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trans-Carbonylchloridobis[tris(4-chlorophenyl) phosphane]rhodium(I) acetone monosolvate

- Burgoyne, Andrew R., Meijboom, Reinout, Muller, Alfred, Omondi, Bernard O.

Authors: Burgoyne, Andrew R. , Meijboom, Reinout , Muller, Alfred , Omondi, Bernard O.
Date: 2010
Subjects: X-ray crystallography , Crystallography , Vaska complexes
Type: Article
Identifier: http://ujcontent.uj.ac.za8080/10210/389598 , uj:5932 , ISSN 1600-5368 , http://hdl.handle.net/10210/8124
Description: Please refer to full text to view abstract
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Bis(dicyclohexylphenylphosphine)- silver(I) nitrate

- Burgoyne, Andrew R., Meijboom, Reinout, Muller, Alfred, Omondi, Bernard

Authors: Burgoyne, Andrew R. , Meijboom, Reinout , Muller, Alfred , Omondi, Bernard
Date: 2010
Subjects: X-ray crystallography , Crystallography , Silver(I) salts , Phosphine complexes
Type: Article
Identifier: uj:5931 , ISSN 1600-5368 , http://hdl.handle.net/10210/8123
Description: Please refer to full text to view abstract
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1,4-Bis[(2-pyridylethyl)iminomethyl]- benzene

- Chiririwa, Haleden, Moss, John R., Su, Hong, Hendricks, Denver, Meijboom, Reinout

Authors: Chiririwa, Haleden , Moss, John R. , Su, Hong , Hendricks, Denver , Meijboom, Reinout
Date: 2011
Subjects: X-ray crystallography , Crystallography , Tetradentate ligands
Type: Article
Identifier: uj:5872 , ISSN 1600-5368 , http://hdl.handle.net/10210/7970
Description: Please refer to full text to view abstract
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Bis(acetonitrile-kN)dichlorido(h⁴-cycloocta- 1,5-diene)ruthenium(II) acetonitrile monosolvate

- Chiririwa, Haleden, Meijboom, Reinout, Owalude, Samson O., Eke, Uche B., Arderne, Charmaine

Authors: Chiririwa, Haleden , Meijboom, Reinout , Owalude, Samson O. , Eke, Uche B. , Arderne, Charmaine
Date: 2011
Subjects: Ruthenium , Ligands , Crystallography
Type: Article
Identifier: uj:5881 , ISSN 1600-5368 , http://hdl.handle.net/10210/7997
Description: Please refer to full text to view abstract
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Fischer-Tropsch synthesis over unpromoted Co/ɣ-Al2O3 catalyst: effect of activation with CO compared to H2 on catalyst performance

- Khangale, Phathutshedzo R, Meijboom, Reinout, Jalama, Kalala

Authors: Khangale, Phathutshedzo R , Meijboom, Reinout , Jalama, Kalala
Date: 2019
Subjects: Co/Al2O3 catalyst , Fischer-Tropsch , Activation with CO
Language: English
Type: Article
Identifier: http://hdl.handle.net/10210/405197 , uj:34015 , Citation: Khangale, P.R., 2019 : Fischer-Tropsch synthesis over unpromoted Co/ɣ-Al2O3 catalyst: effect of activation with CO compared to H2 on catalyst performance.
Description: Abstract : The effect of activating Co/Al2O3 catalyst by diluted CO or H2 on catalyst performance for Fischer-Tropsch reaction was investigated. The catalyst was prepared by incipient wetness impregnation of the support and characterized using BET N2 physisorption, SEM and XRD analyses. The reduction behavior of the catalyst in presence of CO and H2 individually was evaluated using TPR analyses. The data reveal that CO activates Co/Al2O3 catalyst at a lower temperature than H2 and produces a catalyst with higher rate for liquid product formation. It also leads to higher methane selectivity probably due to some cobalt carbide formation.
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Fischer-Tropsch Synthesis over Unpromoted Co/ɣ-Al2O3 Catalyst: Effect of Activation with CO Compared to H2 on Catalyst Performance

- Khangale, Phathutshedzo R., Meijboom, Reinout, Jalama, Kalala

Authors: Khangale, Phathutshedzo R. , Meijboom, Reinout , Jalama, Kalala
Date: 2019
Subjects: Co/Al2O3 catalyst , Fischer-Tropsch , Activation with CO.
Language: English
Type: Article
Identifier: http://hdl.handle.net/10210/290088 , uj:31486 , Citation: Khangale, P.R., Meijboom, R. & Jalama, K. 2019. Fischer-Tropsch Synthesis over Unpromoted Co/ɣ-Al2O3 Catalyst: Effect of Activation with CO Compared to H2 on Catalyst Performance.
Description: Abstract: The effect of activating Co/Al2O3 catalyst by diluted CO or H2 on catalyst performance for FischerTropsch reaction was investigated. The catalyst was prepared by incipient wetness impregnation of the support and characterized using BET N2 physisorption, SEM, and XRD analyses. The reduction behavior of the catalyst in presence of CO and H2 individually was evaluated using TPR analyses. The data reveal that CO activates Co/Al2O3 catalyst at a lower temperature than H2 and produces a catalyst with higher rate for liquid product formation. It also leads to higher methane selectivity probably due to some cobalt carbide formation.
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CO2 hydrogenation to liquid hydrocarbons via modified Fi scher Tropsch over alumina supported cobalt catalyst s : effect of operating temperature, pressure and potassium loading

- Khangale, Phathutshedzo R., Meijboom, Reinout, Jalama, Kalala

Authors: Khangale, Phathutshedzo R. , Meijboom, Reinout , Jalama, Kalala
Date: 2020
Subjects: CO2 hydrogenation; , Potassium , Temperature
Language: English
Type: Article
Identifier: http://hdl.handle.net/10210/435807 , uj:37781 , Citation: Khangale, P.R., Meijboom, R. & Jalama, K. 2020. CO2 hydrogenation to liquid hydrocarbons via modified Fi scher Tropsch over alumina supported cobalt catalyst s : effect of operating temperature, pressure and potassium loading.
Description: Abstract: The effect of promoting 15%Co/Al2O3 catalyst with potassium on CO2 hydrogenation to longer-chain hydrocarbons was investigated. The catalysts used in this study were synthesized using an incipient wetness impregnation of the support with nitrate solutions. All catalysts were supported on γ-alumina and promoted with potassium (0 – 8%). The synthesized catalysts were characterized by XRD, BET, XPS, TPR and CO2-TPD analyses. The catalysts were evaluated for CO2 hydrogenation using a fixed-bed tube reactor. The CO2 conversion was found to increase with both the reaction temperature and pressure. The TPR data revealed that potassium limited the reduction of the catalyst, decreased the selectivity to methane and increased the selectivity to C2+ hydrocarbons. The maximum C2+ yield of 10.2%, with CO2 conversion of 42.3%, was obtained when 6 wt.% of potassium was added to the catalyst. It is believed that during the CO2 hydrogenation process over the catalysts that were promoted with potassium, CO2 is first converted to CO via reverse–water–gas–shift reaction, followed by subsequent hydrogenation of CO to hydrocarbons.
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Catalyst deactivation rate during hydrogenation of CO2 to longer chained hydrocarbons over 6 wt.% potassium-promoted Co/Al2O3 catalyst

- Khangale, Phathutshedzo R., Meijboom, Reinout, Jalama, Kalala

Authors: Khangale, Phathutshedzo R. , Meijboom, Reinout , Jalama, Kalala
Date: 2020
Subjects: Co/Al2O3 catalyst , Potassium , CO2 hydrogenation
Language: English
Type: Article
Identifier: http://hdl.handle.net/10210/470033 , uj:42209 , Citation: Khangale, P.R., Meijboom, R. & Jalama, K. 2020. Catalyst deactivation rate during hydrogenation of CO2 to longer chained hydrocarbons over 6 wt.% potassium-promoted Co/Al2O3 catalyst.
Description: Abstract: Please refer to full text to view abstract.
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Effect of space velocity on alumina supported cobalt catalyst performance for fischer-tropsch reaction

- Khangale, Rodney P., Meijboom, Reinout, Jalama, Kalala

Authors: Khangale, Rodney P. , Meijboom, Reinout , Jalama, Kalala
Date: 2016
Subjects: Co/Al2O3 catalyst , Fischer-Tropsch , Space velocity
Language: English
Type: Conference proceedings
Identifier: http://hdl.handle.net/10210/214368 , uj:21272 , Citation: Khangale, R.P., Meijboom, R & Jalama, K. 2016. Effect of space velocity on alumina supported cobalt catalyst performance for fischer-tropsch reaction.
Description: Abstract: Co/ɣ-Al2O3 catalyst was prepared by incipient wetness impregnation of the ɣ-Al2O3 support using an aqueous solution of cobalt nitrate. The catalyst was characterized by XRD, BET and TPR. It was evaluated in a fixed-bed reactor to determine the effect of space velocity on the CO conversion, CO conversion rate, CH4 selectivity and C5+ selectivity during Fischer-Tropsch reaction. CO conversion decreased while the CO conversion rate linearly increased with increasing the space velocity. The CH4 selectivity was not significantly affected by the space velocity as it fluctuated between 5 and 6%.
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