Reversible operation of solid oxide cells fed with syngas derived from underground coal gasification

被引：2

作者：

Liu, Shuai ^{[1
]}

Sang, Junkang ^{[2
]}

Lu, Cun ^{[2
]}

Yang, Jun ^{[2
]}

Zhang, Yang ^{[2
]}

Zhu, Liangzhu ^{[2
]}

Wang, Jianxin ^{[2
]}

Chai, Maorong ^{[3
]}

Chen, Liang ^{[2
]}

Guan, Wanbing ^{[2
]}

机构：

[1] NingboTech Univ, Sch Mechatron & Energy Engn, Ningbo 315100, Zhejiang, Peoples R China

[2] Chinese Acad Sci, Ningbo Inst Mat Technol & Engn, Key Lab Adv Fuel Cells & Electroyzers Technol Zhej, Ningbo 315200, Zhejiang, Peoples R China

[3] State Power Investment Corp Hydrogen Energy Co Ltd, Beijing 102209, Peoples R China

来源：

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY | 2024年 / 79卷

基金：

中国国家自然科学基金;

关键词：

Reversible solid oxide cell; Underground coal gasification; Syngas; CO; 2; electrolysis; Density functional theory; FUEL-CELL; PERFORMANCE; ELECTROLYSIS; HYDROGEN; METHANE; ENERGY;

D O I：

10.1016/j.ijhydene.2024.07.095

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Underground coal gasification (UCG) technology can directly convert coal resources to syngas underground, making it important for coal utilization. In this work, the power generation, CO2 electrolysis, and reversible operation of flat-tube solid oxide cells (SOCs) fueled with UCG syngas were studied. The factors affecting the performances of flat-tube solid oxide cells were investigated. Fueled with syngas (Swan Hills, Canada) at 750 degrees C, the flat-tube cell achieved a maximum power density of 329.4 mW cm-2 and a current density of 650.8 mA cm-2 at 1.4 V. 100-cycle (250 h) reversible operation of flat-tube SOCs running on syngas (Swan Hills) was accomplished. No carbon deposition on the surfaces of the cell fuel channels was detected. The syngas conversion in flat-tube cells was illuminated based on density functional theory calculations.

引用

页码：1456 / 1463

页数：8

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