...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Dalton transactions: An international journal of inorganic chemistry >Synthesis of sub-micrometric SAPO-34 by a morpholine assisted two-step hydrothermal route and its excellent MTO catalytic performance
【24h】

Synthesis of sub-micrometric SAPO-34 by a morpholine assisted two-step hydrothermal route and its excellent MTO catalytic performance

机译：由吗啉辅助两步水热途径合成亚微米SAPO-34及其优异的MTO催化性能

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

SAPO-34 with a sub-micrometer crystal size was synthesized by a double hydrothermal treatment employing cost-effective morpholine as a structure directing agent, which presented an enhanced catalytic lifetime (nearly 3 times the conventional one) in the reaction of methanol to olefins with a higher light olefin selectivity (total selectivity of 97.1%). Detailed studies of the sample after different time intervals in the second crystallization with and without additional morpholine were carried out, which offered insight into crystal degradation and re-crystallization phenomena. The samples with different morpholine concentrations during the second hydrothermal treatment were also prepared, in which the sample with 80% MOR aqueous solution exhibited the smallest crystal size and the longest MTO lifetime. Furthermore, the investigation on the additional amount of mother liquor (from the first crystallization) required for the second crystallization showed that the presence of half the amount of the mother liquor (nutrients) could give us the required results effectively.
机译：SAPO-34具有亚微米的晶体尺寸是通过采用成本效益的吗啉，其结构定向剂，其中提出在甲醇的反应的增强的催化寿命（近3倍常规之一）为烯烃与双水热处理合成更高的烯烃选择性（总选择性为97.1％）。进行了在第二结晶中的不同时间间隔后的样品的详细研究进行了，并进行了额外的吗啉，这提供了对晶体降解和再结晶现象的洞察力。还制备了在第二水热处理期间具有不同吗啉浓度的样品，其中具有80％MOR水溶液的样品表现出最小的晶体尺寸和最长的MTO寿命。此外，对第二结晶所需的额外母液（来自第一结晶）的额外量的研究表明，母液（营养物质）的一半的存在可以有效地给予我们所需的结果。

著录项

  • 来源
  • 作者

    Bakhtiar Syed ul Hasnain; Ali Sher; Wang Xiaotong; Yuan Fulong; Li Zhibin; Zhu Yujun;

  • 作者单位

    Heilongjiang Univ Sch Chem &

    Mat Sci Minist Educ Key Lab Funct Inorgan Mat Chem Harbin 150080 Heilongjiang Peoples R China;

    Heilongjiang Univ Sch Chem &

    Mat Sci Minist Educ Key Lab Funct Inorgan Mat Chem Harbin 150080 Heilongjiang Peoples R China;

    Heilongjiang Univ Sch Chem &

    Mat Sci Minist Educ Key Lab Funct Inorgan Mat Chem Harbin 150080 Heilongjiang Peoples R China;

    Heilongjiang Univ Sch Chem &

    Mat Sci Minist Educ Key Lab Funct Inorgan Mat Chem Harbin 150080 Heilongjiang Peoples R China;

    Heilongjiang Univ Sch Chem &

    Mat Sci Minist Educ Key Lab Funct Inorgan Mat Chem Harbin 150080 Heilongjiang Peoples R China;

    Heilongjiang Univ Sch Chem &

    Mat Sci Minist Educ Key Lab Funct Inorgan Mat Chem Harbin 150080 Heilongjiang Peoples R China;

  • 收录信息
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 化学;无机化学;
  • 关键词

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号