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Sorption‐Enhanced Steam Reforming of Glycerol over Ni–hydrotalcite: Effect of Promotion with Pt
Author(s) -
Dewoolkar Karan D.,
Vaidya Prakash D.
Publication year - 2016
Publication title -
chemcatchem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.497
H-Index - 106
eISSN - 1867-3899
pISSN - 1867-3880
DOI - 10.1002/cctc.201600793
Subject(s) - hydrotalcite , steam reforming , sorbent , sorption , hydrogen production , materials science , chemical engineering , catalysis , glycerol , nuclear chemistry , adsorption , chemistry , organic chemistry , engineering
Sorption‐enhanced steam reforming of glycerol (SESRG) is a promising method for the sustainable production of hydrogen (H 2 ). In this work, composites of Ni and cationic‐modified hydrotalcite (HTlc) were promoted with Pt, thus resulting in two novel hybrid materials Pt‐NiMgHTlc and Pt‐NiCuHTlc. Activity trials for SESRG were performed in a fixed‐bed reactor in the range 673–873 K and it was found that the promotion with Pt improved H 2 purity and multi‐cycle durability. The best results were achieved when Pt‐NiCuHTlc was employed at T =823 K: a H 2 concentration of 98.7 mol % and adsorption capacity of 1.34 mol CO 2 /kg sorbent was achieved. When the multi‐cycle performance was tested for 20 cycles, it was found that NiMgHTlc, NiCuHTlc, Pt‐NiMgHTlc, and Pt‐NiCuHTlc were stable for 5, 8, 13, and 18 cycles. Finally, a likely reaction pathway for SESRG over the investigated multifunctional materials was proposed.