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Catalysts
Special Issues
Catalytic Conversion of Low Carbon Alkane
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Catalytic Conversion of Low Carbon Alkane

A special issue of Catalysts (ISSN 2073-4344). This special issue belongs to the section "Catalysis in Organic and Polymer Chemistry".

Deadline for manuscript submissions: closed (20 March 2024) | Viewed by 9370

Special Issue Editors

Prof. Dr. Lei Liu

E-Mail Website
Guest Editor
College of Chemical Engineering and Technology, Taiyuan University of Technology, Taiyuan, China
Interests: inorganic porous functional materials; hydrogenolysis; alkane oxidative dehydrogenation; alkane catalytic cracking; alkane aromatization
Prof. Dr. Zhijun Zuo

E-Mail Website
Guest Editor
State Key Laboratory of Clean and Efficient Coal Utilization, Taiyuan University of Technology, Taiyuan, China
Interests: electrocatalysis; thermocatalysis; computational catalysis; low carbon alkane

Special Issue Information

Dear Colleagues,

Low carbon alkanes are widely found in natural gas and petroleum associated gas, the most important component of which is methane. The conversion of low alkanes has been one of the most challenging areas in catalysis research due to the relative inertness of C-H bonds and poor reaction selectivity. The conversion of alkanes to high value-added compounds such as alcohols, ketones, carboxylic acids and olefins has been achieved over the past decades, but there are still problems with high catalyst costs and low conversion efficiency. With the rise of photocatalysis and electrocatalysis technology, low cost, high efficiency and green alkanes conversion methods have become the goal of scientists.

This Special Issue will present the most recent and significant theoretical and experimental studies and discoveries on catalytic conversion of low carbon alkane. Research articles, review articles, as well as short communications are warmly invited. Topics include but are not limited to the following:

  • methane reforming;
  • oxidative coupling of methane;
  • methane to methanol;
  • alkane oxidative dehydrogenation;
  • alkane catalytic cracking;
  • alkane aromatization.

Prof. Dr. Lei Liu
Prof. Dr. Zhijun Zuo
Guest Editors

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 2700 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

  • C-H bond activation
  • low carbon alkane
  • catalyst
  • thermocatalysis
  • photocatalysis
  • electrocatalysis
  • methanol
  • methane reforming
  • oxidative coupling
  • oxydehydrogenation
  • catalytic cracking
  • alkane aromatization

Published Papers (7 papers)

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Research

13 pages, 3124 KiB  
Article
Simple Fabrication of Hydrophobicity-Controlled Fe-ZSM-5 for Aqueous-Phase Partial Oxidation of Methane with Hydrogen Peroxide
by Seok Young Hwang, Minjae Kwon, Jongkook Hwang and Eun Duck Park
Catalysts 2024, 14(4), 280; https://doi.org/10.3390/catal14040280 - 20 Apr 2024
Viewed by 238
Abstract
Surface hydrophobicity is an important factor in controlling the catalytic activity of heterogeneous catalysts in various reactions, particularly liquid-phase reactions using water as the (co)solvent. In this study, the surface hydrophobicity of Fe-ZSM-5 was successfully controlled using a simple coating method in which [...] Read more.
Surface hydrophobicity is an important factor in controlling the catalytic activity of heterogeneous catalysts in various reactions, particularly liquid-phase reactions using water as the (co)solvent. In this study, the surface hydrophobicity of Fe-ZSM-5 was successfully controlled using a simple coating method in which furfuryl alcohol was used as the carbon precursor. Various techniques, such as N2 physisorption, temperature-programmed desorption of ammonia, and contact angle measurements of water droplets, were used to characterize the catalysts. Fe-ZSM-5 catalysts with different degrees of hydrophobicity were used for the aqueous-phase selective oxidation of methane with H2O2. The positive effect of the surface carbon coating on the catalytic performance was confirmed when the carbon content was not sufficiently high to block the pores. Full article
(This article belongs to the Special Issue Catalytic Conversion of Low Carbon Alkane)
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12 pages, 2061 KiB  
Article
Synergistic Effect of Structure and Morphology of ZSM-5 Catalysts on the Transformation of Methanol to Propylene
by Wei Zhang, Kangzhou Wang, Xinhua Gao, Xiaojing Yong and Yanlong Gu
Catalysts 2024, 14(1), 67; https://doi.org/10.3390/catal14010067 - 15 Jan 2024
Viewed by 1038
Abstract
Here, the efficient synthesis of propylene from methanol was achieved using a series of HZSM-5 catalysts. The effect of the structure and morphology of ZSM-5 on the conversion of methanol to propylene was studied. The structure and physicochemical properties of the synthesized catalysts [...] Read more.
Here, the efficient synthesis of propylene from methanol was achieved using a series of HZSM-5 catalysts. The effect of the structure and morphology of ZSM-5 on the conversion of methanol to propylene was studied. The structure and physicochemical properties of the synthesized catalysts were analyzed by multiple characterization techniques. The characterization results revealed that the alumina content rationally modified the acid properties of ZSM-5. When using a ZSM-5 catalyst with a hexagonal single crystal and a Si/Al ratio of 177, the selectivity of propylene reached 39.7% at 480 °C. Furthermore, the formation of methane was reduced. This provides a clue for catalyst design to enable the selective transformation of methanol into propylene. Full article
(This article belongs to the Special Issue Catalytic Conversion of Low Carbon Alkane)
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12 pages, 3902 KiB  
Article
Effect of Molecular Structure of C10 Hydrocarbons on Production of Light Olefins in Catalytic Cracking
by Lingyin Du, Yueyang Han and Youhao Xu
Catalysts 2023, 13(6), 1013; https://doi.org/10.3390/catal13061013 - 16 Jun 2023
Viewed by 1434
Abstract
The effect of the molecular structure of feedstock on the cracking reaction of C10 hydrocarbons to ethylene and propylene over H-ZSM-5 zeolite was investigated. To better compare the effect of decane on the production of light olefins, the thermal cracking and catalytic cracking [...] Read more.
The effect of the molecular structure of feedstock on the cracking reaction of C10 hydrocarbons to ethylene and propylene over H-ZSM-5 zeolite was investigated. To better compare the effect of decane on the production of light olefins, the thermal cracking and catalytic cracking performance of decane were first investigated. As a comparison, the thermal cracking and catalytic cracking of decane were studied by cracking over quartz sand and H-ZSM-5. Compared with the thermal cracking reaction over quartz sand, the catalytic cracking reaction of decane over H-ZSM-5 has a significantly higher conversion and light olefins selectivity, especially when the reaction temperature was lower than 600 °C. On this basis, the catalytic cracking reactions of decane and decene over H-ZSM-5 were further compared. It was found that decene with a double bond structure had high reactivity over H-ZSM-5 and was almost completely converted, and the product was mainly olefin. Compared with decane as feedstock, it has a lower methane yield and higher selectivity of light olefins. Therefore, decene was more suitable for the production of light olefins than decane. To this end, we designed a new light olefin production process. Through olefin cracking, the yield of light olefins in the product can be effectively improved, and the proportion of different light olefins such as ethylene, propylene and butene can be flexibly adjusted. Full article
(This article belongs to the Special Issue Catalytic Conversion of Low Carbon Alkane)
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15 pages, 8357 KiB  
Article
Mesoporous Chromium Catalysts Templated on Halloysite Nanotubes and Aluminosilicate Core/Shell Composites for Oxidative Dehydrogenation of Propane with CO2
by Dmitry Melnikov, Ekaterina Smirnova, Marina Reshetina, Andrei Novikov, Hongqiang Wang, Evgenii Ivanov, Vladimir Vinokurov and Aleksandr Glotov
Catalysts 2023, 13(5), 882; https://doi.org/10.3390/catal13050882 - 13 May 2023
Cited by 1 | Viewed by 1580
Abstract
The oxidative dehydrogenation of alkanes is a prospective method for olefins production. CO2-assisted propane dehydrogenation over metal oxide catalysts provides an opportunity to increase propylene production with collateral CO2 utilization. We prepared the chromia catalysts on various mesoporous aluminosilicate supports, [...] Read more.
The oxidative dehydrogenation of alkanes is a prospective method for olefins production. CO2-assisted propane dehydrogenation over metal oxide catalysts provides an opportunity to increase propylene production with collateral CO2 utilization. We prepared the chromia catalysts on various mesoporous aluminosilicate supports, such as halloysite nanotubes, nanostructured core/shell composites of MCM-41/halloysite (halloysite nanotubes for the core; silica of MCM-41-type for the shell), and MCM-41@halloysite (silica of MCM-41-type for the core; halloysite nanotubes for the shell). The catalysts have been characterized by X-ray fluorescence analysis, low-temperature nitrogen adsorption, X-ray diffraction, temperature-programmed reduction, temperature-programmed desorption of ammonia, transmission electron microscopy with energy-dispersive X-ray spectroscopy, and thermogravimetric analysis. The catalysts’ performance in carbon-dioxide-assisted propane dehydrogenation has been estimated in a fixed-bed reactor at atmospheric pressure. The most stable catalyst is Cr/halloysite, having the lowest activity and the largest pore diameter. The catalyst, Cr/MCM-41/HNT, shows the best catalytic performance: having the highest conversion (19–88%), selectivity (83–30%), and space–time yield (4.3–7.1 mol C3H6/kg catalyst/h) at the temperature range of 550–700 °C. The highest space–time yield could be related to the uniform distribution of the chromia particles over the large surface area and narrow pore size distribution of 2–4 nm provided by the MCM-41-type silica and transport channels of 12–15 nm from the halloysite nanotubes. Full article
(This article belongs to the Special Issue Catalytic Conversion of Low Carbon Alkane)
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15 pages, 3797 KiB  
Article
Effect of the Preparation Method on Cu-MOR/g-C3N4 for Direct Methanol Synthesis from Methane Oxidation by Photothermal Catalysis
by Jun-Cai Hao, Rui-Xin Zhang, Miao Ren, Jia-Xuan Zhao, Zhi-Hua Gao, Lei Liu, Zhu-Xia Zhang and Zhi-Jun Zuo
Catalysts 2023, 13(5), 868; https://doi.org/10.3390/catal13050868 - 10 May 2023
Viewed by 1257
Abstract
Copper-based zeolite catalysts are widely used in methanol synthesis from methane oxidation, but their photothermal catalytic properties have seldom been explored. This study examines the effect of the preparation method on Cu-based zeolite composite graphite-phase carbon nitride catalysts (Cu-MOR/g-C3N4) [...] Read more.
Copper-based zeolite catalysts are widely used in methanol synthesis from methane oxidation, but their photothermal catalytic properties have seldom been explored. This study examines the effect of the preparation method on Cu-based zeolite composite graphite-phase carbon nitride catalysts (Cu-MOR/g-C3N4) for direct methanol synthesis from methane oxidation by photothermal catalysis. Four different preparation methods are employed: liquid phase ion exchange (Cu-MOR/g-C3N4-IE), isovolumetric impregnation (Cu-MOR/g-C3N4-IM), solid-state ion exchange (Cu-MOR/g-C3N4-GR), and hydrothermal synthesis (Cu-MOR/g-C3N4-HT). Cu-MOR/g-C3N4-IE shows the highest methanol yield (3.09 μmol h−1 gcat−1) due to strong interactions between the CuxOy species and g-C3N4, as well as smaller interfacial charge transfer forces. This study provides a new method for the design and synthesis of catalysts for the conversion of methane. Full article
(This article belongs to the Special Issue Catalytic Conversion of Low Carbon Alkane)
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14 pages, 4685 KiB  
Article
Effect of MgFe-LDH with Reduction Pretreatment on the Catalytic Performance in Syngas to Light Olefins
by Jie Li, Changxiao Li, Qiong Tang, Zhijun Zuo, Lei Liu and Jinxiang Dong
Catalysts 2023, 13(3), 632; https://doi.org/10.3390/catal13030632 - 21 Mar 2023
Viewed by 1587
Abstract
MgFe-layered double hydroxides (LDH) were widely used as catalysts for Fischer–Tropsch synthesis to produce light olefins, in which the state of Fe-species may affect the resulting catalytic active sites. Herein, the typical MgFe-LDH was hydrothermally synthesized and the obtained MgFe-LDH was pretreated with [...] Read more.
MgFe-layered double hydroxides (LDH) were widely used as catalysts for Fischer–Tropsch synthesis to produce light olefins, in which the state of Fe-species may affect the resulting catalytic active sites. Herein, the typical MgFe-LDH was hydrothermally synthesized and the obtained MgFe-LDH was pretreated with H2 at different temperatures to reveal the effects of the state of Fe-species on the catalytic performance in Fischer–Tropsch synthesis. MgFe-LDH materials were characterized by X-ray diffraction (XRD), N2 adsorption–desorption, scanning electron microscopy (SEM), transmission electron microscopy (TEM), H2 temperature-programmed reduction (H2-TPR), and X-ray photoelectron spectroscopy (XPS). It was found that a MgO-FeO solid solution would be formed with the increase of the reduction temperature, which made the electrons transfer from Mg atoms to Fe atoms and strengthened the adsorption of CO. The pre-reduced treatment toward Mg-Fe-LDH enabled the FeCx active sites to be easily formed in situ during the reaction process, leading to the high conversion of CO. CO2 temperature-programmed desorption (CO2-TPD) and H2 temperature-programmed desorption (H2-TPD) analysis confirmed that the surface basicity of the catalysts was increased and the hydrogenation capacity was weakened, the secondary hydrogenation of the olefins was inhibited, and therefore as were the enhancement of O/P in the product and the high selectivity of light olefins (42.7%). Full article
(This article belongs to the Special Issue Catalytic Conversion of Low Carbon Alkane)
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17 pages, 6486 KiB  
Article
Ni-Al Self-Propagating High-Temperature Synthesis Catalysts in Dry Reforming of Methane to Hydrogen-Enriched Fuel Mixtures
by Svetlana Tungatarova, Galina Xanthopoulou, George Vekinis, Konstantinos Karanasios, Tolkyn Baizhumanova, Manapkhan Zhumabek and Marzhan Sadenova
Catalysts 2022, 12(10), 1270; https://doi.org/10.3390/catal12101270 - 18 Oct 2022
Cited by 2 | Viewed by 1550
Abstract
The worldwide increase in demand for environmentally friendly energy has led to the intensification of work on the synthesis of H2-containing fuel. The dry reforming of methane has become one of the most important avenues of research since the consumption of [...] Read more.
The worldwide increase in demand for environmentally friendly energy has led to the intensification of work on the synthesis of H2-containing fuel. The dry reforming of methane has become one of the most important avenues of research since the consumption of two greenhouse gases reduces the rate of global warming. A study of NiAl composite materials as catalysts for methane reforming has been carried out. Self-propagating high-temperature synthesis (SHS) has been used to produce NiAl catalysts. Comparative studies were carried out regarding the dry reforming and partial oxidation of methane, as well as catalysts prepared using the impregnation (IM) and SHS methods. A catalyst with 29% Ni and 51% Al after SHS contains the phases of NiAl and NiAl2O4, which are active phases in the dry reforming of methane. The optimal crystal lattice parameter (for the maximum possible conversion of CO2 and CH4) is 3.48–3.485 Å for Al2O3, which plays the role of a catalyst carrier, and 1.42 Å, for NiAl2O4, which plays the role of a catalyst. The aim of the work is to develop a new and efficient catalyst for the dry reforming of methane into a synthesis gas, which will further promote the organization of a new era of environmentally friendly energy-saving production methods. Full article
(This article belongs to the Special Issue Catalytic Conversion of Low Carbon Alkane)
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