Spray pyrolysis synthesis of γ-Al2O3 supported metal and metal phosphide catalysts and their activity in the hydrodeoxygenation of a bio-oil model compound. (1st November 2016)

• Record Type: Journal Article
• Authors: Ly, Hoang Vu; Im, Kyungmin; Go, Youngchae; Galiwango, Emmanuel; Kim, Seung-Soo; Kim, Jinsoo; Choi, Jae Hyung; Woo, Hee Chul
• Is Part Of: Energy conversion and management. Volume 127(2016)
• Page Start: 545
• Page End: 553
• Publication Date: 2016-11-01
• Subjects: Hydrodeoxygenation -- 2-Furyl methyl ketone -- Spray pyrolysis -- Incipient wetness impregnation; Direct energy conversion -- Periodicals; Energy storage -- Periodicals; Energy transfer -- Periodicals; Énergie -- Conversion directe -- Périodiques; Direct energy conversion; Periodicals; 621.3105
• DOI: 10.1016/j.enconman.2016.09.020
• Languages: English
• ISSNs: 0196-8904

Abstract

Highlights: Spherical γ-Al2 O3 supported metal and metal phosphide catalysts were synthesized by spray pyrolysis method. Hydrodeoxygenation (HDO) of 2-furyl methyl ketone (FMK) was conducted using metal/metal phosphide catalysts. FMK was converted into 2-allyl furan and methyl cyclohexane. The highest FMK conversion of 83% was achieved over 10 wt% Ni/γ-Al2 O3 catalysts at reaction temperature of 400 °C. Abstract: In this study, spherical γ-Al2 O3 supported metal and metal phosphide (Ni, Co, Ni2 P and CoP) catalysts were successfully prepared by combining sol-gel and spray pyrolysis methods. First boehmite sol was prepared based on the Yoldas process and then the corresponding metal salts were added to the sol at the desired concentration, followed by spray pyrolysis of the mixed solution. As the well-mixed solution was transformed to spherical γ-Al2 O3 supported metal and metal phosphide catalysts during spray pyrolysis process, the metal species were uniformly distributed in the mesoporous γ-Al2 O3 supports. The product catalysts were investigated under different conditions for hydrodeoxygenation of bio-oil model compound, 2-furyl methyl ketone (FMK), which is the main component of the bio-oil product from pyrolysis of Saccharina japonica . Among the investigated catalysts, the 10 wt% Ni/γ-Al2 O3 catalyst after calcination at 800 °C showed the highest FMK conversion of 83.02% at the reaction temperature of 400 °C. The gas and liquid products were analyzed by gas chromatography (GC) with TCD/FID detectors and GC–MS, respectively, to determine the product compositions.