The Demonstration of the Superiority of the Dual Ni-Based Catalytic System for the Adjustment of the H<sub>2</sub>/CO Ratio in Syngas for Green Fuel Technologies
A novel dual Ni-based catalytic process (DCP) to control the H<sub>2</sub>/CO ratio of 2 in the syngas product within one step at temperature <700 °C was created and constructed. With the sequence of the catalysts located in the single reactor, the endothermic combined steam and CO<...
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MDPI AG
2020-09-01
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| Series: | Catalysts |
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| Online Access: | https://www.mdpi.com/2073-4344/10/9/1056 |
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| author | Suntorn Sangsong Tanakorn Ratana Sabaithip Tungkamani Thana Sornchamni Monrudee Phongaksorn Eric Croiset |
| author_facet | Suntorn Sangsong Tanakorn Ratana Sabaithip Tungkamani Thana Sornchamni Monrudee Phongaksorn Eric Croiset |
| author_sort | Suntorn Sangsong |
| collection | DOAJ |
| description | A novel dual Ni-based catalytic process (DCP) to control the H<sub>2</sub>/CO ratio of 2 in the syngas product within one step at temperature <700 °C was created and constructed. With the sequence of the catalysts located in the single reactor, the endothermic combined steam and CO<sub>2</sub> reforming of methane (CSCRM) reaction and the exothermic ultra-high-temperature water–gas shift (UHT-WGS) reaction work continuously. During the process, the H<sub>2</sub>/CO ratio is raised suddenly at UHT-WGS after the syngas is produced from CSCRM, and CSCRM utilizes the heat released from UHT-WGS. Due to these features, DCP is more compact, enhances energy efficiency, and thus decreases the capital cost compared to reformers connecting with shift reactors. To prove this propose, the DCP tests were done in a fixed-bed reactor under various conditions (temperature = 500, 550, and 600 °C; the feed mixture (CH<sub>4</sub>, CO<sub>2</sub>, H<sub>2</sub>O, and N<sub>2</sub>) with H<sub>2</sub>O/(CH<sub>4</sub> + CO<sub>2</sub>) ratio = 0.33, 0.53, and 0.67). According to the highest CH<sub>4</sub> conversion (around 65%) with carbon tolerance, the recommended conditions for producing syngas with the H<sub>2</sub>/CO ratio of 2 as a feedstock of Fischer–Tropsch synthesis include the temperature of 600 °C and the H<sub>2</sub>O/(CH<sub>4</sub> + CO<sub>2</sub>) ratio of 0.53. |
| first_indexed | 2024-03-10T16:21:06Z |
| format | Article |
| id | doaj.art-fbfe7c784d654696864a52f9eb742760 |
| institution | Directory Open Access Journal |
| issn | 2073-4344 |
| language | English |
| last_indexed | 2024-03-10T16:21:06Z |
| publishDate | 2020-09-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Catalysts |
| spelling | doaj.art-fbfe7c784d654696864a52f9eb7427602023-11-20T13:39:44ZengMDPI AGCatalysts2073-43442020-09-01109105610.3390/catal10091056The Demonstration of the Superiority of the Dual Ni-Based Catalytic System for the Adjustment of the H<sub>2</sub>/CO Ratio in Syngas for Green Fuel TechnologiesSuntorn Sangsong0Tanakorn Ratana1Sabaithip Tungkamani2Thana Sornchamni3Monrudee Phongaksorn4Eric Croiset5Department of Industrial Chemistry, Faculty of Applied Science, King Mongkut’s University of Technology North Bangkok, Bangkok 10800, ThailandDepartment of Industrial Chemistry, Faculty of Applied Science, King Mongkut’s University of Technology North Bangkok, Bangkok 10800, ThailandDepartment of Industrial Chemistry, Faculty of Applied Science, King Mongkut’s University of Technology North Bangkok, Bangkok 10800, ThailandInnovation Institute PTT, Sananp Thuep, Wang Noi, Phra Nakhon Si Ayutthaya 13170, ThailandDepartment of Industrial Chemistry, Faculty of Applied Science, King Mongkut’s University of Technology North Bangkok, Bangkok 10800, ThailandDepartment of Chemical Engineering, University of Waterloo, Waterloo, ON N2L 3G1, CanadaA novel dual Ni-based catalytic process (DCP) to control the H<sub>2</sub>/CO ratio of 2 in the syngas product within one step at temperature <700 °C was created and constructed. With the sequence of the catalysts located in the single reactor, the endothermic combined steam and CO<sub>2</sub> reforming of methane (CSCRM) reaction and the exothermic ultra-high-temperature water–gas shift (UHT-WGS) reaction work continuously. During the process, the H<sub>2</sub>/CO ratio is raised suddenly at UHT-WGS after the syngas is produced from CSCRM, and CSCRM utilizes the heat released from UHT-WGS. Due to these features, DCP is more compact, enhances energy efficiency, and thus decreases the capital cost compared to reformers connecting with shift reactors. To prove this propose, the DCP tests were done in a fixed-bed reactor under various conditions (temperature = 500, 550, and 600 °C; the feed mixture (CH<sub>4</sub>, CO<sub>2</sub>, H<sub>2</sub>O, and N<sub>2</sub>) with H<sub>2</sub>O/(CH<sub>4</sub> + CO<sub>2</sub>) ratio = 0.33, 0.53, and 0.67). According to the highest CH<sub>4</sub> conversion (around 65%) with carbon tolerance, the recommended conditions for producing syngas with the H<sub>2</sub>/CO ratio of 2 as a feedstock of Fischer–Tropsch synthesis include the temperature of 600 °C and the H<sub>2</sub>O/(CH<sub>4</sub> + CO<sub>2</sub>) ratio of 0.53.https://www.mdpi.com/2073-4344/10/9/1056dual catalytic processlow temperature syngas productionmethane reformingNi-based catalystsultra-high-temperature water–gas shiftFischer–Tropsch synthesis |
| spellingShingle | Suntorn Sangsong Tanakorn Ratana Sabaithip Tungkamani Thana Sornchamni Monrudee Phongaksorn Eric Croiset The Demonstration of the Superiority of the Dual Ni-Based Catalytic System for the Adjustment of the H<sub>2</sub>/CO Ratio in Syngas for Green Fuel Technologies Catalysts dual catalytic process low temperature syngas production methane reforming Ni-based catalysts ultra-high-temperature water–gas shift Fischer–Tropsch synthesis |
| title | The Demonstration of the Superiority of the Dual Ni-Based Catalytic System for the Adjustment of the H<sub>2</sub>/CO Ratio in Syngas for Green Fuel Technologies |
| title_full | The Demonstration of the Superiority of the Dual Ni-Based Catalytic System for the Adjustment of the H<sub>2</sub>/CO Ratio in Syngas for Green Fuel Technologies |
| title_fullStr | The Demonstration of the Superiority of the Dual Ni-Based Catalytic System for the Adjustment of the H<sub>2</sub>/CO Ratio in Syngas for Green Fuel Technologies |
| title_full_unstemmed | The Demonstration of the Superiority of the Dual Ni-Based Catalytic System for the Adjustment of the H<sub>2</sub>/CO Ratio in Syngas for Green Fuel Technologies |
| title_short | The Demonstration of the Superiority of the Dual Ni-Based Catalytic System for the Adjustment of the H<sub>2</sub>/CO Ratio in Syngas for Green Fuel Technologies |
| title_sort | demonstration of the superiority of the dual ni based catalytic system for the adjustment of the h sub 2 sub co ratio in syngas for green fuel technologies |
| topic | dual catalytic process low temperature syngas production methane reforming Ni-based catalysts ultra-high-temperature water–gas shift Fischer–Tropsch synthesis |
| url | https://www.mdpi.com/2073-4344/10/9/1056 |
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