fluids are prepared by alkylating a light cycle oil with an alkylating agent, such as an alpha C14-olefin or coker gas oil, over a crystalline metallosiicate catalyst, preferably an aluminosilicate, including MCM-22, USY or an acid treated kaolin clay. The process produces an improved light cycle oil in which the heteroatom content of the oil is reduced and a high quality synthetic alkylated aromatic functional fluid base stock boiling above 600 DEG F. The reactor temperature can be elevated to increase the functional fluid yield and the extent of heteroatom removal. |