| 摘要: |
| 针对高蜡原油聚合物降凝剂合成中功能性单体筛选问题,利用分子模拟技术,模拟了蜡晶的微观结构和宏观形貌,研究了不同单体合成的降凝剂聚合物对蜡晶表面的影响。通过分散聚合法合成了聚(苯乙烯-2-丙烯酰胺基-2-甲基丙磺酸-甲基丙烯酸十八酯)(PSAS)降凝剂,通过实验对其降凝效果进行考察并对模拟结果进行验证,发现降凝剂PSAS净降凝为13 ℃,具有比市售EVA(净降凝8 ℃)更好的降凝效果。实验结果表明,PSAS与原油具有更强的作用效果,与模拟结果吻合。 |
| 关键词: 分子模拟 降凝剂 模拟油 聚合物 |
| DOI：10.3969/j.issn.1007-3426.2018.03.011 |
| 分类号: |
| 基金项目: |
|
| Study on molecular design and performance of pour depressant based on molecular simulation |
|
Yu Shuai1, Sun Yunyun2
|
|
1. School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou, Guangdong, China;2. Shandong Bluetown Analysis and Test Co., Ltd., Jinan, Shandong, China
|
| Abstract: |
| The functional monomer of pour depressant polymer used for high wax crude oil is designed by molecular simulation. In view of the pour depressant polymer functional monomer screening, the microstructure and morphology of wax crystal is simulated by the molecular simulation. The effects of different kinds of pour depressant polymer with the wax crystal surface are studied in this paper. The terpolymer poly (styrene-AMPS-octadecyl methyl-acrylate) (PSAS) is synthesized by the method of dispersion copolymerization. The experiments results show that the PVAS have better depression effect (13 ℃) on the simulated oil and real crude oil than commercial EVA (8 ℃). The experimental results also show that PSAS and crude oil have stronger effect, and the indoor results agree with the simulation results. |
| Key words: molecular simulation pour depressant simulated oil polymer |
