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.

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 Methanol Reforming Processes for Fuel Cell Applications

Energies ◽  
2021 ◽  
Vol 14 (24) ◽  
pp. 8442
Author(s):  
Konstantinos Kappis ◽  
Joan Papavasiliou ◽  
George Avgouropoulos
Keyword(s):  
Fuel Cell ◽  
Hydrogen Production ◽  
Steam Reforming ◽  
Energy Production ◽  
Clean Energy ◽  
High Concentration ◽  
Promoting Effect ◽  
Methanol Reforming ◽  
Catalytic Systems ◽  
Steam Reforming Of Methanol

Hydrogen production through methanol reforming processes has been stimulated over the years due to increasing interest in fuel cell technology and clean energy production. Among different types of methanol reforming, the steam reforming of methanol has attracted great interest as reformate gas stream where high concentration of hydrogen is produced with a negligible amount of carbon monoxide. In this review, recent progress of the main reforming processes of methanol towards hydrogen production is summarized. Different catalytic systems are reviewed for the steam reforming of methanol: mainly copper- and group 8-10-based catalysts, highlighting the catalytic key properties, while the promoting effect of the latter group in copper activity and selectivity is also discussed. The effect of different preparation methods, different promoters/stabilizers, and the formation mechanism is analyzed. Moreover, the integration of methanol steam reforming process and the high temperature–polymer electrolyte membrane fuel cells (HT-PEMFCs) for the development of clean energy production is discussed.

Numerical Simulation of Steam Reforming of Methanol in Micro-Channel Reactor

2005 ◽  
Author(s):  
Wenzhi Cui ◽  
Longjian Li ◽  
Tien-Chien Jen ◽  
Qinghua Chen ◽  
Quan Liao
Keyword(s):  
Numerical Simulation ◽  
Steam Reforming ◽  
Hydrogen Generation ◽  
Volume Ratio ◽  
Micro Channel ◽  
Microchannel Reactor ◽  
Fuel Processing ◽  
Reaction Heat ◽  
Steam Reforming Of Methanol ◽  
Hot Air

On-board hydrogen generation from hydrocarbon fuels, such as methanol, natural gas, gasoline and diesel, etc., will be technically feasible in the near future for fuel cell powered vehicles. Among all the fuel processing methods, steam reforming is considered as the most widely used method of hydrogen reforming for the lower reactive temperature, pressure and higher hydrogen ratio in reformate. A laminate micro-channel catalytic reactor was designed for the purpose of hydrogen generation from hydrocarbons. The depth of the reaction channel is 0.5 mm, and the length and width are 50 mm and 40 mm, respectively. The same geometry is designed for the heating channels. A metal sheet is placed between reacting and heating channels to separate them. Piling up alternately the two channels is to buildup the laminate microchannel reactor. Numerical simulation has been conducted in one reactive unit, i.e., one reacting channel and one heating channel. The reactant is the solution of methanol and water mixing with a certain ratio. And the reaction heat is provided by hot air flow with a temperature of 600K. A 2D steady model of the reforming reactive processes was developed and solved numerically. The ratio of water and methanol is set to be at 1.3. The conversion rate of methanol was nearly 100% at the outlet of reactor, while the volume ratio of hydrogen is 51.4% with the selectivity of CO2 reaches 49.2%. Detail results showed that the 50 mm long reacting channel could be divided into four different regimes along with the reacting course. In the first regime (0-5mm), methanol in the reactants is almost completely converted and CO is mainly generated in the third one (15-20mm), while reactions in the other two regimes are indiscoverable. The reasons leading to such phenomena are clarified in this paper.

Production of hydrogen by steam reforming of methanol over Cu/CeO2 catalysts derived from Ce1−Cu O2− precursors

2001 ◽  
Vol 2 (6-7) ◽  
pp. 195-200 ◽  
Author(s):  
Yanyong Liu ◽  
Takashi Hayakawa ◽  
Kunio Suzuki ◽  
Satoshi Hamakawa
Keyword(s):  
Steam Reforming ◽  
Steam Reforming Of Methanol ◽  
Production Of Hydrogen
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