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| Structural characterization, thermal stability and lubricity property of methyl oleate monomethyl succinate |
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| DOI： |
| KeyWord:methyl oleate maleic anhydride lubricity additive low sulfur diesel |
| FundProject:国家重点研发计划项目(2017YFB0306605) |
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| Abstract: |
| In order to prepare a new lubricity additive of diesel, methyl oleate, maleic anhydride and methanol were used as raw materials to synthesize methyl oleate monomethyl succinate (OM). The structure of OM was characterized by electrospray ionization mass spectrometry(ESI-MS), Fourier infrared spectroscopy(FT-IR), proton nuclear magnetic resonance spectroscopy(1H NMR), and carbon nuclear magnetic resonance spectroscopy(13 C NMR), and its thermal stability was evaluated by thermogravimetric anaylsis. In addition, the lubricity property of OM was specifically investigated in low sulfur diesel by high-frequency reciprocating rig (HFRR). The results showed that OM had the typical structure of —CC—, —COOH and —COOCH3，and good thermal stability. The OM could effectively improve the lubricity properties of low sulphur diesel. The lubricity of low sulfur diesel at a dosage of 200 μg/g OM could meet the requirement of lubricity. Whats more, when the OM was added to two low sulfur diesel at a dosage of 200-1 500 μg/g, the lubricity properties of blank diesels increased by 35.4%-59.6% and 33.9%-54.9%, respectively. |
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