Abstract: A chemical reaction apparatus includes: a horizontal flow-type reactor inside of which has been partitioned into multiple chambers by a partition plate, and a liquid content horizontally flows with an unfilled space being provided thereabove; a microwave generator that generates microwaves; and at least one waveguide that transmits the microwaves generated by the microwave generator to the unfilled space in the reactor. The reactor has a shape in which an area of a liquid surface does not change even in a case where a height of the liquid surface changes according to a change in an amount of the content.

Abstract: A chemical reaction apparatus includes: a horizontal flow-type reactor inside of which has been partitioned into multiple chambers by multiple partition plates, and a liquid content horizontally flows with an unfilled space being provided thereabove; a microwave generator that generates microwaves; and at least one waveguide that transmits the microwaves generated by the microwave generator to the unfilled space in the reactor. The content flows over each of the partition plates, and, in each chamber, a weir height on an inlet side is higher than a weir height on an outlet side by at least an overflow depth at the partition plate on the outlet side.

Abstract: A chemical reaction apparatus includes a horizontal flow-type reactor in which a content horizontally flows with an unfilled space being provided thereabove, a microwave generator that generates microwaves, and at least one waveguide that transmits the microwaves generated by the microwave generator to the unfilled space in the reactor.

Abstract: An oil-based material-producing method includes a microwave irradiation step of irradiating oil-based material-producing microorganisms with microwaves. The oil-based material-producing method may also include a collecting step of collecting an oil-based material produced by the oil-based material-producing microorganisms after the microwave irradiation step.