Year 2021, Volume 10 , Issue 2, Pages 370 - 374 2021-06-07

Year-Dependent Change of DNP Parameters in p-Difluorobenzene Suspension with Asphaltene
Year-Dependent Change of DNP Parameters in p-Difluorobenzene Suspension with Asphaltene

Handan ENGİN KIRIMLI [1]


Petroleum asphaltenes are the heaviest, most aromatic and most coplex component of crude oil and asphaltenes are paramagnetic. Overhauser Dynamic nuclear polarization (ODNP) were performed to study samples of asphaltene/ p-Difluorobenzene at 1.53 mT. p-difluorobenzen solvent with asfalten in three different concentrations waiting five years with oxygen removed have been stuied. Dynamic nuclear polarization parameters were determined by performing ODNP experiments again. The results of our studies and the calculated parameters, especially the coupling parameter, indicates that there were dipolar interactions between nuclei and free electron spins. These dipolar interactions indicate that, at the end of five years the the asphaltene micelles in suspension agglomerated and that make the molecule movements slower. The obtained dynamic nuclear polarization parameters were compared with their values in the literature and it was observed that the parameters decreased slightly with time.
Petrol asfaltenleri ham petrolün en ağır, en aromatik ve en kompleks bileşenidir ve asfaltenler paramanyetiktir. Overhauser Dinamik nükleer polarizasyon (ODNP), 1.53 mT'da asfalten / p-Diflorobenzen örneklerini incelemek için gerçekleştirildi. Oksijenden uzaklaştırılarak beş yıl bekletilen asfaltenli p-difluorobenzen çözgen üç farklı konsantrasyonda çalışıldı. ODNP deneyleri tekrar yapılarak, Dinamik nükleer polarizasyon parametreleri belirlendi. Çalışmalarımızın sonuçları ve hesaplanan parametreler, özellikle çiftlenme parametresi, çekirdek ve serbest elektron spinleri arasında dipolar etkileşmeler olduğunu göstermektedir. Bu dipolar etkileşmeler, beş yılın sonunda süspansiyondaki asfalten misellerinin topaklandığını ve molekül hareketlerini yavaşlattığını göstermektedir. Elde edilen dinamik nükleer polarizasyon parametreleri literatürdeki değerleri ile karşılaştırılmış ve parametrelerin zamanla bir miktar azaldığı görülmüştür.
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Primary Language en
Subjects Science
Journal Section Araştırma Makalesi
Authors

Orcid: 0000-0003-0300-3381
Author: Handan ENGİN KIRIMLI (Primary Author)
Institution: BURSA ULUDAĞ ÜNİVERSİTESİ, FEN-EDEBİYAT FAKÜLTESİ, FİZİK BÖLÜMÜ, FİZİK PR.
Country: Turkey


Dates

Publication Date : June 7, 2021

Bibtex @research article { bitlisfen870594, journal = {Bitlis Eren Üniversitesi Fen Bilimleri Dergisi}, issn = {2147-3129}, eissn = {2147-3188}, address = {}, publisher = {Bitlis Eren University}, year = {2021}, volume = {10}, pages = {370 - 374}, doi = {10.17798/bitlisfen.870594}, title = {Year-Dependent Change of DNP Parameters in p-Difluorobenzene Suspension with Asphaltene}, key = {cite}, author = {Engin Kırımlı, Handan} }
APA Engin Kırımlı, H . (2021). Year-Dependent Change of DNP Parameters in p-Difluorobenzene Suspension with Asphaltene . Bitlis Eren Üniversitesi Fen Bilimleri Dergisi , 10 (2) , 370-374 . DOI: 10.17798/bitlisfen.870594
MLA Engin Kırımlı, H . "Year-Dependent Change of DNP Parameters in p-Difluorobenzene Suspension with Asphaltene" . Bitlis Eren Üniversitesi Fen Bilimleri Dergisi 10 (2021 ): 370-374 <https://dergipark.org.tr/en/pub/bitlisfen/issue/62708/870594>
Chicago Engin Kırımlı, H . "Year-Dependent Change of DNP Parameters in p-Difluorobenzene Suspension with Asphaltene". Bitlis Eren Üniversitesi Fen Bilimleri Dergisi 10 (2021 ): 370-374
RIS TY - JOUR T1 - Year-Dependent Change of DNP Parameters in p-Difluorobenzene Suspension with Asphaltene AU - Handan Engin Kırımlı Y1 - 2021 PY - 2021 N1 - doi: 10.17798/bitlisfen.870594 DO - 10.17798/bitlisfen.870594 T2 - Bitlis Eren Üniversitesi Fen Bilimleri Dergisi JF - Journal JO - JOR SP - 370 EP - 374 VL - 10 IS - 2 SN - 2147-3129-2147-3188 M3 - doi: 10.17798/bitlisfen.870594 UR - https://doi.org/10.17798/bitlisfen.870594 Y2 - 2021 ER -
EndNote %0 Bitlis Eren Üniversitesi Fen Bilimleri Dergisi Year-Dependent Change of DNP Parameters in p-Difluorobenzene Suspension with Asphaltene %A Handan Engin Kırımlı %T Year-Dependent Change of DNP Parameters in p-Difluorobenzene Suspension with Asphaltene %D 2021 %J Bitlis Eren Üniversitesi Fen Bilimleri Dergisi %P 2147-3129-2147-3188 %V 10 %N 2 %R doi: 10.17798/bitlisfen.870594 %U 10.17798/bitlisfen.870594
ISNAD Engin Kırımlı, Handan . "Year-Dependent Change of DNP Parameters in p-Difluorobenzene Suspension with Asphaltene". Bitlis Eren Üniversitesi Fen Bilimleri Dergisi 10 / 2 (June 2021): 370-374 . https://doi.org/10.17798/bitlisfen.870594
AMA Engin Kırımlı H . Year-Dependent Change of DNP Parameters in p-Difluorobenzene Suspension with Asphaltene. Bitlis Eren Üniversitesi Fen Bilimleri Dergisi. 2021; 10(2): 370-374.
Vancouver Engin Kırımlı H . Year-Dependent Change of DNP Parameters in p-Difluorobenzene Suspension with Asphaltene. Bitlis Eren Üniversitesi Fen Bilimleri Dergisi. 2021; 10(2): 370-374.
IEEE H. Engin Kırımlı , "Year-Dependent Change of DNP Parameters in p-Difluorobenzene Suspension with Asphaltene", Bitlis Eren Üniversitesi Fen Bilimleri Dergisi, vol. 10, no. 2, pp. 370-374, Jun. 2021, doi:10.17798/bitlisfen.870594