Process for reducing benzene content in gasoline

Details Process for reducing benzene content in gasoline Process for reducing benzene content in gasoline

1990-12-31

1992-06-09

Pal, Asok

Chemistry of hydrocarbon compounds

Aromatic compound synthesis

By condensation of entire molecules or entire hydrocarbyl...

585323, C07C 266

Patent

active

051208903

ABSTRACT:
A process is disclosed for reducing benzene and toluene content in light gasoline streams comprising benzene or benzene and toluene but comprising substantially no other aromatic-hydrocarbons. The light gasoline streams may be prepared by distillation of full boiling range gasoline streams from catalytic reforming or fluidized-bed catalytic cracking units. High alkylating agent to benzene ratios are utilized in the presence of a solid alkylation catalyst to achieve a benzene conversion of 70% of more in a single pass through the reaction zone. Alkylating agent is simultaneously injected into the alkylation zone at two or more separate injection points to minimize undersirable side reactions. The alkylation product may be recovered and blended with other gasoline components to produce automotive fuel which is low in benzene content and high octane in rating.

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