METHOD FOR DIRECT OXIDATION OF GASEOUS ALKANES Russian patent published in 2012 - IPC C07C31/04 C07C31/08 C07C31/10 C07C31/12 C07C27/12 C07C29/50 B01J19/24 

FIELD: chemistry.

SUBSTANCE: method involves partial oxidation of an alkane contained in a gaseous crude stream, which contains an alkane, with oxygen contained in an oxygen-containing crude stream. Said method involves: forming a reactor system, having a back-mixing reaction chamber with injection mixing, which is connected to a tubular flow reactor, wherein said back-mixing reaction chamber with injection mixing ensures dwell time from about 0.05 s to about 1.5 s; feeding said crude stream containing alkanes and said oxygen-containing crude stream into said back-mixing reaction chamber with injection mixing; initiating formation of alkyl free radicals in said back-mixing reaction chamber with injection mixing to obtain a product stream from the back-mixing reaction chamber with injection mixing, containing oxygen, said alkane and at least a portio of said alkyl free radicals; feeding the product stream obtained in the back-mixing reaction chamber with injection mixing into the tubular flow reactor; and converting said product stream obtained in the back-mixing reaction chamber with injection mixing into said alkyl oxygenate in said tubular flow reactor; where said alkane is selected from group consisting of methane, ethane, propane and butane.

EFFECT: invention enables to obtain the end product using an efficient and cheap method without using a catalyst.

34 cl, 2 ex, 36 dwg