Effect of La2O3 replacement on γ-Al2O3 supported nickel catalysts for acetic acid steam reforming. (10th August 2017)

• Record Type: Journal Article
• Authors: Wang, Meijuan; Zhang, Fan; Wang, Shurong
• Is Part Of: International journal of hydrogen energy. Volume 42:Number 32(2017)
• Page Start: 20540
• Page End: 20548
• Publication Date: 2017-08-10
• Subjects: Hydrogen -- Reforming -- La2O3 -- γ-Al2O3 -- Bio-oil -- Acetic acid; Hydrogen as fuel -- Periodicals; Hydrogène (Combustible) -- Périodiques; Hydrogen as fuel; Periodicals; 665.81
• DOI: 10.1016/j.ijhydene.2017.06.147
• Languages: English
• ISSNs: 0360-3199

Abstract

Abstract: The effect of replacement of γ-Al2 O3 by La2 O3 was studied on Ni catalysts for hydrogen production via acetic acid steam reforming. The La/(La + Al) weight ratio ranged from 0 to 1 in the catalyst support prepared by co-precipitation method. Over the Ni/La-3Al catalyst (the La/(La + Al) weight ratio at 0.25), the carbon conversion and hydrogen yield reached 100% and 72.72%, respectively, which was obviously higher than other catalysts at 700 °C, S/C = 1 and LHSV = 10 h −1 . The effect of S/C, LHSV and stability test were studied in detail over Ni/La-3Al catalyst, whose high activity maintained for more than 30 h. Highlights: The addition of La2 O3 to Al2 O3 remarkably enhanced the catalyst performance. Ni/La-3Al performed best among Ni/xLa-yAl catalysts with the highest H2 yield. The high performance was maintained for 30 h with deactivation less than 10%.