Pregled bibliografske jedinice broj: 1075748
Magnetic Field Influence on Asphaltene Aggregation Observed by DOSY NMR
Magnetic Field Influence on Asphaltene Aggregation Observed by DOSY NMR // 2019 ISMAR EUROMAR, Joint Conference / Oschkinat, Hartmut (ur.).
Berlin: GDCh, 2019. str. 650-650 (poster, međunarodna recenzija, sažetak, znanstveni)
CROSBI ID: 1075748 Za ispravke kontaktirajte CROSBI podršku putem web obrasca
Naslov
Magnetic Field Influence on Asphaltene Aggregation
Observed by DOSY NMR
Autori
Smrečki, Vilko ; Novak, Predrag ; Jednačak, Tomislav ; Kovačević, Davor ; Mikulandra, Ivana ; Djetelić Ibrahimpašić, Mateja ; Zangger, Klaus ; Parlov Vuković, Jelena
Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni
Izvornik
2019 ISMAR EUROMAR, Joint Conference
/ Oschkinat, Hartmut - Berlin : GDCh, 2019, 650-650
Skup
EUROISMAR 2019
Mjesto i datum
Berlin, Njemačka, 25.08.2019. - 30.08.2019
Vrsta sudjelovanja
Poster
Vrsta recenzije
Međunarodna recenzija
Ključne riječi
asphaltene ; aggregation ; DOSY NMR
Sažetak
Asphaltenes, the heaviest, the most polar and the least reactive molecules in crude oil can aggregate and cause many problems during oil recovery and refining process. Asphaltenes isolated from the Middle East crude oil, atmospheric and vacuum residues were studied in this work. It will be demonstrated that asphaltene aggregates form different molecular weight species with different composition and number of monomer units. Furthermore, aggregation process has been found to be affected by the magnetic field [1]. A significant increase of diffusion coefficients of aggregates upon the increase of the magnetic field strength will be shown and discussed in terms of higher molecular mobility of present species at higher magnetic fields that could lead to a degradation of aggregates. References [1] J. Parlov Vuković, P. Novak, T. Jednačak, M. Kveštak, D. Kovačević, V. Smrečki, I. Mikulandra, S. Glanzer, K. Zangger, J. Dispers. Sci. Technol. 40 (2019) DOI:10.1080/01932691.2018.1561302
Izvorni jezik
Engleski
Znanstvena područja
Kemija
POVEZANOST RADA
Ustanove:
INA-Industrija nafte d.d.,
Institut "Ruđer Bošković", Zagreb,
Prirodoslovno-matematički fakultet, Zagreb
Profili:
Mateja Djetelić Ibrahimpašić (autor)
Tomislav Jednačak (autor)
Ivana Mikulandra (autor)
Jelena Parlov Vuković (autor)
Davor Kovačević (autor)
Predrag Novak (autor)
Vilko Smrečki (autor)