Shell Oil Comapny

Johannes L Den Boestert

Johan G Bitter

Jayantilal B Rajani

Richard Hugh Clark

Thijme Last

Hendrik C Rijkens

Wilhelmus J Weeres

Michel Guirguis

A method of treating sour liquefied petroleum gas comprising removing hydrogen sulfide from the sour liquefied petroleum gas by:

Method of treating sour liquefied petroleum gas

Process for reducing the metal content of a hydrocarbon feed mixture by reverse osmosis, comprising contacting the feed mixture substantially boiling in the range between about 100.degree. and about 350.degree. C. and containing at most about 1000 parts per billion by weight (ppbw) of metal(s) with a metal-selective membrane to give a hydrocarbon permeate stream having a metal content which is less.

Process for reducing the metal content of a hydrocarbon mixture

The invention relates to a process for the separation of a phenol from a mixture obtained by the carboxylation of the phenol and containing phenol, phenolate and the carboxylation products thereof, which process comprises separation carried out by selectively absorbing the phenol into the wall of a membrane, solubilizing the phenol in the membrane matrix, diffusing the phenol through the membrane and desorbing the phenol from the other wall.

Process for the separation of a phenol

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Amsterdam, Netherlands

Johannes L Den Boestert