Effects of Hydrocarbon Composition on the Stability of Diesel Storage

doi:10.11885/j.issn.1674-5086.2016.07.16.03

Abstract

Abstract: Diesel is known to deteriorate in quality during storage. To examine this issue, the effects of various hydrocarbon compounds on the stability of processed diesel fuels from China were investigated using typical samples of diesel. The results of the hydrocarbon composition analyses indicated that the total aromatics and paraffin contents of diesel are strongly correlated with each other (with a correlation coefficient of 0.90). Through the combined use of correlation analysis and stepwise linear regression, a correlation model was constructed for stability indicators with respect to hydrocarbon composition, and validated through fitting experiments. It was shown that this model can be used to accurately predict the stability of diesel storage. Hydrocarbon compounds with the largest impact on diesel storage stability were determined and were divided into three grades according to their influence on storage stability. It was found that acenaphthylene and tricyclic aromatic hydrocarbons have the largest influence on the deterioration of diesel quality, whereas paraffin has the greatest effect on the cetane number and calorific value of the diesel.

Key words: diesel, storage stability, hydrocarbon composition, regression analysis, acenaphthylene, tricyclic aromatic hydrocarbons

CLC Number:

TE626

REN Lianling, XU Peng, GE Rui. Effects of Hydrocarbon Composition on the Stability of Diesel Storage[J]. 西南石油大学学报(自然科学版), 2018, 40(2): 176-182.

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URL: http://journal15.magtechjournal.com/Jwk_xnzk/EN/10.11885/j.issn.1674-5086.2016.07.16.03

http://journal15.magtechjournal.com/Jwk_xnzk/EN/Y2018/V40/I2/176

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