CO2-Free Hydrogen Supply Chain Project and Risk Assessment for the Safety Design

We, at Kawasaki Heavy Industries, have proposed a "CO2-Free H2 supply chain" using abundant brown coal of Australian origin as the energy source. This chain will store CO2 generated during the process for producing hydrogen from brown coal in a project (Carbon Net) that the Australia Government is promoting. Thus, Japan can import CO2-free hydrogen. The supply chain consists of the hydrogen production system, the hydrogen transport/storage system, and the hydrogen use system. Related to their designs, we have to consider their hazards, polluted scenarios and safety measures via a safety assessment process that is compliant with international risk assessment standards. To verify safety designs, related experiments and analyses will be conducted. This paper describes the approach to safety design for especially the related liquid hydrogen facilities.