کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6630792 | 1424937 | 2018 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Structural information of asphaltenes derived from petroleum vacuum residue and its hydrotreated product obtained by FT-ICR mass spectrometry with narrow ion isolation windows
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
مهندسی شیمی (عمومی)
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چکیده انگلیسی
Petroleum asphaltene is a complex natural organic mixture which plays a crucial role in the refining processes. In this work, asphaltenes derived from petroleum vacuum residue and its hydrotreated product were characterized by high-field Fourier transform ion cyclotron resonance mass spectrometry (FT-ICR MS). Tandem mass spectra with narrow ion isolation window were realized by increasing the value of collision RF amplitude. Tandem mass spectra with 3â¯Da and 1â¯Da isolation windows were compared, which demonstrated the advantages of applying narrow isolation window of 1â¯Da. The tandem mass spectra of asphaltenes were simplified due to the narrow isolation window. Moreover, a better correlation between the parent and fragment ions obtained by narrow isolation window of 1â¯Da was suggested by moving the isolation window. Finally, aromatic hydrocarbons with more naphthenic rings were suggested for the molecular structures of the processed asphaltene according to the results.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Fuel - Volume 227, 1 September 2018, Pages 111-117
Journal: Fuel - Volume 227, 1 September 2018, Pages 111-117
نویسندگان
Wei Wang, Ming Dong, Chunxia Song, Xinheng Cai, Yingrong Liu, Zelong Liu, Songbai Tian,