The significance of NO_(2) dimerization in plasma-based NO_(x) synthesis for nitrogen fixation  

作　　者：Thijs van Raak Huub van den Bogaard Fausto Gallucci Sirui Li 

机构地区：[1]Sustainable Process Engineering,Department of Chemical Engineering and Chemistry,Eindhoven University of Technology,De Rondom 70,Eindhoven 5612 AP,the Netherlands [2]Eindhoven Institute for Renewable Energy Systems(EIRES),Eindhoven University of Technology,PO Box 513,Eindhoven 5600 MB,the Netherlands

出　　处：《Journal of Energy Chemistry》2024年第12期522-528,共7页能源化学（英文版）

基　　金：supported by the NOW’s Prescient project(16271);the LEAP-AGRI project AFRICA。

摘　　要：Plasma-based NO_(x) synthesis has been considered as a sustainable alternative to the conventional HaberBosch process.Despite the advancements in research achieved in recent years,limited attention has been paid to the reversible dimerization reaction of NO_(2) to N_(2)O_(4).This reaction can significantly alter the parameters considered with the process’output,such as the concentration or volume fraction of products and the energy consumption.This work aims to investigate the significance of dimerization through theoretical analysis and experimentation.Experiments were conducted with a 2D-gliding arc reactor to evaluate the influence of dimerization in the case of plasma reactor operation.It was observed that the dimerization reaction reached equilibrium in microseconds,resulting in a maximum hypothetical NO_(2) equilibrium conversion of 48.8%.For plasma experiments,the dimerization could cause a maximum error of 14.1%in product detection,which needs to be carefully considered along with the influence of temperature variations on the measurement.

关 键 词：Nitrogen fixation N_(2)O_(4) DIMERIZATION NO_(x)synthesis Non-thermal plasma Gliding arc reactor 

分 类 号：TQ126.24[化学工程—无机化工]