Kinetics of CoCu/SiO<sub>2</sub> for synthesis of lower carbon mixed alcohols directly from syngas

SU Junjie; MAO Wei; YANG Zhen; XU Jing; HAN Yifan

doi:10.3969/j.issn.0438-1157.2014.01.018

您当前的位置：

首页 >

文章列表页 >

Kinetics of CoCu/SiO₂ for synthesis of lower carbon mixed alcohols directly from syngas

更新时间：2025-12-10

- Kinetics of CoCu/SiO₂ for synthesis of lower carbon mixed alcohols directly from syngas
- CIESC Journal Issue 1, Pages: 143-151(2014)
- 作者机构：
  
  华东理工大学化学工程联合国家重点实验室,上海,200237
- 作者简介：
- 基金信息：
- DOI：10.3969/j.issn.0438-1157.2014.01.018
  CLC： 643.1
- Online First：05 January 2014，
  
  Published：05 January 2014
- 稿件说明：
移动端阅览
SU Junjie, MAO Wei, YANG Zhen, et al. Kinetics of CoCu/SiO₂ for synthesis of lower carbon mixed alcohols directly from syngas[J]. CIESC Journal, 2014, (1): 143-151. DOI: 10.3969/j.issn.0438-1157.2014.01.018.
DOI：

SU Junjie, MAO Wei, YANG Zhen, et al. Kinetics of CoCu/SiO₂ for synthesis of lower carbon mixed alcohols directly from syngas[J]. CIESC Journal, 2014, (1): 143-151. DOI: 10.3969/j.issn.0438-1157.2014.01.018. DOI：

摘要

由合成气直接制取低碳混合醇是洁净高效利用煤炭资源的最佳途径之一。通过浸渍法制备了CoCu/SiO2催化剂，采用固定床反应器，排除了内外扩散影响，在反应温度为503～543 K，H2与CO的比值为4～0.5条件下，对合成气直接制取低碳混合醇反应进行了本征动力学研究。使用幂函数速率模型对反应结果进行了拟合，计算得出各产物的反应活化能以及对应的H2和CO的反应级数。最后结合碳链增长可能性的变化，讨论了不同温度对CoCu/SiO2催化剂催化合成气直接制备低碳醇反应机理的影响。

Abstract

Synthesis of lower carbon mixed alcohols directly from syngas is one of the most promising approaches for utilizing coal resources cleanly and efficiently. The intrinsic kinetics for this reaction

in which the effects of internal and external diffusion had been excluded

was studied over CoCu/SiO2 catalysts prepared by the impregnation method in a fixed-bed reactor at 503—543 K with molar ratios of H2/CO varying from 4 to 0.5. The apparent activation energies and the reaction orders with respect to H2 and CO for products were calculated through power law models. With the combination of chain growth probability and kinetics

the effect of temperature on reaction mechanism was discussed.

关键词

Keywords

references

Views

780

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

Bed-particle dual scale coupled simulation on Ag/SiO2 catalyzed hydrogenation of oxalate to methyl glycolate

Origin of low productivity of underground coal gasification: diffusion and reaction in stagnant boundary layer and gasification tunnel

Thermodynamic analysis and kinetic study on hydrogenation of dimethyl adipate

Catalytic activity and sulfur-resistance stability of Ni-Mo-based catalysts for syngas methanation

Coal gasification reactivity in syngas (H2O, CO2, H2 and CO) at high temperature

Related Author

HE Chuanchao

ZHOU Jinghong

CAO Yueqiang

SHI Yao

ZHOU Xinggui

Zhenyu LIU

Xingchuan YANG

Genlei WEI

Related Institution

State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology

School of Chemical Engineering, Zhengzhou University

University of Chinese Academy of Sciences

China University of Mining and Technology

Institute of Process Engineering, Chinese Academy of Sciences

⁰

Kinetics of CoCu/SiO2 for synthesis of lower carbon mixed alcohols directly from syngas

DOI：10.3969/j.issn.0438-1157.2014.01.018

摘要

Abstract

关键词

Keywords

references

Kinetics of CoCu/SiO₂ for synthesis of lower carbon mixed alcohols directly from syngas