Alkylaromatic process with removal of aromatic byproducts using efficient distillation

   
   

A process for the production of alkylaromatic hydrocarbons by alkylating aromatic hydrocarbons with olefinic hydrocarbons is disclosed. The olefinic hydrocarbons are produced by dehydrogenating paraffinic hydrocarbons. Aromatic byproducts formed in dehydrogenation are removed using an aromatic byproducts removal zone and either a dividing wall distillation column or thermally coupled distillation columns. The process significantly decreases the cost of utilities in producing alkylaromatics, such as precursors for detergent manufacture.

Um processo para a produção de hidrocarbonetos alkylaromatic alkylating hidrocarbonetos aromatic com hidrocarbonetos olefinic é divulgado. Os hidrocarbonetos olefinic são produzidos dehydrogenating hidrocarbonetos paraffinic. Os byproducts aromatic deram forma no dehydrogenation são removidos usando uma zona aromatic da remoção dos byproducts e uma coluna divisora do distillation da parede ou colunas tèrmica acopladas do distillation. O processo diminui significativamente o custo das utilidades em produzir o alkylaromatics, tal como precursors para a manufatura detergente.

 
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