Fly-ash derived Na-P1, natural zeolite tuffs and diatomite in motor oil retention
Aluminosilicate materials of various grain sizes, i.e., Kimolos, Samos and Sorano zeolite tuffs, Samos diatomite and synthetic zeolite prepared from Meliti fly ash via alkaline hydrothermal treatment, were tested as new sorbents for oil leakage remediation. Two lubricant oils of different viscosity,...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2022-06-01
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| Series: | Cleaner Materials |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2772397622000235 |
| _version_ | 1828793409051033600 |
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| author | Maria Roulia Konstantina Koukouza Michael Stamatakis Charalampos Vasilatos |
| author_facet | Maria Roulia Konstantina Koukouza Michael Stamatakis Charalampos Vasilatos |
| author_sort | Maria Roulia |
| collection | DOAJ |
| description | Aluminosilicate materials of various grain sizes, i.e., Kimolos, Samos and Sorano zeolite tuffs, Samos diatomite and synthetic zeolite prepared from Meliti fly ash via alkaline hydrothermal treatment, were tested as new sorbents for oil leakage remediation. Two lubricant oils of different viscosity, i.e., SHELL HELIX HX5 20 W-50 and ULVAC SMR-100 were selected as potential adsorbates. All sorbents employed demonstrated exceptional oil retention capacity values exceeding 100% (w/w); specifically, Kimolos and Sorano zeolites as well as thermally treated Samos diatomite proved best reaching 160% (w/w) oil sorption. Mordenite and phillipsite were mostly detected in Kimolos and Italian zeolite tuffs, respectively. Na-P1 zeolite, produced for the first time from Meliti fly ash without pretreatment via a low-temperature hydrothermal procedure, was characterized by XRD and SEM. The zeolitization process, leading to Na-P1 as the sole synthesis product, was carried out without the use of additives. The synthetic Na-P1 zeolite displayed significant sorption capacity, retaining 125 and 105% (w/w) of the viscous and less viscous oils tested, respectively. Thus, valorization of all aluminosilicate materials employed was achieved. Both porosity measurements and SEM micrographs demonstrated that the highest lubricant oil retention values were reached by macroporous adsorbents having open structure and large surface area, suitable for overcoming the fluid’s resistance to flow and avoiding pore-blocking effects. |
| first_indexed | 2024-12-12T03:27:06Z |
| format | Article |
| id | doaj.art-f01e415f0a2d4051a1994994e3ed04c2 |
| institution | Directory Open Access Journal |
| issn | 2772-3976 |
| language | English |
| last_indexed | 2024-12-12T03:27:06Z |
| publishDate | 2022-06-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Cleaner Materials |
| spelling | doaj.art-f01e415f0a2d4051a1994994e3ed04c22022-12-22T00:40:01ZengElsevierCleaner Materials2772-39762022-06-014100063Fly-ash derived Na-P1, natural zeolite tuffs and diatomite in motor oil retentionMaria Roulia0Konstantina Koukouza1Michael Stamatakis2Charalampos Vasilatos3Inorganic Chemistry Laboratory, Department of Chemistry, National and Kapodistrian University of Athens, Panepistimiopolis 157 71, Athens, GreeceDepartment of Geology and Geoenvironment, National and Kapodistrian University of Athens, Panepistimiopolis 157 84 Athens, Greece; Sustainable Materials Processing and Recycling (SeMPeR), KU Leuven (Arenberg) Kasteelpark Arenberg 44 - Box 2450, 3001 Leuven, BelgiumDepartment of Geology and Geoenvironment, National and Kapodistrian University of Athens, Panepistimiopolis 157 84 Athens, GreeceDepartment of Geology and Geoenvironment, National and Kapodistrian University of Athens, Panepistimiopolis 157 84 Athens, Greece; Corresponding author.Aluminosilicate materials of various grain sizes, i.e., Kimolos, Samos and Sorano zeolite tuffs, Samos diatomite and synthetic zeolite prepared from Meliti fly ash via alkaline hydrothermal treatment, were tested as new sorbents for oil leakage remediation. Two lubricant oils of different viscosity, i.e., SHELL HELIX HX5 20 W-50 and ULVAC SMR-100 were selected as potential adsorbates. All sorbents employed demonstrated exceptional oil retention capacity values exceeding 100% (w/w); specifically, Kimolos and Sorano zeolites as well as thermally treated Samos diatomite proved best reaching 160% (w/w) oil sorption. Mordenite and phillipsite were mostly detected in Kimolos and Italian zeolite tuffs, respectively. Na-P1 zeolite, produced for the first time from Meliti fly ash without pretreatment via a low-temperature hydrothermal procedure, was characterized by XRD and SEM. The zeolitization process, leading to Na-P1 as the sole synthesis product, was carried out without the use of additives. The synthetic Na-P1 zeolite displayed significant sorption capacity, retaining 125 and 105% (w/w) of the viscous and less viscous oils tested, respectively. Thus, valorization of all aluminosilicate materials employed was achieved. Both porosity measurements and SEM micrographs demonstrated that the highest lubricant oil retention values were reached by macroporous adsorbents having open structure and large surface area, suitable for overcoming the fluid’s resistance to flow and avoiding pore-blocking effects.http://www.sciencedirect.com/science/article/pii/S2772397622000235Na-P1 zeoliteLubricating oil sorptionZeolite tuffsDiatomiteFly ashSynthetic zeolite |
| spellingShingle | Maria Roulia Konstantina Koukouza Michael Stamatakis Charalampos Vasilatos Fly-ash derived Na-P1, natural zeolite tuffs and diatomite in motor oil retention Cleaner Materials Na-P1 zeolite Lubricating oil sorption Zeolite tuffs Diatomite Fly ash Synthetic zeolite |
| title | Fly-ash derived Na-P1, natural zeolite tuffs and diatomite in motor oil retention |
| title_full | Fly-ash derived Na-P1, natural zeolite tuffs and diatomite in motor oil retention |
| title_fullStr | Fly-ash derived Na-P1, natural zeolite tuffs and diatomite in motor oil retention |
| title_full_unstemmed | Fly-ash derived Na-P1, natural zeolite tuffs and diatomite in motor oil retention |
| title_short | Fly-ash derived Na-P1, natural zeolite tuffs and diatomite in motor oil retention |
| title_sort | fly ash derived na p1 natural zeolite tuffs and diatomite in motor oil retention |
| topic | Na-P1 zeolite Lubricating oil sorption Zeolite tuffs Diatomite Fly ash Synthetic zeolite |
| url | http://www.sciencedirect.com/science/article/pii/S2772397622000235 |
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