From a Fraunhofer IKTS press release.
Researchers at the Fraunhofer-Gesellschaft have developed a technology for the energy-efficient and economic separation of hydrogen from natural gas. This membrane technology, a gas separator, makes it possible for the two substances to be routed through the national natural gas grid together and then isolated from one another at their final destination. A major step forward in the transportation and distribution of hydrogen as an energy source.
This material could play a key role in the movement towards hydrogen as an energy source. Hydrogen is seen as a beacon of hope for establishing a CO2-free energy supply. If hydrogen is collected from renewable sources such as wind and solar power, there are no climate-damaging emissions.