Removal of Nitrogen Pollutants in the Chemical Looping Process: A Review
Yuchao Zhou,
Xinfei Chen,
Yan Lin,
Da Song,
Min Mao,
Xuemei Wang,
Shengwang Mo,
Yang Li,
Zhen Huang (huangzhen@ms.giec.ac.cn) and
Fang He (hefang@glut.edu.cn)
Additional contact information
Yuchao Zhou: College of Chemistry and Bioengineering, Guilin University of Technology, Guilin 541000, China
Xinfei Chen: Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, Guangzhou 510640, China
Yan Lin: Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, Guangzhou 510640, China
Da Song: Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, Guangzhou 510640, China
Min Mao: College of Chemistry and Bioengineering, Guilin University of Technology, Guilin 541000, China
Xuemei Wang: College of Chemistry and Bioengineering, Guilin University of Technology, Guilin 541000, China
Shengwang Mo: College of Chemistry and Bioengineering, Guilin University of Technology, Guilin 541000, China
Yang Li: Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, Guangzhou 510640, China
Zhen Huang: Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, Guangzhou 510640, China
Fang He: College of Chemistry and Bioengineering, Guilin University of Technology, Guilin 541000, China
Energies, 2024, vol. 17, issue 14, 1-15
Abstract:
In the process of fuel utilization, traditional combustion technologies result in the conversion of nitrogen elements in fuels into nitrogen oxides, which are released into the atmosphere, posing serious threats to the environment and human health. The chemical looping process (CLP) is an effective technology for reducing nitrogen-containing (N-containing) pollutants during fuel utilization. During the CLP, the oxygen carrier (OC) can oxidize nitrogen oxide precursors (NH 3 and HCN) released from the fuel to N 2 , while the reduced OC can reduce nitrogen oxides to N 2 . The achievement of efficient nitrogen pollutant removal relies on the development of highly active oxygen carriers (OCs). This review summarizes the recent progress in the removal of nitrogen pollutants within chemical looping processes (CLPs). It delineates the formation pathways of N-containing pollutants (NH 3 , HCN, NO, NO 2 and N 2 O) and highlights the performance of various OCs. The influence of reaction conditions and feedstock characteristics is also discussed. Ni-based OCs have demonstrated superior performance in the removal of N-containing pollutants, exhibiting strong oxidation capabilities and excellent catalytic properties. Moreover, iron ore, as a cost-effective and environmentally friendly feedstock, holds promise for wide-scale application. Future research should focus on further optimizing OCs strategies and refining reaction conditions to achieve more efficient and economical N-containing pollutant removal, thereby fostering the widespread application of chemical looping technology in the energy sector.
Keywords: chemical looping; oxygen carrier; nitrogen pollutant; formation; removal (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2024
References: Add references at CitEc
Citations:
Downloads: (external link)
https://www.mdpi.com/1996-1073/17/14/3432/pdf (application/pdf)
https://www.mdpi.com/1996-1073/17/14/3432/ (text/html)
Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.
Export reference: BibTeX
RIS (EndNote, ProCite, RefMan)
HTML/Text
Persistent link: https://EconPapers.repec.org/RePEc:gam:jeners:v:17:y:2024:i:14:p:3432-:d:1433751
Access Statistics for this article
Energies is currently edited by Ms. Agatha Cao
More articles in Energies from MDPI
Bibliographic data for series maintained by MDPI Indexing Manager (indexing@mdpi.com).