• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>European biomass conference and exhibition;ETA-Florence Renewable Energies >LOW-TEMPERATURE FISCHER-TROPSCH SYNTHESIS WITH CARBON-SUPPORTED NANOMETRIC IRON-COBALT CATALYSTS
【24h】

LOW-TEMPERATURE FISCHER-TROPSCH SYNTHESIS WITH CARBON-SUPPORTED NANOMETRIC IRON-COBALT CATALYSTS

机译：碳负载纳米铁钴催化剂的低温费-托合成

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

Marketable fuel production from biomass through Fischer-Tropsch synthesis (FTS) process is the mainrnobjective of this work. Today, there is need for higher performance FTS catalysts that will lead to sustainablernproduction of biofuels because of the global escalating energy prices, developing environmental concerns and morernstringent legislation, particularly the push towards sulphur-free diesel. By developing efficient non-porous catalysts inrnthe nanometric range, operating in the diffusion-controlled 3-phase FTS regime is avoided; this is a must in thisrndirection and constitutes an experimentally proven choice. Potential carbon-supported bimetallic formulations basedrnon iron and cobalt, synthesised by plasma-spray method were produced and tested as FTS nanocatalysts in arncontinuously-stirred slurry tank reactor (CSSTR) at 260℃, 20-bar pressure and gas hourly specific velocity (GHSV)rnof 3,600 ml.g~(-1).h~(-1) for 24 h. Three catalytic formulations tested were: 30%Co-70%Fe, 50%Co-50%Fe, and 80%Co-rn20%Fe. Their analysis by Transmission Electron Microscopy (TEM) indicated an average particle size of 9.1, 14.4rnand 8.9 nm, and BET specific surface areas of 89, 89 and 65 m~2.g~(-1) respectively. Overall, the materials showedrncomparable selectivity of ~76% towards the production of C_5-C_(22) (petrol + diesel fractions), but catalyst activityrndecreased in the order of 30%Co-70%Fe 80%Co-20%Fe > 50%Co-50%Fe, with carbon monoxide (CO)rnconversions of 50, 42 and 35% respectively after 24 h on stream.
机译：这项工作的主要目的是通过费托合成（FTS）过程从生物质生产可销售的燃料。如今，由于全球不断上涨的能源价格，对环境的担忧和更严格的法规，尤其是向无硫柴油的推动，需要更高性能的FTS催化剂，以可持续地生产生物燃料。通过开发在纳米范围内的有效无孔催化剂，避免了在扩散控制的三相FTS方案中操作；这是必须的，并且是经过实验证明的选择。制备了通过等离子喷涂法合成的潜在的碳基双铁和钴钴双金属配位剂，并在260℃，20 bar压力和气时比速（GHSV）下，在不连续搅拌的淤浆罐反应器（CSSTR）中作为FTS纳米催化剂进行了测试。 rnof 3600 ml.g〜（-1）.h〜（-1）24小时。测试的三种催化配方为：30％Co-70％Fe，50％Co-50％Fe和80％Co-n-20％Fe。通过透射电子显微镜（TEM）进行的分析表明，平均粒径为9.1、14.4nm和8.9 nm，BET比表面积分别为89、89和65 m〜2.g〜（-1）。总体而言，该材料对C_5-C_（22）（汽油+柴油馏分）的生产显示出〜76％的可选择性，但催化剂活性按30％Co-70％Fe >> 80％Co-20％Fe的顺序降低> 50％Co-50％Fe，投运24小时后一氧化碳（CO）的转化率分别为50％，42％和35％。

著录项

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