Promoting effect of Ce on a Cu–Co–Al catalyst for the hydrogenolysis of glycerol to 1,2-propanediol

2016 ◽  
Vol 6 (14) ◽  
pp. 5656-5667 ◽  
Author(s):  
Fufeng Cai ◽  
Guomin Xiao
Keyword(s):  
Catalytic Performance ◽  
Promoting Effect

In this work, the Ce-promoted Cu–Co–Al catalyst exhibited high catalytic performance and stability (100 h) for the hydrogenolysis of glycerol to 1,2-propanediol.

Aqueous hydrogenolysis of glycerol over Ni–Ce/AC catalyst: Promoting effect of Ce on catalytic performance

2010 ◽  
Vol 383 (1-2) ◽  
pp. 73-78 ◽  
Author(s):  
Weiqiang Yu ◽  
Jing Zhao ◽  
Hong Ma ◽  
Hong Miao ◽  
Qi Song ◽  
...  
Keyword(s):  
Catalytic Performance ◽  
Promoting Effect

scholarly journals Influence of Co2 on the Catalytic Performance Of La2O3/CeO2 and CaO/CeO2 Catalysts in the Oxidative Coupling of Methane

2013 ◽  
Vol 15 (1) ◽  
pp. 22-26 ◽  
Author(s):  
Barbara Litawa ◽  
Piotr Michorczyk ◽  
Jan Ogonowski
Keyword(s):  
Oxidative Coupling ◽  
Methane Conversion ◽  
Catalytic Properties ◽  
Catalytic Performance ◽  
Negative Influence ◽  
Oxidative Coupling Of Methane ◽  
Oxygen Mixture ◽  
Impregnation Method ◽  
Promoting Effect ◽  
Conversion Of Methane

In this work the La2O3/CeO2 (33 mol % of La) and CaO/CeO2 (33 mol % of Ca) catalysts were prepared by the impregnation method and characterized by XRD and CO2-TPD. The catalytic properties of the catalysts were tested in the OCM process at 1073 K using the methane/oxygen mixture of the mole ratio 3.7 or 2.5 additionally containing CO2 and helium balance. It was found that in the presence of both catalysts an addition of CO2 enhances the selectivity to the ethylene and ethane and it does not have any negative influence on methane conversion. In the case of the CaO/CeO2 catalyst the promoting effect of CO2 was the highest. When the partial pressure of CO2 equals to 39 kPa the increase in selectivity from 36 to 41% was noted while the conversion of methane equal to 19.4-19.7 %.

scholarly journals Catalytic Combustion of Dimethyl Disulfide on Bimetallic Supported Catalysts Prepared by the Wet-Impregnation Method

2019 ◽  
Author(s):  
Junan Gao ◽  
Song Gao ◽  
Jun Wei ◽  
Hong Zhao ◽  
Jie Zhang
Keyword(s):  
Synergistic Effect ◽  
Catalytic Combustion ◽  
Supported Catalysts ◽  
Dimethyl Disulfide ◽  
Catalytic Performance ◽  
Sulfur Poisoning ◽  
Impregnation Method ◽  
Promoting Effect ◽  
Wet Impregnation ◽  
Wet Impregnation Method

In this paper, the catalytic combustion of DMDS (dimethyl disulfide, CH3SSCH3) over bimetallic supported catalysts were investigated. It was confirmed that Cu/γ-Al2O3-CeO2 showed best catalytic performance among the five single-metal catalysts. Furthermore, six different metals were separately added into Cu/γ-Al2O3-CeO2 to investigate the promoting effect. The experiments revealed Pt as the most effective promoter and the the best catalytic performance was achieved as the adding amount of 0.3 wt%. The characterization results indicated that high activity and resistance to sulfur poisoning of Cu-Pt/γ-Al2O3-CeO2 could be attributed to the synergistic effect between Cu and Pt.

scholarly journals Promoting Effect of Admixed CexZr1-xO2with Cu-ZnO-Al2O3Methanol Synthesis Catalyst on Catalytic Performance: Influence of Ce/Zr Ratio

2010 ◽  
Vol 31 (2) ◽  
pp. 470-472 ◽  
Author(s):  
Hyo-Sik Kim ◽  
Jong-Wook Bae ◽  
Suk-Hwan Kang ◽  
Kyoung-Su Ha ◽  
Ki-Won Jun ◽  
...  
Keyword(s):  
Catalytic Performance ◽  
Promoting Effect

Promoting effect of an aluminum emulsion on catalytic performance of Cu-based catalysts for methanol synthesis from syngas

2010 ◽  
Vol 91 (7) ◽  
pp. 723-728 ◽  
Author(s):  
Lili Wang ◽  
Lingmei Yang ◽  
Yuanhua Zhang ◽  
Wen Ding ◽  
Shiping Chen ◽  
...  
Keyword(s):  
Methanol Synthesis ◽  
Catalytic Performance ◽  
Promoting Effect

scholarly journals Catalytic Combustion of Dimethyl Disulfide on Bimetallic Supported Catalysts Prepared by the Wet-Impregnation Method

Catalysts ◽  
2019 ◽  
Vol 9 (12) ◽  
pp. 994 ◽  
Author(s):  
Junan Gao ◽  
Song Gao ◽  
Jun Wei ◽  
Hong Zhao ◽  
Jie Zhang
Keyword(s):  
Synergistic Effect ◽  
Catalytic Combustion ◽  
Supported Catalysts ◽  
Dimethyl Disulfide ◽  
Catalytic Performance ◽  
Sulfur Poisoning ◽  
Impregnation Method ◽  
Promoting Effect ◽  
Wet Impregnation ◽  
Wet Impregnation Method

In this paper, the catalytic combustion of DMDS (dimethyl disulfide, CH3SSCH3) over bimetallic supported catalysts were investigated. It was confirmed that Cu/γ-Al2O3-CeO2 showed best catalytic performance among the five single-metal catalysts. Furthermore, six different metals were separately added into Cu/γ-Al2O3-CeO2 to investigate the promoting effect. The experiments revealed Pt as the most effective promoter and the best catalytic performance was achieved as the adding amount of 0.3 wt%. The characterization results indicated that high activity and resistance to sulfur poisoning of Cu-Pt/γ-Al2O3-CeO2 could be attributed to the synergistic effect between Cu and Pt.

Promoting Effect of Sulfur Addition on the Catalytic Performance of Ni/MgAl2O4 Catalysts for Isobutane Dehydrogenation

ACS Catalysis ◽  
2013 ◽  
Vol 3 (12) ◽  
pp. 2992-3001 ◽  
Author(s):  
Guowei Wang ◽  
Zhe Meng ◽  
Jianwei Liu ◽  
Chunyi Li ◽  
Honghong Shan
Keyword(s):  
Catalytic Performance ◽  
Promoting Effect ◽  
Isobutane Dehydrogenation ◽  
Sulfur Addition

Molten Salt Synthesis of Strontium-Doped Lanthanum Manganite Nanoparticles with Enhanced Catalytic Performance for Toluene Combustion

NANO ◽  
2016 ◽  
Vol 11 (05) ◽  
pp. 1650059 ◽  
Author(s):  
Yingliang Tian ◽  
Wencai Liu ◽  
Yongqiang Lu ◽  
Shibing Sun
Keyword(s):  
Molten Salt ◽  
Catalytic Performance ◽  
Lanthanum Manganite ◽  
Molten Salt Synthesis ◽  
Molar Ratio ◽  
Partial Substitution ◽  
Molten Salt Method ◽  
Promoting Effect ◽  
Manganite Nanoparticles ◽  
One Step

La[Formula: see text]SrxMnO[Formula: see text] (LSMO) and LaMnO[Formula: see text] (LMO) nanoparticle catalysts have been synthesized via a one-step molten salt route. It was found that the partial substitution of lanthanum by strontium had a promoting effect on the catalytic performance for toluene oxidation. Under the condition of toluene [Formula: see text][Formula: see text]ppm, toluene/O2[Formula: see text] and the space [Formula: see text][Formula: see text]mL/(g h), the temperature required for 50% and 90% toluene combustion conversion was 150[Formula: see text]C and 205[Formula: see text]C over LSMO catalyst, respectively. It is concluded that the oxygen vacancy, the molar ratio Mn[Formula: see text]/Mn[Formula: see text] on the surface and the specific surface area contribute to the improved catalytic performance of the LSMO nanoparticle materials via a one-step molten salt method.

Sign in / Sign up

Export Citation Format

Share Document