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A modular SMR unit provides onsite hydrogen production

By Scott Jenkins |

Standardized steam-methane-reforming (SMR) reactor units recently commercialized by Air Liquide (Paris, France; www.airliquide.com) allow direct hydrogen production at customer sites at costs much lower than those associated with alternative H2 supply modes, including electrolysis and transporting compressed or liquefied H2. Because of the technology’s specific applicability to facilities that produce silicon photovoltaic (PV) cells, the SMR unit, known as HYOS-R-10k, was given the 2010 Solar Industry Award for PV-materials enabling by Solar, an industry trade publication. Air Liquide says that onsite hydrogen-generation technologies previously available had not generally met the H2 needs for typical PV cell producers. Source: Air Liquide The compact HYOS-R-10k modular hydrogen-production unit is constructed on a unique skid that contains all system components. To generate hydrogen, natural gas is mixed with steam and fed into high-alloy reformer catalyst tubes, where synthesis gas is produced (diagram). This process stream enters a shift converter, where additional H2 is produced via a water-gas shift (WGS) reaction and CO is converted to CO2. The gas stream is then cooled and fed into a unique pressure-swing adsorption (PSA)…
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