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New Catalysts and Reactors for the Synthesis or Conversion of...
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New Catalysts and Reactors for the Synthesis or Conversion of Methanol, 2nd Edition

A special issue of Catalysts (ISSN 2073-4344). This special issue belongs to the section "Environmental Catalysis".

Deadline for manuscript submissions: 31 December 2024 | Viewed by 5064

Special Issue Editor

Prof. Dr. Jaime Soler

E-Mail Website
Guest Editor
Catalysis, Molecular Separations and Reactor Engineering Group (CREG), Aragon Institute for Engineering Research (I3A), University of Zaragoza, 50009 Zaragoza, Spain
Interests: heterogeneous catalysis; fluidized bed reactors; membrane reactors; zeolites; fuel cells; energy production systems; process modelling; biofuels; biomass utilization
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

This issue is a continuation of the previous successful Special Issues “New Catalysts and Reactors for the Synthesis or Conversion of Methanol”.

The scientific community widely considers global warming a major challenge to our society. The main cause of this critical issue is the increase in CO2 concentrations in the atmosphere due to the massive use of fossil fuels, which has only grown in recent years. Methanol is a versatile matter used both for industrial purposes and for various day-to-day life activities. As it exhibits high effectiveness as an energy carrier, renewable methanol has been proposed by Nobel Prize winner G. Olah as a means to close the CO2 loop. Methanol can be environmentally synthesized from any feedstock, and its reforming reaction does not alter the net CO2 emissions to the atmosphere.

One of the ways to address this problem is to use CO2 as a resource in the synthesis of valuable products, such as methanol, which can be obtained from CO2, and hydrogen provided from renewable energy (solar or wind power). In the industry, methanol synthesis using the catalyst CuO/ZnO/Al2O3 occurs at a high pressure (50 bar). This is, of course, very costly, and hence, one of the main aims of researchers is to find the right modifications to the traditional catalyst in order to make it work at a lower pressure while maintaining its high selectivity.

Methanol to hydrocarbon (MTH) is a promising process because it supplies a wide range of compounds as important intermediates in petrochemical synthesis, such as light olefins and high-quality gasoline. The conversion of methanol to hydrocarbons can be catalyzed by various catalysts (HZSM-5 for methanol to gasoline, SAPO-34 for methanol to olefines, etc.). The role of both catalysts and reactors in these reactions is very important, and the kinetic modeling of coke formation is necessary to reveal the effect of the coke content on the product distribution of the reaction and optimize the design and operation of the reactor.

In this Special Issue entitled “New Catalysts and Reactors for the Synthesis or Conversion of Methanol, 2nd Edition”, we welcome all kinds of works in the form of original research papers or short reviews that reflect the state-of-the-art of the research area dealing with methanol applications, based on new catalysts or reactors.

Prof. Dr. Jaime Soler
Guest Editor

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Catalysts is an international peer-reviewed open access monthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2200 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • methanol synthesis
  • CO2 hydrogenation
  • MTG
  • MTO
  • hydrogen
  • supported catalysts
  • zeolites
  • chemical reactors

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Related Special Issue

Published Papers (3 papers)

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Research

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15 pages, 3081 KiB  
Article
Direct Synthesis of Dimethyl Carbonate from Methanol and CO2 over ZrO2 Catalysts Combined with a Dehydrating Agent and a Cocatalyst
by Dichao Shi, Svetlana Heyte, Mickaël Capron and Sébastien Paul
Catalysts 2024, 14(10), 657; https://doi.org/10.3390/catal14100657 - 24 Sep 2024
Viewed by 906
Abstract
Zirconia nanocrystals as catalysts for the direct synthesis of dimethyl carbonate (DMC) from methanol and carbon dioxide have received significant interest recently. In this paper, three zirconia-based catalysts presenting different monoclinic and tetragonal phase contents are prepared and characterized by X-ray diffraction (XRD), [...] Read more.
Zirconia nanocrystals as catalysts for the direct synthesis of dimethyl carbonate (DMC) from methanol and carbon dioxide have received significant interest recently. In this paper, three zirconia-based catalysts presenting different monoclinic and tetragonal phase contents are prepared and characterized by X-ray diffraction (XRD), N2 adsorption–desorption, transmission electron microscopy (TEM), and temperature-programmed desorption of NH3 and CO2 (NH3-TPD and CO2-TPD). The catalytic performances of these solids are evaluated in terms of DMC production. This production is low when using the bare zirconias, but it is significantly increased in the presence of 1,1,1-trimethoxymethane (TMM) playing the role of a dehydrating agent, which shifts the thermodynamic equilibrium. Moreover, the production of DMC is further improved by adding a second solid catalyst (cocatalyst), the molecular sieve 13X, to accelerate the hydration of TMM. Hence, the molecular sieve 13X plays a dual role by trapping water molecules formed by the reaction of DMC synthesis and providing strong acidic sites catalyzing TMM hydrolysis. To the best of our knowledge, the combination of two solid catalysts in the reaction medium to accelerate the water elimination to obtain higher DMC production from CO2 and methanol has never been reported. Full article
(This article belongs to the Special Issue New Catalysts and Reactors for the Synthesis or Conversion of Methanol, 2nd Edition)
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16 pages, 8120 KiB  
Article
Methanol Reforming over Cu-Ce-Al Catalysts Prepared by Solution Combustion Synthesis Method
by Yernur B. Assylbekov, Galina Xanthopoulou, Svetlana A. Tungatarova, Tolkyn S. Baizhumanova, Yermek A. Aubakirov and Manapkhan Zhumabek
Catalysts 2024, 14(6), 386; https://doi.org/10.3390/catal14060386 - 15 Jun 2024
Cited by 1 | Viewed by 876
Abstract
The demand for environmentally friendly types of energy is growing all over the world, which naturally increases the intensity of studies on fuel mixtures that have high contents of hydrogen. In this case, methanol steam reforming is a leading effective research area, as [...] Read more.
The demand for environmentally friendly types of energy is growing all over the world, which naturally increases the intensity of studies on fuel mixtures that have high contents of hydrogen. In this case, methanol steam reforming is a leading effective research area, as it is a process with low energy consumption. The results of the steam reforming of methanol on synthesized catalysts by the solution combustion synthesis (SCS), self-propagating high-temperature synthesis (SHS), and moisture impregnation capacity methods are presented. A study was conducted to evaluate the activity of Cu-Ce-Al catalysts with varying ratios of components for hydrogen production, comparing the SCS method with the other mentioned methods. The methanol conversion reached 99% and the selectivity of H2 was 88% at 500 °C. The study showed that the replacement of Al3+ ions with Cu2+ and Ce3+ cations leads to the formation of spinels, such as CuAl2O4 and CeAlO3. As a consequence, the CuAl2O4 and CeAlO3 lattice parameters increase because of the difference in the ionic radii of Al3+ (0.53 Å), Cu2+ (0.73 Å), and Ce3+ (1.07 Å). Advantages of SCS catalysts in the process of the steam reforming of methanol have been demonstrated. The goal of this research is to create a new catalyst for methanol’s conversion into hydrogen-containing fuel mixtures, the production of which, in the future, will be a huge step in the transition to more energy-efficient and environmentally friendly methods of their synthesis. Full article
(This article belongs to the Special Issue New Catalysts and Reactors for the Synthesis or Conversion of Methanol, 2nd Edition)
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Review

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19 pages, 1272 KiB  
Review
A Review of Catalysts for Synthesis of Dimethyl Carbonate
by Dong Wang, Feng Shi and Lingtao Wang
Catalysts 2024, 14(4), 259; https://doi.org/10.3390/catal14040259 - 13 Apr 2024
Cited by 4 | Viewed by 2672
Abstract
Dimethyl carbonate (DMC) is widely used as an intermediate and solvent in the organic chemical industry. In recent years, compared with the traditional DMC production methods (phosgene method, transesterification method), methanol oxidation carbonylation method, gas-phase methyl nitrite method, and the direct synthesis of [...] Read more.
Dimethyl carbonate (DMC) is widely used as an intermediate and solvent in the organic chemical industry. In recent years, compared with the traditional DMC production methods (phosgene method, transesterification method), methanol oxidation carbonylation method, gas-phase methyl nitrite method, and the direct synthesis of CO2 and methanol method have made much progress in the synthesis process and development of catalysts. The key to the industrial application of DMC synthesis technology is the design and development of high-performance catalysts. Therefore, this paper reviews the research status of the methanol oxidative carbonylation method, gas-phase methyl nitrite method, and direct synthesis method of CO2 and methanol in the aspects of new catalyst design, catalyst preparation, and catalytic mechanism, and puts forward the problems to be solved and the future development direction of DMC catalysts. Full article
(This article belongs to the Special Issue New Catalysts and Reactors for the Synthesis or Conversion of Methanol, 2nd Edition)
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