有机蒙脱石复合降凝剂的制备与防蜡降凝作用机理研究
收稿日期: 2023-01-05
网络出版日期: 2023-09-19
Study on preparation of organic montmorillonite composite pour point depressant and its mechanism of wax prevention and pour point reduction
Received date: 2023-01-05
Online published: 2023-09-19
以丙烯酸十八酯、乙酸乙烯酯和烯丙基磺酸钠为原料,过氧化苯甲酰为引发剂,利用自由基聚合法制备了一种三元聚合物降凝剂;为提高聚合物降凝剂的防蜡降凝效果和稳定性,用十二烷基三甲基氯化铵(DTAC)改性后的蒙脱石与聚合物制备纳米蒙脱石复合降凝剂,对蜡质模型油进行了效果评价。利用差示扫描量热仪(DSC)和偏光显微镜(POM)对降凝剂作用机理进行了分析。结果表明:在添加量为700 mg/L时,纳米复合降凝剂BYX-2(5%)可使模型油防蜡率达94.3%,凝固点降低至21 ℃;与相同添加量下的BYX-2降凝剂相比,防蜡率提升7.1%,凝固点降低3 ℃,且稳定性得到提升。
张文静 , 周立山 , 杨文博 , 周柄男 , 韩恩山 , 何艳贞 . 有机蒙脱石复合降凝剂的制备与防蜡降凝作用机理研究[J]. 无机盐工业, 2023 , 55(9) : 81 -87 . DOI: 10.19964/j.issn.1006-4990.2023-0010
A ternary polymeric pour point depressant was prepared by using octadecyl acrylate,vinyl acetate and sodium allyl sulfonate as raw materials and benzoyl peroxide as initiator.To improve the wax prevention and stabilization effect of polymer pour point depressant,a nano-montmorillonite composite pour point depressant was prepared by using dodecyl trimethyl ammonium chloride(DTAC) modified montmorillonite and polymer to evaluate the effect on waxy model oil.The mechanism of the action of the pour point depressant was also reasoned and analyzed by differential scanning calorimetry(DSC) and polarized light microscopy(POM).The results showed that the nanocomposite pours point depressant BYX-2(5%) could achieve 94.3% wax prevention rate and lower pour point to 21 oC for model oil at 700 mg/L addition.Compared with BYX-2 pour point agent at the same addition rate,the wax prevention rate was improved by 7.1%,the pour point was lowered by 3 oC,and the stability was improved.
| 1 | EDWARDS R T.Crystal habit of paraffin wax[J].Industrial & Engineering Chemistry,1957,49(4):750-757. |
| 2 | YANG Fei, LI Chen, LI Chuanxian,et al.Scaling of structural characteristics of gelled model waxy oils[J].Energy & Fuels,2013,27(7):3718-3724. |
| 3 | ZHANG Guangqing, CHEN Mian.Dynamic fracture propagation in hydraulic re-fracturing[J].Journal of Petroleum Science and Engineering,2010,70(3/4):266-272. |
| 4 | AIYEJINA A, CHAKRABARTI D P, PILGRIM A,et al.Wax formation in oil pipelines:A critical review[J].International Journal of Multiphase Flow,2011,37(7):671-694. |
| 5 | VALINEJAD R, SOLAIMANY NAZAR A R.An experimental design approach for investigating the effects of operating factors on the wax deposition in pipelines[J].Fuel,2013,106:843-850. |
| 6 | YANG Fei, ZHAO Yansong, SJ?BLOM J,et al.Polymeric wax inhibitors and pour point depressants for waxy crude oils:A critical review[J].Journal of Dispersion Science and Technology,2015,36(2):213-225. |
| 7 | MACHADO A L C, LUCAS E F, GONZáLEZ G.Poly(ethylene-co-vinyl acetate)(EVA) as wax inhibitor of a Brazilian crude oil:Oil viscosity,pour point and phase behavior of organic solutions[J].Journal of Petroleum Science and Engineering,2001,32(2/3/4):159-165. |
| 8 | RADULESCU A, SCHWAHN D, STELLBRINK J,et al.Wax crystallization from solution in hierarchical morphology templated by random poly(ethylene-co-butene) self-assemblies[J].Macromolecules,2006,39(18):6142-6151. |
| 9 | LIKHATSKY V V, BALABIN R M, SYUNYAEV R Z.Calculation of dipole moment of fractal asphaltene cluster[J].Journal of Dispersion Science and Technology,2011,32(10):1502-1508. |
| 10 | REN Yifan, ZHENG Wentian, DUAN Xiaoguang,et al.Recent advances in electrochemical removal and recovery of phosphorus from water:A review[J].Environmental Functional Materials,2022,1(1):10-20. |
| 11 | 龙小柱,王闯,王肖肖,等.蜡油降凝剂PMST的合成及其降凝效果[J].精细化工,2013,30(7):784-788,797. |
| LONG Xiaozhu, WANG Chuang, WANG Xiaoxiao,et al.Synthesis of wax oil pour point depressant PMST and its pour point depressing effect[J].Fine Chemicals,2013,30(7):784-788,797. | |
| 12 | ALVARES D R, MENEZES S M, LUCAS E F.Kinetic study of the synthesis of a methacrylic ester copolymer by nuclear magnetic resonance[J].Polymer International,2004,53(11):1639-1643. |
| 13 | ALVARES D, LUCAS E F.Chemical structure effect of(meth) acrylic ester copolymers and modified poly(etliylene-co-vinyl acetate) copolymer on paraffin deposition prevention in crude oil[J].Petroleum Science and Technology,2000,18(1/2):195-202. |
| 14 | WANG Kangshi, WU C H, CREEK J L,et al.Evaluation of effects of selected wax inhibitors on wax appearance and disappearance temperatures[J].Petroleum Science and Technology,2003,21(3/4):359-368. |
| 15 | 杨雨富,王晓莉,乔楠林,等.乙烯-丙烯共聚物类黏度指数改进剂低温性能研究[J].化工新型材料,2019,47(S1):167-170. |
| YANG Yufu, WANG Xiaoli, QIAO Nanlin,et al.Study on low-temperature performance of ethylene-propylene copolymer viscosity index improver[J].New Chemical Materials,2019,47(S1):167-170. | |
| 16 | 李若雪,张行,卢丽丽,等.纳米级油溶性降黏剂聚甲基丙烯酸十八烷基酯-丙烯酰胺/介孔纳米SiO2的制备及应用[J].化工新型材料,2018,46(5):154-157. |
| LI Ruoxue, ZHANG Hang, LU Lili,et al.Preparation and application of nanometer oil-soluble viscosity reducer poly(octadecyl methacrylate)-acrylamide/mesoporous nano-SiO2 [J].New Che-Materials mical,2018,46(5):154-157. | |
| 17 | MAO Jincheng, KANG Zhi, YANG Xiaojiang,et al.Synthesis and performance evaluation of a nanocomposite pour-point depressant and viscosity reducer for high-pour-point heavy oil[J].Energy & Fuels,2020,34(7):7965-7973. |
| 18 | WANG Feng, ZHANG Dongmin, DING Yanfen,et al.The effect of nanohybrid materials on the pour-point and viscosity depressing of waxy crude oil[J].Chinese Science Bulletin,2011,56(1):14-17. |
| 19 | YAO Bo, LI Chuanxian, YANG Fei,et al.Structural properties of gelled Changqing waxy crude oil benefitted with nanocomposite pour point depressant[J].Fuel,2016,184:544-554. |
| 20 | 牛艳,关晓辉,尹荣.纳米复合絮凝剂的制备及其除油性能研究[J].无机盐工业,2010,42(4):52-54. |
| NIU Yan, GUAN Xiaohui, YIN Rong.Study on preparation and oil removal performance of nano-sized complex coagulant[J].Inorganic Chemicals Industry,2010,42(4):52-54. | |
| 21 | 田素燕,王小华,高金泉.钴掺杂蒙脱土改性材料的制备及吸附机理的研究[J].无机盐工业,2015,47(2):28-31. |
| TIAN Suyan, WANG Xiaohua, GAO Jinquan.Synthesis and adsorption mechanism of Co-doped montmorillonite composites[J].Inorganic Chemicals Industry,2015,47(2):28-31. | |
| 22 | 罗晓雯,郑和平,邹永鑫,等.纳米蒙脱土复合降凝剂的制备及性能评价[J].精细化工,2022,39(11):2364-2370. |
| LUO Xiaowen, ZHENG Heping, ZOU Yongxin,et al.Preparation and performance evaluation of nano montmorillonite composite pour point depressant[J].Fine Chemicals,2022,39(11):2364-2370. | |
| 23 | GAO Chong, HE Cunzhe, DING Yanfen,et al.The yield stress of model waxy oil after incorporation of organic montmorillonite[J].Fuel,2017,203:570-578. |
| 24 | 彭泽恒,喻伟婕,李清平,等.含蜡原油纳米降凝剂研究进展[J].应用化工,2022,51(1):164-169. |
| PENG Zeheng, YU Weijie, LI Qingping,et al.Research progress of nano pour point depressant for waxy crude oil[J].Applied Chemical Industry,2022,51(1):164-169. | |
| 25 | 杨飞,夏雪,张晓平,等.乙烯-醋酸乙烯酯/沥青质复合降凝剂对青海含蜡原油流变特性的影响[J].中国石油大学学报(自然科学版),2022,46(2):196-204. |
| YANG Fei, XIA Xue, ZHANG Xiaoping,et al.Influence of EVA/asphaltene composite pour point depressant on rheological properties of Qinghai waxy crude oil[J].Journal of China University of Petroleum(Edition of Natural Science),2022,46(2):196- 204. | |
| 26 | HUANG Guobo, GAO Jianrong, LI Yujing,et al.Functionalizing nano-montmorillonites by modified with intumescent flame retardant:Preparation and application in polyurethane[J].Polymer Degradation and Stability,2010,95(2):245-253. |
/
| 〈 |
|
〉 |