大港沥青对正戊烷溶剂中卟啉钒化合物的吸附动力学研究

陈菲菲; 刘庆敬; 孙学文; 许志明; 赵锁奇

大港沥青对正戊烷溶剂中卟啉钒化合物的吸附动力学研究

中国石油大学(北京) 重质油国家重点实验室, 北京 102249

基金项目: 国家的“十二五”科技计划（2012BAE05B06）；中国国家自然科学基金会（NSFC）（U1162204，21176254）。

详细信息

通讯作者:
赵锁奇，Tel：010-89739015；E-mail：sqzhao@cup.edu.cn。

中图分类号: TE624
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出版历程
- 收稿日期: 2013-06-22
- 修回日期: 2013-08-21
- 刊出日期: 2014-02-28

Adsorption kinetics of vanadyl etioporphyrin on Dagang asphaltene in pentane

State Key Laboratory of Heavy Oil Processing, China University of Petroleum (Beijing), Beijing 102249, China

摘要

摘要: 利用静态实验，研究了在正戊烷溶剂中，大港沥青质对卟啉钒模型化合物的吸附动力学，并对吸附机理进行了探讨。通过对吸附卟啉钒化合物前后的大港沥青质进行FT-ICR MS和元素（C/H/N/O）分析，发现大港沥青质上吸附了一定量的卟啉钒化合物。沥青质对卟啉钒的吸附过程受到沥青质的加入量（0.010 0和0.020 0 g）、戊烷溶液中初始卟啉钒的浓度（10和15 μg/mL）以及吸附温度（15、20和25 ℃）等因素的影响。分别采用拟一级、拟二级、Elovich和粒子内扩散等方程对实验数据进行了拟合，结果发现沥青质对卟啉钒的吸附符合拟二级动力学方程。
- 大港沥青质 /
- 卟啉钒 /
- 吸附动力学
Abstract: The adsorption kinetics of vanadyl etioporphyrins on Dagang (DG) asphaltene in n-pentane solvent was investigated. The FT-ICR MS and C/H/N/O element analysis results indicated that a certain amount of vanadyl porphyrins can be adsorbed by the DG asphaltene, proving the interactions present between vanadium porphyrins and DG asphaltene. The adsorption process is influenced by the dosage of asphaltene (0.010 0 and 0.020 0 g), the concentration of vanadyl porphyrins in n-pentane (10 and 15 μg/mL), and the adsorption temperature (15、20 and 25 ℃). The overall adsorption rates are fitted by the pseudo-first order, pseudo-second order, Elovich, and diffusion kinetic models, which suggests that the adsorption process can be well described by the pseudo-second order equation.
- Dagang asphaltene /
- vanadyl porphyrin /
- adsorption kinetics

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参考文献(10)

吴芳青, 王振宇. 重油脱镍、钒的研究进展[J]. 当代石油石化, 2011, (10): 17-22. (WU Fang-qing, WANG Zhen-yu. Research and development of Ni and V removal from heavy oil[J]. Petroleum & Petrochemical Today, 2011, (10): 17-22.)

徐岳峰, 张佩甫, 张同生, 戴琳. 原油中金属杂质的脱除[J]. 炼油设计, 1994, 24(5): 27-31. (XU Yue-feng, ZHANG Pei-fu, ZHANG Tong-sheng, DAI Lin. Removal of metallic impurities in Crudes[J]. Petroleum Refinery Engineering, 1994, 24(5): 27-31.)

隆建, 沈本贤, 赵基钢, 凌昊, 卢俊财. 减压渣油掺炼煤焦油改善常压溶剂脱沥青过程的机理[J]. 石油学报(石油加工), 2012, 28(1): 69-75. (LONG Jian, SHEN Ben-xian, ZHAO Ji-gang, LING Hao, LU Jun-cai. Mechanism of improving atmospheric solvent deasphalting process by vacuum residue blending with coal tar[J]. Acta Petrolei Sinica (Petroleum Processing Section), 2012, 28(1): 69-75.)

孙显锋, 孙学文, 许志明, 赵锁奇, 徐春明. 辽河稠油减渣深度戊烷脱沥青的研究[J]. 燃料化学学报, 2010, 38(5): 565-570. (SUN Xian-feng, SUN Xue-wen, XU Zhi-ming, ZHAO Suo-qi, XU Chun-ming. Solvent deep deasphalting of Liaohe heavy oil vacuum residuum[J]. Journal of Fuel Chemistry and Technology, 2010, 38(5): 565-570.)

高媛媛, 沈本贤, 刘纪昌. 委内瑞拉原油中钒卟啉的分离和鉴定[J]. 石油学报(石油加工), 2011, 27(1): 101-106. (GAO Yuan-yuan, SHEN Ben-xian, LIU Ji-chang. Isolation and characterization of vanadium porphyrins in venezuela crude oil[J]. Acta Petrolei Sinica (Petroleum Processing Section), 2011, 27(1): 101-106.)

ARGUN M E, DURSUN S, OZDEMIR C, KARATAS M. Heavy metal adsorption by modified oak sawdust: Thermodynamics and kinetics[J]. J Hazard Mater, 2007, 141(1): 77-85.

柏静儒, 王擎, 秦宏, 郑国宽, 杨迎军. 油页岩飞灰对重金属离子的吸附动力学及热力学[J]. 燃料化学学报, 2011, 39(5): 378-384. (BAI Jing-ru, WANG Qing, QIN Hong, ZHENG Guo-kuan, YANG Ying-jun, GUAN Xiao-hui. Kinetics and thermodynamics of adsorption of heavy metal ions onto fly ash from oil shale[J]. Journal of Fuel Chemistry and Technology, 2011, 39(5): 378-384.)

PIMENTEL P M, MELO M A F, MELO D M A, ASSUNCAO A L C, HENRIQUE D M, SILVA C N, GONZALEZ G. Kinetics and thermodynamics of Cu(Ⅱ) adsorption on oil shale wastes[J]. Fuel Process Technol, 2008, 89(1): 62-67.

SEN G S, BHATTACHARYYA K G. Adsorption of Ni(Ⅱ) on clays[J]. J Colloid Int Sci, 2006, 295(1): 21-32.

WEN J, HAN X, LIN H F, ZHENG Y, CHU W. A critical study on the adsorption of heterocyclic sulfur and nitrogen compounds by activated carbon: Equilibrium, kinetics and thermodynamics[J]. Chem Eng J, 2010, 164(1): 29-36.

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