Deoxygenation of methyl laurate as a model compound to hydrocarbons on transition metal phosphide catalysts

Chen, Jixiang; Shi, Heng; Li, Li; Li, Kelun

doi:10.1016/j.apcatb.2013.08.026

Cited by 220 publications

(265 citation statements)

References 83 publications

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“…[10,21]. As reported, the hydrogenation ability of the Ni site reduces with the decrease of electron density [22,23] [15] also reported that the Ni in Ni 12 P 5 has a higher electronic density than Ni 2 P.…”

Section: Catalystmentioning

confidence: 68%

“…For Zn0.75Mg0.25Ni-P/Al2O3, the interaction between the Ni2P particles and the support leads to decrease of the binding energy of Ni δ+ (853.1 eV) [10,21]. As reported, the hydrogenation ability of the Ni site reduces with the decrease of electron density [22,23]. For MgNi-P/Al2O3, the binding energy of Ni δ+ in Ni12P5 phase declines further (852.2 eV).…”

Section: Catalystmentioning

confidence: 75%

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High Active Zn/Mg-Modified Ni–P/Al2O3 Catalysts Derived from ZnMgNiAl Layered Double Hydroxides for Hydrodesulfurization of Dibenzothiophene

et al. 2017

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A series of ZnMgNiAl layered double hydroxides (LDHs) containing 20 wt.% Ni and different Zn/Mg molar ratios were prepared by a coprecipitation method, and then were introduced with H 2 PO 4 − via a microwave-hydrothermal method. With the resulting mixtures as the precursors, Zn/Mg-modified ZnMgNi-P/Al 2 O 3 catalysts were prepared. The Zn/Mg molar ratio affected the formation of Ni 2 P and Ni 12 P 5 in nickel phosphides. The ZnMgNi-P/Al 2 O 3 catalyst with a Zn/Mg molar ratio of 3:1 exhibits the best dibenzothiophene hydrodesulfurization (HDS) activity. Compared with the Ni-P/Al 2 O 3 catalyst prepared from the impregnation method, the ZnMgNi-P/Al 2 O 3 catalyst shows a higher HDS activity (81.6% vs. 54.3%) and promotes the direct desulfurization of dibenzothiophene.

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Section: Catalystmentioning

confidence: 68%

Section: Catalystmentioning

confidence: 75%

High Active Zn/Mg-Modified Ni–P/Al2O3 Catalysts Derived from ZnMgNiAl Layered Double Hydroxides for Hydrodesulfurization of Dibenzothiophene

et al. 2017

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“…for Ni 2 P/LT(P) the main peak was detected at 696 °C similarly to data shown in ref. 13. However, we take for more reliable step-by-step HT-XRD technique to follow up formation of active metallic phases leaving enough time to take place complete reduction at the investigated temperatures.…”

Section: Results and Discussion-mentioning

confidence: 99%

Hydroconversion of acetic acid over indium- and phosphorus-modified nickel/laponite catalysts

Onyestyák

Harnos

Badari

et al. 2015

Reac Kinet Mech Cat

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Modified catalysts were prepared from laponite (LT)-supported Ni catalyst. The catalysts were characterized by specific surface area (SSA), pore size distribution (PSD), in situ X-ray diffractometry (XRD) and activity in the hydroconversion of acetic acid (AA) at 21 bar total pressure, WHSV AA =0.5-3.0 h -1 , and 260-380 °C reaction temperature. The modification generated LT-supported Ni 2 In or Ni 2 P active phases. The Ni 2 P catalyst showed hydrodecarbonylation (HDC) activity. The Ni 2 In/LT catalyst has a balanced hydrogenating activity, providing ethanol (EL) and H 2 O as main products. The EL formation was substantiated to proceed through acetaldehyde (AAD)/vinyl alcohol intermediates.

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“…For Ni/HZSM-5, two evident desorption peaks centered at 230 ºC and 370 ºC approximately, and these correspond to the weak and medium acidic sites respectively. For Ni/Al2O3, there was a broad desorption peaks in the range of 130-450 ºC, due to the presence of many successive weak and medium acidic sites on Al2O3 [3] . There was no obvious peak that can be observed for Ni/C, indicating its non-acidic property.…”

Section: Figure 1 H2-tpr Profiles Of Various Supported Ni Catalystsmentioning

confidence: 99%

Deoxygenation of methyl laurate over Ni based catalysts: Influence of supports

Xia

Chen

et al. 2017

AIP Conference Proceedings

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Abstract. The use of a series of nickel based catalysts supported over HZSM-5, Al2O3, C and ZrO2 in the deoxygenation of methyl laurate shows that the deoxygenation activity and deoxygenation pathway of nickel based catalysts can be affected by properties of catalysts. In the absence of H2, -elimination of methyl laurate is the dominant reaction and a small amount of laurate acid is converted into undecane by direct decarboxylation. At the same time, the highly acidic support HZSM-5 gave higher conversion and C11 alkane selectivity. In the presence of H2, Ni/HZSM-5 catalyst showed a significantly high deoxygenation activity, producing 71% alkanes by methyl laurate conversion at 280 ºC and 4MPa H2. While as on mildly acidic (Al2O3) and neutral (C) supports, a restricted hydrodeoxygenation activity was achieved but more oxygenate products were yielded. According to the analysis of intermediate product,

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Deoxygenation of methyl laurate as a model compound to hydrocarbons on transition metal phosphide catalysts

Cited by 220 publications

References 83 publications

High Active Zn/Mg-Modified Ni–P/Al2O3 Catalysts Derived from ZnMgNiAl Layered Double Hydroxides for Hydrodesulfurization of Dibenzothiophene

High Active Zn/Mg-Modified Ni–P/Al2O3 Catalysts Derived from ZnMgNiAl Layered Double Hydroxides for Hydrodesulfurization of Dibenzothiophene

Hydroconversion of acetic acid over indium- and phosphorus-modified nickel/laponite catalysts

Deoxygenation of methyl laurate over Ni based catalysts: Influence of supports

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