パイプラインによる水素輸送のための基準整備に向けた技術検討の概要

抄録

Pipelines are one of the most practical and economical measures to transport hydrogen-gas from its production site to urban consumption areas. It is necessary for regulators and operators to get public acceptance on the hydrogen pipelines which are possibly buried under public roads, and to develop technical standards resulting in the secure pipeline systems. This paper briefly reviews past and present investigation works regarding a safety aspect leading to the standards for the secure pipeline system carrying hydrogen; the works in North-America and Europe for higher-pressured hydrogen pipelines, which have more than 1 MPa of internal pressure, and those by Ministry of Economy, Trading and Industry (METI) in Japan for hydrogen distribution pipelines having lower internal pressure.