流化床煤气化炉内脱硫的研究Ⅰ．台式流化床煤气化的炉内脱硫试验  

AN INVESTIGATION INTO INSITU DESULFURIZATION OF COAL GASIFICATION IN FLUIDIZED BED Ⅰ DESULFURIZATION TESTS IN A BENCH SCALE FLUIDIZIED BED REACTOR

作　　者：吴治国[1] 沙兴中[1] 黄瀛华[1] 曹建勤[1] 步学朋 徐晓东 逄进 谢可玉 

机构地区：[1]华东理工大学 [2]煤科院北京煤化所

出　　处：《燃料化学学报》1996年第5期393-398,共6页Journal of Fuel Chemistry and Technology

摘　　要：采用台式流化床煤气化装置，研究了影响炉内脱硫效率的因素。炉内脱硫对高硫煤特别有效，脱硫效率可达９０％以上。所采用的二种石灰石和一种白云石脱硫效率相近，按Ｃａ／Ｓ比比较则白云石稍好些。虽然脱硫效率随Ｃａ／Ｓ比增加而增加，但当Ｃａ／Ｓ比达到３后几乎不再增加。存在一个最佳脱硫操作温度。在非焙烧区，脱硫率随压力增加而下降，而在焙烧区脱硫率和压力几乎无关。测定了脱硫剂脱硫前后的孔容积分布，发现脱硫之后１～３０ｎｍ的孔容显著减少。Limestone and dolomite are viable calciumbased sorbents for sulfurcapturing in an insitu desulfurization process The following factors which affect insitu desulfurization have been studied by using a 3 0 cm I D fluidized bed reactor Shangle dolomite, Feng shen limestone and Zai kow limestone showed similar performences in desulfurization ability Limestone and dolomite are more effective for YiMa coal which is a highsulfur coal Above 90% sulfur in the coal can be captured during gasification The operating temperature along with P CO 2 has influence on desulfurization efficiency (D E ) At a constant P CO 2 , an optimum reaction temperature for desulfurization can be determined It is found that D E decreases with increasing pressure in noncalcination zone and shows no relation with operating pressure in calcination zone D E increases with increasing Ca/S ratio and tends to a plateau at Ca/S ratios of 3 and higher, the utilization ratio of limestone or dolomite is at a relatively low level

关 键 词：脱硫 煤气化 钙基 脱硫剂 气化设备 气化炉 

分 类 号：TQ545[化学工程—煤化学工程]