METHOD OF OBTAINING OLEFINS Russian patent published in 2008 - IPC C07C2/84 C07C11/02 

FIELD: chemistry.

SUBSTANCE: method involves partial burning of a mixture of methane, hydrogen, oxygen and optionally hydrocarbons, which are different from methane in contact with a catalyst, capable of maintaining burning beyond the normal upper flammable limit of fuel, where they react with formation of product, including one or more olefins. In the mixture coming into contact with the above mentioned catalyst, capable of maintaining burning beyond the normal flammable limit of fuel, can be less than 20 molar % (converted to the overall quantity of the hydrocarbons) of those hydrocarbons which are different from methane. In the mixture coming into contact with the catalyst, the volume ratio of hydrogen to oxygen ranges from 5:1 to 1:1 and methane and oxygen are put into the autothermal cracking device in a mixture at hourly average feed rate of more than 70000 h^-1.

EFFECT: invention pertains to the method of obtaining olefins from methane.

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