Mobil Oil Corporation

Rafi Jalkian

Tomas R Melli

Jonathan E Child

Sergei Yurchak

Lawrence J Altman

Anagha A Gupte

Edward H Edelson

Kenneth J Del Rossi

Michael Alan Better

A method and system for controlling an HF alkylation system comprising a reactor, a settler, an HF acid regenerator and a source of fresh HF acid wherein a stream of olefins and a stream of isobutanes are contacted in the reactor in the presence an HF acid catalyst. At least the reactor feed is sampled, and the sample is passed to an analyzer using an attenuated total reflectance cell. Signals are generated which are representative of infrared spectra of the samples in a range providing information on the amount of at least one of HF, water, ASO and sulfolane. These signals are simultaneously determined and generated because all absorb in the same spectral region. This aspect provides for viewing these distortions of the main HF absorption band to quantify these three components. The infrared spectra signals are compared with stored signals to generate control signals; and at least one of HF, water and sulfolane fed to the reactor feed is adjusted in response to the control signal.

Control of low inventory alkylation unit

A process is disclosed for regenerating a spent liquid acid catalyst comprising the steps of:

Liquid acid regeneration method

The present invention provides a method for separating conjunct polymers which are formed as byproducts of acid catalyzed isoparaffin-olefin alkylation and sulfolane from a mixture containing conjunct polymers, sulfolane, and hydrofluoric acid comprising the sequential steps of:

Method for separating conjunct polymeric byproducts from mixture

Sulfolane purification by hydrocarbon extraction

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Mantua, NJ, United States of America

Rafi Jalkian