Influences of the Support Property and Pd Loading on Activity of Mesoporous Silica-Supported Pd Catalysts in Partial Hydrogenation of Palm Biodiesel Fuel

Chen, Shih‐Yuan; Attanatho, Lalita; Mochizuki, Takehisa; Zheng, Qingxin; Toba, Makoto; Yoshimura, Y.; Somwongsa, Phunthinee; Lao-ubol, Supranee

doi:10.1166/apm.2016.1116

Cited by 11 publications

(3 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…However, the product selectivity for mono-FAME, cis -mono-FAME, and sat-FAME as a function of reaction time over Cl-containing and Cl-free Pd catalysts remained nearly unchanged, particularly those related to high poly-FAME conversions. This result indicated that the hydrogenation of poly-FAME components over the Cl-containing Pd particles was slightly facilitated, presumably due to the Pd surface being slightly electron-deficient owing to the high electronegativity of the Cl species [ 56 , 59 , 60 , 61 ]. However, the activity and selectivity of Pd/AC catalysts in the partial hydrogenation of a commercial palm-BDF were predominately influenced by the sizes of Pd particles.…”

Section: Resultsmentioning

confidence: 99%

“…The results are further compared to those of the H-FAME obtained by carbon-supported Pd catalysts in the literature [ 34 ]. The oxidation stability of the antioxidant-stabilized palm-BDF as a commercial product is 13 h, which is higher than that of the antioxidant-free palm-BDF (<5 h) [ 60 , 61 ]. The oxidation stability of palm-BDF is higher than those specified in the ASTM D6751 international fuel standard (>3 h), EN 14,214 international fuel standard (>8 h), and Thai standard (>10 h) for the formulation of B7 fuels [ 62 , 63 ].…”

Section: Resultsmentioning

confidence: 99%

See 1 more Smart Citation

Effect of Pd Precursor Salts on the Chemical State, Particle Size, and Performance of Activated Carbon-Supported Pd Catalysts for the Selective Hydrogenation of Palm Biodiesel

Udomsap

Eiad‐ua

Chen

et al. 2021

IJMS

Self Cite

View full text Add to dashboard Cite

To improve the oxidative stability of biodiesel fuel (BDF), the polyunsaturated fatty acid methyl esters (poly-FAME) presented in commercial palm oil-derived biodiesel fuel (palm-BDF) were selectively hydrogenated to monounsaturated fatty acid methyl esters (mono-FAME) under a mild condition (80 °C, 0.5 MPa) using activated carbon (AC)-supported Pd catalysts with a Pd loading of 1 wt.%. The partially hydrotreated palm-BDF (denoted as H-FAME) which has low poly-FAME components is a new type of BDF with enhanced quality for use in high blends. In this study, we reported that the chemical states and particle sizes of Pd in the prepared Pd/AC catalysts were significantly influenced by the Pd precursors, Pd(NO3)2 and Pd(NH3)4Cl2, and thus varied their hydrogenation activity and product selectivity. The 1%Pd/AC (nit) catalyst, prepared using Pd(NO3)2, presented high performance for selective hydrogenation of poly-FAME into mono-FAME with high oxidation stability, owning to its large Pd particles (8.4 nm). Conversely, the 1%Pd/AC (amc) catalyst, prepared using Pd(NH3)4Cl2, contained small Pd particles (2.7 nm) with a little Cl residues, which could be completely removed by washing with an aqueous solution of 0.1 M NH4OH. The small Pd particles gave increased selectivity toward unwanted-FAME components, particularly the saturated fatty acid methyl esters during the hydrogenation of poly-FAME. This selectivity is unprofitable for improving the biodiesel quality.

show abstract

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Effect of Pd Precursor Salts on the Chemical State, Particle Size, and Performance of Activated Carbon-Supported Pd Catalysts for the Selective Hydrogenation of Palm Biodiesel

Udomsap

Eiad‐ua

Chen

et al. 2021

IJMS

Self Cite

View full text Add to dashboard Cite

show abstract

“…[9] Moreover, the support should be capable of reducing the metal agglomeration by controlling its size without passivation of the active surface. [10] Therefore, various supports such as zeolites, [11] carbon nanotube, [12] activated carbon, [13] silica [14] etc. have been reported.…”

Section: Introductionmentioning

confidence: 99%

A Sustainable Palladium‐Intercalated Montmorillonite Clay Catalytic System for Imine Hydrogenation under Mild Conditions

2020

View full text Add to dashboard Cite

A series of palladium nanoparticles (Pd NPs) intercalated montmorillonite clay catalysts is reported for hydrogenation of 3-diphenyl prop-2-en-1-imine under mild reaction conditions. Pd/clay catalyst was prepared by a simple wet-impregnation method, and the physicochemical properties were characterized extensively by various techniques including N 2 adsorption, XRD, TEM, XPS and TPR etc., which showed the intercalation of active Pd NPs between the clay layers. The effect of reaction conditions such as catalyst loading, reaction time, temperature and H 2 pressure is explored, and thereby a plausible mechanism is proposed. The optimum amount of 6 wt % Pd/clay catalyst showed significant catalytic activity to yield 3-phenyl propyl aniline with 100 % conversion and selectivity under 5 bar pressure and a shorter reaction period of 3.5 h at 100°C. The developed catalytic system unveiled excellent reusability over five cycles and hence paved the way for industrial applications.

show abstract

Superficial Pd nanoparticles supported on carbonaceous SBA-15 as efficient hydrotreating catalyst for upgrading biodiesel fuel

Chen

Chang

Rungsi

et al. 2020

Applied Catalysis A: General

View full text Add to dashboard Cite

Influences of the Support Property and Pd Loading on Activity of Mesoporous Silica-Supported Pd Catalysts in Partial Hydrogenation of Palm Biodiesel Fuel

Cited by 11 publications

References 0 publications

Effect of Pd Precursor Salts on the Chemical State, Particle Size, and Performance of Activated Carbon-Supported Pd Catalysts for the Selective Hydrogenation of Palm Biodiesel

Effect of Pd Precursor Salts on the Chemical State, Particle Size, and Performance of Activated Carbon-Supported Pd Catalysts for the Selective Hydrogenation of Palm Biodiesel

A Sustainable Palladium‐Intercalated Montmorillonite Clay Catalytic System for Imine Hydrogenation under Mild Conditions

Superficial Pd nanoparticles supported on carbonaceous SBA-15 as efficient hydrotreating catalyst for upgrading biodiesel fuel

Contact Info

Product

Resources

About