摘要：A novel SAPO-11 molecular sieve with a lamellar structure and flower-like morphology was synthesized using cationic surfactant cetyltrimethylammonium bromide (CTAB) as the surfactant and KF as the mineralizer. Meanwhile, the effect of various CTAB additions on the structure and properties of SAPO-11 molecular sieves was also investigated. A number of characterization analyses' findings reveal that, compared with conventional spherical SAPO-11 molecular sieves, flower-like SAPO-11 molecular sieves have the following advantages: (1) Flower-like SAPO-11 molecular sieves have open pores and larger mesopores, with suitable distribution of mesopores. (2) The prepared flower-like SAPO-11 molecular sieves have a lower total acid value but have a higher proportion of Bronsted acid sites, with suitable acidity. (3) The flower-like NiW/SAPO-11 catalysts have better dispersion of WS2 slabs and higher balance and proximity between metal sites and acid sites. The synthesized flower-like NiW/SAPO-11 showed significant isomerization performance and low cracking selectivity during the isomerization of n-hexadecane. When the conversion rate of n-hexadecane reached 77.0%, the yield of i-hexadecane was 59.4%.

ISSN号：0888-5885

卷、期、页：卷: 62期: 16页: 6394-6415

发表日期：2023-04-26

影响因子：0.000000

期刊分区（SCI为中科院分区）：三区

收录情况：SCI（科学引文索引印刷版）,EI（工程索引）,SCIE（科学引文索引网络版）

发表期刊名称：INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH

通讯作者：王晓晗,于志庆,刘昊然,孙劲晓,黄文斌,陶金泉,黄萌

第一作者：周亚松,魏强

论文类型：期刊论文

论文概要：王晓晗,周亚松,于志庆,魏强,刘昊然,孙劲晓,黄文斌,陶金泉,黄萌，Synthesis of Lamellar Structural Flower-like SAPO-11 Molecular Sieves with Hierarchical Pores for Enhanced Selectivity of Isomeric Alkanes in Hydroisomerization，INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH，2023，卷: 62期: 16页: 6394-6415

论文题目：Synthesis of Lamellar Structural Flower-like SAPO-11 Molecular Sieves with Hierarchical Pores for Enhanced Selectivity of Isomeric Alkanes in Hydroisomerization