[1]李斌,黄亚继,金保升,等.蒸汽煤比对湍动循环流化床煤气化的影响[J].东南大学学报(自然科学版),2009,39(5):998-1001.[doi:10.3969/j.issn.1001-0505.2009.05.026]
 Li Bin,Huang Yaji,Jin Baosheng,et al.Effect of steam/coal ratio on coal gasification in turbulent circulating fluidized bed[J].Journal of Southeast University (Natural Science Edition),2009,39(5):998-1001.[doi:10.3969/j.issn.1001-0505.2009.05.026]
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蒸汽煤比对湍动循环流化床煤气化的影响()
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《东南大学学报(自然科学版)》[ISSN:1001-0505/CN:32-1178/N]

卷:
39
期数:
2009年第5期
页码:
998-1001
栏目:
化学化工
出版日期:
2009-09-20

文章信息/Info

Title:
Effect of steam/coal ratio on coal gasification in turbulent circulating fluidized bed
作者:
李斌 黄亚继 金保升 仲兆平 段锋 孙宇 章名耀
东南大学能源与环境学院, 南京 210096
Author(s):
Li Bin Huang Yaji Jin Baosheng Zhong ZhaopingDuan Feng Sun Yu Zhang Mingyao
School of Energy and Environment, Southeast University, Nanjing 210096, China
关键词:
湍动 循环流化床 煤气化 蒸汽煤比
Keywords:
turbulent circulating fluidized bed coal gasification steam/coal ratio
分类号:
TQ546
DOI:
10.3969/j.issn.1001-0505.2009.05.026
摘要:
以空气和水蒸气为气化剂,在压力为0.3 MPa的湍动循环流化床热态实验台上对淮北烟煤进行了煤气化试验,研究了蒸汽煤比(质量比)对气化过程的影响.气化炉提升段具有下宽上窄的特点,床料采用宽筛分石英砂.气化试验过程中,实现了提升段下部湍动流化、上部环核流动.试验结果表明:随着蒸汽煤比的增加,煤气中CH4体积分数基本保持不变,CO体积分数从13.12%下降到11.98%,H2体积分数从初始12.3%增加到14.63%而后下降至14.19%,CO2体积分数从13.84%下降至12.94%后,略微上升至13.06%.蒸汽煤比的变化对干煤气产率、冷煤气效率及碳转化率都有影响,其最大值分别为2.89 m3/kg, 59%, 81%.
Abstract:
The gasification experiment of Huaibei bituminous coal with the agent of air and steam at 0.3 MPa was carried out on a turbulent circulating fluidized bed gasification equipment. The effects of steam/coal ratio on gasification process were studied. The characteristic of lift is that the lower part is broader than the upper. Wide-screen quartz sand is used as bed material. In the gasification experiment, the lift can achieve turbulent fluidization in the dense-phase zone and core-annulus flow in the dilute-phase zone. Experiment results show that: with the increase of steam/coal ratio, CH4 concentration in gas remains basically unchanged, and CO concentration decreases from 13.12% to 11.98%. H2 concentration increases initially from 12.3% to 14.63%, and then drops to 14.19%. CO2 concentration first decreases from 13.84% to 12.94%, and then slightly increases to 13.06%. Steam/coal ratio has a significant impact on the yield of dry gas, cold gas efficiency and carbon conversion. The maximal yield of dry gas, cold gas efficiency and carbon conversion are 2.89 m3/kg, 59%, 81% respectively.

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备注/Memo

备注/Memo:
作者简介: 李斌(1985—),男,硕士生; 黄亚继(联系人),男,博士,副教授,heyyj@seu.edu.cn.
基金项目: 国家重点基础研究发展计划(973计划)资助项目(2007CB210208)、教育部博士点基金资助项目(20070286034)、东南大学优秀青年教师资助项目(4003001012).
引文格式: 李斌,黄亚继,金保升,等.蒸汽煤比对湍动循环流化床煤气化的影响[J].东南大学学报:自然科学版,2009,39(5):998-1001. [doi:10.3969/j.issn.1001-0505.2009.05.026]
更新日期/Last Update: 2009-09-20