High-throughput screening of HZSM-5 supported metal-oxides catalysts for the coupling of methane with CO to benzene and naphthalene

Wang, Hua; Liu, Zhongmin; Shen, Jianghan; Liu, Hongchao; Zhang, Jinling

doi:10.1016/j.catcom.2005.02.008

Cited by 11 publications

(2 citation statements)

References 16 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…TPSR results showed the desorption temperature of the products, which indicates the most appropriate reaction temperature [12][13][14]. In this way, a catalyst with low-temperature activity could be easily obtained when the corresponding products showed desorption at low temperatures.…”

Section: Tpsr Resultsmentioning

confidence: 87%

Low Temperature Dehydration of Glycerol to Acrolein in Vapor Phase with Hydrogen as Dilution: From Catalyst Screening via TPSR to Real-Time Reaction in a Fixed-Bed

2019

View full text Add to dashboard Cite

Temperature programmed surface reaction (TPSR) was developed as a method for rapid screening of catalysts. In this study, a series of acid catalysts was screened for the low-temperature dehydration of glycerol to acrolein via TPSR. Results suggested that most catalysts show activity of glycerol conversion to acrolein at a greatly different temperature range. HY, SiO2 supported H4SiW12O40 (STA/SiO2), SO42−/ZrO2, and SO42−/TiO2 were observed to be efficient for the conversion of glycerol into acrolein at 210 °C, which was significantly lower than that generally reported (250–340 °C). Moreover, high selectivity of acrolein was gained at 85% and 86% over SiW/SiO2 and SO42−/TiO2, respectively. A new style catalyst, ZnCl2/SiO2, was also found to be highly selective to acrolein and evaluated in a conventional fixed-bed reactor. Especially, stability tests showed that the catalyst life was up to 300 h with no clear deactivation on ZnCl2/SiO2 with hydrogen as dilution.

show abstract

Section: Tpsr Resultsmentioning

confidence: 87%

Low Temperature Dehydration of Glycerol to Acrolein in Vapor Phase with Hydrogen as Dilution: From Catalyst Screening via TPSR to Real-Time Reaction in a Fixed-Bed

2019

View full text Add to dashboard Cite

show abstract

“…In several works [82][83][84][85] it was shown that the presence of a second metal in addition to molybdenum, can have a substantial effect on the activity, selectivity, and resistance to the coking of Mo/ZSM-5 catalysts. A wide range of metals were studied as promoters: Fe [85][86][87], Co [86,88], Ni [83,89], Cu [88,90], Zn [87,91,92], Ga [93,94], Cr [95], Ag [84,96], Pd [97], Ir [97], V [98], Pt [99], Ru [100], La [101], P [102], etc. The data on nature (Ni, Ti, Zr, W, Ru, La, Ce, platinum group metals, etc.)…”

Section: Dehydroaromatization Of Methanementioning

confidence: 99%

Promoters for Improvement of the Catalyst Performance in Methane Valorization Processes

Исмагилов

Восмериков

Коробицына

et al. 2021

Eurasian Chem. Tech. J.

View full text Add to dashboard Cite

In this work, the introduction of modifying additives in the composition of catalysts is considered as an effective mode of improving functional characteristics of materials for two processes of methane conversion into valuable products – methane dehydroaromatization (DHA of CH4) into benzene and hydrogen and autothermal reforming of methane (ATR of CH4) into synthesis gas. The effect of type and content of promoters on the structural and electronic state of the active component as well as catalyst activity and stability against deactivation is discussed. For DHA of CH4 the operation mode of additives M = Ag, Ni, Fe in the composition of Mo-M/ZSM-5 catalysts was elucidated and correlated with the product yield and coke content. It was shown that when Ag serves as a promoter, the duration of the catalyst stable operation is enhanced due to a decrease in the rate of the coke formation. In the case of Ni and Fe additives, the Ni-Мо and Fe-Mo alloys are formed that retain the catalytic activity for a long time in spite of the carbon accumulation. For ATR of CH4, the influence of M = Pd, Pt, Re, Mo, Sn in the composition of Ni-M catalysts supported on La2O3 or Ce0.5Zr0.5O2/Al2O3 was elucidated. It was demonstrated that for Ni-M/La2O3 catalysts, Pd is a more efficient promoter that improves the reducibility of Ni cations and increases the content of active Nio centers. In the case of Ni-M/Ce0.5Zr0.5O2/Al2O3 samples, Re is considered the best promoter due to the formation of an alloy with anti-coking and anti-sintering properties. The use of catalysts with optimal promoter type and its content provides high efficiency of methane valorization processes.

show abstract

High‐Throughput Experimentation

Rodemerck

Linke

2009

Synthesis of Solid Catalysts

View full text Add to dashboard Cite

High-throughput screening of HZSM-5 supported metal-oxides catalysts for the coupling of methane with CO to benzene and naphthalene

Cited by 11 publications

References 16 publications

Low Temperature Dehydration of Glycerol to Acrolein in Vapor Phase with Hydrogen as Dilution: From Catalyst Screening via TPSR to Real-Time Reaction in a Fixed-Bed

Low Temperature Dehydration of Glycerol to Acrolein in Vapor Phase with Hydrogen as Dilution: From Catalyst Screening via TPSR to Real-Time Reaction in a Fixed-Bed

Promoters for Improvement of the Catalyst Performance in Methane Valorization Processes

High‐Throughput Experimentation

Contact Info

Product

Resources

About