孔隙结构对石灰石脱硫性能的影响  

The Influence of Pore Structure on the Desulfurization Performance of Limestone

作　　者：刘现卓[1] 赵长遂[1] 钱晓东[1] 吴新[1] 

机构地区：[1]东南大学洁净煤发电及燃烧技术教育部重点实验室,江苏南京210096

出　　处：《热能动力工程》2004年第1期77-80,共4页Journal of Engineering for Thermal Energy and Power

基　　金：国家重点基础研究基金资助项目 (G19990 2 2 2 0 1-0 4)

摘　　要：将在固体颗粒孔径增扩仪上进行孔径闪蒸增扩后的石灰石颗粒 ,在气流反应器上进行了脱硫试验研究。结果表明 ,石灰石孔径增扩后 ,由于孔隙之间的交联性得到了提高 ,对反应气体的输运性能得到了较大的改善 ,减少了热解过程中烧结的影响 ,提高了孔隙内表面积的脱硫活性 ,所以在相同的试验条件下 。After undergoing flashing and expansion on a solid-particle pore diameter expansion device limestone particles were investigated for their desulfurization performance on a gas-flow reactor. The results of the investigation indicate that after expansion of the limestone pore diameter there was a relatively great improvement of the transport properties of reaction gases due to an enhancement in the cross-linking quality among the pores, thus decreasing the influence of sintering in the pyrolysis process. As a result, the desulfurization activity in the pore inner surface has increased. Hence, under identical test conditions after the expansion of the pore diameter there will be a significant increase in the desulfurization efficiency of the limestone.

关 键 词：闪蒸 石灰石 孔结构 脱硫 

分 类 号：X701.3[环境科学与工程—环境工程]