沥青质引发的蜡油体系结蜡层分层现象及分层规律

doi:10.11949/j.issn.0438-1157.20151723

化工学报 ›› 2016, Vol. 67 ›› Issue (6): 2426-2432.DOI: 10.11949/j.issn.0438-1157.20151723

沥青质引发的蜡油体系结蜡层分层现象及分层规律

李传宪¹, 蔡金洋¹, 程梁¹, 杨飞¹, 张皓若², 张莹¹

1. 中国石油大学储运与建筑工程学院, 山东青岛 266555;
2. 中国石油天然气集团公司管道局, 河北廊坊 065000

收稿日期:2015-11-16 修回日期:2016-02-22 出版日期:2016-06-05 发布日期:2016-06-05
通讯作者: 杨飞
基金资助:
国家自然科学基金项目(51204202);中央高校基本科研业务费专项资金项目(14CX02210A,15CX06072A)。

Stratification phenomenon and laws of wax deposits of waxy oil triggered by asphaltene addition

LI Chuanxian¹, CAI Jinyang¹, CHENG Liang¹, YANG Fei¹, ZHANG Haoruo², ZHANG Ying¹

1. Department of Oil & Gas Storage and Transportation Engineering, China University of Petroleum, Qingdao 266555, Shandong, China;
2. China Petroleum Pipeline Bureau, Langfang 065000, Hebei, China

Received:2015-11-16 Revised:2016-02-22 Online:2016-06-05 Published:2016-06-05
Supported by:
supported by the National Natural Science Foundation of China (51204202) and the Fundamental Research Funds for the Central Universities (14CX02210A,15CX06072A).

摘要/Abstract

摘要：

利用自主研发的Couette结蜡装置,对蜡含量相同的油样1(不含沥青质)和油样2[含0.75%(质量分数)沥青质]进行结蜡实验,并研究其结蜡层的分层现象和分层规律。通过对油样1和油样2结蜡表层和底层的宏观形貌、DSC放热、析蜡量、蜡晶微观形貌的分析发现:油样1结蜡层无明显分层现象,而油样2结蜡层分层现象明显,沥青质的加入导致了结蜡层的分层。与结蜡表层相比,油样2结蜡底层的析蜡点、蜡含量与沥青质含量显著升高,蜡晶形貌发展为致密的类球状大蜡晶。油样2结蜡表层沉积量随壁温的升高、油壁温差和转速的增大而减小;结蜡底层沉积量随壁温升高而减小,随油壁温差和转速的增大而增大;总的蜡沉积量随壁温的升高和转速的增大而减小,随油壁温差的增大先增大后减小。

关键词: 蜡, 沉积物, 分层, 蜡油, 沥青质, 结晶, 扩散

Abstract:

Stratification phenomenon and laws of wax deposits were studied for oil samples 1 (without asphaltene) and 2 (0.75%(mass) asphaltene) with the same wax content using the Couette wax deposition device. In the study of stratification phenomenon of wax deposits, the macroscopic morphology, DSC curves, amount of precipitated wax and wax crystal microcosmic morphology of the outer and inner deposits of oil samples 1 and 2 were analyzed. It was found that the deposit of oil sample 1 had no obvious stratification while that of oil sample 2 had obvious stratification, proving that the asphaltene led to the stratification of wax deposit. Compared with outer deposit, the WAT, amount of precipitated wax and asphaltene content of inner deposit of oil sample 2 increased significantly. It was found in the study of stratification laws of wax deposits that the outer wax deposition mass decreased with the increase of the temperature of wax deposition barrel, the temperature difference of oil and wax deposition barrel and the rotate speed of oil sample barrel, while the inner one deceased with the increase of the temperature of wax deposition barrel and increased with the temperature difference of oil and wax deposition barrel and the rotate speed of oil sample barrel. The total wax deposition mass deceased with the increase of the temperature of wax deposition barrel and the rotate speed of oil sample barrel, and increased firstly then decreased with the increase of the temperature difference of oil and wax deposition barrel.

Key words: wax, deposition, stratification, waxy oil, asphaltene, crystallization, diffusion

中图分类号:

TE832

李传宪, 蔡金洋, 程梁, 杨飞, 张皓若, 张莹. 沥青质引发的蜡油体系结蜡层分层现象及分层规律[J]. 化工学报, 2016, 67(6): 2426-2432.

LI Chuanxian, CAI Jinyang, CHENG Liang, YANG Fei, ZHANG Haoruo, ZHANG Ying. Stratification phenomenon and laws of wax deposits of waxy oil triggered by asphaltene addition[J]. CIESC Journal, 2016, 67(6): 2426-2432.

参考文献 17

[1]	杨筱蘅. 原油管道设计与管理[M]. 东营: 中国石油大学出版社, 2006: 228. YANG X H. Pipeline Design and Management[M]. Dongying: China University of Petroleum Press, 2006: 228.
[2]	QUAN Q, GONG J, WANG W, et al. Study on the aging and critical carbon number of wax deposition with temperature for crude oils [J]. Journal of Petroleum Science and Engineering, 2015, 130: 1-5.
[3]	BURGER E D, PERKINS T K, STRIEGLER J H. Studies of wax deposition in the trans Alaska pipeline [J]. Journal of Petroleum Technology, 1981, 33(6): 1075-1086.
[4]	PASO K G, FOGLER H S. Influence of n-paraffin composition on the aging of wax-oil gel deposits [J]. AIChE Journal, 2003, 49(12): 3241-3252.
[5]	SINGH P, VENKSTESAN R, FOGLER H S, et al. Formation and aging of incipient thin film wax-oil gels [J].AIChE Journal, 2000, 46(5): 1059-1074.
[6]	COUTINHO J A P, LOPES DA SILVA J A, FERREIRA A, et al. Evidence for the aging of wax deposits in crude oils by Ostwald ripening [J].Petroleum Science and Technology, 2003, 21(3/4): 381-391.
[7]	黄启玉, 张劲军, 高学峰, 等. 大庆原油蜡沉积规律研究 [J]. 石油学报, 2006, 27(1): 125-129. HUANG Q Y, ZHANG J J, GAO X F, et al. Study on wax deposition of Daqing crude oil [J]. Acta Petrolei Sinaca, 2006, 27(1): 125-129
[8]	SINGH P, VENKSTESAN R, FOGLER H S, et al. Morphological evolution of thick wax deposits during aging [J]. AIChE Journal, 2001, 47(1): 6-18.
[9]	VENKSTESAN R, FOGLER H S. Comments on analogies for correlated heat and mass transfer in turbulent flow [J].AIChE Journal, 2004, 50(7): 1623-1626.
[10]	HUANG Z, LEE H S, SENRA M, et al. A fundamental model of wax deposition in subsea oil pipelines [J]. AIChE Journal, 2011, 57(11): 2955-2964.
[11]	LU Y, HUANG Z, HOFFMANN R, et al. Counterintuitive effects of the oil flow rate on wax deposition [J]. Energy & Fuels, 2012, 26(7): 4091-4097.
[12]	李传宪. 原油流变学[M]. 东营:中国石油大学出版社, 2007: 91. LI C X. Crude Oil Rheology[M]. Dongying: China University of Petroleum Press, 2007: 91.
[13]	VAN WAZER J R. Viscosity and Flow Measurement: A Laboratory Handbook of Rheology[M]. New York: Interscience Publishers, 1963: 86.
[14]	李传宪, 白帆, 王燕. 原油组成对原油管道结蜡规律的影响 [J]. 化工学报, 2014, 65(11): 4571-4578. LI C X, BAI F, WANG Y. Influence of crude oil composition on wax deposition on tubing wall [J]. CIESC Journal, 2014, 65(11): 4573-4577.
[15]	JI Z Y, LI C X, YANG F, et al. An experimental design approach for investigating and modeling wax deposition based on a new cylindrical Couette apparatus[J]. Petroleum Science and Technology, 2016, 34(6): 570-577.
[16]	孙兆林. 原油评价与组成分析[M]. 北京:中国石化出版社, 2007. SUN Z L. Evaluation and Composition Analysis of Crude Oil [M]. Beijing: SINOPEC Press, 2007.
[17]	CHEN J, ZHANG J, LI H. Determining the wax content of crude oils by using differential scanning calorimetry [J]. Thermochim. Acta, 2004, 410: 23-26.报(自然科学版), 2016.(已录用) LI C X, JI Z Y, YANG F, et al. Study on wax deposition of Changqing crude oil based on a newly developed Couette device[J]. Journal of China University of Petroleum(Edition of Natural Science), 2016.(Accepted)
[16]	孙兆林. 原油评价与组成分析[M]. 中国石化出版社, 2007. SUN Z L. Evaluation and composition analysis of crude oil[M]. SINOPEC Press,2007.
[17]	CHEN J, ZHANG J, LI H. Determining the Wax Content of Crude Oils by using Differential Scanning Calorimetry[J]. Thermochim. Acta, 2004, 410: 23-26.

沥青质引发的蜡油体系结蜡层分层现象及分层规律

Stratification phenomenon and laws of wax deposits of waxy oil triggered by asphaltene addition

PDF (PC)

可视化

被引次数

摘要/Abstract

引用本文

使用本文

参考文献 17

相关文章 15

编辑推荐

Metrics

本文评价

[1]	程成, 段钟弟, 孙浩然, 胡海涛, 薛鸿祥. 表面微结构对析晶沉积特性影响的格子Boltzmann模拟[J]. 化工学报, 2023, 74(S1): 74-86.
[2]	张双星, 刘舫辰, 张义飞, 杜文静. R-134a脉动热管相变蓄放热实验研究[J]. 化工学报, 2023, 74(S1): 165-171.
[3]	于宏鑫, 邵双全. 水结晶过程的分子动力学模拟分析[J]. 化工学报, 2023, 74(S1): 250-258.
[4]	傅予, 刘兴翀, 王瀚雨, 李海敏, 倪亚飞, 邹文静, 雷月, 彭永姗. F₃EACl修饰层对钙钛矿太阳能电池性能提升的研究[J]. 化工学报, 2023, 74(8): 3554-3563.
[5]	周继鹏, 何文军, 李涛. 异形催化剂上乙烯催化氧化失活动力学反应工程计算[J]. 化工学报, 2023, 74(6): 2416-2426.
[6]	黄磊, 孔令学, 白进, 李怀柱, 郭振兴, 白宗庆, 李平, 李文. 油页岩添加对准东高钠煤灰熔融行为影响的研究[J]. 化工学报, 2023, 74(5): 2123-2135.
[7]	李辰鑫, 潘艳秋, 何流, 牛亚宾, 俞路. 基于碳微晶结构的炭膜模型及其气体分离模拟[J]. 化工学报, 2023, 74(5): 2057-2066.
[8]	胡香凝, 尹渊博, 袁辰, 是赟, 刘翠伟, 胡其会, 杨文, 李玉星. 成品油在土壤中运移可视化的实验研究[J]. 化工学报, 2023, 74(4): 1827-1835.
[9]	苏晓丹, 朱干宇, 李会泉, 郑光明, 孟子衡, 李防, 杨云瑞, 习本军, 崔玉. 湿法磷酸半水工艺考察与石膏结晶过程研究[J]. 化工学报, 2023, 74(4): 1805-1817.
[10]	吴选军, 王超, 曹子健, 蔡卫权. 数据与物理信息混合驱动的固定床吸附穿透深度学习模型[J]. 化工学报, 2023, 74(3): 1145-1160.
[11]	周培旭, 李亚伦, 叶恭然, 庄园, 吴曦蕾, 郭智恺, 韩晓红. 有限空间内工质物性对制冷剂泄漏扩散特性的影响[J]. 化工学报, 2023, 74(2): 953-967.
[12]	陈毓明, 历伟, 严翔, 王靖岱, 阳永荣. 初生态聚乙烯聚集态结构调控研究进展[J]. 化工学报, 2023, 74(2): 487-499.
[13]	苏伟怡, 丁佳慧, 李春利, 王洪海, 姜艳军. 酶促反应结晶研究进展[J]. 化工学报, 2023, 74(2): 617-629.
[14]	周璇, 李孟亚, 孙杰, 岑振凯, 吕强三, 周立山, 王海涛, 韩丹丹, 龚俊波. 添加剂对氨基酸晶体生长的影响[J]. 化工学报, 2023, 74(2): 500-510.
[15]	陈晨, 杨倩, 陈云, 张睿, 刘冬. 不同氧浓度下煤挥发分燃烧的化学动力学研究[J]. 化工学报, 2022, 73(9): 4133-4146.