洁净煤技术
潔淨煤技術
길정매기술
CLEAN COAL TECHNOLOGY
2015年
2期
113-116
,共4页
活性焦%吸附速度%吸附模型%吸附硫容%脱硫
活性焦%吸附速度%吸附模型%吸附硫容%脫硫
활성초%흡부속도%흡부모형%흡부류용%탈류
activated coke%adsorption rate%adsorption model%adsorption capacity%desulfuration
为评价活性焦脱硫特性，选取现有活性焦，在微分反应装置上考察烟气组分对吸附硫容的影响及SO2浓度对吸附量、吸附速度的影响。试验结果表明：烟气组分中SO2、氧、水蒸汽体积分数增加有利于提高活性焦吸附硫容，而随床层温度的升高，活性焦吸附硫容降低。活性焦吸附符合Bangham吸附速率模型，采用较高SO2体积分数的模拟试验气体，吸附速度衰减很快，将商用大颗粒活性焦破碎至2~3 mm，在SO2为10000×10－6的模拟试验气体工况的条件下吸附，吸附4 h后，其吸附硫容增量小于5%，可将其4 h吸附SO2量作为活性焦的吸附硫容。
為評價活性焦脫硫特性，選取現有活性焦，在微分反應裝置上攷察煙氣組分對吸附硫容的影響及SO2濃度對吸附量、吸附速度的影響。試驗結果錶明：煙氣組分中SO2、氧、水蒸汽體積分數增加有利于提高活性焦吸附硫容，而隨床層溫度的升高，活性焦吸附硫容降低。活性焦吸附符閤Bangham吸附速率模型，採用較高SO2體積分數的模擬試驗氣體，吸附速度衰減很快，將商用大顆粒活性焦破碎至2~3 mm，在SO2為10000×10－6的模擬試驗氣體工況的條件下吸附，吸附4 h後，其吸附硫容增量小于5%，可將其4 h吸附SO2量作為活性焦的吸附硫容。
위평개활성초탈류특성，선취현유활성초，재미분반응장치상고찰연기조분대흡부류용적영향급SO2농도대흡부량、흡부속도적영향。시험결과표명：연기조분중SO2、양、수증기체적분수증가유리우제고활성초흡부류용，이수상층온도적승고，활성초흡부류용강저。활성초흡부부합Bangham흡부속솔모형，채용교고SO2체적분수적모의시험기체，흡부속도쇠감흔쾌，장상용대과립활성초파쇄지2~3 mm，재SO2위10000×10－6적모의시험기체공황적조건하흡부，흡부4 h후，기흡부류용증량소우5%，가장기4 h흡부SO2량작위활성초적흡부류용。
In order to evaluate the desulfurization characteristics of activated coke,the effects of flue gas composition on adsorption capacity and the influence of SO2 concentration on adsorption and adsorption rate were studied using differential reaction equipments. The results in-dicated that the adsorption capacity of activated coke increased with the rise of SO2 ,O2 water vapor volume fraction in flue dust,while bed temperature rise reduced the adsorption capacity. The adsorption of activated coke obeyed the model of Bangham adsorption rate. The ad-sorption velocity dropped very quickly when the volume rate of SO2 was higher. So the commercial activated coke with large granular was crushed to 2 mm to 3 mm. The volume rate of SO2 was set to 10000×10-6 in the simulation experiment,the increment of adsorption ca-pacity was below 5% after 4 hours. A four-hour SO2 adsorption could be considered as the adsorption capacity of activated coke.
