Phillips Petroleum Company

Charles F Cook

George E Hays

James B Kimble

Alan D Eastman

Jack P Guillory

Thomas W Schmidt

A paraffin or mixture of paraffins having from 2 to 5 carbon atoms is oxidatively dehydrogenated in the presence of a cobalt based catalyst composition which has been calcined in the absence of oxygen. The catalyst composition comprises cobalt; phosphorus; at least one promoter selected from the group consisting of zinc, titanium, zirconium, niobium, indium, lead and bismuth; at least one alkali metal and oxygen. The catalyst composition may also contain sulfur and/or a halogen. If the feed to the oxidative dehydrogenation process contains paraffins having more than two carbon atoms, some cracking of such paraffins will also occur at the conditions at which the oxidative dehydrogenation process is carried out.

Oxidative dehydrogenation and cracking of paraffins using a promoted

Oxidative dehydrogenation and cracking of paraffins with a promoted

Natural gas having a high carbon dioxide content is contacted with sea water in an absorber at or near the bottom of the ocean to produce a purified natural gas.

Gas purification

A process and apparatus for removing an impurity from a gas by means of selective absorption of a gas impurity by a suitable absorbent. The absorbent and gas are contacted in a cocurrent flow contacter which is submerged in the absorbent. The flow of the absorbent in the absorber can be induced by means of the dispersion of the gas in the absorbent thereby avoiding the need for pumps or other means to induce circulation. The process and the apparatus can be used for the removal of carbon dioxide from natural gas with the use of salt water, e.g., sea water as the absorbent. The invention is specially useful for removing carbon dioxide from natural gas obtained from a natural gas well located in off shore waters that produces a gas with a high concentration of carbon dioxide as the apparatus can be erected on the ocean floor and use the surrounding sea water as absorbent.

Natural gas purification

Natural gas enriched in methane is produced from underground natural gas reservoirs of high CO.sub.2 content by water flooding to absorb the CO.sub.2 within the formation.

Natural gas recovery method

The difference in concentration of a selected isotope in two materials is measured by directing beams of the materials toward the inlet of a mass spectrometer. A shutter is positioned in each beam to pass the two beams at predetermined different frequencies. The output signal from the mass spectrometer is applied to two synchronous detectors, each of which receives a reference signal representative of the frequency at which a respective beam is passed to the mass spectrometer. The output signals from the two detectors are compared.

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Bartlesville, OK, United States of America

Charles F Cook