Hydrogen generator

Abstract

To provide a hydrogen generator that can stably produce hydrogen-containing gas and has excellent reliability. [Solution] The hydrogen generator 100 of this disclosure has a four-layer shell structure comprising a first partition wall 101, an inner cylinder 102, a second partition wall 103, and an outer cylinder 104. The hydrogen generator 100 includes a first exhaust gas path 106 that guides exhaust gas Ge from below upward, a second exhaust gas path 107 that communicates with the first exhaust gas path 106 and guides exhaust gas Ge from the inside out, a hydrogen-containing gas path 109 that guides hydrogen-containing gas G3 from below upward, and a partition portion 123 that is arranged in the space between the outer circumferential surface of the second partition wall 103 and the inner circumferential surface of the outer cylinder 104 and separates the second exhaust gas path 107 and the hydrogen-containing gas path 109. In a cross-section CS parallel to and passing through the central axis X of the hydrogen generator 100, the inner edge portion 123a of the partition portion 123 is located above the outer edge portion 123b of the partition portion 123.

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