The demand for hydrogen (H2) is rapidly increasing in chemical and petrochemical industries due to the continued growth in demand for low sulfur fuels and to support unconventional oil sands development. Increased demand for hydrogen, while good for the industrial gas industry, leads to increased concern about CO2 emissions, as most hydrogen is produced using methods that emit CO2.
This makes the capture and storage of CO2 from hydrogen production an interesting option for the reduction of CO2 emissions.
There are several ways to reduce greenhouse gases emitted from fossil fuel-based plants including CO2 capture. Today, the principal technology used for CO2 capture from hydrogen plants is based on chemical absorption, but this process requires large amounts of energy, thereby reducing its environmental benefit. And it is costly, currently in the range of EUR 30–40/ton of CO2 captured.
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