Method for manufacturing a hydrogen generator

By fixing the upper shelf plate and filling the CO reduction catalyst in a reversed gravity state, the method stabilizes the downstream position and temperature of the CO reduction section, addressing variations in CO concentration in hydrogen generators.

JP7756302B2Active Publication Date: 2025-10-20PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO LTD
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Patent Information

Application Number
JP2022015426
Authority / Receiving Office
JP · JP
Patent Type
Patents
Current Assignee / Owner
Filing Date
2022-02-03
Publication Date
2025-10-20
Estimated Expiration
2042-02-03

AI Technical Summary

Technical Problem

Conventional hydrogen generators experience individual differences in the concentration of CO in hydrogen-containing gas due to variations in the downstream position of the CO reduction section, which are caused by the spherical nature of the CO reduction catalyst and its filling process, leading to inconsistent temperatures and CO concentrations in the generated gas.

Method used

The manufacturing method involves fixing the upper shelf plate of the CO reduction section first, filling the CO reduction catalyst in a reversed gravity state, and then installing the lower shelf plate to maintain a constant downstream position, ensuring uniform catalyst distribution and temperature consistency.

Benefits of technology

This approach stabilizes the downstream position of the CO reduction catalyst, maintaining consistent temperature and reducing individual differences in CO concentration in the hydrogen-containing gas, thereby improving the quality and reliability of hydrogen generation.

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Abstract

To provide a hydrogen generator suppressing individual difference in concentration of CO included in hydrogen-containing gas after a conversion reaction by making a downstream position of a CO-reducing part constant.SOLUTION: A hydrogen generator is manufactured by first performing fixation of an upper shelf board of a CO-reducing part in assembling the CO-reducing part, performing filling of a CO-reducing catalyst under the condition where a gravity direction is inverted with respect to that when the hydrogen generator is used, and installing a lower shelf board of the CO-reducing part at an upstream position of the CO-reducing catalyst. As a result of this, variation in the cubic volume of the CO-reducing catalyst can be absorbed at a position where the lower shelf board of the CO-reducing part is fixed and thereby variation in the position of the upper shelf board of the CO-reducing part can be suppressed.SELECTED DRAWING: Figure 1
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