The difference in hydrogenation performance between Ni-in-Al2O3 and Ni-on-Al2O3 for hydrotreating of crude 2-ethylhexanol

Yang, Renchun; Li, Yong; Wu, Junsheng; Zhang, Xin; Zhang, Zhihua

doi:10.1007/s11814-009-0317-1

Cited by 7 publications

(3 citation statements)

References 27 publications

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“…Generally, hydrotreating is one of the main catalytic processes used for upgrading of LCO in petroleum refineries [7,8]. It involves: (1) aromatic saturation (ASAT); (2) mild hydrocracking; and (3) deep hydrogenation followed by selective ring opening (SRO) of naphthenic structures.…”

Section: Introductionmentioning

confidence: 99%

Upgrading of light cycle oil by partial hydrogenation and selective ring opening over an iridium bifunctional catalyst

et al. 2011

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An iridium catalyst supported on USY zeolite has been evaluated for hydrotreating of light cycle oil (LCO) to reduce its aromaticity and improve its cetane index. The products were analyzed by GC and 13 C NMR spectrometry to determine quantitatively the aromatic carbon content and the increase in cetane index. Addition of an appropriate amount of potassium was found to be an effective way of optimizing the acid properties of the catalyst; reducing the number of strongly acid sites reduced its cracking activity. The results confirm that 0.9% (w/w) Ir/USY zeolite catalyst doped with 0.75% (w/w) K was highly suitable for partial hydrogenation and ring opening of LCO to improve cetane quality, thus increasing the extent of its blending ratio with the diesel pool.

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Section: Introductionmentioning

confidence: 99%

Upgrading of light cycle oil by partial hydrogenation and selective ring opening over an iridium bifunctional catalyst

et al. 2011

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“…In particular, catalysts, which are the high dispersion of active sites and the optimization of acid site loading on the surface of the support, should be properly characterized according to the reaction environment [17]. Thus, nickel [18] and molybdate [19] supported on ultra-stable Y zeolite (Ni-Mo/USY zeolite) catalysts have been widely used in HDT reactions [20][21][22][23]. Dien Li et al studied NiMo catalysts that were synthesized using various zeolite types such as NaY, USY, H-mordenite, and ZSM-5.…”

Section: Introductionmentioning

confidence: 99%

Efficient Synthesis of Nickel-Molybdenum/USY-Zeolite Catalyst for Eliminating Impurities (N, S, and Cl) in the Waste Plastic Pyrolysis Oil: Dispersion Effect of Active Sites by Surfactant-Assisted Melt-Infiltration

Cho,

Kim,

Yoon

et al. 2023

Catalysts

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The upgrading of waste plastic pyrolysis oil (WPPO) through hydrotreating (HDT) is crucial for transforming plastic waste into chemical feedstock. The catalytic role of HDT is of paramount importance for this conversion procedure. In this study, bimetallic catalysts based on Ni and Mo were prepared using the surfactant-assisted melt-infiltration (SAMI) method, completely omitting the use of liquid solutions. Thorough analysis via X-ray diffraction, transmission electron microscopy, and hydrogen temperature-programmed reduction confirmed that the addition of Span60 surfactant effectively prevented the aggregation of Ni and Mo components, reduced the size of metal particles, and improved the dispersion of active sites on the zeolite supports. Consequently, NiMo-based catalysts incorporating Span60, synthesized using the SAMI method, exhibited a superior catalytic performance in the removal of nitrogen, sulfur, and chloride impurities from WPPO during HDT compared to those without surfactant. Specifically, the catalyst prepared with Span60 exhibited 15% higher nitrogen conversion compared to the catalyst prepared without Span60.

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“…To test the PAM hydrogels, the researchers have conducted lots of research on them to increase their adsorption capacity, hybrids, and composites containing PAM by adding several functional components such as silica, [8] clay, poly (2-acrylamido-2-methylpropanesulfonic acid), [9] methylcellulose, [10] and chitosan. [11,12] In recent years, there have been significant advances in heterogeneous Fenton systems, [13,14] and till recently, a number of heterogeneous Fenton-like catalysts have been developed, applied, and reported, like iron oxides, [15][16][17][18][19] ironimmobilized zeolites, [20] clays, [21] and carbon compounds, [22,23] unlike the traditional Fenton catalyst, the heterogeneous catalysts have the ability to be applied in a wide range of pH for the oxidative degradation of organic pollutants.…”

mentioning

confidence: 99%

Application of a novel bimetallic hydrogel based on iron and cobalt for the synergistic catalytic degradation of Congo Red dye

Aftab

Hussain

2019

J Chinese Chemical Soc

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Herein, we developed a bimetallic (Fe and Co) polyacrylamide (PAM) hydrogel (FeCo@PAM) to investigate the synergistic catalytic degradation of Congo Red (CR) dye. The structure and the morphology of the FeCo@PAM hydrogel were analyzed using the Fourier transform infrared (FTIR) spectroscopy, scanning electron microscopy (SEM), and energy‐dispersive X‐ray spectrometry (EDX). To study the chemical composition of our catalyst, the FTIR technique was applied. The SEM and EDX confirmed the presence of bimetallic ions in the PAM hydrogel. All critical parameters of the catalyst, that is, mass, dye concentration, H2O2 dose, temperature, and pH were investigated and optimized. The synergistic oxidative catalytic degradation of the CR dye using FeCo@PAM under the optimal conditions was calculated to be 96.45% (60 min), which was 11.26% (75 min) higher than that of Fe@PAM and 11.69% (75 min) higher than that of Co@PAM. For FeCo@PAM, not only the degradation percentage increased also the reaction time decrease was phenomenal. These experiments verified the synergistic oxidative degradation of the CR dye exhibited by the FeCo@PAM catalyst. The Kinetic isotherm studies were also studied to determine the CR degradation progression. Our FeCo@PAM catalyst also demonstrated to be highly recyclable, as high CR dye degradation was accomplished up to three consecutive cycles.

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The difference in hydrogenation performance between Ni-in-Al2O3 and Ni-on-Al2O3 for hydrotreating of crude 2-ethylhexanol

Cited by 7 publications

References 27 publications

Upgrading of light cycle oil by partial hydrogenation and selective ring opening over an iridium bifunctional catalyst

Upgrading of light cycle oil by partial hydrogenation and selective ring opening over an iridium bifunctional catalyst

Efficient Synthesis of Nickel-Molybdenum/USY-Zeolite Catalyst for Eliminating Impurities (N, S, and Cl) in the Waste Plastic Pyrolysis Oil: Dispersion Effect of Active Sites by Surfactant-Assisted Melt-Infiltration

Application of a novel bimetallic hydrogel based on iron and cobalt for the synergistic catalytic degradation of Congo Red dye

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