scholarly journals Investigation of mesoporous NiAl2O4/MOx (M = La, Ce, Ca, Mg)–γ-Al2O3 nanocomposites for dry reforming of methane

RSC Advances ◽  
2017 ◽  
Vol 7 (53) ◽  
pp. 33143-33154 ◽  
Author(s):  
Li Zhang ◽  
Xueguang Wang ◽  
Chenju Chen ◽  
Xiujing Zou ◽  
Xingfu Shang ◽  
...  
Keyword(s):  
Catalytic Performance ◽  
Dry Reforming ◽  
Dry Reforming Of Methane ◽  
Partial Hydrolysis ◽  
One Pot ◽  
Hydrolysis Method ◽  
Excellent Catalytic Performance

Mesoporous NiAl2O4/MOx (M = La, Ce, Ca, Mg)–γ-Al2O3 composites through a one-pot partial hydrolysis method showed excellent catalytic performance for dry reforming of methane.

scholarly journals Performance Analysis of TiO2-Modified Co/MgAl2O4 Catalyst for Dry Reforming of Methane in a Fixed Bed Reactor for Syngas (H2, CO) Production

Energies ◽  
2021 ◽  
Vol 14 (11) ◽  
pp. 3347
Author(s):  
Arslan Mazhar ◽  
Asif Hussain Khoja ◽  
Abul Kalam Azad ◽  
Faisal Mushtaq ◽  
Salman Raza Naqvi ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Fixed Bed ◽  
Catalytic Performance ◽  
Dry Reforming ◽  
Fixed Bed Reactor ◽  
Dry Reforming Of Methane ◽  
Catalyst Stability ◽  
Feed Ratio ◽  
Catalyst Loading ◽  
Impregnation Method

Co/TiO2–MgAl2O4 was investigated in a fixed bed reactor for the dry reforming of methane (DRM) process. Co/TiO2–MgAl2O4 was prepared by modified co-precipitation, followed by the hydrothermal method. The active metal Co was loaded via the wetness impregnation method. The prepared catalyst was characterized by XRD, SEM, TGA, and FTIR. The performance of Co/TiO2–MgAl2O4 for the DRM process was investigated in a reactor with a temperature of 750 °C, a feed ratio (CO2/CH4) of 1, a catalyst loading of 0.5 g, and a feed flow rate of 20 mL min−1. The effect of support interaction with metal and the composite were studied for catalytic activity, the composite showing significantly improved results. Moreover, among the tested Co loadings, 5 wt% Co over the TiO2–MgAl2O4 composite shows the best catalytic performance. The 5%Co/TiO2–MgAl2O4 improved the CH4 and CO2 conversion by up to 70% and 80%, respectively, while the selectivity of H2 and CO improved to 43% and 46.5%, respectively. The achieved H2/CO ratio of 0.9 was due to the excess amount of CO produced because of the higher conversion rate of CO2 and the surface carbon reaction with oxygen species. Furthermore, in a time on stream (TOS) test, the catalyst exhibited 75 h of stability with significant catalytic activity. Catalyst potential lies in catalyst stability and performance results, thus encouraging the further investigation and use of the catalyst for the long-run DRM process.

scholarly journals Novel Nickel- and Magnesium-Modified Cenospheres as Catalysts for Dry Reforming of Methane at Moderate Temperatures

Catalysts ◽  
2019 ◽  
Vol 9 (12) ◽  
pp. 1066 ◽  
Author(s):  
Bogdan Samojeden ◽  
Marta Kamienowska ◽  
Armando Izquierdo Colorado ◽  
Maria Elena Galvez ◽  
Ilona Kolebuk ◽  
...  
Keyword(s):  
Supported Catalysts ◽  
Temperature Programmed Desorption ◽  
Catalytic Performance ◽  
Dry Reforming ◽  
Dry Reforming Of Methane ◽  
Temperature Programmed Reduction ◽  
Fly Ashes ◽  
Coal Fly Ashes ◽  
Temperature Programmed ◽  
Mg Content

Cenospheres from coal fly ashes were used as support in the preparation of Ni–Mg catalysts for dry reforming of methane. These materials were characterized by means of XRD, H2-temperature-programmed reduction (H2-TPR), CO2-temperature-programmed desorption (CO2-TPD), and low-temperature nitrogen sorption techniques. The cenosphere-supported catalysts showed relatively high activity and good stability in the dry reforming of methane (DRM) at 700 °C. The catalytic performance of modified cenospheres was found to depend on both Ni and Mg content. The highest activity at 750 °C and 1 atm was observed for the catalyst containing 30 wt % Mg and 10, 20, and 30 wt % Ni, yielding to CO2 and CH4 conversions of around 95%.

scholarly journals Preparation of Ni-IL/SiO2 and its catalytic performance for one-pot sequential synthesis of 2-propylheptanol from n-valeraldehyde

RSC Advances ◽  
2020 ◽  
Vol 10 (47) ◽  
pp. 28100-28105
Author(s):  
Hualiang An ◽  
Di Wang ◽  
Shuang Miao ◽  
Qiusheng Yang ◽  
Xinqiang Zhao ◽  
...  
Keyword(s):  
Catalytic Performance ◽  
One Pot ◽  
One Pot Synthesis ◽  
The One ◽  
Excellent Catalytic Performance

The prepared Ni-IL/SiO2 catalyst exhibits an excellent catalytic performance in the one-pot synthesis of 2-propylheptanol: the yield of 2-propylheptanol attained 75.4%.

Silica-supported NiO nanocomposites prepared via a sol–gel technique and their excellent catalytic performance for one-pot multicomponent synthesis of benzodiazepine derivatives under microwave irradiation

2017 ◽  
Vol 41 (13) ◽  
pp. 5893-5903 ◽  
Author(s):  
Zeba Nasir ◽  
Abad Ali ◽  
Mohammad Shakir ◽  
Rizwan Wahab ◽  
Shamsuzzaman Shamsuzzaman ◽  
...  
Keyword(s):  
Microwave Irradiation ◽  
Sol Gel ◽  
Catalytic Performance ◽  
Multicomponent Synthesis ◽  
One Pot ◽  
Benzodiazepine Derivatives ◽  
Gel Technique ◽  
The One ◽  
Excellent Catalytic Performance

Heterogeneous and versatile NiO–SiO2 NCs were synthesized by a sol–gel technique and used as a catalyst for the one-pot multicomponent synthesis of benzodiazepines.

Catalytic performance of perovskite-like oxide doped cerium (La2 − Ce CoO4 ± ) as catalysts for dry reforming of methane

2019 ◽  
Vol 27 (2) ◽  
pp. 379-385 ◽  
Author(s):  
Yukun Bai ◽  
Yuqi Wang ◽  
Weijian Yuan ◽  
Wen Sun ◽  
Guoxia Zhang ◽  
...  
Keyword(s):  
Catalytic Performance ◽  
Dry Reforming ◽  
Dry Reforming Of Methane

One-pot synthesis of carbon-coated Fe3O4 nanoparticles with tunable size for production of gasoline fuels

2018 ◽  
Vol 42 (13) ◽  
pp. 10861-10867 ◽  
Author(s):  
Junling Tu ◽  
Jiaojiao Yuan ◽  
Shimin Kang ◽  
Yongjun Xu ◽  
Tiejun Wang
Keyword(s):  
Fe3o4 Nanoparticles ◽  
Direct Synthesis ◽  
Catalytic Performance ◽  
One Pot ◽  
One Pot Synthesis ◽  
Carbon Coated ◽  
Excellent Catalytic Performance

Fe3O4@C nanoparticles with tunable size exhibit excellent catalytic performance in the direct synthesis of gasoline fuels.

scholarly journals Smart Designs of Anti-Coking and Anti-Sintering Ni-Based Catalysts for Dry Reforming of Methane: A Recent Review

Reactions ◽  
2020 ◽  
Vol 1 (2) ◽  
pp. 162-194
Author(s):  
Xingyuan Gao ◽  
Jangam Ashok ◽  
Sibudjing Kawi
Keyword(s):  
Energy Efficiency ◽  
Structural Optimization ◽  
Greenhouse Gases ◽  
Large Scale ◽  
Catalytic Performance ◽  
Dry Reforming ◽  
Dry Reforming Of Methane ◽  
Utilization Rate ◽  
Interfacial Engineering ◽  
Oxygen Defects

Dry reforming of methane (DRM) reaction has drawn much interest due to the reduction of greenhouse gases and production of syngas. Coking and sintering have hindered the large-scale operations of Ni-based catalysts in DRM reactions at high temperatures. Smart designs of Ni-based catalysts are comprehensively summarized in fourth aspects: surface regulation, oxygen defects, interfacial engineering, and structural optimization. In each part, details of the designs and anti-deactivation mechanisms are elucidated, followed by a summary of the main points and the recommended strategies to improve the catalytic performance, energy efficiency, and utilization rate.

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