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首页> 外文期刊>Journal of porous materials >Hydrothermal synthesis of beta zeolite from industrial silica sol as silicon source
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Hydrothermal synthesis of beta zeolite from industrial silica sol as silicon source

机译：从工业二氧化硅溶胶作为硅源的水热合成β沸石

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摘要

The traditional silicon sources for beta zeolite synthesis are solid silica gel, carbon-white or tetraethyl orthosilicate (TEOS), which makes the material cost even higher. Herein, beta zeolite synthesis by hydrothermal method with industrial silica sol as silicon source was investigated. The effects of synthesis conditions on product property were investigated in detail, including template content, crystallization temperature, crystallization time and alkalinity of hydrothermal system. The products properties, such as crystallinity, pore structure, morphology and acid properties were thoroughly characterized by XRD, N-2 adsorption-desorption isotherm, SEM, TEM, Py-FTIR and NH3-TPD. The optimum condition for synthesis of beta zeolite using industrial silica sol as silicon source was finally determined. Compared with commercial beta zeolite, the as-synthesized beta zeolite had higher relative crystallinity, higher total and microporous specific surface area with higher total concentration and B/L ratio of acid sites.
机译：用于β沸石合成的传统硅源是固体硅胶，碳白色或四乙基外硅酸盐（TEOS），这使得材料成本更高。在此，研究了具有工业二氧化硅溶胶作为硅源的水热法的β沸石合成。详细研究了合成条件对产品性质的影响，包括模板含量，结晶温度，水热系统的碱度。通过XRD，N-2吸附 - 解吸等温，SEM，TEM，PY-FTIR和NH3-TPD彻底以结晶度，孔结构，形态和酸性能进行全面地表征产品性质。最后确定使用工业二氧化硅溶胶合成β沸石的最佳条件作为硅源。与商业β沸石相比，AS合成的β沸石具有更高的相对结晶度，更高的总和和微孔的比表面积，具有较高的总浓度和酸性位点的B / L比。

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  • 来源
    《Journal of porous materials》 |2019年第4期|1017-1025|共9页
  • 作者

    Liu Zhen; Zhao Liang; Zhang Tingting; Wang Yu; Xu Yanyan; Komarneni Sridhar; Wang Yi; Liu Xinmei; Yan Zifeng;

  • 作者单位

    China Univ Petr Coll Chem Engn State Key Lab Heavy Oil Proc Key Lab Catalysis CNPC 66 Changjiang West Rd Qingdao 266580 Shandong Peoples R China;

    China Univ Petr Coll Chem Engn State Key Lab Heavy Oil Proc Key Lab Catalysis CNPC 66 Changjiang West Rd Qingdao 266580 Shandong Peoples R China;

    China Univ Petr Coll Chem Engn State Key Lab Heavy Oil Proc Key Lab Catalysis CNPC 66 Changjiang West Rd Qingdao 266580 Shandong Peoples R China;

    China Univ Petr Coll Chem Engn State Key Lab Heavy Oil Proc Key Lab Catalysis CNPC 66 Changjiang West Rd Qingdao 266580 Shandong Peoples R China;

    China Univ Petr Coll Chem Engn State Key Lab Heavy Oil Proc Key Lab Catalysis CNPC 66 Changjiang West Rd Qingdao 266580 Shandong Peoples R China;

    Penn State Univ Mat Res Inst University Pk PA 16802 USA;

    China Univ Petr Coll Chem Engn State Key Lab Heavy Oil Proc Key Lab Catalysis CNPC 66 Changjiang West Rd Qingdao 266580 Shandong Peoples R China|PetroChina Co Ltd Petrochem Res Inst Lanzhou Petrochem Res Ctr Lanzhou 730060 Gansu Peoples R China;

    China Univ Petr Coll Chem Engn State Key Lab Heavy Oil Proc Key Lab Catalysis CNPC 66 Changjiang West Rd Qingdao 266580 Shandong Peoples R China;

    China Univ Petr Coll Chem Engn State Key Lab Heavy Oil Proc Key Lab Catalysis CNPC 66 Changjiang West Rd Qingdao 266580 Shandong Peoples R China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Beta zeolite; Template; Silica sol; Hydrothermal synthesis;

    机译：β沸石;模板;二氧化硅溶胶;水热合成;

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