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[1]张冬敏,姜保良,张立新,等.复合纳米材料对含蜡原油析蜡特性的影响[J].油气储运,2011,30(04):249-251,254.[doi:10.6047/j.issn.1000-8241.2011.04.002]
　Zhang Dongmin,Jiang Baoliang,Zhang Lixin,et al.The influence of composite nanometer-sized material on wax deposit property of waxy crude oil[J].Oil & Gas Storage and Transportation,2011,30(04):249-251,254.[doi:10.6047/j.issn.1000-8241.2011.04.002]
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复合纳米材料对含蜡原油析蜡特性的影响

《油气储运》[ISSN:1000-8241/CN:13-1093/TE] 卷: 30 期数: 2011年04期 页码: 249-251,254 栏目: 出版日期: 2011-04-25
Title:
The influence of composite nanometer-sized material on wax deposit property of waxy crude oil
文章编号:
1000-8241(2011)04-0249-03
作者:
张冬敏1; 姜保良1; 张立新1;  阳明书2 ; 丁艳芬2; 支树洁1; 霍连风1; 欧阳欣1; 王峰2; 张世民2; 李莉1
1.中国石油管道科技研究中心，河北廊坊 065000；2.中国科学院化学研究所，北京 100190
Author(s):
Zhang Dongmin; Jiang Baoliang; Zhang Lixin; et al
PetroChina Pipeline R & D Center，Langfang，Hebei，065000.
关键词:
含蜡原油; 复合纳米材料; 石蜡; 结晶形态; 析蜡点; 低温流动性
Keywords:
waxy crude oil; composite nanometer-sized material; paraffine; crystal form; wax appearance temperature; low temperature fluidity
分类号:
TE868
DOI:
10.6047/j.issn.1000-8241.2011.04.002
文献标志码:
A
摘要:
大庆原油是典型的高凝、高粘、高含蜡原油，其低温流动性较差。为了改善含蜡原油的低温流动性，在大庆原油中添加复合纳米材料，通过 XRD 扫描实验和 POM 拍照，研究了复合纳米材料对含蜡原油中石蜡的结晶形态和析蜡点的影响。进行了大庆原油空白样和大庆原油分别添加 50 g/t EVA、100 g/t 复合纳米材料样品的动态降温 XRD 扫描对比实验，结果表明：复合纳米材料能够有效地改善大庆原油中石蜡的结晶形态（原油中 60.01% 的正构烷烃的结晶形态得到改善），使晶粒尺度变小，晶面间距离增大，并降低了大庆原油的析蜡点，从而明显改善了原油的低温流动性，提高了原油低温流动的时效稳定性；复合纳米材料对原油的降凝、降粘效果明显优于传统的 EVA 类化学降凝剂。
Abstract:

Daqing Crude Oil is a typical high gelling point，high viscosity and high wax crude，and its fluidity at low temperature is relatively bad. In order to improve its low temperature fluidity，composite nanometer-sized material is added into the crude. Based on XRD scanning experiment and POM photography，the impact of composite nanometer-sized material on crystal form of paraffine in waxy crude oil and wax precipitation point is studied. Dynamic temperature drop XRD scanning comparison testing on Daqing Crude Oil and its samples with 50 g/t EVA and with 100 g/t composite nanometer-sized material is carried out. Laboratory results show that the composite nanometer-sized material can significantly improve the crystal form of crude paraffine（crystal form of 60.01% n-alkane in crude is effectively modified）. It decreases the dimension size of the crystal particle and enlarges the distance between crystal faces. Besides，the wax appearance temperature is dropped distinctly. Therefore the low temperature fluidity is substantially improved，so does the fluidity stability in a long term. In summary the composite nanometer-sized material is better than traditional EVA agent in terms of its capacity to decrease the wax appearance temperature and viscosity.

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参考文献/References:

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[2] 郑立辉，盛奎龙，潘金亮.石油蜡的生产及深加工[M].北京：化学工业出版社，2008：17-36.
[3] Zhang J，Zhang M，Wan J，et al.Theoretical study of the prohibited mechanism for ethylene/vinyl acetate co-polymers to the wax crystal growth[J].The Journal of Physical Chemistry，2008，112（1）：36-43.
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（收稿日]

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备注/Memo

张冬敏，高级工程师，1961年生，1983毕业于管道学院石油工程专业，现主要从事油气管道输送工艺技术研究。
电话：0316-2174496；Email：kjzdm@petrochina.com.cn（收稿日期：2010-11-01）

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