HYDROGEN HEATING APPARATUS FOR BLAST FURNACES, HYDROGEN HEATING METHOD FOR BLAST FURNACES, AND BLAST FURNACE OPERATION METHOD
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United States of America
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Issued Date -
Nov 28, 2024
app pub date -
Aug 15, 2022
filing date -
Aug 15, 2022
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Abstract
A hydrogen heating device for a blast furnace includes: a sealed container configured to allow a hydrogen-based gas to be led in; a heat generating element provided inside the sealed container and configured to generate heat by occluding and discharging hydrogen; and a temperature adjustment unit configured to adjust a temperature of the heat generating element. The heat generating element includes one or more stacked bodies each including a support made of at least one of a porous body, a hydrogen permeable film, and a proton conductor, and a multilayer film supported by the support. The multilayer film has a first layer made of a hydrogen storage metal or a hydrogen storage alloy and a thickness less than 1000 nm, and a second layer made of a hydrogen storage metal or a hydrogen storage alloy different from the first layer, or ceramics and having a thickness less than 1000 nm.
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