| 改性USY型催化裂化催化剂提高氢转移性能的研究 |
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| 引用本文： | 陈清,沈本贤,谈晨刚. 改性USY型催化裂化催化剂提高氢转移性能的研究[J]. 华东理工大学学报(自然科学版), 2005, 31(4): 438-441,455 |
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| 作者姓名： | 陈清 沈本贤 谈晨刚 |
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| 作者单位： | 华东理工大学化工学院,上海,200237;华东理工大学化工学院,上海,200237;华东理工大学化工学院,上海,200237 |
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| 基金项目： | 中国石油化工集团公司资助项目(No.103139) |
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| 摘 要： | 通过考察稀土元素铈、镧和磷对USY型催化裂化催化剂改性所引起的基质和分子筛表面酸性的变化,研究了引入铈、镧和磷对催化裂化活性和氢转移性能的影响。结果表明稀土元素的引入可以增加基质和分子筛表面酸量,提高催化活性和氢转移性能,但焦炭产率也随之增加;磷的引入可改善基质和分子筛表面酸性,减少强酸量,增加弱酸量,抑制焦炭的产生。
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| 关 键 词： | 稀土 磷 氢转移 催化裂化 |
| 文章编号： | 1006-3080（2005）04-0438-04 |
| 收稿时间： | 2004-08-09 |
| 修稿时间： | 2004-08-09 |
Influence of Modification of Fluid Catalytic Cracking FCC Catalyst on the Performance of Hydrogen Transfer |
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| CHEN Qing,SHEN Ben-xian,TAN Chen-gang. Influence of Modification of Fluid Catalytic Cracking FCC Catalyst on the Performance of Hydrogen Transfer[J]. Journal of East China University of Science and Technology, 2005, 31(4): 438-441,455 |
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| Authors: | CHEN Qing SHEN Ben-xian TAN Chen-gang |
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| Affiliation: | CHEN Qing~*,SHEN Ben-xian,TAN Chen-gang |
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| Abstract: | The USY fluid catalytic cracking catalyst was modified by Ce_2O_3, La_2O_3 and P_2O_5 for changing acidic properties of the matrix and zeolite to improve the performance of catalytic cracking and hydrogen transfer. The introduction of rare earth increased acid amount of the matrix and zeolite, and promoted catalytic cracking reaction and hydrongen transfer reaction, but high content of rare earth also promoted the producing of coke. The addition of phosphorous optimized the acidic properties of the matrix and zeolite, by decreasing the amount of stronger acid and increasing the amount of weaker acid to obtain the low coke yield while promoting hydrongen transfer reaction. |
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| Keywords: | rare earth phosphorous hydrongen transfer catalytic cracking |
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