Preparation of morph-genetic aluminum-doped calcium oxide templated from cotton and the calcium looping performance for energy storage in the presence of steam

被引：4

作者：

Huang, Xingkang ^{[1
]}

Ma, Xiaotong ^{[1
]}

Li, Jun ^{[1
]}

Feng, Tai ^{[1
]}

Hu, Xiude ^{[2
]}

Wang, Cuiping ^{[3
]}

机构：

[1] Shandong Univ Sci & Technol, Coll Mech & Elect Engn, Qingdao 266590, Peoples R China

[2] Ningxia Univ, State Key Lab High efficiency Utilizat Coal & Gree, Yinchuan 750021, Peoples R China

[3] Shandong Univ Sci & Technol, Coll Civil Engn & Architecture, Clean Energy Lab, Qingdao 266590, Shandong, Peoples R China

来源：

JOURNAL OF ENERGY STORAGE | 2023年 / 72卷

基金：

中国博士后科学基金; 中国国家自然科学基金;

关键词：

Energy storage; Ca-based materials; Calcium looping; Template method; Steam atmosphere; CAO-BASED SORBENTS; CO2; CAPTURE; CARBIDE SLAG; BIOTEMPLATE; CAO/CACO3; CACO3; FIBER;

D O I：

10.1016/j.est.2023.108325

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

Calcium looping (CaL), which can be combined with concentrated solar power (CSP) plants, is considered a promising technology for energy storage. To overcome the deactivation of calcium based materials with increasing cycles, a novel morph-genetic aluminum doped calcium oxide was prepared by a biomass template method using limestone, aluminum nitrate and cotton as raw materials. The effects of preparation parameters and heat storage conditions (especially in presence of steam) on the energy storage performance were studied. The results showed that the hollow tubular structure of the biomass template was preserved in the synthesized material and stabilized by the support of Ca12Al14O33. The presence of the hollow microtubular structure resulted in an increased pore volume of the synthesized materials and a change of the pore distribution, promoting the diffusion of CO2. This phenomenon also explained the superior performance of the synthesized material in terms of the apparent kinetic properties and resistance to sintering. The optimal synthesized material had a high energy storage density and carbonation fraction, which were more than three times those of limestone. The presence of steam during calcination served to reduce the calcination temperature and mitigate the sintering effect of CaO. An optimization route combining solar steam system and CaL-CSP system was proposed based on the positive effect of steam, which was promising for high-efficiency energy storage.

引用

页数：13