Solubility of hydrogen in methanol containing reaction species for hydrogenation of o-nitrophenol

Choudhary, Vasant R.; Sane, M. G.; Vadgaonkar, Hemant G.

doi:10.1021/je00045a011

Cited by 22 publications

(15 citation statements)

References 4 publications

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“…The Henry's law constants vary about 10% for pressures up to 1500 kPa. The lines in Figures 1 and 2 The open circle symbols in Figure 1 show the data of Choudhary et al (1986) at (20 to 55)°C at pressures of (439 to 2145) kPa. They are in agreement with authors' experimental data within (8%.…”

Section: Resultsmentioning

confidence: 99%

Solubility of Hydrogen in Liquid Methanol and Methyl Formate at 20 °C to 140 °C

1996

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The solubilities of hydrogen gas in liquid phase methanol and methyl formate were measured under pressures up to 1500 kPa and temperatures to 140°C. The mole fraction solubilities were between 7.9 × 10 -4 and 6.3 × 10 -3 for H 2 in methanol and between 7 × 10 -4 and 6.9 × 10 -3 for H 2 in methyl formate. The Henry's law constants were about 620 MPa for H 2 in methanol and 630 MPa for H 2 in methyl formate at a temperature of 20°C. The Henry's law constants show a decrease with increase of temperature. Empirical correlations for solubilities at various temperatures were given on the basis of the experimental data.

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Section: Resultsmentioning

confidence: 99%

Solubility of Hydrogen in Liquid Methanol and Methyl Formate at 20 °C to 140 °C

1996

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“…Therefore, likewise the binary interaction parameters between two gaseous groups, they were input as zero. Nevertheless, the references experimental solubility data of H 2 in MeOH and CO in MeOH collected and presented in Supporting Information Tables S5 and S6 were used to derive the group interaction parameters of CH 3 OH/H 2 and CH 3 OH/CO. The ARDs between experimental data and calculated results for MeOH‐H 2 and MeOH‐CO systems are 9.35% and 8.94%, respectively.…”

Section: Process Simulationmentioning

confidence: 99%

CO₂ capture by methanol, ionic liquid, and their binary mixtures: Experiments, modeling, and process simulation

2018

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The CO 2 solubility data in the ionic liquid (IL) 1-allyl-3-methylimidazolium bis(trifluoromethyl sulfonyl)imide, methanol (MeOH), and their mixture with different combinations at temperatures of 313.2, 333.2, and 353.2 K and pressures up to 6.50 MPa were measured experimentally. New group binary interaction parameters of the predictive universal quasichemical functional-group activity coefficient (UNIFAC)-Lei model, which has been continually advanced by our group, were introduced by correlating the experimental data of this work and the literature. The consistency between experimental data and predicted results proves the reliability of UNIFAC-Lei model for CO 2 -IL-organic solvent systems. The newly obtained parameters were incorporated into the UNIFAC property model of Aspen Plus software to optimize a conceptual process developed for the purification of a CO 2 -containing gas stream. The simulation results indicate that the use of IL either mixed with MeOH or purely considerably lowers the process power consumption and improves the process performance in terms of CO 2 capture rate and solvent loss. ðx 1 Þ n 5Fðm 1 ; m 2 ; m 3 ; m 4 ; m 5 Þ (1) Figure 2. Flow sheet of the CO 2 capture processes developed in this work.Lines, predicted results by the UNIFAC-Lei model; scattered points, experimental data. ( ) pure [AMIM] 1 [Tf 2 N] 2 ; ( ) 80 wt % [AMIM] 1 [Tf 2 N] 2 1 20 wt % MeOH; ( ) 50 wt % [AMIM] 1 [Tf 2 N] 2 1 50 wt % MeOH; ( ) 20 wt % [AMIM] 1 [Tf 2 N] 2 1 80 wt % MeOH; ( ) pure MeOH. [Color figure can be viewed at wileyonlinelibrary.com]

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“…The external surface area of the catalyst particle was calculated from the following equality, 38 for relevant pressures and temperatures (293-328 K and 2.13 -0.48 MPa) and a value of H = 4.2·10 -2 MPa m 3 mol -1 was predicted from these data.…”

Section: Influence Of Mass Transfermentioning

confidence: 99%

reKinetics and Mass Transfer in the Hydrogenation of 2-((1-benzyl-1,2,3,6-tetrahydropyridin-4-yl)methylene)-5,6-dimethoxy- -2,3-dihydroinden-1-one hydrochloride over Pt/C Catalyst

Zrnčević¹

2015

Chem.Biochem.Eng.Q.

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The liquid phase hydrogenation of 2-((1-benzyl-1,2,3,6-tetrahydropyridin-4-yl) methylene)-5,6-dimethoxy-2,3-dihydroinden-1-one hydrochloride (1) over a 5 % Pt/C industrial catalyst was studied experimentally in a batch slurry reactor using methanol as a solvent. The catalyst was characterized by the adsorption techniques for specific surface area and pore volume, and by XRD for crystallinity. To investigate the intrinsic kinetics of the reaction, the effect of temperature, catalyst loading, hydrogen partial pressure and (1) concentration on the initial rate of hydrogenation was studied. The analysis of initial rate data showed that the gas-liquid, liquid-solid, and intraparticle mass-transfer resistances were not significant. The reaction scheme of (1) hydrogenation was proposed for the kinetic modelling. Apparent rate constants for all hydrogenation steps were calculated using a first order kinetic approach resulting in good agreement between the experimentally obtained and predicted concentrations. From the temperature dependence of rate constants, the activation energies of various reaction steps were calculated. The averaged activation energy of these steps was found to be 31.1 kJ mol -1 .

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Solubility of hydrogen in methanol containing reaction species for hydrogenation of o-nitrophenol

Cited by 22 publications

References 4 publications

Solubility of Hydrogen in Liquid Methanol and Methyl Formate at 20 °C to 140 °C

Solubility of Hydrogen in Liquid Methanol and Methyl Formate at 20 °C to 140 °C

CO₂ capture by methanol, ionic liquid, and their binary mixtures: Experiments, modeling, and process simulation

reKinetics and Mass Transfer in the Hydrogenation of 2-((1-benzyl-1,2,3,6-tetrahydropyridin-4-yl)methylene)-5,6-dimethoxy- -2,3-dihydroinden-1-one hydrochloride over Pt/C Catalyst

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Solubility of hydrogen in methanol containing reaction species for hydrogenation of o-nitrophenol

Cited by 22 publications

References 4 publications

Solubility of Hydrogen in Liquid Methanol and Methyl Formate at 20 °C to 140 °C

Solubility of Hydrogen in Liquid Methanol and Methyl Formate at 20 °C to 140 °C

CO2 capture by methanol, ionic liquid, and their binary mixtures: Experiments, modeling, and process simulation

reKinetics and Mass Transfer in the Hydrogenation of 2-((1-benzyl-1,2,3,6-tetrahydropyridin-4-yl)methylene)-5,6-dimethoxy- -2,3-dihydroinden-1-one hydrochloride over Pt/C Catalyst

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CO₂ capture by methanol, ionic liquid, and their binary mixtures: Experiments, modeling, and process simulation