Badger Licensing LLC

Stone & Webster Process Technology, Inc.

Washington Group International, Inc.

Douglas Hubbell

Maruti Bhandarkar

Vijay Nanda

Brian Maerz

James S Law

Edward P Hunt

Dino Pizzelli

Philippe W M Rutten

Glenn D Nasman

In a process for alkylating an aromatic hydrocarbon feedstock with an olefin feedstock, at least one of the aromatic hydrocarbon and olefin feedstocks is passed through a pretreatment unit containing an adsorbent such that the adsorbent removes impurities contained by the feedstock. Passage of the at least one feedstock through the pretreatment unit is then terminated and a heated inert gas is passed through the pretreatment unit such that the inert gas desorbs impurities from the adsorbent to produce an inert gas effluent stream containing the desorbed impurities. A condensable fluid is added to at least part of the inert gas effluent stream such that at least a portion of the impurities contained therein condense with said fluid to leave a purified inert gas stream, which is recycled to the pretreatment unit.

Aromatics alkylation process

Methods and apparatus are disclosed for mixing fluid streams of different compositions to minimize fluid condensation inside a mixing vessel where the objective is to produce an all-vapor mixture product.

Condensation reduction in fluid mixing

A continuous process for integrated processing of a C aromatic hydrocarbon stream is disclosed for recovery of a high purity meta-xylene product in conjunction with efficient separation and recovery of purified para-xylene and, optionally, purified ortho-xylene products.

Production of high purity meta-xylene

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Sudbury, MA, United States of America

Douglas Hubbell