scholarly journals High Active and Selective Ni/Ceo2-Al2O3 and Pd-Ni/Ceo2-Al2O3 Catalysts for Oxy-Steam Reforming of Methanol

2018 ◽  
Author(s):  
Pawel Mierczynski ◽  
Agnieszka Mierczynska ◽  
Radoslaw Ciesielski ◽  
Magdalena Mosinska ◽  
Waldemar Maniukiewicz ◽  
...  
Keyword(s):  
Nickel Catalyst ◽  
Steam Reforming ◽  
Supported Catalysts ◽  
Binary Oxide ◽  
Impregnation Method ◽  
Ni Catalysts ◽  
Catalytic Systems ◽  
Steam Reforming Of Methanol ◽  
Bimetallic Palladium ◽  
Excellent Stability

Herein, we report about the monometallic Ni and bimetallic Pd-Ni catalysts supported on CeO2-Al2O3 binary oxide, which were investigated in oxy-steam reforming of methanol (OSRM). Monometallic and bimetallic supported catalysts were prepared by wet aqueous impregnation and subsequent impregnation method, respectively. The physicochemical properties of the catalytic systems were investigated using various methods such as: BET, XRD, TPR-H2, TPD-NH3, XPS and SEM-EDS techniques. It has been proven that the addition of palladium to the nickel catalyst facilitates its reduction. The activity tests performed for all catalysts confirmed the promotion effect of palladium on catalytic activity of nickel catalyst and selectivity towards hydrogen production. Both nickel and bimetallic palladium-nickel supported catalysts showed excellent stability during the reaction. Such catalytic systems are valuable for the advance of the field of fuel cell technology.

scholarly journals High Active and Selective Ni/CeO2–Al2O3 and Pd–Ni/CeO2–Al2O3 Catalysts for Oxy-Steam Reforming of Methanol

Catalysts ◽  
2018 ◽  
Vol 8 (9) ◽  
pp. 380 ◽  
Author(s):  
Pawel Mierczynski ◽  
Agnieszka Mierczynska ◽  
Radoslaw Ciesielski ◽  
Magdalena Mosinska ◽  
Magdalena Nowosielska ◽  
...  
Keyword(s):  
Steam Reforming ◽  
Photoelectron Spectroscopy ◽  
Supported Catalysts ◽  
Energy Dispersive Spectrometer ◽  
Nickel Catalysts ◽  
Impregnation Method ◽  
Catalytic Systems ◽  
X Ray ◽  
Steam Reforming Of Methanol ◽  
Temperature Programmed

Herein, we report monometallic Ni and bimetallic Pd–Ni catalysts supported on CeO2–Al2O3 binary oxide which are highly active and selective in oxy-steam reforming of methanol (OSRM). Monometallic and bimetallic supported catalysts were prepared by an impregnation method. The physicochemical properties of the catalytic systems were investigated using a range of methods such as: Brunauer–Emmett–Teller (BET), X-ray Powder Diffraction (XRD), Temperature-programmed reduction (TPR–H2), Temperature-programmed desorption (TPD–NH3), X-ray photoelectron spectroscopy (XPS) and Scanning Electron Microscope equipped with an energy dispersive spectrometer (SEM–EDS). We demonstrate that the addition of palladium facilitates the reduction of nickel catalysts. The activity tests performed for all catalysts confirmed the promotion effect of palladium on the catalytic activity of nickel catalyst and their selectivity towards hydrogen production. Both nickel and bimetallic palladium–nickel supported catalysts showed excellent stability during the reaction. The reported catalytic systems are valuable to make advances in the field of fuel cell technology.

Modern Ni and Pd-Ni Catalysts Supported on Sn-Al Binary Oxide for Oxy-Steam Reforming of Methanol

2018 ◽  
Vol 6 (9) ◽  
pp. 1687-1699 ◽  
Author(s):  
Pawel Mierczynski ◽  
Agnieszka Mierczynska ◽  
Radoslaw Ciesielski ◽  
Waldemar Maniukiewicz ◽  
Jacek Rogowski ◽  
...  
Keyword(s):  
Steam Reforming ◽  
Binary Oxide ◽  
Ni Catalysts ◽  
Steam Reforming Of Methanol

Influence of the Zn–Al binary oxide composition on the physicochemical and catalytic properties of Ni catalysts in the oxy-steam reforming of methanol

2017 ◽  
Vol 121 (2) ◽  
pp. 453-472 ◽  
Author(s):  
Paweł Mierczynski ◽  
Magdalena Mosinska ◽  
Mateusz Zakrzewski ◽  
Bartosz Dawid ◽  
Radoslaw Ciesielski ◽  
...  
Keyword(s):  
Steam Reforming ◽  
Catalytic Properties ◽  
Binary Oxide ◽  
Ni Catalysts ◽  
Oxide Composition ◽  
Steam Reforming Of Methanol

scholarly journals Catalysts for Hydrogen Generation via Oxy–Steam Reforming of Methanol Process

Materials ◽  
2020 ◽  
Vol 13 (24) ◽  
pp. 5601
Author(s):  
Magdalena Mosińska ◽  
Małgorzata I. Szynkowska-Jóźwik ◽  
Paweł Mierczyński
Keyword(s):  
Low Temperature ◽  
Steam Reforming ◽  
Atmospheric Pressure ◽  
Hydrogen Generation ◽  
High Volume ◽  
Pure Hydrogen ◽  
Methanol Reforming ◽  
Catalytic Systems ◽  
Steam Reforming Of Methanol ◽  
Production Of Hydrogen

The production of pure hydrogen is one of the most important problems of the modern chemical industry. While high volume production of hydrogen is well under control, finding a cheap method of hydrogen production for small, mobile, or his receivers, such as fuel cells or hybrid cars, is still a problem. Potentially, a promising method for the generation of hydrogen can be oxy–steam-reforming of methanol process. It is a process that takes place at relatively low temperature and atmospheric pressure, which makes it possible to generate hydrogen directly where it is needed. It is a process that takes place at relatively low temperature and atmospheric pressure, which makes it possible to generate hydrogen directly where it is needed. This paper summarizes the current state of knowledge on the catalysts used for the production of hydrogen in the process of the oxy–steam-reforming of methanol (OSRM). The development of innovative energy generation technologies has intensified research related to the design of new catalysts that can be used in methanol-reforming reactions. This review shows the different pathways of the methanol-reforming reaction. The paper presents a comparison of commonly used copper-based catalysts with other catalytic systems for the production of H2 via OSRM reaction. The surface mechanism of the oxy–steam-reforming of methanol and the kinetic model of the OSRM process are discussed.

The Performance of the Cu-Zn/CeO2 Catalysts in the Steam Reforming of Methanol Reaction

2011 ◽  
Vol 324 ◽  
pp. 157-161 ◽  
Author(s):  
Mary Mrad ◽  
Cédric Gennequin ◽  
Antoine Aboukaïs ◽  
Edmond Abi-Aad
Keyword(s):  
Catalytic Activity ◽  
Steam Reforming ◽  
Conversion Rate ◽  
Methanol Conversion ◽  
Impregnation Method ◽  
Copper Species ◽  
Steam Reforming Of Methanol ◽  
Optimum Content

The performances of different xCu10Ce and xZn10Ce (x = 1, 3, and 5) catalysts prepared by impregnation method then pelletised, were investigated in the steam reforming of methanol (SRM) under a GHSV = 15500 h-1 with H2O/CH3OH = 2. The impregnation of copper over ceria supports shows better results than that of zinc. The catalytic activity in the Cu-based depends on the dispersion of the copper species. The methanol conversion rate is related to the formation of an optimum content of reduced copper species.

scholarly journals Oxy-Steam Reforming of Liquefied Natural Gas (LNG) on Mono- and Bimetallic (Ag, Pt, Pd or Ru)/Ni Catalysts

Catalysts ◽  
2021 ◽  
Vol 11 (11) ◽  
pp. 1401
Author(s):  
Pawel Mierczynski ◽  
Magdalena Mosinska ◽  
Waldemar Maniukiewicz ◽  
Krasimir Vasilev ◽  
Malgorzata Iwona Szynkowska-Jozwik
Keyword(s):  
Natural Gas ◽  
Steam Reforming ◽  
Hydrogen Generation ◽  
Active Phase ◽  
Liquefied Natural Gas ◽  
Precipitation Method ◽  
Ni Catalyst ◽  
Ni Catalysts ◽  
Catalytic Systems ◽  
Production Of Hydrogen

This work presents, for the first time, the comparative physicochemical and reactivity studies of a range of bimetallic Pt-Ni, Pd-Ni, Ru-Ni, and Ag-Ni catalysts in the oxy-steam reforming (OSR) of liquefied natural gas (LNG) reaction towards hydrogen generation. In order to achieve the intended purpose of this work, a binary oxide CeO2·ZrO2 (1:2) support was prepared via a co-precipitation method. The catalysts’ physicochemical properties were studied using X-ray diffraction (XRD), BET, TPR-H2, TPD-NH3, SEM-EDS and XPS methods. The highest activity in the studied process was exhibited by the 1%Pt-5%Ni catalyst supported on CeO2·ZrO2 (1:2) system. The highest activity of this system is explained by the specific interactions occurring between the components of the active phase and between the components of the active phase and the carrier itself. The activity results showed that this catalytic system exhibited above 71% of the methane conversion at 600 °C and 60% yield of hydrogen formation. The results of this work demonstrate that the Pt-Ni and Ru-Ni catalytic systems hold promise to be applied in the production of hydrogen to power solid oxide fuel cells.

scholarly journals The influence of the size of metal particles on the catalytic activity of Ni and Cu-supported catalysts in methanol reforming reaction

2019 ◽  
Vol 129 (1) ◽  
pp. 219-233
Author(s):  
Oleksandr Shtyka ◽  
Radoslaw Ciesielski ◽  
Evgeny Kitsyuk ◽  
Andrey Savitsky ◽  
Tomasz Maniecki
Keyword(s):  
Carbon Nanotubes ◽  
Catalytic Activity ◽  
Metal Nanoparticles ◽  
Steam Reforming ◽  
Supported Catalysts ◽  
Metal Particles ◽  
Methanol Reforming ◽  
Steam Reforming Of Methanol ◽  
Supported Nanoparticles

Abstract The aim of the work was to investigate how the size of Ni and Cu-supported nanoparticles influence their activity in an oxidative steam reforming of methanol. The size of metal particles was controlled by the initial introduction or elimination of oxygen-containing groups on the surface of carbon nanotubes. The results of the activity tests showed that catalysts with the smallest metal nanoparticles were the least active since they easily underwent oxidation during the process.

The Effect of ZnAl2O4 on the Performance of Cu/ZnxAlyOx+1.5y Supported Catalysts in Steam Reforming of Methanol

2013 ◽  
Vol 56 (11) ◽  
pp. 1015-1025 ◽  
Author(s):  
Paweł Mierczynski ◽  
Krasimir Vasilev ◽  
Agnieszka Mierczynska ◽  
Waldemar Maniukiewicz ◽  
Tomasz Maniecki
Keyword(s):  
Steam Reforming ◽  
Supported Catalysts ◽  
Steam Reforming Of Methanol

scholarly journals Novel Rh(Pd)-Cu(Ni) supported catalysts for oxy-steam reforming of methanol

2020 ◽  
Vol 13 (1) ◽  
pp. 3183-3195 ◽  
Author(s):  
Pawel Mierczynski ◽  
Magdalena Mosinska ◽  
Waldemar Maniukiewicz ◽  
Krasimir Vasilev ◽  
Malgorzata I. Szynkowska
Keyword(s):  
Steam Reforming ◽  
Supported Catalysts ◽  
Steam Reforming Of Methanol ◽  
Ni Supported Catalysts

scholarly journals Coke-Resistant Rh and Ni Catalysts Supported on γ-Al2O3 and CeO2 for Biogas Oxidative Steam Reforming

2020 ◽  
Vol 2 (1) ◽  
pp. 10
Author(s):  
Simona Renda ◽  
Antonio Ricca ◽  
Vincenzo Palma
Keyword(s):  
Steam Reforming ◽  
Fossil Fuels ◽  
Supported Catalysts ◽  
Coke Formation ◽  
Coke Deposition ◽  
Ni Catalysts ◽  
Ceo2 Sample ◽  
Active Metal ◽  
Metal Sintering ◽  
Selection Of

The depletion of fossil fuels and the growing concerns related to the environmental impact of their processing has progressively switched the interest towards the utilization of biomass-derived materials for a large variety of processes. Among them, biogas, which is a CH4-rich gas deriving from anaerobic digestion of biomass, has acquired a lot of interest as a feedstock for reforming processes. The main issue in employing biogas is related to the carbon deposition and active metal sintering, which are both responsible for the deactivation of the catalyst. In this work, bimetallic and monometallic Rh- and Ni-based formulations were supported on alumina and ceria with the aim of evaluating their activity and stability in biogas oxidative steam reforming. The Rh addition to the monometallic Ni/γ-Al2O3 formulation enhances its catalytic performances; nevertheless, this induces a higher coke deposition, thus suggesting a preferential coke formation on Rh sites. The initial activity of the CeO2-supported catalysts was found to be lower than the Al2O3-supported catalysts, but the 5%Ni/CeO2 sample showed a very good stability during the test and, despite the lower activity, 0.5%Rh-5%Ni/CeO2 did not show coke deposition. The results suggest that the promotion of Ni/CeO2 catalysts with other active metals could lead to the selection of a highly stable and performing formulation for biogas oxidative steam reforming.

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