大孔FCC催化剂的制备及裂化性能研究

刘子媛; 陈胜利; 董鹏

大孔FCC催化剂的制备及裂化性能研究

1.
中国石油大学(华东) 化学工程学院, 山东青岛 266555;
2.
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: 国家重点基础研究发展规划(973计划, 2004CB217808)。

详细信息

通讯作者:
刘子媛(1972-),女,山东郯城人,博士,讲师,主要从事催化剂工程研究,E-mail:liuzy@upc.edu.cn。

中图分类号: O643.36
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- 被引次数: 0
出版历程
- 收稿日期: 2011-11-28
- 修回日期: 2012-03-15
- 刊出日期: 2012-09-29

Preparation of macroporous catalysts and their performance in catalytic cracking of heavy oil

1.
College of Chemistry and Chemical Engineering, China University of Petroleum(East China), Qingdao 266555, China;
2.
State Key Laboratory of Heavy Oil Processing, China University of Petroleum(Beijing), Beijing 102249, China

摘要

摘要: 利用聚苯乙烯(PS)颗粒和脱油残渣(VR)乳液为模板剂制备了大孔重油催化裂化催化剂,与未加模板的参比催化剂相比,比表面积分别增加了38.0%和46.2%,孔体积分别增加了20.6%和35.8%,平均孔径分别增加了54.5%和27.3%。微反评价结果表明,大孔催化剂活性较高,对重油的转化率分别提高了9.8%和12.2%,总液收分别提高了10.2%和7.3%。与参比催化剂相比,积炭后PS颗粒和VR乳液模板大孔催化剂的活性有一定程度的降低,但是当积炭量相同时,大孔催化剂的重油转化率和总液体产物收率都比参比催化剂要高,且两类大孔催化剂的数据比较接近。催化剂的基质经模板扩孔后,由于具有微孔-介孔-大孔的梯度孔分布,孔径分布更加合理,重油分子在催化剂孔道内的扩散速率更快,容炭能力更强,所以大孔催化剂具有较好的裂化性能。
- 聚苯乙烯 /
- 脱油残渣 /
- 大孔 /
- 重油 /
- FCC催化剂
Abstract: Two types of macroporous catalysts were prepared by using polystyrene particles (PS) and de-oiled vacuum residue (VR) as templates; their pore structure and catalytic performance in the catalytic cracking of heavy oil (FCC) were investigated. Compared with the traditional catalyst without using template, two catalysts using the PS and VR templates exhibit an increase of BET surface area by 38.0% and 46.2%, an increase of pore volume by 20.6% and 35.8%, and an increase of average pore size by 54.5 % and 27.3 %, respectively. Meanwhile, the conversions of heavy oil over two catalysts using the PS and VR templates are also increased by 9.8% and 12.2%, and the total liquid yields are increased by 10.2% and 7.3%, respectively, compared with that over the traditional catalyst. After enduring coke deposition in FCC, the activity of the macroporous catalysts was decreased as was expected, but still higher than that of the traditional catalyst at similar situation. The macroporous catalysts own a reasonable pore distribution due to the pore expansion with templates, which promotes the mass transfer in the macropores of the catalysts and provide them with higher tolerance towards coke deposition; these may contribute to their excellent performance in the catalytic cracking of heavy oil.
- polystyrene /
- vacuum residue /
- macroporous /
- heavy oil /
- FCC catalyst

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参考文献(14)

朱华元, 何鸣元, 宋家庆, 张庆. 催化剂的大分子裂化性能与渣油裂化[J]. 炼油设计, 2000, 30(8): 47-51. (ZHU Hua-yuan, HE Ming-yuan, SONG Jia-qing, ZHANG Qing. Reside cracking and bulky molecule cracking abilities of RFCC catalysts [J]. Petroleum Refinery Engineering, 2000, 30(8): 47-51.)

LIU Z, CHEN S, GE X, DONG P, GAO J, XU Z. Measurement of diffusion coefficient of heavy oil in FCC catalysts [J]. Energy Fuels, 2010, 24(5): 2825-2829.

WOLF E H, ALFANI A. Catalyst deactivation by coking [J]. Catal Rev Sci Eng, 1982, 24(3), 329-371.

LAM Y L, SANTOS A D S, RONCOLATTO R E et al. Cracking catalyst composition: US, US 20020165083A1. 2002-11-07.

庞新梅, 孙书红, 赵连鸿,丁伟.一种催化裂化催化剂及其制备方法: 中国, CN02103907. 2002-02-07. (PANG Xin-mei, SUN Shu-hong, ZHAO Lian-hong, DING Wei. A new FCC catalyst and its preparation method: CN, 02103907. 2002-02-07.)

祁彦平, 陈胜利, 董鹏, 徐克琪, 申宝剑. 新型孔结构渣油催化裂化催化剂[J]. 燃料化学学报, 2006, 34(6): 685-689. (QI Yan-ping, CHEN Sheng-li, DONG Peng, XU Ke-qi, SHEN Bao-jian. Novel macroporous residua FCC catalysts [J]. Journal of Fuel Chemistry and Technology, 2006, 34(6): 685-689.)

陈胜利,董鹏,祁彦平,徐克琪.重质油加工大孔催化裂化催化剂合成方法: 中国, 200510082624. 2005-07-06. (CHEN Sheng-li, DONG Peng, QI Yan-ping, XU Ke-qi. Preparation method of macro porous FCC catalyst for heavy oil processing: CN, 200510082624. 2005-07-06.)

CHEN S L, DONG P, XU K, QI Y, WANG D. Large pore heavy oil processing catalysts prepared using colloidal particles as templates[J]. Catal Today, 2007, 125(3/4): 143-148.

QI Y-P, CHEN S-L, DONG P, XU K-Q, SHEN B-J. Novel macroporous residua FCC catalysts[J]. J Fuel Chem Technol, 2006, 34(6): 685-689.

王仁安, 胡云翔, 许志明, 苏桐. 超临界流体萃取分馏法分离石油重质油[J]. 石油学报(石油加工), 1997, 13(1): 53-59. (WANG Ren-an, HU Yun-xiang, XU Zhi-ming, SU Tong. A new fractionating method for heavy oil of petroleum by supercritical fluid extraction and fractionation [J]. Acta Petrolei Sinica ( Petroleum Processing Section), 1997, 13(1): 53 - 59.)

徐克琪. 新型重油催化裂化催化剂的研究[M]. 北京: 中国石油大学,2006. (XU Ke-qi. Research on novel residua FCC catalysts[M]. Beijing: China University of Petroleum, 2006.)

朱洪法. 催化剂载体制备及应用技术 [M]. 北京:石油工业出版社, 2002: 66-67. (ZHU Hong-fa. Preparation and application technology of catalyst support[M]. Beijing: Petroleum Industry Press, 2002: 66-67.)

魏晓丽, 王巍, 张久顺. 催化裂化汽油在催化剂上裂化生焦的研究 [J]. 石油炼制与化工, 2003, 34(6): 5-9. (WEI Xiao-li, WANG Wei, ZHANG Jiu-shun. Study of coke formation on catalysts during FCC naphtha cracking [J]. Petroleum Processing and Petrochemicals, 2003, 34(6): 5-9.)

MAITY S K, ANCHEYTA J, SOBERANIS L, ALONSO F, LLANOS M E. Alumina-titania binary mixed oxide used as support of catalysts for hydrotreating of Maya heavy crude [J]. Appl Catal A, 2003, 244(1): 141-153.

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