CO2 hydrogenation to methanol at pressures up to 950bar

Tidona, Bruno; Koppold, Clemens; Bansode, Atul; Urakawa, Atsushi; Rohr, Philipp Rudolf von

doi:10.1016/j.supflu.2013.03.027

Cited by 57 publications

(41 citation statements)

References 29 publications

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“…Despite this difference, the p exponent, which represents the rate of the functions in Eq. (10)(11)(12), is similar for DME and methanol formation. This is due to the larger amount DME formed compared to methanol.…”

Section: Resultsmentioning

confidence: 75%

“…This is also seen as a higher A2 value for DME than methanol in Eq. (10)(11)(12) and at the end of the experiment the gas in the reaction cell contained a higher concentration of DME than methanol. The Cat_EIWI catalyst yielded nearly no DME and showed a high selectivity for methanol.…”

Section: Resultsmentioning

confidence: 99%

“…Methanol is one of the main CO2 hydrogenation products 2,6 which can be directly dehydrated to DME in a single batch reaction. Both these molecules are valuable alternative fuels 2,[7][8][9] and they are also used as feedstocks and intermediates for producing various chemicals and as energy carriers for fuel cells 7,[10][11][12] . Methanol can typically be produced from synthesis gas at a pressure between 50-100 bar and at a temperature between 200-300 °C 6,[12][13][14] .…”

Section: Introductionmentioning

confidence: 99%

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Time evolution of the CO2 hydrogenation to fuels over Cu-Zr-SBA-15 catalysts

Atakan

Erdtman

Mäkie

et al. 2018

Journal of Catalysis

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The self-archived postprint version of this journal article is available at Linköping University Institutional Repository (DiVA): http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-147297 N.B.: When citing this work, cite the original publication.Atakan, A., Erdtman, E., Mäkie, P., Ojamäe, L., Odén, M., (2018) ABSTRACT: Time evolution of catalytic CO2 hydrogenation to methanol and dimethyl ether (DME) has been investigated in a hightemperature high-pressure reaction chamber where products accumulate over time. The employed catalysts are based on a nano-assembly composed of Cu nanoparticles infiltrated into a Zr doped SiOx mesoporous framework (SBA-15): Cu-Zr-SBA-15. The CO2 conversion was recorded as a function of time by gas chromatography-mass spectrometry (GC-MS) and the molecular activity on the catalyst's surface was examined by diffuse reflectance in-situ Fourier transform infrared spectroscopy (DRIFTS). The experimental results showed that after 14 days a CO2 conversion of 25% to methanol and DME was reached when a DME selective catalyst was used which was also illustrated by thermodynamic equilibrium calculations. With higher Zr content in the catalyst, greater selectivity for methanol and a total 9.5 % conversion to methanol and DME was observed, yielding also CO as an additional product. The time evolution profiles indicated that DME is formed directly from methoxy groups in this reaction system. Both DME and methanol selective systems show the thermodynamically highest possible conversion.

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Section: Resultsmentioning

confidence: 75%

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Time evolution of the CO2 hydrogenation to fuels over Cu-Zr-SBA-15 catalysts

Atakan

Erdtman

Mäkie

et al. 2018

Journal of Catalysis

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“…For example, the equilibrium can be shifted by the use of membranes [10][11][12], using solvents such as n-dodecane [13], TEGDME [14] or alcohols [15]. Another way to shift the equilibrium is by condensation of the products vapors either by high pressure (200 bar) [16], very high pressure (>360bar) [17], a radial temperature gradient [18] or a temperature gradient between a hot and a cold plate [19]. However, all these proposed methods introduce extra process steps, process equipment or increased capital cost due to high pressure equipment.…”

Section: Methanol Synthesismentioning

confidence: 99%

A novel condensation reactor for efficient CO2 to methanol conversion for storage of renewable electric energy

Bos

Brilman

2015

Chemical Engineering Journal

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A novel reactor design for the conversion of CO 2 and H 2 to methanol is developed. The conversion limitations because of thermodynamic equilibrium are bypassed via in situ condensation of a water/methanol mixture. Two temperatures zones inside the reactor ensure optimal catalyst activity (high temperature) and full conversion by condensation at a lower temperature in a separate zone. Due to this full gas conversion there is no need for an external recycle of reactants. Experimental work confirmed full carbon conversion (>99.5%) and high methanol selectivity (>99.5% on carbon basis). Additionally, it was shown that due the temperature gradient inside the reactor significant reaction rates are achieved under natural convection conditions.

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“…Untuk itu diperlukan reaksi balik water gas shift (Persamaan 6) untuk memperoleh CO, sehingga komposisi bahan baku sepenuhnya sama dengan produk steam reforming gas alam. Pada perkembangan berikutnya, banyak dilakukan litbang katalisator yang selektif untuk menjalankan proses sintesis metanol dengan reaksi tunggal (Persamaan 8) [17][18][19][20] .…”

Section: Pembahasanunclassified

HTGR Kogenerasi Produksi Hidrogen Untuk Konversi Co2 Menjadi Metanol

Salimy

Alimah²

2016

Jurnal Pengembangan Energi Nuklir

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CO2 hydrogenation to methanol at pressures up to 950bar

Cited by 57 publications

References 29 publications

Time evolution of the CO2 hydrogenation to fuels over Cu-Zr-SBA-15 catalysts

Time evolution of the CO2 hydrogenation to fuels over Cu-Zr-SBA-15 catalysts

A novel condensation reactor for efficient CO2 to methanol conversion for storage of renewable electric energy

HTGR Kogenerasi Produksi Hidrogen Untuk Konversi Co2 Menjadi Metanol

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