Effects of <italic style="font-style: italic">n</italic>(Zn)/<italic style="font-style: italic">n</italic>(Al) on structures and catalytic performances of ZnAl catalysts for syngas to ethanol

GUO Qichen; LIU Jing; WEI Xiang; FAN Jinchuan; HUANG Wei

doi:10.12434/j.issn.2097-2547.20250119

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Effects of n(Zn)/n(Al) on structures and catalytic performances of ZnAl catalysts for syngas to ethanol

更新时间：2026-03-19

- Effects of n(Zn)/n(Al) on structures and catalytic performances of ZnAl catalysts for syngas to ethanol
- Vol. 51, Issue 3, Pages: 12-20(2026)
- 作者机构：
  
  1.太原理工大学省部共建煤基能源清洁高效利用国家重点实验室，山西太原 030024
  2.山西职业技术学院化学化工系，山西太原 030000
  3.太原理工大学化学与化工学院，山西太原 030024
- 作者简介：
- 基金信息：
- DOI：10.12434/j.issn.2097-2547.20250119
  CLC： TQ426;TQ223.1
- Received：18 March 2025，
  
  Revised：2025-04-15，
  
  Published：25 March 2026
- 稿件说明：
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郭琪琛,刘晶,魏翔等.n(Zn)/n(Al)对ZnAl催化剂结构及催化合成气制乙醇性能的影响[J].低碳化学与化工,2026,51(3):12-20.

GUO Qichen,LIU Jing,WEI Xiang,et al.Effects of n(Zn)/n(Al) on structures and catalytic performances of ZnAl catalysts for syngas to ethanol[J].Low-Carbon Chemistry and Chemical Engineering,2026,51(3):12-20.
郭琪琛,刘晶,魏翔等.n(Zn)/n(Al)对ZnAl催化剂结构及催化合成气制乙醇性能的影响[J].低碳化学与化工,2026,51(3):12-20. DOI： 10.12434/j.issn.2097-2547.20250119.

GUO Qichen,LIU Jing,WEI Xiang,et al.Effects of n(Zn)/n(Al) on structures and catalytic performances of ZnAl catalysts for syngas to ethanol[J].Low-Carbon Chemistry and Chemical Engineering,2026,51(3):12-20. DOI： 10.12434/j.issn.2097-2547.20250119.

摘要

煤基合成气催化转化制乙醇是煤炭清洁高效利用的重要途径之一。采用完全液相法制备了一系列不同

(Zn)/

(Al)的ZnAl催化剂，并在浆态床反应器中评价了催化剂的合成气加氢制乙醇催化性能。采用XRD、N

吸/脱附、FT-IR、NH

-TPD-MS和XPS表征了反应前后催化剂的结构。结果表明，在合成气总流量为150 mL/min、

(CO) = 2:1、温度为280 ℃和压力为4.0 MPa的条件下，

(Zn)/

(Al) = 1.0的催化剂在48~168 h内表现出相对最好的催化性能，其总醇选择性维持在23%左右，乙醇在总醇中的占比（物质的量分数）始终在60%以上。Al组分含量对催化剂的织构性质和表面酸性有较大影响；调节

(Zn)/

(Al)可调控催化剂表面Zn

(2 -

（0

2）含量，进而影响催化剂的总醇选择性。

Abstract

The catalytic conversion of coal-based syngas to ethanol is one of the important pathways for the clean and efficient utilization of coal. ZnAl catalysts prepared using complete liquid-phase method can be employed for the direct catalysis of CO hydrogenation to produce ethanol. A series of ZnAl catalysts with different

(Zn)/

(Al) were prepared via the complete liquid-phase method

and their catalytic performances in syngas to ethanol were evaluated in a slurry bed reactor. The structures of the catalysts before and after reactions were characterized using XRD

adsorption/desorption

FT-IR

-TPD-MS and XPS. The results show that under the conditions of total syngas flow rate of 150 mL/min

(CO) of 2:1

temperature of 280 °C and pressure of 4.0 MPa

the catalyst with

(Zn)/

(Al) of 1.0 exhibits relatively optimal catalytic performance over 48 h to 168 h

maintaining total alcohol selectivity of approxi

mately 23%

with the proportion of ethanol in total alcohol (mole fraction) consistently above 60%. The aluminum component content significantly influences the textural property and surface acidity of the catalyst

and adjusting

(Zn)/

(Al) can modulate the surface Zn

(2 -

2) content of the catalyst

thereby affecting total alcohol selectivity.

关键词

Keywords

references

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Related Institution

College of Chemistry, Taiyuan University of Technology

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Key Laboratory of Coal Science and Technology of Education and Shanxi Province, Taiyuan University of Technology

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Effects of n(Zn)/n(Al) on structures and catalytic performances of ZnAl catalysts for syngas to ethanol

DOI：10.12434/j.issn.2097-2547.20250119

摘要

Abstract

关键词

Keywords

references