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A new technology for producing hydrogen
Date:2/13/2013

e designed reaction unit was used and which comprises two stages: the thermal and the catalytic stages. In the thermal stage (in which the bio-oil is heated) the controlled deposition of the pyrolytic lignin takes place and this minimizes the operational problems and the deactivation of the catalyst. That way the compounds obtained in the thermal stage are more susceptible to being transformed.

In addition, a third stage has been incorporated into the process: the CO2 capture intended to intensify the production of H2 increases its purity and cuts the associated contaminating emissions. The process involves using an adsorber in the reaction bed and which is designed to capture the CO2. "When the CO2 is eliminated from the reaction bed, we are encouraging the displacement of the reaction equilibriums and, as a result, a greater yield and a greater output of hydrogen are obtained," explains Remiro.

In this context, he stresses that improvement in the CO2 capture in the reaction bed was verified when extremely pure hydrogen, close to 100%, was obtained and at a lower operating temperature with respect to the process minus the CO2 capture.


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