华电技术 ›› 2019, Vol. 41 ›› Issue (4): 41-46.

• 新能源 • 上一篇    下一篇

生物质气化合成气对燃煤机组负荷的影响试验

  

  1. 1.华电湖北发电有限公司,武汉〓430061;2.湖北华电襄阳发电有限公司,湖北襄阳〓441041
  • 出版日期:2019-04-25

Experiment on the influence of biomass gasification syngas on the load of coalfired power plant

  1. 1.Huadian Hubei Power Generation Company Limited,Wuhan 430061,China; 2.Hubei Huadian Xiangyang Power Generation Company Limited,Xiangyang 441041, China
  • Published:2019-04-25

摘要:

以湖北华电襄阳发电有限公司为例,在生物质气化耦合燃煤机组发电系统上进行定负荷和定煤量试验。研究发现:生物质气化系统中产生合成气中气体成分稳定,可燃气体质量分数在30%左右,其中CH4,H2的质量分数稳定在5%以上,CO的质量分数稳定在18%左右。在试验中,燃煤机组消纳了合成气入炉对燃煤机组烟气中污染物SO2和NOx的影响。当合成气入炉后,烟气中污染物SO2的质量浓度在35mg/m3以下,NOx的质量浓度在40mg/m3以下,均达到了超净排放标准。合成气入炉对燃煤机组的燃烧有增强作用,生物质合成气通过燃煤机组高效发电,并有降低燃煤机组煤耗的作用。

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Abstract:

Taking Huadian Hubei Power Generation Company Limited as an example,the constant load and coal consumption tests on biomass gasification coupled coalfired unit power generation system are carried out. It is found out that the gas composition of biomass gasification syngas is stable,combustible gas mass fraction is around 30%, the mass fractions of CH4 and H2 are steady at 5%,and mass fraction of CO is about 18%. In the test, coalfired units have absorbed the influence of syngas on the pollutants, SO2 and NOx,in the flue gas. When syngas enters the furnace, the mass concentration of SO2 and NOx are below 35mg/m3 and 40mg/m3 respectively, which satisfies the ultra clean emission standard.The biomass gasification syngas has an enhancing effect on the combustion of the coalfired power plant. The biomass gasification syngas generates power efficiently through the coalfired unit, which can reduce the coal consumption of coalfired power plant.

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