| 硼酸铵型催化裂化钝镍剂的工业应用及其钝化机理 |
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| 引用本文： | 叶天旭,潘惠芳.硼酸铵型催化裂化钝镍剂的工业应用及其钝化机理[J].应用化学,2002,19(1):34-0. |
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| 作者姓名： | 叶天旭 潘惠芳 |
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| 作者单位： | 石油大学 |
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| 基金项目： | 中国石油天然气集团公司“九五”科技攻关项目 ( ( 96 )科字第 198号 ) |
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| 摘 要： | 钝化剂;硼酸铵;硼酸铵型催化裂化钝镍剂的工业应用及其钝化机理
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| 关 键 词： | 钝化剂 硼酸铵 硼酸铵型催化裂化钝镍剂的工业应用及其钝化机理 |
| 文章编号： | 1000-0518(2002)01-0034-04 |
| 收稿时间： | 2009-06-29 |
| 修稿时间： | 2001年5月24日 |
Mechanism of Ammonium Borate in Passivation of Nickel and Its Application in FCC |
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| YE Tian-Xu.Mechanism of Ammonium Borate in Passivation of Nickel and Its Application in FCC[J].Chinese Journal of Applied Chemistry,2002,19(1):34-0. |
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| Authors: | YE Tian-Xu |
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| Affiliation: | YE Tian-Xu * |
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| Abstract: | A non-toxic ammonium borate containing mixture(named BPN) was found to decrease the yields of hydrogen and coke by 35% and 10%, respectively, and increase the yield of gasoline by 1 2%. The passivating mechanism of BPN has been investigated by MAT, TPR, TPD and XRD techniques with simultaneous quantum chemistry calculation. The results showed that Ni 2B 2O 5 was formed in addition of BPN to Ni-deposited zeolite under the condition of FCC regeneration. Ni 2B 2O 5 is more difficult to be reduced than NiO under the condition of FCC reaction due to the much higher LUMO energy than that in NiO. The dehydrogenation activity of Ni 0 is thus to be inhibited. |
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| Keywords: | fluid catalytic cracking(FCC) passivator nickel ammonium borate |
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