The liquid phase hydrogenation of benzene and substituted alkylbenzenes over a nickel catalyst in a semi-batch reactor

Toppinen, Sami; Rantakylä, Tiina-Kaisa; Salml, Tapio; Aittamaa, Juhani

doi:10.1016/s0920-5861(97)00035-7

Cited by 20 publications

(5 citation statements)

References 3 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The influence of solvent on the obtained kinetics is well documented in the literature [9][10][11]. An extensive study of liquid-phase hydrogenation kinetics in the absence of a solvent was done by Toppinen et al [12][13][14][15] who investigated the hydrogenation kinetics of benzene and substituted alkylbenzenes. Battsengel [16] determined the hydrogenation kinetics of 1-octene, which is the test system for the validation of the experimental setup proposed in this article.…”

Section: Introductionmentioning

confidence: 99%

Measurement of Micro Kinetics of Hydrogenation in Liquid Phase Using Raman Spectroscopy

2016

View full text Add to dashboard Cite

Hydrogenation of liquid organic hydrogen carriers is usually carried out in liquid phase. To measure the kinetics of this hydrogenation, an experimental setup using in situ Raman spectroscopy for analysis of the reaction mixture is proposed. With this setup it is possible to perform hydrogenation reactions at temperatures of up to 573 K and pressures up to 25 MPa. For validation of the experimental setup the hydrogenation of 1-octene was measured in liquid phase. The reaction progress can be monitored in detail by Raman spectroscopy. To determine kinetic parameters from the experimental data, two modeling approaches were applied: a classic kinetic model and a thermodynamic kinetic model. The results were compared to literature data.

show abstract

Section: Introductionmentioning

confidence: 99%

Measurement of Micro Kinetics of Hydrogenation in Liquid Phase Using Raman Spectroscopy

2016

View full text Add to dashboard Cite

show abstract

“…Hydrogenation of aromatics has been studied for several decades. This reaction is often performed in the gas phase 4) 8) or the liquid phase 9) . Recently, new aromatic hydrogenation processes have been studied for application to organic chemical hydride methods such as electrochemical hydrogenation 10),11) .…”

Section: Introductionmentioning

confidence: 99%

Selective Adsorption of Toluene on Perovskite-type Oxide

Suzuki

Shiono

Manabe

et al. 2018

J. Jpn. Petrol. Inst.

View full text Add to dashboard Cite

Organic chemical hydrides are one of the most promising methods for hydrogen storage, but aromatic compound remains unreacted after the hydrogenation process due to equilibrium limitations. We attempted to develop a solid-state adsorbent which could selectively adsorb toluene from methylcyclohexane (MCH) _ toluene mixture. Several La-based oxides were tested and La0.8Ba0.2CoO3 δ (LBCO) was found to exhibit high adsorption and selectivity for toluene. Analyses of the electronic state and adsorption state of toluene found part of the Co ions in the LBCO lattice were Co 4 . Co 4 in the lattice and surface lattice oxygen are important for the selective adsorption of toluene.

show abstract

“…Among the base metals employed in hydrogenation reactions, Ni is the dominant on an industrial scale and also in the research literature [2][3][4][5][6][7][8]. Co-based catalysts have been employed in numerous studies of hydrogenation reactions [9,10], particularly in Fischer-Tropsch reactions, given the intrinsic ability of Co to hydrogenate dissociated carbon species and promote chain growth [11].…”

mentioning

confidence: 99%

Effects of the activation method on the performance of base metal catalysts prepared by wet impregnation for toluene hydrogenation in liquid phase

Suppino

Landers

Cobo

2014

Reac Kinet Mech Cat

View full text Add to dashboard Cite

The present work aims to study the effects of the activation method on the performance of base metal catalysts for toluene hydrogenation in liquid phase. For this, catalysts of Fe, Co and Ni supported on c-Al 2 O 3 were prepared by wet impregnation from chlorinated precursors and reduced by formaldehyde. The prepared catalysts were activated ex situ at 773 K or in situ at 523 K both under H 2 and characterized by N 2 physisorption, SEM ? EDX, TEM, XPS and TPR techniques. Catalytic tests were conducted in a slurry Parr reactor at 373 K under H 2 pressure of 5 MPa. The results indicate the formation of metal hydroxides during the catalysts preparation, which are not reduced by the formaldehyde. The ex situ activation seems able to reduce both hydroxides of Fe and Ni, but there is no evidence of reduction in the case of Co hydroxide. Co and Ni catalysts present higher activities when not activated, whereas the in situ activation increases the activity of the Fe catalyst.

show abstract

The liquid phase hydrogenation of benzene and substituted alkylbenzenes over a nickel catalyst in a semi-batch reactor

Cited by 20 publications

References 3 publications

Measurement of Micro Kinetics of Hydrogenation in Liquid Phase Using Raman Spectroscopy

Measurement of Micro Kinetics of Hydrogenation in Liquid Phase Using Raman Spectroscopy

Selective Adsorption of Toluene on Perovskite-type Oxide

Effects of the activation method on the performance of base metal catalysts prepared by wet impregnation for toluene hydrogenation in liquid phase

Contact Info

Product

Resources

About