Dynamics of a mixed slurry reactor for the three-phase methanol synthesis

Šetinc, Marko; Levec, Janez

doi:10.1016/s0009-2509(01)00212-3

Cited by 35 publications

(11 citation statements)

References 13 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This is probably one of the latest and most complete studies about the synthesis of methanol over a CuO/ZnO/Al 2 O 3 catalyst in gas phase. More recent studies proposed a kinetic model for a three phase methanol synthesis [38], with a Cu/ZnO/Al 2 O 3 /Zr 2 O 3 catalyst [39], or micro kinetic models [40,41].…”

Section: Introductionmentioning

confidence: 99%

Direct synthesis of dimethyl ether from syngas over mechanical mixtures of CuO/ZnO/Al2O3 and γ-Al2O3: Process optimization and kinetic modelling

Peláez

Marín

Ordóñez

2017

Fuel Processing Technology

View full text Add to dashboard Cite

This article explores the use of mechanical mixtures of a methanol synthesis catalyst (CuO/ZnO/Al 2 O 3) and acid catalysts (-Al 2 O 3) for enabling the one-step formation of dimethyl-ether from syngas. The study involved the determination of the optimal catalytic system composition and operating conditions in terms of reactant conversion and dimethylether yield. The catalysts mixture that exhibited the best performance consisted of 92.5% wt. of CuO/ZnO/Al 2 O 3 (7.5% wt. of -Al 2 O 3), when operated with an excess of H 2 (H 2 /CO > 1.5) and a small amount of CO 2 (4-6%) in the feed. The influence of temperature (250-270°C) was less marked, due to the influence of the equilibrium. The final purpose of the study of these properties is to develop one of the first kinetic models for the use of mechanical mixtures of commercial catalysts for this reaction. The experimental data were used to fit and validate a kinetic model based on four reactions: synthesis of methanol from CO, CO 2 , water gas shift reaction and methanol dehydration. At the studied reaction conditions, synthesis of methanol is kinetically relevant whereas water gas shift reaction and methanol dehydration are close to equilibrium. The inhibition caused by water was also accounted for in the kinetic model.

show abstract

Section: Introductionmentioning

confidence: 99%

Direct synthesis of dimethyl ether from syngas over mechanical mixtures of CuO/ZnO/Al2O3 and γ-Al2O3: Process optimization and kinetic modelling

Peláez

Marín

Ordóñez

2017

Fuel Processing Technology

View full text Add to dashboard Cite

show abstract

“…However, the prevailing view is that methanol is produced primarily through CO 2 hydrogenation [17][18][19][20][21]. The kinetics of low-pressure methanol synthesis has been investigated by numerous authors [22][23][24][25][26][27][28][29].…”

Section: Reaction Kineticsmentioning

confidence: 99%

Optimization of Methanol Yield from a Lurgi Reactor

et al. 2011

View full text Add to dashboard Cite

Methanol is an important chemical with the potential to become an alternative fuel. An optimization study was performed for a Lurgi methanol synthesis reactor using the commercial process simulator Aspen Plus. The optimization routine is coupled with a steady-state model of the methanol synthesis reactor. Syngas inlet temperature, steam drum pressure, and cooling water volumetric flow rate were optimized so that methanol production in the reactor outlet was maximized. The methanol yield increased by 7.04 %.

show abstract

“…The dynamic simulation is preferred to steady-state simulations in operability studies since the former provides a realistic description of the transient states of the reactor owing to the fact that the numerical solution strategies employed in dynamic models are more robust than the solution of a typical steady-state model. Thus it allows for safe and trustworthy studies of the control and optimization of the reactor (Vasco de Toledo et al, 2001;Setinc and Levecb, 2001). …”

Section: Dynamic Simulationmentioning

confidence: 99%