Universal Oil Products Company

Uop Lcc

Robert F Zabransky

Robert F Anderson

Anthony G Vickers

Alkylaromatic hydrocarbons are dehydrogenated in admixture with steam, with the dehydrogenation zone effluent being condensed to form a water stream which is purified in a stripping column. The stripping column is reboiled by indirect heat exchange against the effluent of the dehydrogenation zone. The steam-rich overhead vapor stream of the stripping column is mixed directly into the dehydrogenation zone feed stream without intermediate condensation or pressurization.

Alkylaromatic hydrocarbon dehydrogenation process

A continuous catalytic alkylation reaction and catalyst reactivation process is carried out using a simulated moving catalyst bed to effect simultaneously in different zones of a multi-zone, fixed catalyst bed, an alkylation reaction and a reactivation of catalyst. The catalyst of the present invention is a crystalline aluminosilicate zeolite composited with a Group VIII metal hydrogenation agent, and the reactivation medium utilized includes alkylatable hydrocarbon and hydrogen.

Simulated moving bed alkylation process

A control system for regulating the reaction zone temperature in a process for the acid-catalyzed reaction of an isoparaffin with an olefinic feed stream containing mixed olefins. Hydrocarbon analyzers produce process output signals which are representative of composition characteristics of the fresh olefinic feed stream and the liquid alkylate product. These process output signals are transmitted to computer/comparator means which develops an output signal as a function thereof. The computer output signal is employed to adjust the reaction zone temperature to obtain the optimum consistent with a given feed composition and desired alkylate product quality. The control system rapidly compensates for continuing changes in feed composition which, at a fixed reaction zone temperature, would otherwise adversely affect the alkylate product quality.

HF alkylation process and reaction temperature control system

A control system for regulating the reaction zone temperature in a process for the acid-catalyzed alkylation of an isoparaffin with a mixed olefinic feed stream. Composition characteristics of the liquid alkylate product and the olefinic feed stream are determined, and representative output signals transmitted to computer/comparator means which generates a computer output signal in response to, and as a function thereof. The computer output signal is employed to adjust the reaction zone temperature, for a given olefinic feed composition, in order to maximize the octane rating of the liquid alkylate product. The control system effects rapid compensation for feed composition changes which would otherwise adversely affect the product octane rating.

HF alkylation reaction temperature control system

A control system for regulating the reaction zone temperature in a process for the acid-catalyzed reaction of an isoparaffin with an olefinic feed stream containing mixed olefins. Hydrocarbon analyzers produce process output signals which are representative of composition characteristics of the olefinic feed stream and the liquid alkylate product. These process output signals are transmitted to computer/comparator means which develops an output signal as a function thereof. The computer output signal is employed to adjust the reaction zone temperature to obtain the optimum consistent with a given feed composition and desired alkylate product quality. The control system rapidly compensates for continuing changes in feed composition which, at a fixed reaction zone temperature, would otherwise adversely affect the alkylate product quality.

HF Alkylation reaction temperature control system

A control system for regulating the reaction zone temperature in a process for the acid-catalyzed alkylation of an isoparaffin with an olefinic feed stream containing mixed olefins. The reaction zone temperature is adjusted to obtain the optimum for a given feed composition, in order to maximize the octane rating of the ultimate normally liquid alkylate product. The control system effects rapid compensation for continuing changes in feed composition which, at a fixed reaction zone temperature, otherwise adversely affect the octane rating.

Control system for HF alkylation

A control system and method for regulating the reaction zone temperature in a process for the acid-catalyzed alkylation of an isoparaffin with an olefinic feed stream containing mixed olefins. The reaction zone temperature is adjusted to obtain the optimum for a given feed composition, in order to maximize the octane rating of the ultimate normally liquid alkylate product. The control system effects rapid compensation for continuing changes in feed composition which, at a fixed reaction zone temperature, otherwise adversely affect the octane rating.

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Oak Brook, IL, United States of America

Robert F Zabransky