Study on performance of promoter-modified Fe-based catalysts for CO hydrogenation to <italic style="font-style: italic">α-</italic>olefins in high-throughput reactor

DENG Jiakang; WANG Tianye; LI Hongwei; ZHANG Rongjun; XU Run

doi:10.12434/j.issn.2097-2547.20250075

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Study on performance of promoter-modified Fe-based catalysts for CO hydrogenation to α-olefins in high-throughput reactor

更新时间：2025-12-25

- Study on performance of promoter-modified Fe-based catalysts for CO hydrogenation to α-olefins in high-throughput reactor
- Vol. 50, Issue 12, Pages: 30-39(2025)
- 作者机构：
  
  中石化石油化工科学研究院有限公司，北京 100083
- 作者简介：
- 基金信息：
- DOI：10.12434/j.issn.2097-2547.20250075
  CLC： TQ426.8;O643.3
- Received：27 February 2025，
  
  Revised：2025-04-01，
  
  Published：25 December 2025
- 稿件说明：
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邓家康,汪天也,李红伟等.助剂改性Fe基催化剂在高通量反应器中催化CO加氢制α-烯烃性能研究[J].低碳化学与化工,2025,50(12):30-39.

DENG Jiakang,WANG Tianye,LI Hongwei,et al.Study on performance of promoter-modified Fe-based catalysts for CO hydrogenation to α-olefins in high-throughput reactor[J].Low-Carbon Chemistry and Chemical Engineering,2025,50(12):30-39.
邓家康,汪天也,李红伟等.助剂改性Fe基催化剂在高通量反应器中催化CO加氢制α-烯烃性能研究[J].低碳化学与化工,2025,50(12):30-39. DOI： 10.12434/j.issn.2097-2547.20250075.

DENG Jiakang,WANG Tianye,LI Hongwei,et al.Study on performance of promoter-modified Fe-based catalysts for CO hydrogenation to α-olefins in high-throughput reactor[J].Low-Carbon Chemistry and Chemical Engineering,2025,50(12):30-39. DOI： 10.12434/j.issn.2097-2547.20250075.

摘要

通过Fe基催化剂催化CO加氢直接合成

-烯烃是实现碳资源化利用的重要途径之一。分别采用共沉淀法和等体积浸渍法制备了

Fe/Zn和

Fe/Zn-

Na催化剂，利用16通道高通量反应器进行了催化剂性能评价，实现了催化剂的快速高效筛选。同时，考察了Zn、Na助剂对Fe基催化剂制备

-烯烃的促进作用。通过N

吸/脱附、XRD和H

-TPR等多种方法对反应前后的催化剂进行了表征。数据显示，Zn在加入过程中可以与Fe形成ZnFe

固溶体，提高了催化剂的稳定性；Na有利于催化剂在反应过程中的活化，促进了活性相形成。在340 ℃、2.0 MPa和体积空速54000 mL/(g·h)条件下，1.0Fe/Zn-3.6Na（

(Fe)/

(Zn) = 1.0、

(Na) = 3.6%）具有最优的催化性能：CO转化率为48.17%，CH

选择性为6.28%，C

烃类产物烯烷选择性比（O/P值）为6.25，C

烃类产物中

-烯烃质量分数提高至38.19%（数据采集时间为48 h）。针对16种催化剂的筛选工作，与传统单固定床反应器相比，高通量反应器可以节省约94%实验时间，且在稳定控制强放热反应的反应温度、压力等方面表现优异。

Abstract

Direct synthesis of

-olefins through CO hydrogenation catalyzed by Fe-based cata

lysts is one of the important ways to realize carbon resource utilization.

Fe/Zn and

Fe/Zn-

Na catalysts were prepared by co-precipitation and iso-volume impregnation methods

respectively

and they were evaluated by a sixteen-channel high-throughput reactor to realize rapid and efficient screening of catalysts. The promotional effects of Zn and Na additives on the preparation of

-olefins by Fe-based catalysts were also investigated. The catalysts before and after reaction were characterized by N

adsorption/desorption

XRD

-TPR and so on. The data shows that Zn can form ZnFe

solid solution with Fe during the addition process

improving the stability of catalysts. The addition of Na facilitates the activation of catalysts

promoting the formation of the active phases. 1.0Fe/Zn-3.6Na ((

(Fe)/

(Zn) = 1.0 and

(Na) = 3.6%) has the optimal catalytic performance under the reaction conditions of 340 ℃

2.0 MPa and volume space velocity of 54000 mL/(g·h): CO conversion rate of 48.17%

selectivity of 6.28%

alkene to alkane selectivity ratio for C

hydrocarbon products (O/P value) of 6.25 and mass fraction of

-olefins in C

hydrocarbon products increasing to 38.19% (data collection time of 48 h). For the screening of sixteen catalysts

high-throughput reactors can save about 94% of experimental time

compared with conventional single fixed-bed reactors

and perform excellently in stable control of reaction temperatures

pressures and other aspects of highly exothermic reactions.

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references

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Study on performance of promoter-modified Fe-based catalysts for CO hydrogenation to α-olefins in high-throughput reactor

DOI：10.12434/j.issn.2097-2547.20250075

摘要

Abstract

关键词

Keywords

references