Low-temperature and atmospheric pressure plasma for palm biodiesel hydrogenation
Abstract Partially hydrogenated fatty acid methyl ester (H-FAME) is conventionally produced through partial hydrogenation under high pressure and elevated temperature in the presence of a catalyst. Herein, a novel green, catalyst-free, non-thermal and atmospheric pressure dielectric barrier discharg...
| Main Authors: | , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Nature Portfolio
2021-07-01
|
| Series: | Scientific Reports |
| Online Access: | https://doi.org/10.1038/s41598-021-92714-x |
| _version_ | 1818997330634866688 |
|---|---|
| author | Grittima Kongprawes Doonyapong Wongsawaeng Kanokwan Ngaosuwan Worapon Kiatkittipong Suttichai Assabumrungrat |
| author_facet | Grittima Kongprawes Doonyapong Wongsawaeng Kanokwan Ngaosuwan Worapon Kiatkittipong Suttichai Assabumrungrat |
| author_sort | Grittima Kongprawes |
| collection | DOAJ |
| description | Abstract Partially hydrogenated fatty acid methyl ester (H-FAME) is conventionally produced through partial hydrogenation under high pressure and elevated temperature in the presence of a catalyst. Herein, a novel green, catalyst-free, non-thermal and atmospheric pressure dielectric barrier discharge (DBD) plasma was employed instead of a conventional method to hydrogenate palm FAME. H-FAME became more saturated with the conversion of C18:2 and C18:3 of 47.4 and 100%, respectively, at 100 W input power, 1 mm gas-filled gap size and 80% H2 in the mixed gas at room temperature for 5 h, causing a reduction of the iodine value from 50.2 to 43.5. Oxidation stability increased from 12.8 to 20 h while a cloud point changed from 13.5 to 16 °C. Interestingly, DBD plasma hydrogenation resulted in no trans-fatty acid formation which provided a positive effect on the cloud point. This green DBD plasma system showed a superior performance to a conventional catalytic reaction. It is an alternative method that is safe from explosion due to the mild operating condition, as well as being highly environmentally friendly by reducing waste and energy utilization from the regeneration process required for a catalytic process. This novel green plasma hydrogenation technique could also be applied to other liquid-based processes. |
| first_indexed | 2024-12-20T21:43:55Z |
| format | Article |
| id | doaj.art-e0bf24a854f042d486f2fd4de760065e |
| institution | Directory Open Access Journal |
| issn | 2045-2322 |
| language | English |
| last_indexed | 2024-12-20T21:43:55Z |
| publishDate | 2021-07-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Scientific Reports |
| spelling | doaj.art-e0bf24a854f042d486f2fd4de760065e2022-12-21T19:25:43ZengNature PortfolioScientific Reports2045-23222021-07-0111111410.1038/s41598-021-92714-xLow-temperature and atmospheric pressure plasma for palm biodiesel hydrogenationGrittima Kongprawes0Doonyapong Wongsawaeng1Kanokwan Ngaosuwan2Worapon Kiatkittipong3Suttichai Assabumrungrat4Research Unit on Plasma Technology for High-Performance Materials Development, Department of Nuclear Engineering, Faculty of Engineering, Chulalongkorn UniversityResearch Unit on Plasma Technology for High-Performance Materials Development, Department of Nuclear Engineering, Faculty of Engineering, Chulalongkorn UniversityDivision of Chemical Engineering, Faculty of Engineering, Rajamangala University of Technology KrungthepDepartment of Chemical Engineering, Faculty of Engineering and Industrial Technology, Silpakorn UniversityCenter of Excellence in Catalysis and Catalytic Reaction Engineering, Department of Chemical Engineering, Faculty of Engineering, Chulalongkorn UniversityAbstract Partially hydrogenated fatty acid methyl ester (H-FAME) is conventionally produced through partial hydrogenation under high pressure and elevated temperature in the presence of a catalyst. Herein, a novel green, catalyst-free, non-thermal and atmospheric pressure dielectric barrier discharge (DBD) plasma was employed instead of a conventional method to hydrogenate palm FAME. H-FAME became more saturated with the conversion of C18:2 and C18:3 of 47.4 and 100%, respectively, at 100 W input power, 1 mm gas-filled gap size and 80% H2 in the mixed gas at room temperature for 5 h, causing a reduction of the iodine value from 50.2 to 43.5. Oxidation stability increased from 12.8 to 20 h while a cloud point changed from 13.5 to 16 °C. Interestingly, DBD plasma hydrogenation resulted in no trans-fatty acid formation which provided a positive effect on the cloud point. This green DBD plasma system showed a superior performance to a conventional catalytic reaction. It is an alternative method that is safe from explosion due to the mild operating condition, as well as being highly environmentally friendly by reducing waste and energy utilization from the regeneration process required for a catalytic process. This novel green plasma hydrogenation technique could also be applied to other liquid-based processes.https://doi.org/10.1038/s41598-021-92714-x |
| spellingShingle | Grittima Kongprawes Doonyapong Wongsawaeng Kanokwan Ngaosuwan Worapon Kiatkittipong Suttichai Assabumrungrat Low-temperature and atmospheric pressure plasma for palm biodiesel hydrogenation Scientific Reports |
| title | Low-temperature and atmospheric pressure plasma for palm biodiesel hydrogenation |
| title_full | Low-temperature and atmospheric pressure plasma for palm biodiesel hydrogenation |
| title_fullStr | Low-temperature and atmospheric pressure plasma for palm biodiesel hydrogenation |
| title_full_unstemmed | Low-temperature and atmospheric pressure plasma for palm biodiesel hydrogenation |
| title_short | Low-temperature and atmospheric pressure plasma for palm biodiesel hydrogenation |
| title_sort | low temperature and atmospheric pressure plasma for palm biodiesel hydrogenation |
| url | https://doi.org/10.1038/s41598-021-92714-x |
| work_keys_str_mv | AT grittimakongprawes lowtemperatureandatmosphericpressureplasmaforpalmbiodieselhydrogenation AT doonyapongwongsawaeng lowtemperatureandatmosphericpressureplasmaforpalmbiodieselhydrogenation AT kanokwanngaosuwan lowtemperatureandatmosphericpressureplasmaforpalmbiodieselhydrogenation AT woraponkiatkittipong lowtemperatureandatmosphericpressureplasmaforpalmbiodieselhydrogenation AT suttichaiassabumrungrat lowtemperatureandatmosphericpressureplasmaforpalmbiodieselhydrogenation |