dc.contributor.author |
Missengue, RNM
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|
dc.contributor.author |
Losch, P
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|
dc.contributor.author |
Sedres, G
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|
dc.contributor.author |
Musyoka, Nicholas M
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dc.contributor.author |
Fatoba, OO
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dc.contributor.author |
Louis, B
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dc.contributor.author |
Pale, P
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dc.contributor.author |
Petrik, LF
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dc.date.accessioned |
2017-11-21T07:28:33Z |
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dc.date.available |
2017-11-21T07:28:33Z |
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dc.date.issued |
2017-01 |
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dc.identifier.citation |
Missengue, R.N.M. et al. 2017. Transformation of South African coal fly ash into ZSM-5 zeolite and its application as an MTO catalyst. Comptes Rendus Chimie, vol. 20(1): 78-86 |
en_US |
dc.identifier.issn |
1631-0748 |
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dc.identifier.uri |
http://www.sciencedirect.com/science/article/pii/S1631074816301278
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|
dc.identifier.uri |
https://doi.org/10.1016/j.crci.2016.04.012
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dc.identifier.uri |
http://hdl.handle.net/10204/9806
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|
dc.description |
Copyright: 2016 Elsevier. Due to copyright restrictions, the attached PDF file only contains the abstract of the full text item. For access to the full text item, please consult the publisher's website. |
en_US |
dc.description.abstract |
This study presents a way of using South African coal fly ash by extracting metals such as Al and Fe with concentrated sulphuric acid, and then using the solid residue as a feedstock for the synthesis of ZSM-5 zeolite. The percentage of aluminium and iron oxides decreased from 28.0 ± 0.2% and 5.0 ± 0.1% in coal fly ash to 24.6 ± 0.1% and 1.6 ± 0.01% in the acid treated coal fly ash respectively. The fly ash-based zeolite ZSM-5 sample synthesised from the solid residue after extraction of Al and Fe, contained 62% of ZSM-5 zeolite pure phase with a number of Brønsted acid site density of 0.61 mmol per gzeolite. By properly treating the as-prepared coal fly ash-based ZSM-5 zeolite, an active and selective methanol-to-olefins acid catalyst could be designed, leading to full methanol conversion during 15 h on stream. The optimised catalyst exhibited a cumulative methanol conversion capacity of 71 g(MeOHconverted)/g(catalyst) and a light olefin productivity of 21 g(C2¼eC4¼)/g(catalyst). |
en_US |
dc.language.iso |
en |
en_US |
dc.publisher |
Elsevier |
en_US |
dc.relation.ispartofseries |
Worklist;19683 |
|
dc.subject |
Fly ash |
en_US |
dc.subject |
Acid leaching |
en_US |
dc.subject |
Metal extraction |
en_US |
dc.subject |
ZSM-5 zeolite |
en_US |
dc.subject |
MTO catalyst |
en_US |
dc.title |
Transformation of South African coal fly ash into ZSM-5 zeolite and its application as an MTO catalyst |
en_US |
dc.type |
Article |
en_US |
dc.identifier.apacitation |
Missengue, R., Losch, P., Sedres, G., Musyoka, N. M., Fatoba, O., Louis, B., ... Petrik, L. (2017). Transformation of South African coal fly ash into ZSM-5 zeolite and its application as an MTO catalyst. http://hdl.handle.net/10204/9806 |
en_ZA |
dc.identifier.chicagocitation |
Missengue, RNM, P Losch, G Sedres, Nicholas M Musyoka, OO Fatoba, B Louis, P Pale, and LF Petrik "Transformation of South African coal fly ash into ZSM-5 zeolite and its application as an MTO catalyst." (2017) http://hdl.handle.net/10204/9806 |
en_ZA |
dc.identifier.vancouvercitation |
Missengue R, Losch P, Sedres G, Musyoka NM, Fatoba O, Louis B, et al. Transformation of South African coal fly ash into ZSM-5 zeolite and its application as an MTO catalyst. 2017; http://hdl.handle.net/10204/9806. |
en_ZA |
dc.identifier.ris |
TY - Article
AU - Missengue, RNM
AU - Losch, P
AU - Sedres, G
AU - Musyoka, Nicholas M
AU - Fatoba, OO
AU - Louis, B
AU - Pale, P
AU - Petrik, LF
AB - This study presents a way of using South African coal fly ash by extracting metals such as Al and Fe with concentrated sulphuric acid, and then using the solid residue as a feedstock for the synthesis of ZSM-5 zeolite. The percentage of aluminium and iron oxides decreased from 28.0 ± 0.2% and 5.0 ± 0.1% in coal fly ash to 24.6 ± 0.1% and 1.6 ± 0.01% in the acid treated coal fly ash respectively. The fly ash-based zeolite ZSM-5 sample synthesised from the solid residue after extraction of Al and Fe, contained 62% of ZSM-5 zeolite pure phase with a number of Brønsted acid site density of 0.61 mmol per gzeolite. By properly treating the as-prepared coal fly ash-based ZSM-5 zeolite, an active and selective methanol-to-olefins acid catalyst could be designed, leading to full methanol conversion during 15 h on stream. The optimised catalyst exhibited a cumulative methanol conversion capacity of 71 g(MeOHconverted)/g(catalyst) and a light olefin productivity of 21 g(C2¼eC4¼)/g(catalyst).
DA - 2017-01
DB - ResearchSpace
DP - CSIR
KW - Fly ash
KW - Acid leaching
KW - Metal extraction
KW - ZSM-5 zeolite
KW - MTO catalyst
LK - https://researchspace.csir.co.za
PY - 2017
SM - 1631-0748
T1 - Transformation of South African coal fly ash into ZSM-5 zeolite and its application as an MTO catalyst
TI - Transformation of South African coal fly ash into ZSM-5 zeolite and its application as an MTO catalyst
UR - http://hdl.handle.net/10204/9806
ER -
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en_ZA |