scholarly journals The Effect of Copper Addition on the Activity and Stability of Iron-Based CO2 Hydrogenation Catalysts

Molecules ◽  
2017 ◽  
Vol 22 (9) ◽  
pp. 1579 ◽  
Author(s):  
Matthew Bradley ◽  
Ramagopal Ananth ◽  
Heather Willauer ◽  
Jeffrey Baldwin ◽  
Dennis Hardy ◽  
...  
Keyword(s):  
Co2 Hydrogenation ◽  
Hydrogenation Catalysts ◽  
Copper Addition ◽  
Iron Based ◽  
Effect Of Copper

K and Mn doped iron-based CO2 hydrogenation catalysts: Detection of KAlH4 as part of the catalyst's active phase

2010 ◽  
Vol 373 (1-2) ◽  
pp. 112-121 ◽  
Author(s):  
Robert W. Dorner ◽  
Dennis R. Hardy ◽  
Frederick W. Williams ◽  
Heather D. Willauer
Keyword(s):  
Active Phase ◽  
Co2 Hydrogenation ◽  
Hydrogenation Catalysts ◽  
Iron Based ◽  
Mn Doped

scholarly journals Evaluation of CO2 Hydrogenation in a Modular Fixed-Bed Reactor Prototype

Catalysts ◽  
2020 ◽  
Vol 10 (9) ◽  
pp. 970
Author(s):  
Heather D. Willauer ◽  
Matthew J. Bradley ◽  
Jeffrey W. Baldwin ◽  
Joseph J. Hartvigsen ◽  
Lyman Frost ◽  
...  
Keyword(s):  
Fixed Bed ◽  
Value Added ◽  
Building Blocks ◽  
Co2 Hydrogenation ◽  
Fixed Bed Reactor ◽  
Naval Research ◽  
Catalyst Characterization ◽  
Hydrogenation Catalysts ◽  
X Ray ◽  
Iron Based

Low-cost iron-based CO2 hydrogenation catalysts have shown promise as a viable route to the production of value-added hydrocarbon building blocks. It is envisioned that these hydrocarbons will be used to augment industrial chemical processes and produce drop-in replacement operational fuel. To this end, the U.S. Naval Research Laboratory (NRL) has been designing, testing, modeling, and evaluating CO2 hydrogenation catalysts in a laboratory-scale fixed-bed environment. To transition from the laboratory to a commercial process, the catalyst viability and performance must be evaluated at scale. The performance of a Macrolite®-supported iron-based catalyst in a commercial-scale fixed-bed modular reactor prototype was evaluated under different reactor feed rates and product recycling conditions. CO2 conversion increased from 26% to as high as 69% by recycling a portion of the product stream and CO selectivity was greatly reduced from 45% to 9% in favor of hydrocarbon production. In addition, the catalyst was successfully regenerated for optimum performance. Catalyst characterization by X-ray diffraction (XRD) and X-ray photoelectron spectroscopy (XPS), along with modeling and kinetic analysis, highlighted the potential challenges and benefits associated with scaling-up catalyst materials and processes for industrial implementation.

CO2 Hydrogenation to Hydrocarbons over Iron-based Catalyst: Effects of Physicochemical Properties of Al2O3 Supports

2014 ◽  
Vol 53 (45) ◽  
pp. 17563-17569 ◽  
Author(s):  
Fanshu Ding ◽  
Anfeng Zhang ◽  
Min Liu ◽  
Yi Zuo ◽  
Keyan Li ◽  
...  
Keyword(s):  
Physicochemical Properties ◽  
Co2 Hydrogenation ◽  
Iron Based

CO2 hydrogenation into CH4 over Ni–Fe catalysts

2018 ◽  
Vol 11 (03) ◽  
pp. 1850057 ◽  
Author(s):  
Reza Meshkini Far ◽  
Olena V. Ischenko ◽  
Alla G. Dyachenko ◽  
Oleksandr Bieda ◽  
Snezhana V. Gaidai ◽  
...  
Keyword(s):  
Low Temperature ◽  
Synergistic Effect ◽  
Atmospheric Pressure ◽  
High Efficiency ◽  
Co2 Hydrogenation ◽  
Hydrogenation Catalysts ◽  
Fe Catalysts ◽  
First Time ◽  
Supported Ni ◽  
Hydrogenation Of Co

Here, we report, for the first time, on the catalytic hydrogenation of CO2 to methane at atmospheric pressure. For the preparation of hydrogenation catalysts based on Ni and Fe metals, a convenient method is developed. According to this method, low-temperature reduction of the co-precipitated Ni and Fe oxides with hydrogen gives the effective and selective bimetallic Ni[Formula: see text]Fe[Formula: see text], Ni[Formula: see text]Fe[Formula: see text] and Ni[Formula: see text]Fe[Formula: see text] catalysts. At the temperature range of 300–400[Formula: see text]C, they exhibit a high efficiency of CH4 production with respect to monometallic Ni and Fe catalysts. The results imply a synergistic effect between Ni and Fe which caused the superior activity of the Ni[Formula: see text]Fe[Formula: see text] catalyst conversing [Formula: see text]% of CO2 into CH4 at 350[Formula: see text]C. To adapt the Ni–Fe catalysts in the industry, the effect of two different carriers on the efficiency of the alumina-supported Ni[Formula: see text]Fe[Formula: see text] catalyst was investigated. It is found that the Ni[Formula: see text]Fe[Formula: see text]/[Formula: see text]-Al2O3 catalyst effectively conversed CO2 giving 100% methane yield already at 275[Formula: see text]C.

scholarly journals CO2 Hydrogenation Catalysts with Deprotonated Picolinamide Ligands

ACS Catalysis ◽  
2017 ◽  
Vol 7 (10) ◽  
pp. 6426-6429 ◽  
Author(s):  
Ryoichi Kanega ◽  
Naoya Onishi ◽  
David J. Szalda ◽  
Mehmed Z. Ertem ◽  
James T. Muckerman ◽  
...  
Keyword(s):  
Co2 Hydrogenation ◽  
Hydrogenation Catalysts

scholarly journals The Effect of Copper Addition on the Mechanical and Wear Properties of Grey Cast Iron

2014 ◽  
Vol 02 (05) ◽  
pp. 470-483 ◽  
Author(s):  
J. O. Agunsoye ◽  
S. A. Bello ◽  
S. B. Hassan ◽  
R. G. Adeyemo ◽  
J. M. Odii
Keyword(s):  
Cast Iron ◽  
Grey Cast Iron ◽  
Wear Properties ◽  
Copper Addition ◽  
Grey Cast ◽  
Effect Of Copper

On the nature of active phases and sites in CO and CO2 hydrogenation catalysts

2018 ◽  
Vol 8 (22) ◽  
pp. 5681-5707 ◽  
Author(s):  
Alberto V. Puga
Keyword(s):  
Co2 Hydrogenation ◽  
Hydrogenation Catalysts ◽  
Co And Co2 Hydrogenation ◽  
Characterisation Techniques

Advanced characterisation techniques are shedding new light on the identification of active COx hydrogenation phases and sites.

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