当前位置: X-MOL 学术Chem. Eng. Technol. › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Effects of Na2CO3/K2CO3 on Chemical Looping Combustion Using Fe2O3/Al2O3 as Oxygen Carrier
Chemical Engineering & Technology ( IF 1.8 ) Pub Date : 2020-01-09 , DOI: 10.1002/ceat.201900409
Zhifeng Zhang 1 , Yifei Wang 1 , Longchu Zhu 1 , Jilin Li 1 , Fuchen Wang 1 , Guangsuo Yu 1
Affiliation  

The performance of the Fe2O3/Al2O3 oxygen carrier modified by the alkali metals, Na and K, was studied by thermogravimetric analysis and in a laboratory‐scale fluidized‐bed reactor. Different factors, such as the alkali metal content, the alkali metal type, and the interaction between Na and K, were taken into account. Both Na and K had strong catalytic effects on the conversion of Fe2O3. A high K content caused serious agglomeration. Increasing the Na content led to slagging because of the low‐melting point solid solution. The possibility of agglomeration and slagging was reduced when Na and K were added together. The oxygen carrier with 1.5 wt % Na and 1.5 wt % K had better combustion efficiency and optimal thermal stability. Na and K could enhance the attrition resistance and prolong the lifetime of the oxygen carriers.

中文翻译:

Na2CO3 / K2CO3对以Fe2O3 / Al2O3为氧载体的化学循环燃烧的影响

通过热重分析和在实验室规模的流化床反应器中研究了被碱金属Na和K改性的Fe 2 O 3 / Al 2 O 3氧载体的性能。考虑了不同的因素,例如碱金属含量,碱金属类型以及Na和K之间的相互作用。Na和K均对Fe 2 O 3的转化具有强烈的催化作用。。高钾含量导致严重的团聚。由于低熔点固溶体,Na含量增加导致结渣。当将Na和K一起添加时,降低了结块和结渣的可能性。具有1.5重量%的Na和1.5重量%的K的氧载体具有更好的燃烧效率和最佳的热稳定性。Na和K可以增强耐磨耗性并延长氧载体的寿命。
更新日期:2020-01-09
down
wechat
bug