|本期目录/Table of Contents|

[1]王辰晨,樊红超,宗鹏,等.稀土改性SAPO-11分子筛及其异构化性能[J].石化技术与应用,2022,3:177-181.
　WANG Chen-chen,FAN Hong-chao,ZONG Peng,et al.Rare earth modification of SAPO-11 molecular sieve and its isomerization performance[J].Petrochemical technology & application,2022,3:177-181.
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稀土改性SAPO-11分子筛及其异构化性能(PDF)

《石化技术与应用》[ISSN:1009-0046/CN:62-1138/TQ]

期数:
2022年3期
页码:
177-181
栏目:
出版日期:
2022-05-10

文章信息/Info

Title:
Rare earth modification of SAPO-11 molecular sieve and its isomerization performance
文章编号:
1009-0045（2022）03-0177-05
作者:
王辰晨1; 樊红超1; 宗鹏2; 刘智辉1; 王漫云1; 翟佳宁1
1.中国石油石油化工研究院 兰州化工研究中心，甘肃 兰州 730060；　　　　　　　2.中国石油兰州寰球工程有限公司，甘肃 兰州 730060
Author(s):
WANG Chen-chen1; FAN Hong-chao1; ZONG Peng2; LIU Zhi-hui1; WANG Man-yun1; ZHAI Jia-ning1
1.Lanzhou Petrochemical Research Center，Petrochemical Research Institute，PetroChina，Lanzhou 730060，China； 2.Lanzhou Huanqiu Contracting & Engineering Co Ltd，PetroChina，Lanzhou 730060，China
关键词:
SAPO-11分子筛; 稀土改性; 催化裂化; 异构化; 汽油; 辛烷值
Keywords:
SAPO-11 molecular sieve; rare earth modification; fluid catalytic cracking;  isomerization; gasoline;  octane number
分类号:
TE 624.9+5
DOI:
DOI：10.19909/j.cnki.ISSN1009-0045.2022.02.0098
文献标识码:
B
摘要:
采用过量溶液浸渍法，以硝酸镧为改性剂，对SAPO-11分子筛进行了稀土改性。结果表明：与未改性SAPO-11分子筛相比，改性后La/SAPO-11分子筛颗粒完整，具有较高的结晶度，介孔比表面积和介孔孔体积均增加，水热稳定性明显改善；在分子筛加入质量分数为6%的条件下，与ZSM-5分子筛相比，在La/SAPO-11（负载La质量分数为4%）分子筛制备的催化裂化（FCC）催化剂生产的产物中，汽油收率（质量分数，下同）与轻质油收率分别提高了0.34，0.24个百分点，汽油研究法辛烷值增加了0.5个单位；由该分子筛制备的FCC催化剂催化性能提高，异构化性能明显增强。
Abstract:
SAPO-11 molecular sieve was modified with rare earth elements by excess solution impregnation method with lanthanum nitrate as modifier. The results showed that compared with unmodified SAPO-11 molecular sieve，the modified La/SAPO-11 molecular sieve had showed more complete particles and higher crystallinity，higher mesoporous specific surface area and mesoporous volume， and its hydrothermal stability was significantly improved. Compared with catalyst prepared with ZSM-5 molecular sieve，the gasoline yield and light oil yield of the fluid catalytic cracking（FCC） catalyst prepared by La/SAPO-11（La load mass fraction of 4%） molecular sieve，had increased by 0.34 and 0.24 percentage points respectively，and the RON had increased by 0.5 units when the mass fraction of both mentioned molecular sieves in catalysts was 6%. The FCC catalyst containing the modified above prepared molecular sieve had exhibited higher catalytic performance and better isomerization performance.

参考文献/References

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备注/Memo

备注/Memo:
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更新日期/Last Update: 2022-05-10