| 摘要 |
PROBLEM TO BE SOLVED: To provide a heat insulation material of a pipeline capable of effectively heating loss, in a pipeline through which high temperature gas containing hydrogen gas circulates.SOLUTION: In a pipeline in which high temperature gas containing hydrogen gas of 5 vol.% or more flows, at least a part of the periphery of a pipeline is covered with a heat insulation material.SELECTED DRAWING: Figure 2 |
