[1]于政敏,陈玉晶,于涛,等.核壳质量比对β@SBA-15复合分子筛加氢裂化性能的影响[J].石化技术与应用,2024,4:247-251.
YU Zheng-min,CHEN Yu-jing,YU Tao,et al.Effect of mass ratio of shell to core on hydrocracking performance of β@SBA-15 composite zeolite[J].Petrochemical technology & application,2024,4:247-251.
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核壳质量比对β@SBA-15复合分子筛加氢裂化性能的影响(PDF)
《石化技术与应用》[ISSN:1009-0046/CN:62-1138/TQ]
- 期数:
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2024年4期
- 页码:
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247-251
- 栏目:
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- 出版日期:
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2024-07-10
文章信息/Info
- Title:
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Effect of mass ratio of shell to core on hydrocracking performance of β@SBA-15 composite zeolite
- 文章编号:
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1009-0045(2024)04-0247-05
- 作者:
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于政敏; 陈玉晶; 于涛; 孙晓艳; 樊宏飞
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中国石化(大连)石油化工研究院有限公司,辽宁 大连 116045
- Author(s):
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YU Zheng-min; CHEN Yu-jing; YU Tao; SUN Xiao-yan; FAN Hong-fei
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Dalian Research Institute of Petroleum and Petrochemicals, SINOPEC, Dalian 116045, China
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- 关键词:
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β分子筛; SBA-15分子筛; 核壳结构; 加氢裂化
- Keywords:
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β zeolite; SBA-15 zeolite; core-shell structure; hydrocracking
- 分类号:
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TQ 426.95
- DOI:
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DOI:10.19909/j.cnki.ISSN1009-0045.2024.04.0247
- 文献标识码:
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B
- 摘要:
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制备一系列不同核壳质量比(以下简称核壳比)的β@SBA-15复合分子筛,并对复合分子筛壳层材料进行酸性位的构建,以构建酸性位后的β@AlSBA-15复合分子筛为主要裂化组分制备催化剂,考察复合分子筛核壳比对催化剂加氢裂化性能的影响,并在200 mL固定床反应装置上对催化剂进行性能评价。结果表明:β@SBA-15复合分子筛的最佳核壳比为6∶4,高核壳比合成的复合分子筛核壳结构不完整,低核壳比会导致合成的复合分子筛分相严重。以中东减压蜡油为原料,在相近转化率条件下,当核壳比为6∶4时,催化剂的加氢裂化性能最优,中间馏分油选择性最高(84.9%),航空煤油馏分冰点和柴油馏分凝点最低,分别为-61,-5 ℃。
- Abstract:
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A series of β@ SBA-15 composite zeolites with different mass ratio of shell to core(hereinafter referred to as core-shell ratio) were prepared, and the acidic sites were constructed in the shell material. After acidic sites were constructed, β@AlSBA-15 composite zeolite was used as the main cracking component to prepare catalyst, and the effect of the core-shell ratio of the composite zeolite on the hydrocracking performance of the catalyst was investigated on 200 mL fixed bed reactor. The results showed that the optimal core-shell ratio for composite zeolite was 6∶4. A high core-shell ratio could result in incomplete core-shell structure, while a low core-shell ratio could lead to separated phase. Under similar conversion rate conditions with Middle East vacuum gas oil as raw material, the β@SBA-15 composite zeolite with a core-shell ratio of 6∶4 showed the best hydrocracking performance,the highest selectivity to middle distillate oil (84.9%), the lowest freezing point of jet oil and the lowest freezing point of diesel at -61 ℃ and -5 ℃ respectively.
参考文献/References
[1] Deng Y H, Deng C H, Qi D W, et al. Synthesis of core/shell colloidal magnetic zeolite microspheres for the immobilization of trypsin[J]. Advanced Materials, 2009, 21:1377-1382.[2] Qian X F, Li B, Hu Y Y, et al.Exploring meso-microporous composite molecular sieves with core-shell structures[J]. Chemistry (A European Journal), 2012,18:931-939.[3] Jia L X, Sun X Y, Ye X Q, et al. Core-shell composites of USY @ mesosilica: Synthesis and application in cracking heavy molecules with high liquid yield [J]. Microporous and Mesoporous Materials, 2013, 176:16-24.[4] 于政敏,陈玉晶,孙晓艳,等. FC-38 单段高中油型加氢裂化催化剂的首次工业应用[J]. 安徽化工, 2022, 48(3):91-94.[5] 陈玉晶,于政敏,孙晓艳,等. 微@介孔复合分子筛在加氢裂化领域的工业应用[J]. 当代化工研究, 2022(11):70-74.[6] Yue Y H, Antoine G. Direct synthesis of AlSBA mesoporous molecular sieves: Characterization and catalytic activities[J]. Chem Commun, 1999, 19:1967-1968.[7] 朱金剑, 王继锋, 孙晓艳,等. Al-SBA-15制备方法对Al-SBA-15/USY复合分子筛加氢裂化催化剂性能的影响[J]. 石油炼制与化工, 2012, 43(3):28-32.[8] 于政敏,陈玉晶,孙晓艳,等. 壳/核比例对复合分子筛加氢裂化性能的影响[J]. 精细石油化工, 2022, 39(6):33-38.
备注/Memo
- 备注/Memo:
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国家自然科学基金资助项目(项目编号:22088101)
更新日期/Last Update:
2024-07-10