摘要
高温煤气脱硫净化是目前先进洁净煤利用技术之一 ,但是以前高温煤气脱硫剂在多次硫化再生循环过程中出现粉化 ,妨碍脱硫剂进一步使用 .本研究选择钢厂赤泥作为脱硫剂原料 ,添加不同活性组分和防粉化结构助剂 ,制备了氧化铁基高温煤气脱硫剂 .经过 1 0次硫化 /再生循环实验 .结果表明 :1 0次循环累计 1 96.98% ,再生后脱硫活性不发生变化 ,具有较高和较稳定的脱硫活性 .再生后脱硫剂的机械强度高于新鲜样品 ,在使用过程中没有出现粉化现象 ,这为氧化铁基高温煤气脱硫剂的工业化研究提供了可靠的依据 .
The technology of sulfur removal at high temperatures from the fuel gas delivered from coal can be used in the IGCC(put detailed words for IGCC here) process.However,significant part of the desulfurizer granules has been broken into pieces during sulfidation/regeneration,leading to improper use of the desulfurizer and therefore,poor efficiency of desulfurization.To solve this problem,this study develops a new procedure to prepare the desulfurizer granules from the red mud from iron and steel plants by adding different active components and structure axillaries.The new granules have not been broken after 10 cycles.Nevertheless,the strength became even larger after use and the high activity of sulfur removal maintained.The accumulative sulfur capacity of the desulfurizer is as high as 196.98% for 10 cycles.This study provides reliable data for the scaling-up of the desulfurizer production.
出处
《煤炭转化》
CAS
CSCD
北大核心
2004年第2期54-56,共3页
Coal Conversion
基金
国家重大基础研究发展规划项目 973子课题 ( G19990 2 2 10 4)
国家自然科学基金资助项目 ( 2 99760 2 9)
关键词
煤气
脱硫剂
脱硫净化技术
脱硫效率
机械强度
温度
desulfurizer sorbent,sulfur capacity,desulfurizing efficiency,mechanical strength
