Production of hydrogen via steam reforming of acetic acid over Ni and Co supported on La 2 O 3 catalyst

Nabgan, Walid; Abdullah, Tuan Amran Tuan; Mat, Ramli; Nabgan, Bahador; Jalil, Aishah Abdul; Firmansyah, Lutfi; Triwahyono, Sugeng

doi:10.1016/j.ijhydene.2016.04.176

Cited by 72 publications

(31 citation statements)

References 60 publications

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“…The XRD pattern of the Ni/ZrO 2 and Co/ZrO 2 catalysts contains Bragg peaks at around 2θ = 44.52˝, which corresponds to metallic Ni. This can be attributed to the presence of the cubic [JCPDS 45-1027] structure of Ni and is in agreement with previous research [6,[35][36][37]. The diffraction peaks at 2θ = 44.37c orrespond to metallic Co [JCPDS 01-1254], similar to reports from previous works [38,39].…”

Section: Characterisation Of the Fresh Catalystssupporting

confidence: 91%

Evaluation of Reaction Parameters of the Phenol Steam Reforming over Ni/Co on ZrO2 Using the Full Factorial Experimental Design

et al. 2016

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Full factorial experimental design with 32 runs was used to investigate the significant and interaction variable of the reaction parameters on phenol steam reforming toward hydrogen production. Effects of selected factors on the phenol conversion (Y 1 ) and hydrogen yield (Y 2 ) were evaluated. These factors were as follows: (A) temperature (500 and 800˝C); (B) feed flow rate (0.16-0.46 mL/min); (C) catalyst weight (0.1-0.3 g); (D) Ni-Co ratio (0-1); and (E) phenol concentration in the feed (2-10 wt %). Ni and Co over ZrO 2 support for catalytic performance of phenol steam reforming (SRP) was prepared by the impregnation method. The result indicated that all the main independent variables had significant influence on the dependent variable of Y 1 and Y 2 with a range of 2.7%-96.8% and 21.4%-72.4%, respectively. Additionally, some interaction variables like AE, BE, CE, and DE have also influenced the Y 1 and Y 2 responses. This design showed that the best initial conditions that produced maximum Y 1 and Y 2 responses were at 800˝C, 0.16 mL/min feed flow rate, 0.3 g of catalyst, 0 ratio of Ni-Co (Co/ZrO 2 ), and 10 wt % of phenol in the feed, where the phenol conversion was predicted to be 94.98% and the hydrogen yield was predicted to be 67.4%. Within the limits the variables were examined, a regression model which well-fitted the experimental data was proposed. The regression model were reduced to simplify and to get the significant regression coefficient with p-value less than 0.05.Appl. Sci. 2016, 6, 223 2 of 21 production from phenol is steam reforming of phenol (SRP), which can produce more H 2 yield based on stoichiometry in Equations (1) and (2):Ni-based catalysts with a high activity for the phenol steam reforming process have been investigated extensively in recent years [4][5][6] due to the ability to cleave C-C, O-H, and C-H bonds [7]. In addition, cobalt can assist with C-C bond cleaving at temperatures as low as 400˝C; this shows high production of H 2 and CO 2 [8] due to the highly favourable water gas shift reaction [9][10][11]. However, there are a few items that can be identified as the catalyst in the reforming of phenol: the conversion of phenol, and the yield of H 2 , CO or CO 2 . Many issues affect this performance, such as the steam to phenol (S/P) ratio, catalyst composition, flow rate of carrier gas, operating temperature, reactant feed rate and space time, preparation method, catalyst particle size, amount of catalyst, and ratio of active metals in multiple active metal catalyst use. Exothermic reactions, high phenol conversion, and the rate of gas production all occur at a high temperature. The same results were found in previous works regarding the temperature effect on phenol conversion. Some researchers have found that the conversion of phenol increased with the increasing of temperature [6,[12][13][14]. Based on the works of Rioche et al. [13] and Shurong et al. [15], the increase in catalyst activity is based on the increasing temperature. They have found that a complete phenol conve...

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Section: Characterisation Of the Fresh Catalystssupporting

confidence: 91%

Evaluation of Reaction Parameters of the Phenol Steam Reforming over Ni/Co on ZrO2 Using the Full Factorial Experimental Design

et al. 2016

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“…Another factor that could lead to the decrease in reduction temperature of NiO is the presence of La 2 O 3 . 49 In addition, shoulder peaks were detected around 780 K on curve 1 and curve 2, while curve 3 has two shoulder peaks at 673 K and 780 K, respectively. The peak at 780 K is attributed to the reduction of NiO in close contact with the support.…”

Section: Catalyst Characterizationmentioning

confidence: 92%

Synthesis, characterization and activity performance of nickel-loaded spent FCC catalyst for pine gum hydrogenation

et al. 2019

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“…The found carbon deposition rates of NF/PG and NF/0.4PG0.6 were better than that reported by our previous research , in which 25.9 mg/(gcat.·h) coke rate was formed on IM-Ni/ATC at 650 °C. Moreover, the carbon deposition amount (3.8%) of NF/0.4PG0.6 catalyst was lower than the coke amount (9.6%) of spent Ni-Co/La2O3 catalyst was researched by Nabgan et al (2016) during the process of SRA. As far as anyone knows, TG-DSC analysis is a complementary technique for estimating the structural order of carbon deposits, because the more ordered carbon structure needs the higher temperature for gasification Nogueria et al 2014).…”

Section: Characterizations Of Spent Catalystsmentioning

confidence: 99%

Hydrogen Production from Steam Reforming of Acetic Acid over Ni-Fe/Palygorskite Modified with Cerium

Wang¹,

Chen²,

Yang³

et al. 2017

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The steam reforming of acetic acid (SRA) was carried out in a fixed-bed tubular reactor with Ni-Fe/ceria-palygorskite (CPG) catalysts. The asprepared catalysts were analyzed by N2 adsorption-desorption, scanning electron microscopy coupled with energy dispersive spectroscopy (SEM-EDS), H2 temperature programmed reduction (H2-TPR), and X-ray diffraction (XRD). The results of H2-TPR and XRD showed that the addition of CeO2 increased the hydrogen consumption of catalysts and the interaction force between active component (Ni-Fe alloy) and carrier. Moreover, the Ni-Fe alloys were successfully synthesized in the Ni-Fe/CPG catalysts and their crystallite sizes were decreased by adding CeO2. In addition, these catalysts were employed to SRA at 600 °C, GHSV = 14427 h -1 and different molar ratio of S/C. The experimental results revealed that the Ni-Fe/C0.4PG0.6 catalyst can achieve the highest yield of H2 (87%) and HOAc conversion (95%), as well as the highest stability during the process of steam SRA. Additionally, the spent catalysts were characterized by XRD, SEM, and thermogravimetric analysis (TGA). The results showed that the addition of CeO2 enhanced the stability and activity of Ni-Fe/palygorskite catalyst and reduced the coke deposition rate on the catalyst surface.

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Production of hydrogen via steam reforming of acetic acid over Ni and Co supported on La 2 O 3 catalyst

Cited by 72 publications

References 60 publications

Evaluation of Reaction Parameters of the Phenol Steam Reforming over Ni/Co on ZrO2 Using the Full Factorial Experimental Design

Evaluation of Reaction Parameters of the Phenol Steam Reforming over Ni/Co on ZrO2 Using the Full Factorial Experimental Design

Synthesis, characterization and activity performance of nickel-loaded spent FCC catalyst for pine gum hydrogenation

Hydrogen Production from Steam Reforming of Acetic Acid over Ni-Fe/Palygorskite Modified with Cerium

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