Thermal dry reforming of methane over La2O3 co-supported Ni/MgAl2O4 catalyst for hydrogen-rich syngas production
The excess emission of greenhouse gases (GHGs) such as CO2 and CH4 is posing an acute threat to the environment, and efficient ways are being sought to utilize GHGs to produce syngas (H2, CO) and lighter hydrocarbons (HCs). In this study, the dry reforming of methane (DRM) has been carried out at 70...
| Main Authors: | , , , , , , |
|---|---|
| Format: | Article |
| Published: |
Springer
2020
|
| Subjects: |
| _version_ | 1796865140391411712 |
|---|---|
| author | Khoja, Asif Hussain Anwar, Mustafa Shakir, Sehar Mehran, Muhammad Taqi Mazhar, Arslan Javed, Adeel Saidina Amin, Nor Aishah |
| author_facet | Khoja, Asif Hussain Anwar, Mustafa Shakir, Sehar Mehran, Muhammad Taqi Mazhar, Arslan Javed, Adeel Saidina Amin, Nor Aishah |
| author_sort | Khoja, Asif Hussain |
| collection | ePrints |
| description | The excess emission of greenhouse gases (GHGs) such as CO2 and CH4 is posing an acute threat to the environment, and efficient ways are being sought to utilize GHGs to produce syngas (H2, CO) and lighter hydrocarbons (HCs). In this study, the dry reforming of methane (DRM) has been carried out at 700 °C using La2O3 co-supported Ni/MgAl2O4 nano-catalyst in a fixed bed thermal reactor. The catalyst is characterized using various techniques such as XRD, FESEM, EDX-mapping, CO2-TPD, H2-TPR and TGA. The modified MgAl2O4 shows the flake type structure after the addition of La2O3. The TPR and TPD analysis shows the highly dispersed metal and strong basic nature of the catalyst consequently enhances the conversion of CO2 and CH4. The highest conversion for CH4 is 87.3% while CO2 conversion is nearly 89.5% in 20 h of operation time. The selectivity of H2 and CO approached 50% making the H2/CO ratio above unity. In the longer time-on-stream (TOS) test, the catalyst shows elevated potential for longer runs showcasing better catalytic activity. The stability of the catalyst is indicated via a proposed reaction mechanism for DRM in operating conditions. Moreover, TGA indicates the lower weight loss of spent catalyst which ascribed the lower formation of carbon during TOS 20 h. |
| first_indexed | 2024-03-05T20:52:26Z |
| format | Article |
| id | utm.eprints-90996 |
| institution | Universiti Teknologi Malaysia - ePrints |
| last_indexed | 2024-03-05T20:52:26Z |
| publishDate | 2020 |
| publisher | Springer |
| record_format | dspace |
| spelling | utm.eprints-909962021-05-31T13:29:05Z http://eprints.utm.my/90996/ Thermal dry reforming of methane over La2O3 co-supported Ni/MgAl2O4 catalyst for hydrogen-rich syngas production Khoja, Asif Hussain Anwar, Mustafa Shakir, Sehar Mehran, Muhammad Taqi Mazhar, Arslan Javed, Adeel Saidina Amin, Nor Aishah TP Chemical technology The excess emission of greenhouse gases (GHGs) such as CO2 and CH4 is posing an acute threat to the environment, and efficient ways are being sought to utilize GHGs to produce syngas (H2, CO) and lighter hydrocarbons (HCs). In this study, the dry reforming of methane (DRM) has been carried out at 700 °C using La2O3 co-supported Ni/MgAl2O4 nano-catalyst in a fixed bed thermal reactor. The catalyst is characterized using various techniques such as XRD, FESEM, EDX-mapping, CO2-TPD, H2-TPR and TGA. The modified MgAl2O4 shows the flake type structure after the addition of La2O3. The TPR and TPD analysis shows the highly dispersed metal and strong basic nature of the catalyst consequently enhances the conversion of CO2 and CH4. The highest conversion for CH4 is 87.3% while CO2 conversion is nearly 89.5% in 20 h of operation time. The selectivity of H2 and CO approached 50% making the H2/CO ratio above unity. In the longer time-on-stream (TOS) test, the catalyst shows elevated potential for longer runs showcasing better catalytic activity. The stability of the catalyst is indicated via a proposed reaction mechanism for DRM in operating conditions. Moreover, TGA indicates the lower weight loss of spent catalyst which ascribed the lower formation of carbon during TOS 20 h. Springer 2020-08 Article PeerReviewed Khoja, Asif Hussain and Anwar, Mustafa and Shakir, Sehar and Mehran, Muhammad Taqi and Mazhar, Arslan and Javed, Adeel and Saidina Amin, Nor Aishah (2020) Thermal dry reforming of methane over La2O3 co-supported Ni/MgAl2O4 catalyst for hydrogen-rich syngas production. Research on Chemical Intermediates, 46 (8). pp. 3817-3833. ISSN 0922-6168 http://dx.doi.org/10.1007/s11164-020-04174-z |
| spellingShingle | TP Chemical technology Khoja, Asif Hussain Anwar, Mustafa Shakir, Sehar Mehran, Muhammad Taqi Mazhar, Arslan Javed, Adeel Saidina Amin, Nor Aishah Thermal dry reforming of methane over La2O3 co-supported Ni/MgAl2O4 catalyst for hydrogen-rich syngas production |
| title | Thermal dry reforming of methane over La2O3 co-supported Ni/MgAl2O4 catalyst for hydrogen-rich syngas production |
| title_full | Thermal dry reforming of methane over La2O3 co-supported Ni/MgAl2O4 catalyst for hydrogen-rich syngas production |
| title_fullStr | Thermal dry reforming of methane over La2O3 co-supported Ni/MgAl2O4 catalyst for hydrogen-rich syngas production |
| title_full_unstemmed | Thermal dry reforming of methane over La2O3 co-supported Ni/MgAl2O4 catalyst for hydrogen-rich syngas production |
| title_short | Thermal dry reforming of methane over La2O3 co-supported Ni/MgAl2O4 catalyst for hydrogen-rich syngas production |
| title_sort | thermal dry reforming of methane over la2o3 co supported ni mgal2o4 catalyst for hydrogen rich syngas production |
| topic | TP Chemical technology |
| work_keys_str_mv | AT khojaasifhussain thermaldryreformingofmethaneoverla2o3cosupportednimgal2o4catalystforhydrogenrichsyngasproduction AT anwarmustafa thermaldryreformingofmethaneoverla2o3cosupportednimgal2o4catalystforhydrogenrichsyngasproduction AT shakirsehar thermaldryreformingofmethaneoverla2o3cosupportednimgal2o4catalystforhydrogenrichsyngasproduction AT mehranmuhammadtaqi thermaldryreformingofmethaneoverla2o3cosupportednimgal2o4catalystforhydrogenrichsyngasproduction AT mazhararslan thermaldryreformingofmethaneoverla2o3cosupportednimgal2o4catalystforhydrogenrichsyngasproduction AT javedadeel thermaldryreformingofmethaneoverla2o3cosupportednimgal2o4catalystforhydrogenrichsyngasproduction AT saidinaaminnoraishah thermaldryreformingofmethaneoverla2o3cosupportednimgal2o4catalystforhydrogenrichsyngasproduction |