Hydrogen is a clean-burning gas that could help to tackle climate change by reducing our dependence on fossil fuels. But storing and transporting hydrogen is expensive and technically challenging, typically requiring high-pressure gas tanks or cryogenic systems that operate at very cold temperatures.
One promising alternative involves incorporating hydrogen into carbon-based molecules known as Liquid Organic Hydrogen Carriers (LOHCs), which are safer and easier to handle than the gas itself. KAUST researchers have shown that certain LOHCs could reliably store hydrogen underground in depleted oil fields, and then help to recover residual oil from those reservoirs. The work is published in the journal Fuel.
“Together, these advantages make LOHCs a compelling alternative to conventional hydrogen storage technologies,” says Hussein Hoteit, who led the research team.
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