Kinetics of the synthesis of methanol from CO + H2 and CO + CO2 + H2 over copper-based amorphous catalysts

Coteron, A.; Hayhurst, A.N.

doi:10.1016/0009-2509(94)80039-1

Cited by 57 publications

(21 citation statements)

References 34 publications

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“…Figure 8, presenting a selection of the results from these two studies, clearly shows the analogy between the effects of water and CO 2 on the methanol synthesis. This effect from CO 2 on methanol synthesis kinetics is backed up by other experimental investigations for both gas phase [34][35][36] and Figure 6: (a), conversion (formation) of CO 2 , and (b), C selectivity toward CO 2 , against reaction temperature in methanol synthesis from Syngas-2; ( ) dry feed at P=50 bar and SV=650 Ncm 3 /min/g, ( ) 6.6 mol% water in Syngas-2 at P=53.6 bar and SV=800 Ncm 3 /min/g, and ( ) 9.4 mol% water in Syngas-2 at P=55.2 bar and SV=650 Ncm 3 /min/g. The respective equilibrium CO 2 conversion is depicted by the dash lines.…”

Section: Effect Of Watersupporting

confidence: 62%

Direct dimethyl ether synthesis from synthesis gas: The influence of methanol dehydration on methanol synthesis reaction

et al. 2016

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Direct dimethyl ether (DME) synthesis from synthesis gas is studied with regard to potential effects of methanol dehydration on methanol formation and copperbased catalyst performance. For this, the influence of the operating conditions (space velocity, temperature, pressure, time-on-stream and syngas composition) on activity, selectivity and stability of the catalyst was studied and compared for methanol synthesis and direct DME synthesis. The advantage of the direct over the two-step DME synthesis is apparent at conditions where syngas conversion to methanol is thermodynamically limited. However, under the applied operating conditions, results suggest that combining methanol synthesis and dehydration has a negative effect on the methanol formation kinetics. The origin of the observed phenomena is investigated by varying dehydration catalyst and by introducing dehydration products (DME and water) into the methanol synthesis feed. Choice of the solid acid catalyst does not seem to affect methanol formation, and DME is also found to be practically inert over the methanol synthesis catalysts. Water injection, on the other hand, led to a significant decrease in the methanol synthesis rate. Thus, formation of an additional amount of water through methanol dehydration might be an explanation for the lower methanol formation rate in the direct DME synthesis.

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Section: Effect Of Watersupporting

confidence: 62%

Direct dimethyl ether synthesis from synthesis gas: The influence of methanol dehydration on methanol synthesis reaction

et al. 2016

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“…However, as the direct hydrogenation of CO does scarcely occur on commercial catalysts, a certain amount of CO 2 needs to be present in the reactor feed to enable WGS and CO conversion to methanol , , , , . A maximum methanol formation rate was experimentally observed by various researchers at a molar CO 2 concentration of approximately 2 mol.‐% of carbon in the reactor feed , , , . With a further increase in CO 2 content, the kinetics of the methanol synthesis is known to decelerate and the equilibrium yield decreases , .…”

Section: Technological Overviewmentioning

confidence: 99%

Methanol Synthesis – Industrial Challenges within a Changing Raw Material Landscape

Nestler

Krüger

Full

et al. 2018

Chemie Ingenieur Technik

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Worldwide production capacities of carbon‐based chemicals and associated products are steadily increasing. At the same time the reduction of greenhouse gas emissions such as carbon dioxide is of paramount importance in order to mitigate the anthropogenic impact of climate change. In Carbon2Chem® a cross industrial network develops concepts towards the utilization of steel mill gases for the sustainable production of “green” base chemicals, including methanol. This Review describes the technological challenges emerging from the use of these alternative feedstocks, specifically in the context of methanol production processes.

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“…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

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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 %.

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Kinetics of the synthesis of methanol from CO + H2 and CO + CO2 + H2 over copper-based amorphous catalysts

Cited by 57 publications

References 34 publications

Direct dimethyl ether synthesis from synthesis gas: The influence of methanol dehydration on methanol synthesis reaction

Direct dimethyl ether synthesis from synthesis gas: The influence of methanol dehydration on methanol synthesis reaction

Methanol Synthesis – Industrial Challenges within a Changing Raw Material Landscape

Optimization of Methanol Yield from a Lurgi Reactor

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