Experimental Study on LaFeO3/Nb2O5 Oxygen Carrier in Chemical-Looping Partial Oxidation of Methane

被引：0

作者：

Lai, Yue ^{[1
]}

Zheng, Songming ^{[1
]}

Duan, Huamei ^{[1
]}

Long, Mujun ^{[1
]}

Chen, Dengfu ^{[1
]}

Li, Yandong ^{[2
]}

Zhang, Guoquan ^{[3
]}

机构：

[1] Chongqing Univ, Coll Mat Sci & Engn, Chongqing 400044, Peoples R China

[2] Yangtze Normal Univ, Coll Mat Sci & Engn, Chongqing 408100, Peoples R China

[3] Sichuan Univ, Coll Chem Engn, Chengdu 610065, Sichuan, Peoples R China

来源：

TMS 2024 153RD ANNUAL MEETING & EXHIBITION: SUPPLEMENTAL PROCEEDINGS | 2024年

基金：

中国国家自然科学基金;

关键词：

Oxygen carrier; Chemical-looping partial oxidation of methane; Perovskite catalyst; Modified; IRON-OXIDE; COMBUSTION;

D O I：

10.1007/978-3-031-50349-8_35

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Chemical-looping partial oxidation of methane is a green technology. The iron-based material has good oxygen storage capacity and sintering resistance. LaFeO3 is a perovskite catalyst, which has good selectivity and structural stability in the process of methane conversion to syngas. Nb is carbon resistant and can produce more oxygen vacancies. Therefore, in this study, LaFeO3 was modified with Nb2O5 and tested the partial oxidation ability of LaFeO3/Nb2O5 oxygen carrier. Thermodynamic calculation was carried out by FactSage 8.1. At 900 degrees C, the calculation results showed that: methane conversion rate was 100%, CO selectivity was 95.6%, H-2 selectivity was 95.9%, no carbon deposition, and H-2/CO ratio was 2. At 900 degrees C, the experimental results showed that: the conversion rate of methane was 90.4%, H-2 selectivity was 86%, CO selectivity was 79%, and H-2/CO2 ratio was 2.18.

引用

页码：409 / 419

页数：11

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