• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>Frontier of nanoscience and technology II >Synthesis and Properties of ZSM-5/MCM-41 Composite Zeolite with a Core-shell Structure for Cracking of Supercritical n-dodecane
【24h】

Synthesis and Properties of ZSM-5/MCM-41 Composite Zeolite with a Core-shell Structure for Cracking of Supercritical n-dodecane

机译：ZSM-5 / MCM-41核-壳结构复合沸石的合成及性能对超临界正十二烷的裂解作用

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

A set of ZSM-5/MCM-41 composite zeolite were synthesized hydrothermally with CTAB as a template and ZSM-5 zeolite as a silica source.XRD patterns of ZSM-5/MCM-41zeolites contain the characteristic peaks both of ZSM-5 and MCM-41.TEM images show that ZSM-5 zeolite surface was covered with a MCM-41 thin layer varying the thickness with the crystallization time.The BET specific surface area of the composite zeolite increased with increasing the NaOH concentration up to a maximum at 1.5 M,followed by decreased as the NaOH concentration was increased.Catalytic tests were carried out in a tubular reactor coated with the zeolite on its inner wall at 550℃ and 4 MPa.The ZSM-5/MCM-41 zeolite with a core-shell structure exhibited a higher conversion of supercritical n-dodecane cracking compared to ZSM-5.
机译：以CTAB为模板，ZSM-5分子筛为硅源水热合成了ZSM-5 / MCM-41分子筛.ZSM-5 / MCM-41分子筛的XRD图谱均包含ZSM-5和MSM-41的特征峰。 MCM-41.TEM图像显示ZSM-5沸石表面覆盖着随结晶时间变化厚度而变化的MCM-41薄层，复合沸石的BET比表面积随NaOH浓度增加到最大1.5 M，其后随着NaOH浓度的增加而降低。在550℃和4 MPa的内壁涂有沸石的管式反应器中进行了催化试验。ZSM-5/ MCM-41核芯沸石与ZSM-5相比，壳结构具有更高的超临界正十二烷裂解转化率。

著录项

  • 来源
  • 会议地点 HongKong(HK)
  • 作者

    Jindan Na; Guozhu Liu; Meiling Ji; Xuesong Ma; Shenlin Hu; Li Wang;

  • 作者单位

    Key Laboratory of Green Chemical Technology of Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China;

    Key Laboratory of Green Chemical Technology of Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China;

    Key Laboratory of Green Chemical Technology of Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China;

    Science and Technology on Scramjet Laboratory, Beijing 100074, China;

    Science and Technology on Scramjet Laboratory, Beijing 100074, China;

    Key Laboratory of Green Chemical Technology of Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China;

  • 会议组织
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 特种结构材料;
  • 关键词

    ZSM-5/MCM-41 zeolite; Core-shell; structures; Cracking; Alkaline treatment; Crystallization;

    机译：ZSM-5 / MCM-41沸石;核-壳;结构;开裂;碱处理;结晶;

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