• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Fuel >SAPO-34 zeolite encapsulated Fe3C nanoparticles as highly selective Fischer-Tropsch catalysts for the production of light olefins
【24h】

SAPO-34 zeolite encapsulated Fe3C nanoparticles as highly selective Fischer-Tropsch catalysts for the production of light olefins

机译：SAPO-34沸石包裹的Fe3C纳米颗粒作为用于生产轻质烯烃的高选择性费托催化剂

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 tailor-made encapsulated catalyst with SAPO-34 zeolite shell has been synthesized over Fe3C nanoparticles to form a core-shell structure via surface modification of Si-OH groups. The core-shell structure catalyst Fe/C@Si-SAPO are investigated via Fischer-Tropsch synthesis to evaluate their catalytic performance on the direct synthesis of light olefins from syngas. In comparison with the simple mixing structure of the traditional mixture catalyst, the special core-shell of this SAPO-34 zeolite capsule catalyst has an obvious confinement effect on the controlled synthesis of light olefins from syngas. Interestingly, it gives a completely different product distribution from the traditional mixture catalyst and the formation of C6+ hydrocarbons is completely suppressed. In addition, the Fe/C@Si-SAPO catalyst promoted by K were found to decrease the methane selectivity, increase the olefin/paraffin ratio and shift the product selectivity to light olefins during FTS. (C) 2017 Elsevier Ltd. All rights reserved.
机译：通过在Fe3C纳米粒子上合成了具有SAPO-34分子筛壳的定制封装催化剂，通过Si-OH基团的表面修饰形成核-壳结构。通过费-托合成研究了核-壳结构催化剂Fe / C @ Si-SAPO，以评估其对由合成气直接合成轻烯烃的催化性能。与传统混合催化剂的简单混合结构相比，这种SAPO-34分子筛催化剂的特殊核壳对合成气中轻烯烃的可控合成有明显的限制作用。有趣的是，它提供了与传统的混合催化剂完全不同的产物分布，并且完全抑制了C6 +烃的形成。另外，发现在FTS中，由K促进的Fe / C @ Si-SAPO催化剂降低了甲烷的选择性，增加了烯烃/链烷烃的比例，并使产物的选择性转化为轻质烯烃。 （C）2017 Elsevier Ltd.保留所有权利。

著录项

  • 来源
    《Fuel》 |2017年第1期|811-816|共6页
  • 作者

    Qiu Tao; Wang Li; Lv Shuai; Sun Buli; Zhang Yuhua; Liu Zhongneng; Yang Weimin; Li Jinlin;

  • 作者单位

    South Cent Univ Nationalities, State Ethn Affairs Commiss, Key Lab Catalysis & Mat Sci, Wuhan 430074, Peoples R China|South Cent Univ Nationalities, Coll Chem & Mat Sci, Minist Educ, Wuhan 430074, Peoples R China;

    South Cent Univ Nationalities, State Ethn Affairs Commiss, Key Lab Catalysis & Mat Sci, Wuhan 430074, Peoples R China|South Cent Univ Nationalities, Coll Chem & Mat Sci, Minist Educ, Wuhan 430074, Peoples R China;

    South Cent Univ Nationalities, State Ethn Affairs Commiss, Key Lab Catalysis & Mat Sci, Wuhan 430074, Peoples R China|South Cent Univ Nationalities, Coll Chem & Mat Sci, Minist Educ, Wuhan 430074, Peoples R China;

    South Cent Univ Nationalities, State Ethn Affairs Commiss, Key Lab Catalysis & Mat Sci, Wuhan 430074, Peoples R China|South Cent Univ Nationalities, Coll Chem & Mat Sci, Minist Educ, Wuhan 430074, Peoples R China;

    South Cent Univ Nationalities, State Ethn Affairs Commiss, Key Lab Catalysis & Mat Sci, Wuhan 430074, Peoples R China|South Cent Univ Nationalities, Coll Chem & Mat Sci, Minist Educ, Wuhan 430074, Peoples R China;

    Sinopec Shanghai Res Inst Petrochem Technol, Shanghai 201208, Peoples R China;

    Sinopec Shanghai Res Inst Petrochem Technol, Shanghai 201208, Peoples R China;

    South Cent Univ Nationalities, State Ethn Affairs Commiss, Key Lab Catalysis & Mat Sci, Wuhan 430074, Peoples R China|South Cent Univ Nationalities, Coll Chem & Mat Sci, Minist Educ, Wuhan 430074, 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

    Core-shell structure; Fischer-Tropsch synthesis; Light olefins; SAPO-34;

    机译：核-壳结构;费-托合成;轻质烯烃;SAPO-34;

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