The Effect of CO Pretreatment on Fe/ADM Catalyst for Higher Alcohols Synthesis from Syngas

2011 ◽  
Vol 347-353 ◽  
pp. 3772-3776
Author(s):  
Hai Cheng Xiao ◽  
Fan Hua Kong ◽  
Gui Zhi Wang ◽  
Si Han Wang ◽  
Gang Wang ◽  
...  
Keyword(s):  
High Activity ◽  
Synthesis Gas ◽  
Iron Carbide ◽  
Catalytic Performance ◽  
Higher Alcohols ◽  
Xps Spectra ◽  
Higher Alcohols Synthesis ◽  
Hydrocarbons Synthesis

The catalyst of FeS modified K2CO3/MoS2 (ADM) (Fe/ADM) were prepared and tested for higher alcohols (C2+OH) synthesis (HAS) from synthesis gas(syngas, mixture of H2 and CO). The effects of CO pretreatment on Fe/ADM catalyst and the catalytic performance for HAS were investigated. The ability for C2+OH formation was enhanced and the hydrocarbon selectivity was lowered after CO pretreatment. The XPS spectra revealed that the iron carbide species appeared and the potassium enriched on the surface of CO pretreated Fe/ADM catalyst, which might be responsible for the high activity of higher alcohols and low hydrocarbons synthesis, respectively.

scholarly journals Ultra-small and highly-dispersed MoP particles for remarkable enhanced catalytic performance in higher alcohols synthesis

2020 ◽  
Vol 137 ◽  
pp. 105945 ◽  
Author(s):  
Bin Kang ◽  
Shuxia Qi ◽  
Xiaoman Wang ◽  
Fenghua Bai ◽  
Na Wang ◽  
...  
Keyword(s):  
Catalytic Performance ◽  
Higher Alcohols ◽  
Higher Alcohols Synthesis ◽  
Highly Dispersed

CuCo alloy nanonets derived from CuCo2O4 spinel oxides for higher alcohols synthesis from syngas

2021 ◽  
Author(s):  
Chao Huang ◽  
Peiyu Ma ◽  
Ruyang Wang ◽  
Wenjie Li ◽  
Jingyan Wang ◽  
...  
Keyword(s):  
Structural Properties ◽  
Catalytic Performance ◽  
Higher Alcohols ◽  
Topological Transformation ◽  
Higher Alcohol ◽  
Higher Alcohols Synthesis ◽  
Spinel Oxides ◽  
Calcination Method

Porous CuCo alloy nanonets were fabricated via structural topological transformation of CuCo2O4 spinel precursors prepared by a facile hydrothermal-calcination method. Their structural properties together with catalytic performance for higher alcohol...

Effect of Operating Conditions for Higher Alcohols Synthesis from Synthesis Gas over Alkali-Modified Co-Rh-Mo Trimetallic Catalyst Supported on Multi-Walled Carbon Nanotubes

2011 ◽  
Vol 9 (1) ◽  
Author(s):  
Venkateswara Rao Surisetty ◽  
Janusz Kozinski ◽  
Ajay K. Dalai
Keyword(s):  
Carbon Nanotubes ◽  
Synthesis Gas ◽  
Fixed Bed ◽  
Operating Conditions ◽  
Fixed Bed Reactor ◽  
Optimum Operating ◽  
Higher Alcohols ◽  
Higher Alcohols Synthesis ◽  
Multi Walled Carbon Nanotubes ◽  
Walled Carbon Nanotubes

The effects of operating conditions on the higher alcohols synthesis reaction from synthesis gas were studied in a single-pass tubular downflow fixed-bed reactor, using sulfided K-promoted trimetallic Co-Rh-Mo catalyst supported on multi-walled carbon nanotubes (MWCNTs). The p CO conversion increased monotonically with increasing reaction temperature (from 275 to 350°C) and pressure (from 800 to 1400 psi), while decreasing monotonically with increasing GHSV (from 2.4 to 4.2 m3 (STP)/(kg of cat./h)). To maximize the ethanol STY and selectivity, the optimum operating conditions were determined as 330°C, 1320 psi, and 3.8 m3 (STP)/kg of cat./h). Maximum ethanol STY and selectivity were obtained using gas with H2 to CO molar ratio around 1.25.

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