%0 Journal Article
%T 低灰熔融性神华煤干煤粉气化
%A 吴国祥
%A 吴秀章
%A 赵宗凯
%J 洁净煤技术
%D 2012
%X 神华煤具有灰分低、硫含量低、挥发分高、发热量高、水含量高的特点,但灰熔融性低于1200℃。采用Shell气化炉加工低灰熔融性神华煤时,出现了气化炉膜式水冷壁不挂渣,合成气冷却器结垢严重,干合成气飞灰过滤器滤芯频繁断裂,碳转化率低,CO变换催化剂失活等问题。通过在气化原料煤中掺混10%左右的高灰分、高灰熔融性的神华乌海高硫煤,使混合原料煤的灰熔融性高于1250℃。配煤后彻底解决了上述问题,装置运行良好。 Shenhua coal has lots of advantages such as low ash and sulphur content,high volatile matter,calorific capacity,water content,but its ash fusibility is below 1200 ℃.When treating Shenhua coal with Shell gasifier,membrane water wall of gasifier doesn't hang slag,synthesis gas cooler scales seriously,filter element filtering flying ash of dry synthesis gas fractures frequently,the carbon conversion is low,catalyst for carbon dioxide conversion is inactivated.By mixing 10 percent high ash and ash fusibility Shenhu Wuhai high-sulfur coal,increase the ash fusibility of mixed raw coal to be above 1250 ℃.This method resolves the above issues
%K 干煤粉
%K 气化
%K 低灰熔融性
%K 神华煤
%K 配煤 dry pulverized coal
%K gasification
%K low ash fusibility
%K Shenhua coal
%K coal blending
%U http://www.jjmjs.com.cn/WKD/WebPublication/paperDigest.aspx?paperID=fa3e4dda-3611-4529-9440-6e01434f4edc