Page 220 - 《精细化工》2022年第11期
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·2370·                            精细化工   FINE CHEMICALS                                 第 39 卷

                 上述结果表明,OMMT 的加入能够提升聚合物                        [3]   ZHU H R, LI  C X,  YANG  F,  et al. Effect of thermal treatment
                                                                   temperature on the flowability and wax deposition characteristics of
            的抗老化性,这种稳定性的提高归因于具有片层结                                 changqing waxy crude oil[J]. Energy & Fuels, 2018, 32(10): 10605-
                                                                   10615.
            构的 OMMT 能够分散在 PSMS 基体中,聚合物分子                       [4]   ZHANG X (张绚), XIAO  G (肖刚), QI W Y (齐文远),  et al. The
            链在片层附近受到 OMMT 的吸附作用,运动受到牵                              application of pour point depressant in karamay-dushanzi crude oil
                                                                   pipeline[J]. Oil & Gas Storage and Transportation (油气储运), 2011,
            制,大分子受热裂解时产生的小分子气体扩散与逸                                 30(1): 49-52, 56.
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            出也受到了限制,在一定程度上起到了保护聚合物                                 Advances in Rheology-The 14th National Rheology Academic
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            大分子链的作用 ,故聚合物热分解温度提高,从                                 Conference (流变学进展-第十四届全国流变学学术会议), 2018:
                                                                   324-328.
            而总体上表现出优越的长期稳定性,为开发更加经                             [6]   WANG J (王晶). The development and application fields of crude oil
                                                                   pour point today[J]. Applied Chemical Industry (应用化工), 2016:
            济、有效且稳定的纳米复合降凝剂提供了参考价值。                                45(8): 1558-1562.
            2.3   降凝效果对比                                       [7]   YAO B, LI C  X, YANG F,  et al. Organically modified nano-clay
                                                                   facilitates pour point depressing activity of polyoctadecylacrylate[J].
                 将本研究所合成的 PSMS/OMMT 与文献报道中                         Fuel, 2016, 166: 96-105.
                                                               [8]   ZHEN Z W, JING G  L, SUN Z N,  et al. The development and
            所应用的三元聚合物聚(丙烯酸十八酯-马来酸酐-苯                               evaluation of novel nano-pour point depressant[J]. Petroleum Science
                                                                   and Technology, 2017, 36(3): 208-214.
            乙烯)降凝剂效果进行对比,结果如表 3 所示。从
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            表 3 看出,PSMS/OMMT 用于克拉玛依原油降凝时                           characterization of nanohybrid of poly(octadecylacrylates derivatives)/
                                                                   montmorillonite as pour point depressants and  flow improver for
            用量少,降凝效果好。                                             waxy crude oil[J]. Journal of Applied Polymer Science, 2019, 136(17):
                                                                   47333.

                           表 3   降凝效果对比                        [10]  HE C Z, DING Y F, CHEN J, et al. Influence of the nano-hybrid pour
                Table 3    Condensation reduction effect comparison   point depressant on flow properties of waxy crude oil[J]. Fuel, 2016,
                                                                   167: 40-48.
                        原油               添加量/%      ΔPP/℃      [11]  YAO  B, LI C X,  YANG F,  et al. Structural properties  of gelled
                                                                   changqing waxy crude oil benefitted with nanocomposite pour point
                     [20]
               江汉原油                      300 mg/L   15
                                                                   depressant[J]. Fuel, 2016, 184: 544-554.
               150#基础油 [21]                0.4      16         [12]  PENG Z H (彭泽恒), YU W J (喻伟婕), LI Q P (李清平),  et al.
               辽河稠油  [22]                  0.8       7             Research progress of nanocomposite pour point depressants for waxy
                                                                   oil[J]. Applied Chemical Industry (应用化工), 2022, 51(1): 164-169.
               大庆原油  [23]                  0.5      14         [13]  ZHANG D  Q (张大全), ZHU R J (朱瑞佳), GAO L  X (高立新),
               兰州石化柴油    [24]              0.1      10             et al. Preparation of organic montmorillonite and its modification for
                                                                   volatile corrosion inhibitor[J]. Fine Chemicals (精细化工), 2007,
               克拉玛依原油(本研究制备)               0.1      25             24(10): 1037-1040.
                                                               [14]  YANG F (杨飞), ZHANG  X P (张晓平), LI C X (李传宪),  et al.
                                                                   Synergistic improvement of rheological properties of synthetic wax
            3   结论                                                 oil by comb-like polymer pour point depressant containing aromatic
                                                                   groups and asphaltenes[J]. Chemical Journal of Chinese Universities
                                                                   (高等学校化学学报), 2019, 40(12): 2606-2614.
                 本文在合成的降凝剂 PSMS 中加入有机改性后                       [15]  LI C X (李传宪), ZHANG C G (张春光), SUN D J (孙德军), et al.
                                                                   Physicochemical research on effect of pour point depressant on wax
            的纳米材料 OMMT,制备纳米复合降凝剂 PSMS/                             precipitation and  dissolution of waxy oil[J]. Chemical Journal of
            OMMT 作为一种克拉玛依原油降凝剂。                                    Chinese Universities (高等学校化学学报), 2003, 24(8): 1451-1455.
                                                               [16]  YUAN M H (袁美和), MA H (马浩), KE H (柯辉), et al. Synthesis
                (1)降凝研究结果表明,在原油中添加 0.1%                            and performance  evaluation  of  nano-silica composite viscosity
                                                                   reducer[J]. Fine Chemicals (精细化工), 2021, 38(6): 1250-1256.
            (OMMT 加入量为 10%)PSMS/OMMT 时,凝点降                     [17]  SOLIMAN E A, ELKATORY M R, HASHEM A I, et al. Synthesis
            幅 25  ℃,降黏率为 65.7%,高于常用商业降凝剂降                          and performance of maleic anhydride copolymers with alkyl linoleate
                                                                   or tetra-esters as pour point depressants for waxy crude oil[J]. Fuel,
            凝效果。                                                   2018, 211: 535-547.
                                                               [18]  ZENG D Q (曾德群), YANG X (杨旭), YAN  X (闫秀),  et al.
                (2)加入 OMMT 能够提高聚合物的降凝效果,                           Synthesis and evaluation of an  oil-soluble terpolymer viscosity
            PSMS/OMMT 与 PSMS 降凝剂相比,使用量减少                           reducer[J]. Fine Chemicals (精细化工), 2014, 31(7): 903-906.
                                                               [19]  XU J, XING S L, QIAN H Q, et al. Effect of polar/nonpolar groups
            1/3、降凝效果提升 3  ℃、降黏率提升约 10%;抗老                          in comb-type copolymers on cold flowability and paraffin crystallization
                                                                   of waxy oils[J]. Fuel, 2013, 103: 600-605.
            化性能也得到大幅提高。                                        [20]  LI K H(李克华),  WU J Z(伍家忠),  ZHENG Y C(郑延成),  et al.
                                                                   Synthesis of styrene-maleic anhydride-octadecyl acrylate terpolymer
                (3)聚合物 PSMS 分子改变了蜡晶形貌,减小                           and its pour point depressing performance[J]. Advances in Fine
            了固-液界面面积,削弱了蜡晶间的相互作用,使蜡                                Petrochemicals(精细石油化工进展), 2001, 2(4): 16-18.
                                                               [21]  YIN S M (殷树梅), SHI X Y (史新妍), CHEN W X (陈为新), et al.
            晶更加分散,既进一步降低了原油凝点,又减少了                                 Study on synthesis and properties of novel pour point depressant for
                                                                   oil[J]. Advances in Fine Petrochemicals (精细石油化工进展), 2006,
            降凝剂使用量,提高了原油在低温下的流动性。                                  7(7): 14-16.
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            参考文献:                                                  Study on  pour  point depressant for Liaohe crude oil[J]. Speciality
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