| 赵忠奎,李宗石,乔卫红,程侣柏.癸基甲基萘磺酸盐表面活性剂合成及性能研究[J].,2008,(3):318-322 |
| 癸基甲基萘磺酸盐表面活性剂合成及性能研究 |
| Study of synthesis and properties of decyl methylnaphthalene sulfonate surfactant |
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| DOI：10.7511/dllgxb200803002 |
| 中文关键词: 癸基甲基萘磺酸盐 表面张力 界面张力 三次采油 |
| 英文关键词: decyl methylnaphthalene sulfonate surface tension interfacial tension enhanced oil recovery |
| 基金项目:国家“九七三”重点基础研究发展规划资助项目(G1999022501). |
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| 中文摘要: |
| 以甲基萘和溴代癸烷为原料，合成癸基甲基萘中间体，经磺化、提纯，得到高纯度的癸基甲基萘磺酸盐表面活性剂．采用HPLC测定了表面活性剂的纯度，为97%．利用IR、UV及ESI-MS对其结构进行了表征．研究了癸基甲基萘磺酸盐表面活性剂的表面活性和油水界面性能，讨论了表面活性剂质量分数、氢氧化钠质量分数对表面活性剂水溶液/山东胜利油田原油界面张力的影响．结果表明，癸基甲基萘磺酸盐表面活性剂具有很高的降低溶液表面张力和油/水界面张力的能力和效率；临界胶束浓度为0.26 mmol\5L -1 ，该浓度下的表面张力为31.61 mN\5m -1 ，动态界面张力最低值达到2.59×10 -6 mN\5m -1 ．癸基甲基萘磺酸盐表面活性剂有望成为较理想的三次采油用表面活性剂． |
| 英文摘要: |
| The high purity decyl methylnaphthalene sulfonate (DMNS) surfactant was prepared through sulfonation and purification of decyl methylnaphthalene intermediate, which was obtained by the alkylation of methylnaphthalene with n-bromodecane. The purity of DMNS (97%) was determined by HPLC, the structure of DMNS was characterized by IR, UV and ESI-MS. The surface and interfacial properties of DMNS were studied. The effects of mass fractions of surfactant and sodium hydroxide on the dynamic interfacial tension (\%γ\% dit ) between the solutions of product and the Shengli crude oil were discussed. The results indicate that the DMNS surfactant prepared exhibits good capability and efficiency to lower the surface tension and the interfacial tension between oil and water. The critical micelle concentration is 0.26 mmol\5L -1 , and γ cmc is 31.61 mN\5m -1 . The minimum of \%γ\% dit has reached 2.59×10 -6 mN\5m -1 . The DMNS surfactant has a good interfacial activity and can be used as a surfactant for enhanced oil recovery. |
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