Removal of polar contaminants from aromatic feedstocks

   
   

A process is described for removing polar compounds from an aromatic feedstock which contains polar compounds. The process comprises contacting the feedstock in an adsorption zone at a temperature of less than or equal to 130.degree. C. with an adsorbent selective for the adsorption of said polar compounds and comprising a molecular sieve having surface cavities with cross-sectional dimensions greater than 5.6 Angstroms. A treated feedstock substantially free of said polar compounds can then be fed to an alkylation zone for contact under liquid phase alkylation conditions with an alkylating agent in the presence of an alkylation catalyst.

Um processo é descrito removendo os compostos polares de um feedstock aromatic que contenha compostos polares. O processo compreende contatar o feedstock em uma zona do adsorption em uma temperatura de menos do que ou do igual a 130.degree. C. com um adsorbent seletivo para o adsorption de compostos polares ditos e de compreender um sieve molecular que tem as cavidades de superfície com dimensões de seção transversal mais extremamente de 5.6 angstroms. Um feedstock tratado substancialmente livre de compostos polares ditos pode então ser alimentado a uma zona do alkylation para o contato sob condições líquidas do alkylation da fase com um agente alkylating na presença de um catalizador do alkylation.

 
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