Cu–Mg–Zr/SiO2 catalyst for the selective hydrogenation of ethylene carbonate to methanol and ethylene glycol

2018 ◽  
Vol 8 (10) ◽  
pp. 2624-2635 ◽  
Author(s):  
Jingxia Tian ◽  
Wei Chen ◽  
Peng Wu ◽  
Zhirong Zhu ◽  
Xiaohong Li
Keyword(s):  
Ethylene Glycol ◽  
Selective Hydrogenation ◽  
Ethylene Carbonate ◽  
Fixed Bed ◽  
Fixed Bed Reactor ◽  
Precipitation Method ◽  
Metal Loading ◽  
Total Metal ◽  
Hydrogenation Of Ethylene

A Cux–Mgy–Zrz/SiO2 catalyst with a total metal loading of 60 wt% prepared by a deposition–precipitation method was applied for the selective hydrogenation of ethylene carbonate to methanol and ethylene glycol in a fixed-bed reactor.

Continuous synthesis of methanol: heterogeneous hydrogenation of ethylene carbonate over Cu/HMS catalysts in a fixed bed reactor system

2015 ◽  
Vol 51 (72) ◽  
pp. 13776-13778 ◽  
Author(s):  
Xi Chen ◽  
Yuanyuan Cui ◽  
Chao Wen ◽  
Bin Wang ◽  
Wei-Lin Dai
Keyword(s):  
Ethylene Glycol ◽  
Catalytic Hydrogenation ◽  
Ethylene Carbonate ◽  
Fixed Bed ◽  
Fixed Bed Reactor ◽  
Synthetic Process ◽  
System P ◽  
Synthesis Of Methanol ◽  
Heterogeneous Hydrogenation ◽  
Hydrogenation Of Ethylene

Continuous fixed-bed catalytic hydrogenation of ethylene carbonate (EC) to methanol and ethylene glycol (EG), an emerging synthetic process of methanol via indirect conversion of CO2, was successfully performed over Cu/HMS catalysts prepared by the ammonia evaporation (AE) method.

Heterogeneous selective hydrogenation of ethylene carbonate to methanol and ethylene glycol over a copper chromite nanocatalyst

2015 ◽  
Vol 51 (7) ◽  
pp. 1252-1254 ◽  
Author(s):  
Chao Lian ◽  
Fumin Ren ◽  
Yuxi Liu ◽  
Guofeng Zhao ◽  
Yongjun Ji ◽  
...  
Keyword(s):  
Ethylene Glycol ◽  
Selective Hydrogenation ◽  
Industrial Application ◽  
Ethylene Carbonate ◽  
Copper Chromite ◽  
First Time ◽  
Hydrogenation Of Ethylene

Heterogeneous selective hydrogenation of ethylene carbonate to methanol and ethylene glycol, which provides an opportunity for industrial application of CO2 indirect conversion, was achieved for the first time over a copper chromite nanocatalyst.

One-pot synthesized core/shell structured zeolite@copper catalysts for selective hydrogenation of ethylene carbonate to methanol and ethylene glycol

2019 ◽  
Vol 21 (19) ◽  
pp. 5414-5426 ◽  
Author(s):  
Yu Ding ◽  
Jingxia Tian ◽  
Wei Chen ◽  
Yejun Guan ◽  
Hao Xu ◽  
...  
Keyword(s):  
Ethylene Glycol ◽  
Selective Hydrogenation ◽  
Ethylene Carbonate ◽  
Copper Catalysts ◽  
Active Species ◽  
Core Shell ◽  
One Pot ◽  
Hydrothermal Chemistry ◽  
Hydrogenation Of Ethylene

Novel hierarchical core/shell structured S-1@Cu with balanced Cu0 and Cu+ active species was synthesized via base-assisted hydrothermal chemistry and served as a robust catalyst for selective EC hydrogenation to methanol.

The effect of potassium on Cu/Al2O3 catalysts for the hydrogenation of 5-hydroxymethylfurfural to 2,5-bis(hydroxymethyl)furan in a fixed-bed reactor

2018 ◽  
Vol 8 (23) ◽  
pp. 6091-6099 ◽  
Author(s):  
Danxin Hu ◽  
Hualei Hu ◽  
Hao Zhou ◽  
Guozheng Li ◽  
Chunlin Chen ◽  
...  
Keyword(s):  
Selective Hydrogenation ◽  
Fixed Bed ◽  
Fixed Bed Reactor ◽  
Highly Efficient

The highly efficient selective hydrogenation of 5-hydroxymethylfurfural (HMF) to 2,5-bis(hydroxymethyl)furan (BHMF) was achieved in a fixed-bed reactor by using inexpensive potassium-doped Cu/Al2O3 catalysts.

An efficient Cu-based catalyst for the hydrogenation of ethylene carbonate to ethylene glycol and methanol

2019 ◽  
Vol 9 (23) ◽  
pp. 6749-6759 ◽  
Author(s):  
Wei Chen ◽  
Tongyang Song ◽  
Jingxia Tian ◽  
Peng Wu ◽  
Xiaohong Li
Keyword(s):  
Ethylene Glycol ◽  
Ethylene Carbonate ◽  
Catalytic Performance ◽  
Evaporation Method ◽  
Hydrogenation Of Ethylene

The Cu/SiO2 catalyst prepared by the ammonia-evaporation method and further modified with glucose showed greatly enhanced catalytic performance and stability.

Effect of Catalyst Synthesis Parameters on the Performance of CO2 Hydrogenation to Methanol over SBA-15 Supported Cu/ZnO-Based Catalysts

2020 ◽  
Vol 400 ◽  
pp. 159-169
Author(s):  
Sara F.H. Tasfy ◽  
Noor Asmawati Mohd Zabidi ◽  
Maizatul Shima Shaharun ◽  
Duvvria Subbarao
Keyword(s):  
Surface Area ◽  
Fixed Bed ◽  
Fixed Bed Reactor ◽  
Bet Surface Area ◽  
Methanol Production ◽  
Synthesis Conditions ◽  
Metal Loading ◽  
Synthesis Parameters ◽  
Metal Support Interaction ◽  
Active Metal

Bimetallic Cu-ZnO-based catalyst were systematically prepared via impregnation technique under controlled synthesis conditions of active metal loading, ratio of active metal Cu:Zn and synthesis pH. The effect of the synthesis condition on the performance of the Cu-ZnO supported catalysts with respect to the hydrogenation of CO2 to methanol in micro-activity fixed-bed reactor at 250°C, 2.25 MPa, and 75% H2/25%CO2 ratio. The synthesized catalysts were characterized by transmission electron microscopy (TEM) and temperature programmed desorption, reduction, oxidation and pulse chemisorption (TPDRO) and the surface area determination was also performed. The results demonstrate that the catalytic structure, activity, and methanol selectivity was strongly affected by the synthesis parameters. Increasing of synthesis pH from 1 to 7 shows better metal particles distribution, Cu desperation of 29%, higher BET surface area as well as Cu surface area, while further increasing on pH revealed on particles agglomeration and weak metal-support interaction. In addition, increasing of the active metal loading from 5 to 15 % resulted in dramatic increase in the conversion of CO2 and methanol production while further increase caused lower catalytic performance. Moreover, catalyst with total loading of 15%, Cu:Zn ratio of 70:30 synthesized at pH of 7 exhibit higher catalytic activity of 14%, methanol selectivity of 92%, and TOF of 1.24×103 s-1 compared with other catalyst prepared under various conditions

scholarly journals Synthesis of ethylene carbonate from cyclocondensation of ethylene glycol and urea over ZnO•Cr2O3 catalyst system controlled by co-precipitation method

2012 ◽  
Vol 3 (2) ◽  
pp. 235-240 ◽  
Author(s):  
Sheenu Bhadauria ◽  
Samidha Saxena ◽  
Rajendra Prasad ◽  
Prabhakar Sharma ◽  
Rajendra Prasad ◽  
...  
Keyword(s):  
Ethylene Glycol ◽  
Ethylene Carbonate ◽  
Catalyst System ◽  
Precipitation Method ◽  
Co Precipitation

STUDY ON NANO COPPER-BASED CATALYSTS FOR THE HYDROGENATION OF METHYL 3-HYDROXYPROPIONATE TO 1, 3-PROPANEDIOL

2009 ◽  
Vol 16 (03) ◽  
pp. 343-349 ◽  
Author(s):  
YUZHOU YING ◽  
KANKA FENG ◽  
ZHIGUO LV ◽  
ZHENMEI GUO ◽  
JINSHENG GAO
Keyword(s):  
Fixed Bed ◽  
Side Reaction ◽  
Catalytic Performance ◽  
Fixed Bed Reactor ◽  
Precipitation Method ◽  
Active Components ◽  
Analysis Technique ◽  
Co Precipitation ◽  
Nano Catalysts ◽  
Adsorption Desorption

Nano copper-based catalysts were prepared by co-precipitation method and the performance of catalytic hydrogenation for methyl 3-hydroxypropionate (MHP) to 1, 3-propanediol (1, 3-PDO) on the nano catalysts were studied under a high-pressure microcontinuum fixed-bed reactor. The effects of structure, texture, and composition of the catalysts on the catalytic performance were investigated by characterizing the catalysts with XRD, TG–DTG, SEM, and N 2 adsorption/desorption analysis technique. The results showed that addition of promoters enhanced the activity and selectivity of copper-based catalysts, which promoted the dispersion of the active components effectively and stabilized the active center of the catalysts. Especially, the copper-based catalyst of loaded P could restrain side-reaction effectively and improve selectivity obviously, the conversion of MHP and the selectivity of 1, 3-PDO could be 91.30% and reach 90.15%, respectively.

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