华电技术 ›› 2019, Vol. 41 ›› Issue (11): 32-35.

• 专题综述 • 上一篇    下一篇

生物质燃煤耦合发电技术现状及建议

  

  1. 华电郑州机械设计研究院有限公司,郑州〓450046

  • 出版日期:2019-11-25 发布日期:2019-12-18

Current status and suggestions on biomasscoal coupled power generation technology

  1. Huadian Zhengzhou Machinery Design and Research Institute Company Limited, Zhengzhou 450046, China

  • Online:2019-11-25 Published:2019-12-18

摘要:

为合理有效利用我国各种生物质、固体废弃物资源,国内提出了生物质燃煤耦合发电思路,但由于投资较高及缺乏电价补贴政策的支持,项目推广很难。针对我国各种生物质、固体废弃物的产生量,结合常规火电机组运行参数进行匹配性分析,并对比生物质燃煤耦合发电项目与新建常规纯烧生物质项目的投资费用,提出了合理的处置方案。建议城市污泥可在电厂直接掺烧,经济方便;循环流化床锅炉掺烧生物质系统简单,投资低,直接掺烧经济效益较好;煤粉锅炉掺烧生物质系统复杂、投资高,经济效益不明显,可采用生物质气化与制取副产品相结合的处理措施;城市一般工业固体废弃物可在循环流化床锅炉中进行掺烧,但需要对环保方面的影响进行重点分析。

关键词:

font-size: 10.5pt, mso-spacerun: 'yes', mso-font-kerning: 1.0000pt">生物质, 掺烧, 燃煤, 污泥, 生物质, 固废, 经济性

Abstract:

In order to rationally and effectively utilize various biomass and solid waste resources in China, biomasscoal coupled power generation is proposed. However, due to the high investment and lack of subsidy policy for electricity price, the promotion is very difficult. Matching the production of various biomass and solid wastes up with the conventional operational parameters of thermal power units, and comparing the investment of biomasscoal coupled power generation projects with conventional biomassfired projects, a reasonable solution is proposed. It is suggested that municipal sludge can be directly blended and burned, which is economical and convenient.The biomass burning system with circulating fluidized bed boiler is simple and moneysaving in blending and combustion.The biomass burning system with pulverized coal boiler is complex and moneyconsuming,which can be improved by biomass gasification and byproducts making.General industrial solid waste from cities can be blended and burned in circulating fluidized bed boilers, but the impact on environment needs to be analyzed.

Key words:

font-size: 10.5pt, mso-spacerun: 'yes', mso-font-kerning: 1.0000pt">biomass, blending and combustion, coal, sludge, biomass, solid waste, economy