Partial oxidative coupling catalyst and olefin production device and olefin production method using catalyst
A partial oxidative coupling catalyst has a structure in which a component represented by M 2 ZrO 3 is supported on a support, where M represents an alkali metal.
1 . An olefin production device for producing an olefin from a raw material gas containing methane, comprising:
at least one reactor containing a partial oxidative coupling catalyst, and
a plurality of the reactors connected in series,
wherein the partial oxidative coupling catalyst comprises a support and a component represented by M 2 ZrO 3 supported on the support, where M represents an alkali metal.
2 . The olefin production device according to claim 1 , further comprising a cooler disposed between adjacent reactors.
3 . An olefin production method for producing an olefin from a raw material gas containing methane, comprising:
a first reaction step of performing partial oxidative coupling of methane in the raw material gas by using a partial oxidative coupling catalyst,
wherein the partial oxidative coupling catalyst comprises a support and a component represented by M 2 ZrO 3 supported on the support, where M represents an alkali metal.
4 . The olefin production method according to claim 3 , comprising a second reaction step of performing partial oxidative coupling of methane in an effluent gas of the first reaction step by using the partial oxidative coupling catalyst.
5 . The olefin production method according to claim 4 , further comprising a step of cooling the effluent gas between the first reaction step and the second reaction step.
6 . The olefin production method according to claim 4 , wherein each of a flow velocity of a reactant gas obtained by mixing the raw material gas and oxygen in the first reaction step and a flow velocity of a reactant gas obtained by mixing the effluent gas and oxygen in the second reaction step is 10 to 100 cm/sec.