• 综合
  • 标题
  • 关键词
  • 摘要
  • 学者
  • 期刊-刊名
  • 期刊-ISSN
  • 会议名称
搜索

作者:

Karimi, Shahla (Karimi, Shahla.) | Meshkani, Fereshteh (Meshkani, Fereshteh.) | Rezaei, Mehran (Rezaei, Mehran.) | Rastegarpanah, Ali (Rastegarpanah, Ali.)

收录:

EI Scopus SCIE

摘要:

The supported Ni catalysts on the magnesium silicate were synthesized via a co-precipitation method using urea. The influences of several factors such as time of urea decomposition (6–24 h), urea concentration (0.25–1 M), calcination temperature (600–800 °C), and the type of the surfactant (PVA and PEG) on the textural attributes and catalytic performance of the catalysts were investigated in details. XRD, BET, SEM, H2-TPR, and TPO were performed for synthesized catalysts characterization. The results showed that the variation of process factors led to significant changes in the surface properties of samples and resulted in the different catalytic performance in this reaction. With increasing the time of urea decomposition from 6 h to 24 h, urea concentration from 0.25 M to 1 M, and calcination temperature from 600 °C to 800 °C, the Ni/SiO2.MgO catalyst showed a decrease in surface area and good thermal stability. In particular, the best performance sample was obtained; the one with decomposition time of 24 h, the urea concentration of 0.5 M and the catalyst calcination temperature of 700 °C, with the specific area of 223.8 m2.g−1, and the methane conversion of 67% at GHSV of 24000 mL.h−1.gcat−1 and 600 °C. © 2020

关键词:

Magnesium compounds Metabolism Silicates Urea Surface active agents Precipitation (chemical) Catalysts Nickel compounds Calcination

作者机构:

  • [ 1 ] [Karimi, Shahla]Catalyst and Advanced Materials Research Laboratory, Chemical Engineering Department, Faculty of Engineering, University of Kashan, Kashan, Iran
  • [ 2 ] [Meshkani, Fereshteh]Catalyst and Advanced Materials Research Laboratory, Chemical Engineering Department, Faculty of Engineering, University of Kashan, Kashan, Iran
  • [ 3 ] [Meshkani, Fereshteh]Institute of Nanoscience and Nanotechnology, University of Kashan, Kashan, Iran
  • [ 4 ] [Rezaei, Mehran]School of Chemical, Petroleum and Gas Engineering, Iran University of Science and Technology (IUST), Tehran, Iran
  • [ 5 ] [Rastegarpanah, Ali]Beijing Key Laboratory for Green Catalysis and Separation, Key Laboratory of Beijing on Regional Air Pollution Control, Laboratory of Catalysis Chemistry and Nanoscience, Department of Chemistry and Chemical Engineering, College of Environmental and Energy Engineering, Beijing University of Technology, Beijing; 100124, China

通讯作者信息:

  • [meshkani, fereshteh]catalyst and advanced materials research laboratory, chemical engineering department, faculty of engineering, university of kashan, kashan, iran;;[meshkani, fereshteh]institute of nanoscience and nanotechnology, university of kashan, kashan, iran

电子邮件地址:

查看成果更多字段

相关关键词:

来源 :

Fuel

ISSN: 0016-2361

年份: 2021

卷: 284

7 . 4 0 0

JCR@2022

ESI学科: ENGINEERING;

ESI高被引阀值:87

JCR分区:1

被引次数:

WoS核心集被引频次:

SCOPUS被引频次: 27

ESI高被引论文在榜: 0 展开所有

万方被引频次:

中文被引频次:

近30日浏览量: 3

在线人数/总访问数:1921/4279384
地址:北京工业大学图书馆(北京市朝阳区平乐园100号 邮编:100124) 联系我们:010-67392185
版权所有:北京工业大学图书馆 站点建设与维护:北京爱琴海乐之技术有限公司