Effect of bimetallic Co-Cu/Dolomite catalyst on glycerol conversion to 1,2-propanediol
This present study examines the efficacy of using dolomite (Dol, CaMg(CO3)2)-supported copper (Cu) and cobalt (Co) bimetallic and monometallic catalysts for the hydrogenolysis of glycerol to propylene glycol (PG; 1,2-PDO). The proposed catalysts were generated using the impregnation process before t...
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| Format: | Article |
| Language: | English English |
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UPM Press
2024
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| Online Access: | https://eprints.ums.edu.my/id/eprint/40950/1/ABSTRACT.pdf https://eprints.ums.edu.my/id/eprint/40950/2/FULL%20TEXT.pdf |
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| author | Norsahida Azri Ramli Irmawati Usman Idris Nda-Umar Mohd Izham Saiman Yun Hin Taufiq-Yap Ghassan Abdulkareem-Alsultan |
| author_facet | Norsahida Azri Ramli Irmawati Usman Idris Nda-Umar Mohd Izham Saiman Yun Hin Taufiq-Yap Ghassan Abdulkareem-Alsultan |
| author_sort | Norsahida Azri |
| collection | UMS |
| description | This present study examines the efficacy of using dolomite (Dol, CaMg(CO3)2)-supported copper (Cu) and cobalt (Co) bimetallic and monometallic catalysts for the hydrogenolysis of glycerol to propylene glycol (PG; 1,2-PDO). The proposed catalysts were generated using the impregnation process before they were calcined at 500°C and reduced at 600°C. Advanced analytical techniques namely Brunauer, Emmett, and Teller (BET) method; the Barrett, Joyner, and Halenda (BJH) method; temperature-programmed desorption of ammonia (NH3–TPD), hydrogen-temperature programmed reduction (H2-TPR), X-ray diffraction (XRD) analysis, and scanning electron microscopy (SEM) were then used to characterise the synthesised catalysts, whose performance was then tested in the hydrogenolysis of glycerol. Of all the synthesised catalysts tested in the hydrogenolysis process, the Co-Cu/Dol bimetallic catalyst performed best, with an 80.3% glycerol conversion and 85.9% PG selectivity at a pressure of 4 MPa, a temperature of 200°C, and a reaction time of 10 hours. Its high catalytic performance was attributed to effective interactions between its Co-Cu-Dol species, which resulted in acceptable acidity, good reducibility of metal oxide species at low temperatures, larger surface area (15.3 m2 g-1), large-sized particles, fewer pores (0.032 cm3 g-1), and smaller pore diameter (0.615 nm). |
| first_indexed | 2024-09-24T00:52:38Z |
| format | Article |
| id | ums.eprints-40950 |
| institution | Universiti Malaysia Sabah |
| language | English English |
| last_indexed | 2024-09-24T00:52:38Z |
| publishDate | 2024 |
| publisher | UPM Press |
| record_format | dspace |
| spelling | ums.eprints-409502024-09-02T08:09:18Z https://eprints.ums.edu.my/id/eprint/40950/ Effect of bimetallic Co-Cu/Dolomite catalyst on glycerol conversion to 1,2-propanediol Norsahida Azri Ramli Irmawati Usman Idris Nda-Umar Mohd Izham Saiman Yun Hin Taufiq-Yap Ghassan Abdulkareem-Alsultan TP1-1185 Chemical technology TP315-360 Fuel This present study examines the efficacy of using dolomite (Dol, CaMg(CO3)2)-supported copper (Cu) and cobalt (Co) bimetallic and monometallic catalysts for the hydrogenolysis of glycerol to propylene glycol (PG; 1,2-PDO). The proposed catalysts were generated using the impregnation process before they were calcined at 500°C and reduced at 600°C. Advanced analytical techniques namely Brunauer, Emmett, and Teller (BET) method; the Barrett, Joyner, and Halenda (BJH) method; temperature-programmed desorption of ammonia (NH3–TPD), hydrogen-temperature programmed reduction (H2-TPR), X-ray diffraction (XRD) analysis, and scanning electron microscopy (SEM) were then used to characterise the synthesised catalysts, whose performance was then tested in the hydrogenolysis of glycerol. Of all the synthesised catalysts tested in the hydrogenolysis process, the Co-Cu/Dol bimetallic catalyst performed best, with an 80.3% glycerol conversion and 85.9% PG selectivity at a pressure of 4 MPa, a temperature of 200°C, and a reaction time of 10 hours. Its high catalytic performance was attributed to effective interactions between its Co-Cu-Dol species, which resulted in acceptable acidity, good reducibility of metal oxide species at low temperatures, larger surface area (15.3 m2 g-1), large-sized particles, fewer pores (0.032 cm3 g-1), and smaller pore diameter (0.615 nm). UPM Press 2024 Article NonPeerReviewed text en https://eprints.ums.edu.my/id/eprint/40950/1/ABSTRACT.pdf text en https://eprints.ums.edu.my/id/eprint/40950/2/FULL%20TEXT.pdf Norsahida Azri and Ramli Irmawati and Usman Idris Nda-Umar and Mohd Izham Saiman and Yun Hin Taufiq-Yap and Ghassan Abdulkareem-Alsultan (2024) Effect of bimetallic Co-Cu/Dolomite catalyst on glycerol conversion to 1,2-propanediol. Pertanika Journal Of Science & Technology, 32 (3). pp. 1-19. ISSN 0128-7680 https://doi.org/10.47836/pjst.32.3.09 |
| spellingShingle | TP1-1185 Chemical technology TP315-360 Fuel Norsahida Azri Ramli Irmawati Usman Idris Nda-Umar Mohd Izham Saiman Yun Hin Taufiq-Yap Ghassan Abdulkareem-Alsultan Effect of bimetallic Co-Cu/Dolomite catalyst on glycerol conversion to 1,2-propanediol |
| title | Effect of bimetallic Co-Cu/Dolomite catalyst on glycerol conversion to 1,2-propanediol |
| title_full | Effect of bimetallic Co-Cu/Dolomite catalyst on glycerol conversion to 1,2-propanediol |
| title_fullStr | Effect of bimetallic Co-Cu/Dolomite catalyst on glycerol conversion to 1,2-propanediol |
| title_full_unstemmed | Effect of bimetallic Co-Cu/Dolomite catalyst on glycerol conversion to 1,2-propanediol |
| title_short | Effect of bimetallic Co-Cu/Dolomite catalyst on glycerol conversion to 1,2-propanediol |
| title_sort | effect of bimetallic co cu dolomite catalyst on glycerol conversion to 1 2 propanediol |
| topic | TP1-1185 Chemical technology TP315-360 Fuel |
| url | https://eprints.ums.edu.my/id/eprint/40950/1/ABSTRACT.pdf https://eprints.ums.edu.my/id/eprint/40950/2/FULL%20TEXT.pdf |
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