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[1]马月谦,董科军,夏继平*.γ-Al2O3载体的水热合成及其加氢性能[J].石化技术与应用,2024,3:177-180.
 MA Yue-qian,DONG Ke-jun,XIA Ji-ping.Hydrothermal synthesis of γ-Al2O3 support and its hydrogenation performance[J].Petrochemical technology & application,2024,3:177-180.
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γ-Al2O3载体的水热合成及其加氢性能(PDF)

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

期数:
2024年3期
页码:
177-180
栏目:
出版日期:
2024-05-10

文章信息/Info

Title:
Hydrothermal synthesis of γ-Al2O3 support and its hydrogenation performance
文章编号:
1009-0045(2024)03-0177-04
作者:
马月谦董科军夏继平*
中国海油天津化工研究设计院有限公司,天津 300131
Author(s):
MA Yue-qianDONG Ke-junXIA Ji-ping
Tianjin Chemical Research and Design Institute Limited Company,CNOOC,Tianjin 300131,China
关键词:
碳酸铝铵拟薄水铝石γ-Al2O3水热反应加氢精制催化剂脱硫脱氮性能
Keywords:
ammonium aluminum carbonate hydroxidepseudo-boehmiteγ-Al2O3hydrothermal reactionhydrofining catalystdesulfurization and denitrification performance
分类号:
TQ 133.1;TQ 426.65
DOI:
DOI:10.19909/j.cnki.ISSN1009-0045.2024.03.0177
文献标识码:
B
摘要:
以ρ-Al2O3和NH4HCO3为原料,采用水热法合成出γ-Al2O3的前驱体碳酸铝铵(AACH),考察了原料配比和反应时间对合成产物的影响,利用X射线衍射仪、物理吸附分析仪、化学吸附仪对2种不同前驱体制得的载体进行表征,并对2种载体制得的催化剂进行了加氢脱硫脱氮性能评价。结果表明:在n(HCO3-)/n(Al3+)为1.5∶1.0,100 ℃反应14 h下制得具有棒状结构、结晶度较好的AACH;相比由传统拟薄水铝石制得的载体,由AACH制得的载体具有较高比表面积和大孔容,有效孔径(4~10 nm)的孔容占比更高,且利于反应进行的中强酸更多,且所制备催化剂的脱硫脱氮活性更佳。
Abstract:
Ammonium aluminum carbonate hydroxide(AACH) as the precursor of γ-Al2O3 was hydrothermally synthesized from ρ-Al2O3 and ammonium bicarbonate. The influences of reactants ratio and reaction time on the synthetic product were investigated. Supports obtained from two different precursor samples were characterized by X-ray diffractometer, physical adsorption analyzer, and chemical adsorption analyzer. The hydrodesulfurization and hydrodenitrification performance of corresponding catalysts were evaluated. The results showed that rod-like AACH with high crystallinity could be synthesized under the condition of the HCO3- to Al3+ mole ratio of 1.5∶1.0 at 100 ℃ for 14 h. Compared with the support prepared by traditional pseudo boehmite, the support prepared by AACH had higher specific surface area and larger pore volume, the proportion of pore volume with effective pore size (4-10 nm) was higher, and more medium-strong acid was conducive to the reaction. And the desulfurization and denitrification activity of the prepared catalyst was better.

参考文献/References

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备注/Memo

备注/Memo:
中国海洋石油集团有限公司资助项目(项目编号:KJGG-2022-12-CCUS-030403)
更新日期/Last Update: 2024-05-10