公开(公告)号：US5779464A

公开(公告)日：1998-07-14

申请号：US584089

申请日：1996-01-10

申请人： Liang-Shih Fan ,  Abhijit Ghosh-Dastidar ,  Suhas Mahuli

发明人： Liang-Shih Fan ,  Abhijit Ghosh-Dastidar ,  Suhas Mahuli

IPC分类号： B01D53/50 ,  B01J20/04 ,  C01B17/56 ,  C01F11/18 ,  B01J8/00 ,  B01J20/00 ,  C02F1/42

CPC分类号： C01F11/181 ,  B01D53/508 ,  B01J20/043 ,  B01J20/223 ,  B01J20/28059 ,  B01J20/28071 ,  B01J20/3085 ,  C22B3/24 ,  B01D2251/404 ,  B01D2251/606 ,  B01J2220/46 ,  C01P2006/12 ,  Y02P10/234 ,  Y10S502/514

摘要： A novel CaCO.sub.3 sorbent with its physical properties tailored for high SO.sub.2 removal is produced in accordance with the present invention. The surface area, porosity and the distribution of pore sizes of the sorbent have been designed and controlled to give rise to the optimum internal structure necessary for high SO.sub.2 removal. The CaCO.sub.3 sorbent possesses 60 m.sup.2 /g surface area and 0.18 cc/g pore volume and exhibits extraordinary reactivity towards SO.sub.2 (70% utilization in 530 milliseconds at 1080.degree. C. and 3900 ppm SO.sub.2 concentration) when compared with other carbonate and hydrate sorbents in our laboratory reactor system. The sorbent may be produced by precipitation in a slurry bubble column reactor system and preferably contains about 2% by weight of a surfactant which is added during its preparation and improves the properties of CaCO.sub.3 in the course of precipitation. The high utilization of this tailored CaCO.sub.3 sorbent makes it a very strong potential sorbent for dry sorbent injection technology.

摘要翻译： 根据本发明产生了具有适于高SO 2去除的物理性质的新型CaCO3吸附剂。 已经设计和控制了吸附剂的表面积，孔隙率和孔径分布，以产生高SO 2去除所需的最佳内部结构。 CaCO3吸附剂具有60m 2 / g表面积和0.18cc / g孔体积，并且与其它碳酸盐和水合物吸附剂相比，在SO2（在1080℃530℃和3900ppm SO 2浓度下，70％利用率）表现出非同寻常的反应性 我们的实验室反应堆系统。 吸附剂可以通过在浆液鼓泡塔反应器系统中沉淀来制备，并且优选含有约2重量％的在其制备过程中加入的表面活性剂，并且改善沉淀过程中CaCO 3的性质。 这种定制的CaCO3吸附剂的高利用率使其成为干吸附剂注入技术的非常强的潜在吸附剂。