会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 3. 发明申请
    • Attrition Resistant Particulate Catalyst
    • 耐磨颗粒催化剂
    • US20090124496A1
    • 2009-05-14
    • US11666775
    • 2005-11-02
    • Gerardus Petrus Lambertus NiesenAndre Harmen Sijpkes
    • Gerardus Petrus Lambertus NiesenAndre Harmen Sijpkes
    • B01J21/04
    • C10G2/331B01J21/06B01J21/063B01J23/75B01J23/8892B01J35/023B01J37/0045C10G49/02
    • A spray dried particulate catalyst comprising a catalytically active component, a carrier and optionally a catalyst promoter, is described. The catalyst has a decrease in average particle diameter following the Shear Test as described herein of 25% or less. The fraction of catalyst particles being less than 10 μm in size, can also be less than 20%. The present invention also provides a method of manufacturing a particulate catalyst material comprising preparing an aqueous slurry, spray drying the aqueous slurry using a spray drier with an inlet temperature of less than 300° C., and calcining the particulate obtained. The invention has found that catalyst strength may be improved by careful manipulation of the spray drying conditions. In particular, it has been found that a catalyst that is spray dried at a relatively low gas inlet temperature, preferably in the range of 200° C. to 250° C., shows advantageous attrition characteristics (in terms of attrition resistance) compared to catalysts prepared by spray drying at higher temperatures.
    • 描述了包含催化活性组分,载体和任选的催化剂促进剂的喷雾干燥的颗粒催化剂。 如本文所述的剪切试验后,催化剂的平均粒径降低了25%以下。 小于10um的催化剂颗粒的分数也可以小于20%。 本发明还提供一种制造颗粒状催化剂材料的方法,包括制备含水浆料,使用入口温度低于300℃的喷雾干燥器喷雾干燥含水浆料,并煅烧所获得的颗粒。 本发明已经发现,通过仔细操作喷雾干燥条件可以提高催化剂强度。 特别地,已经发现在相对较低的气体入口温度下,优选在200℃至250℃的范围内喷雾干燥的催化剂显示出有利的磨损特性(在抗磨损方面)与 通过在较高温度下喷雾干燥制备的催化剂。