电沉积法高效合成FeCo双金属催化剂用于生产高热值SNG  

Efficient synthesis of FeCo bimetallic catalysts by electrodeposition for high calorific value SNG production

作　　者：武鹏 郑昱 马丽娜 罗莉 WU Peng;ZHENG Yu;MA Li-na;LUO Li(Department of Energy Chemistry and Materials Engineering,Shanxi Institute of Energy,Jinzhong 030600,China)

机构地区：[1]山西能源学院,能源化学与材料工程系,山西晋中0030600

出　　处：《化学研究与应用》2025年第2期429-438,共10页Chemical Research and Application

基　　金：山西省基础研究计划基金项目(202403021212047)资助;山西省高等学校科技创新项目(2024L402,2024L405)资助。

摘　　要：开发一种生产C1-C_(4)碳氢化合物组成的高热值合成气体(40-60 MJ·Nm^(-3))的新催化路线,对于气体应用和高热需求的场所具有重要的工业意义。本研究在温和的温度(240-330℃)、中等压力(2MPa)和较高的空速(6000 mL/gcat/h)下,对电沉积合成的Co/IF和FeCo/IF催化剂进行了评估。实验结果表明,FeCo双金属催化剂在合成高热值气体方面表现优越。特别是FeCo/IF催化剂在330℃时显示出97.2%的CO转化率,产生了68.1 MJ·Nm^(-3)的热值(含45.5 mol%CH4和48.2 mol%C_(2)-C_(4)碳氢化合物)。FeCo催化性能的提升归因于共沉积过程增强了催化剂的比表面积,并细化了纳米颗粒的尺寸。这一发现标志着催化工程在开发高热值合成气催化剂合成技术方面向前迈进了一步。The development of a new catalytic route for the production of high calorific value synthesis gases(40-60 MJ·Nm^(-3))consisting of C_1-C_(4) hydrocarbons is of great industrial importance for gas applications and locations with high heat demand.In this study,Co/IF and FeCo/IF catalysts synthesized by electrodeposition were evaluated at mild temperatures(240-330℃),moderate pressures(2MPa)and high air velocities(6000 mL/g_(cat)/h).The experimental results showed that the FeCo bimetallic catalysts performed superiorly in the synthesis of high calorific value gases.In particular,the FeCo/IF catalysts showed 97.2%CO conversion at330℃,yielding a calorific value of 68.1 MJ·Nm^(-3)(with 45.5 mol%CH_4 and 48.2 mol%C_(2)-C_(4) hydrocarbons).The enhancement of the FeCo catalytic performance was attributed to the co-deposition process that enhanced the specific surface area of the catalysts and refined the nanoparticle size.This finding marks a step forward in catalytic engineering in the development of high calorific value syngas catalyst synthesis techniques.

关 键 词：电沉积法 Fe-Co双金属 合成天然气 高热值 

分 类 号：O614.8[理学—无机化学]