欢迎访问《生物质化学工程》,

生物质化学工程 ›› 2022, Vol. 56 ›› Issue (6): 51-60.doi: 10.3969/j.issn.1673-5854.2022.06.008

• 综述评论 • 上一篇    下一篇

生物质锅炉NOx控制技术研究进展

高昕玥1, 袁世震2, 翁君杰3, 赵鹏勃4, 王长安1,*(), 车得福1   

  1. 1. 西安交通大学, 动力工程多相流国家重点实验室, 陕西 西安 710049
    2. 金华宁能热电有限公司, 浙江 金华 321081
    3. 宁波明州热电有限公司, 浙江 宁波 315000
    4. 西安西热锅炉环保工程有限公司, 陕西 西安 710054
  • 收稿日期:2021-10-18 出版日期:2022-11-30 发布日期:2022-11-18
  • 通讯作者: 王长安 E-mail:changanwang@mail.xjtu.edu.cn
  • 作者简介:王长安, 博士生导师, 研究领域: 固体燃料高效清洁燃烧; E-mail: changanwang@mail.xjtu.edu.cn
    高昕玥(1997—), 女, 天津滨海新区人, 硕士生, 主要从事固体燃料燃烧及放热特性研究
  • 基金资助:
    国家自然科学基金资助项目(52176129)

Research Progress of NOx Control Technology in Biomass-fired Boiler

Xinyue GAO1, Shizhen YUAN2, Junjie WENG3, Pengbo ZHAO4, Chang'an WANG1,*(), Defu CHE1   

  1. 1. State Key Laboratory of Multiphase Flow in Power Engineering, Xi'an Jiaotong University, Xi'an 710049, China
    2. Jinhua Ningneng Thermal Power Co., Ltd., Jinhua 321081, China
    3. Ningbo Mingzhou Thermal Power Co., Ltd., Ningbo 315000, China
    4. Xi'an Xi Thermal Boiler Environmental Protection Engineering Co., Ltd., Xi'an 710054, China
  • Received:2021-10-18 Online:2022-11-30 Published:2022-11-18
  • Contact: Chang'an WANG E-mail:changanwang@mail.xjtu.edu.cn

摘要:

我国生物质资源丰富,种类繁多,可直接作为燃料燃烧。随着生物质发电装机容量占比逐年增加,环境保护要求逐年提高,生物质电厂烟气排放控制更加严格。生物质锅炉初始氮氧化物排放波动大,烟气中飞灰碱金属含量高,湿度大,生物质锅炉脱硝技术面临重大挑战。本文在对比分析生物质燃料燃烧和烟气排放特点的基础上,分析了目前广泛应用的传统脱硝技术以及正在不断完善的新型脱硝技术的发展现状和各自优缺点。传统脱硝技术包括低氮燃烧技术、选择性催化还原技术和选择性非催化还原技术,新型脱硝技术包括等离子脱硝技术、臭氧氧化脱硝技术、生物质活性炭脱硫脱硝技术、ZYY干法脱硫脱硝技术、低温氧化吸收协同半干法脱硝技术、液态生物钙脱硝技术和固态高分子脱硝技术等。同时对生物质锅炉脱硝技术存在的技术问题、成本问题和运行周期等进行了讨论。

关键词: 生物质, 烟气, 氮氧化物, 选择性催化还原, 选择性非催化还原, 脱硝

Abstract:

China was rich in biomass resources with various types, which could be directly used for combustion. With the proportion of installed biomass power generation capacity increasing year by year, environmental protection requirements were enhancing, and the flue gas emissions control of biomass power plants was more strictly. The inital nitrogen oxide emissions of biomass boiler fluctuated greatly, the alkali metal content of fly ash in flue gas was high, and the humidity was high. The biomass boilers denitration technology was facing major challenges. Based on the comparative analysis of the characteristics of biomass fuel combustion and flue gas emissions, the development status, advantages, and disadvantages of the widely used traditional denitrification technology and the new developing denitrification technology were analyzed. Traditional denitrification technologies included low nitrogen combustion technology, selective catalytic reduction technology, and selective non-catalytic reduction technology. New denitrification technologies included plasma denitrification technology, ozone oxidation denitrification technology, biomass activated carbon desulfurization and denitrification technology, ZYY dry desulfurization and denitrification technology, low temperature oxidation absorption synergistic semi-dry denitrification technology, liquid biological calcium denitrification technology, and solid polymer denitrification technology. Moreover, the technical problems, cost problems, and operation period of biomass boilers technology were also discussed.

Key words: biomass, flue gas, NOx, selective catalytic reduction, selective non-catalytic reduction, denitrification

中图分类号: