期刊
FUEL
卷 246, 期 -, 页码 60-68出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.fuel.2019.02.096
关键词
Raman spectroscopy; Coke morphology; Microcrystalline structures; Optical texture index
资金
- Fundamental Research Funds for the Central Universities [17CX05016]
- PetroChina Innovation Foundation [2017D-5007-0506]
- National key R & D program of China [2018YFC1801901]
- State Key Laboratory of Heavy Oil Processing [SLKZZ-2017011, SLKZZ-2017003]
- National Natural Science Foundation of China (NSFC) [21776313]
- Key Research and Development Plan of Shandong Province [2017GGX70108]
- China National Petroleum Corporation [PRIKY16066]
- China Postdoctoral Science Foundation [2016M602219]
- Natural Science Foundation of Shandong Province (CN) [ZR2017BB021]
- Qingdao Postdoctoral Applied Research Project [2016224]
A series of petroleum coke species obtained from commercial plants has been studied by polarized-light microscopy observation (PMO), scanning electron microscope (SEM), and Raman spectroscopy characterization (RS). The morphological characteristics of needle coke, shot coke, and transition coke differed apparently from each other. An explicitly close Growth/Sigmoidal relationship between parameters determined from polarizedlight micrographs and Raman spectra was observed. The full width at half maxima (FWHM) of D-1350 was more appropriate than I-D1350/I-G1580 for morphological correlation, and then establishing the criterion. It was shown that RS with proper spectra decomposition procedure could be a suitable and convenient method to quantitatively assess the morphology of petroleum cokes.
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