Texaco Inc.

Lee K Gilmer

Gerald V Nelson

Charles A Ganster

Kenneth D Miller

Mary E Callaghan

Charles H Schrader

James Mudra, Iv

Kenneth Roy Comey, Iii

George P Partridge, Jr

Kenneth R Comey, Iii

A safety apparatus has been found for recovering an airborne hydrogen fluoride release in a hydrocarbon alkylation process. The safety apparatus comprising containment baffles and hydrogen fluoride detectors. Hydrogen fluoride detectors activate water flood means which discharge into the containment baffles. The water flood containing essentially all of the hydrogen fluoride release is recovered for disposal. Recoveries of 90 wt % have been demonstrated.

Environmental safety apparatus for airborne hydrogen fluoride recovery and method

A safety apparatus has been found for controlling the release of flashing hydrogen fluoride in a hydrocarbon alkylation process. The safety apparatus comprises containment baffles enclosing major process vessels. The safety apparatus may be used in combination with a liquid onium polyhydrogen fluoride complex to substantially reduce the vapor cloud produced from a leaking process vessel.

Hydrogen fluoride alkylation apparatus and vapor recovery method

The hydrogen consumption in the catalytic desulfurization of hydrocarbon oils is reduced by the incorporation in the catalyst of a small amount of arsenic.

Hydrodesulfurization of hydrocarbon oils with a catalyst containing

A desulfurization catalyst is activated by being heated to a temperature between about 750.degree. and 850.degree. F. in the presence of the charge stock to be desulfurized during the initial stages of the on-stream period. In a preferred embodiment the catalyst, prior to the heat treatment, is sulfided at a low temperature and low pressure. The resulting catalyst effectively desulfurizes a petroleum hydrocarbon charge stock with reduced hydrogen consumption.

Treatment of desulfurization catalyst and its use

A desulfurization catalyst is activated by being heated to a temperature between about 750.degree. and 850.degree.F. in the presence of the charge stock to be desulfurized during the initial stages of the on-stream period. In a preferred embodiment the catalyst, prior to the heat treatment, is sulfided at a low temperature and low pressure. The resulting catalyst effectively desulfurizes a petroleum hydrocarbon charge stock with reduced hydrogen consumption.

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Nederland, TX, United States of America

Lee K Gilmer