CAJ | 학술논문

采用 SrFe0.6Cu0.3Ti0.1O3-δ混合导体透氧膜组装成膜催化反应器，进行甲烷部分氧化制合成气反应，考察了反应温度、空速、催化剂粒径等条件的影响，并分析了反应气氛引起的透氧膜结构变化情况。结果表明，在膜反应器内，催化反应与透氧过程存在相互制约和相互促进的关系。在膜反应器内进行甲烷部分氧化反应后，透氧膜的两侧表面均发生蚀刻现象，结晶度显著降低，反应侧蚀刻现象较为严重，膜表面形成了疏松的多孔层，反应气氛使膜表面晶体结构发生了较大改变，Sr容易从钙钛矿结构中析出并与CO2结合形成SrCO3，Sr的析出导致组成不平衡，促进了钙钛矿结构分解及其他物相的产生。
채용 SrFe0.6Cu0.3Ti0.1O3-δ혼합도체투양막조장성막최화반응기，진행갑완부분양화제합성기반응，고찰료반응온도、공속、최화제립경등조건적영향，병분석료반응기분인기적투양막결구변화정황。결과표명，재막반응기내，최화반응여투양과정존재상호제약화상호촉진적관계。재막반응기내진행갑완부분양화반응후，투양막적량측표면균발생식각현상，결정도현저강저，반응측식각현상교위엄중，막표면형성료소송적다공층，반응기분사막표면정체결구발생료교대개변，Sr용역종개태광결구중석출병여CO2결합형성SrCO3，Sr적석출도치조성불평형，촉진료개태광결구분해급기타물상적산생。
SrFe0.6Cu0.3Ti0.1O3-δ membrane was used to install a membrane reactor for partial oxidation of methane to syngas. The influences of temperature, space velocity and catalyst particle size on the reaction were studied, and the change of the phase structure of the membrane was analyzed. The interaction between the oxygen permeating process and the partial oxidation reaction caused different reaction performance in membrane reactor compared with fixed bed reactor. The crystallinity of both sides of the SrFe0.6Cu0.3Ti0.1O3-δ membrane declined significantly after the catalytic reaction. The decomposition of the perovskite structure and the formation of SrCO3 and other phases were found in the reaction-side surface of the membrane, along with the emergence of loose porous morphology.