PNNL

Abstract

Efficient storage of hydrogen is one of the biggest challenges towards a potential hydrogen economy. The storage of hydrogen in liquid carriers is an attractive alternative to compression or liquefaction at low temperatures. Liquid carriers can be stored cost effectively and transportation and distribution can be integrated into existing infrastructures. The development of efficient liquid carriers is part of the work of the International Energy Agency Task 40: Hydrogen-Based Energy Storage. Here, we report the state-of-the-art for ammonia and closed CO2-cycle methanol-based storage options as well for liquid organic hydrogen carriers.