Experimental study of the application of a NiO/NiAl2O4 catalyst and a CaO-based synthetic sorbent on the Sorption Enhanced Reforming process. (5th January 2015)

• Record Type: Journal Article
• Authors: García-Lario, Ana L.; Aznar, María; Martinez, Isabel; Grasa, Gemma S.; Murillo, Ramón
• Is Part Of: International journal of hydrogen energy. Volume 40:Number 1(2015)
• Page Start: 219
• Page End: 232
• Publication Date: 2015-01-05
• Subjects: Hydrogen as fuel -- Periodicals; Hydrogène (Combustible) -- Périodiques; Hydrogen as fuel; Periodicals; 665.81
• DOI: 10.1016/j.ijhydene.2014.10.033
• Languages: English
• ISSNs: 0360-3199

Abstract

<abstract xml:lang="en" abstract-type="author" id="abs0010"> <title id="sectitle0010">Abstract</title> <sec> <p id="abspara0010">A CaO-based synthetic sorbent and a NiO/NiAl₂O₄ catalyst are synthesized and tested under Sorption Enhanced Reforming (SER) conditions in a fixed bed reactor. The effect of temperature, steam-to-methane ratio (<italic>S</italic>/<italic>C</italic>) and sorbent-to-catalyst proportion (<italic>Z</italic>) are studied. A SER based plant simulation model is implemented to evaluate if the operating conditions chosen allow for a self-sustained plant from a thermal energy consumption standpoint.</p> <p id="abspara0015">The most appropriate temperature for SER test is 650 °C. At 600 °C the catalyst seems to be not sufficiently active, while at 700 °C, a longer breakthrough period results. SER equilibrium is reached even at the lowest <italic>S</italic>/<italic>C</italic> ratio of 1.6, obtaining H₂ purity of 82 vol.% (dry basis). For the SER based plant simulation developed, the low <italic>S</italic>/<italic>C</italic> ratio of 1.6 allows a self-sustained plant where the energy required in the calciner for CaCO₃ decomposition is supplied by burning the off-gas from the H₂ purification unit.</p> </sec> </abstract>