TEST FOR OPERATION OPTIMIZATION OF CFB BOILERS MIXEDLY BURNING HIGH-SULPHUR PETROLEUM COKE WITH COAL

XU Yaobing; WANG Qinhui; YU Chunjiang; SHI Zhenglun Research Institute of Thermal Energy Engineering

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TEST FOR OPERATION OPTIMIZATION OF CFB BOILERS MIXEDLY BURNING HIGH-SULPHUR PETROLEUM COKE WITH COAL

更新时间：2025-09-28

- TEST FOR OPERATION OPTIMIZATION OF CFB BOILERS MIXEDLY BURNING HIGH-SULPHUR PETROLEUM COKE WITH COAL
- Thermal Power Generation Vol. 39, Issue 5, Pages: 72-76(2010)
- 作者机构：
  
  浙江大学热能工程研究所
- 作者简介：
- 基金信息：
- DOI：
  CLC： TK227
- Published：2010
- 稿件说明：
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XU Yaobing, WANG Qinhui, YU Chunjiang, et al. TEST FOR OPERATION OPTIMIZATION OF CFB BOILERS MIXEDLY BURNING HIGH-SULPHUR PETROLEUM COKE WITH COAL[J]. Thermal power generation, 2010, 39(5): 72-76.
DOI：

XU Yaobing, WANG Qinhui, YU Chunjiang, et al. TEST FOR OPERATION OPTIMIZATION OF CFB BOILERS MIXEDLY BURNING HIGH-SULPHUR PETROLEUM COKE WITH COAL[J]. Thermal power generation, 2010, 39(5): 72-76. DOI：

摘要

为解决混烧高硫石油焦循环流化床(CFB)锅炉在运行中出现的飞灰含碳量高、锅炉效率下降、脱硫效率低等问题

在两台310t/h CFB锅炉上进行了运行试验

对过量空气系数、床温、Ca/S和焦煤比进行了调整。试验表明

过量的空气系数1.15～1.2

床温890～900℃

焦煤比2.5∶1～3∶1较为合理。在此基础上优化试验使锅炉飞灰含碳量较基准工况下降了8.85%

锅炉效率提高了2.35%

SO2排放浓度由834.42μL/L降至480μL/L。石灰石粒度对脱硫效率影响极大

运行中应严格保证设计的石灰石粒径分布

以提高脱硫剂利用率

保持较高的脱硫效率。

Abstract

In order to solve the problems occurred in operation of a CFB boiler mixedly burning high-sulphur petroleum coke with coal

such as high carbon content in fly ash

low boiler efficiency

and low desulphurization efficiency etc.

an operation test has been carried out on two 310 t/h CFB boilers

the excess air coefficient

the bed temperature

the Ca/S ratio

and the ratio of petroleum coke to coal being adjusted.Tset shows that the optimal operation parameters are as follows:the excess air coefficient is 1.15~1.2

the bed temperature is 890~900 ℃

and the ratio of petroleum coke to coal is 2.5∶1~3∶1.On this basis

an optimization test of boiler performance has been conducted.After optimization

the carbon content in fly ash has decreased 8.05% than that under reference operating condition

the boiler efficiency has increased 2.49%

and the concentration of SO2 emission has reduced from 834.42 μL/L to 480 μL/L.

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