Patent ID: 8083996

Claim:
A thermal siphon reactor comprising: a reactor tube in which a catalytic reaction of a reaction source occurs; a catalyst layer which is porous, facilitates gas generation by being contacted with the reaction source, and is disposed in the reactor tube; and a liquid absorption pad which is separably attached to a lower end of the reactor tube, and absorbs a liquid reaction source and transfers the liquid reaction source to the catalyst layer, wherein the liquid absorption pad is attached to the lower end of the reactor tube when a pressure inside the reactor tube is lower than a predetermined level, and the liquid absorption pad is separated from the lower end of the reactor tube when a pressure inside the reactor tube is higher than a predetermined level, wherein, in the reactor tube, at least one hollow cylindrical through hole extending from one end of the reactor tube to another end of the reactor tube, and wherein at least a side of the hollow cylindrical through hole is formed by said catalyst layer, and said hollow cylindrical through hole forming a convection channel through which a reaction product is discharged passes through the reactor tube in the lengthwise direction of the reactor tube.