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Exxon Research and Engineering Company

Sheldon Bodnick

Thomas M Stark

John C Brice

In the hydrodesulfurization of sulfur-containing heavy hydrocarbon oils, water is injected into the hydrotreating gas and vaporized at a temperature below 450.degree. F. to produce a steam-containing hydrotreating gas which is combined subsequently with the sulfur-containing heavy hydrocarbon oil.

Hydrodesulfurization process

A process for cooling and condensing natural gas in a plurality of convective heat exchange stages by means of multicomponent refrigerants. The first refrigerant cools the natural gas and the second refrigerant from ambient temperature in a first heat exchange stage. Then the second refrigerant cools the natural gas further in a second stage and afterward is compressed while still below ambient temperature to an intermediate pressure where it is joined by the first refrigerant for further compression and cooling to ambient temperature before separating the two refrigerants and repeating the refrigeration cycle.

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Rockaway, NJ, United States of America

Sheldon Bodnick