ICS 71.100.99 CCS G 74 中华人民共和国石油化工行业标准 NB/SH/T 6075—2023 催化裂化催化剂形貌的测定 动态图像法 Test method for fluid catalytic cracking catalyst morphology — Dynamic image analysis 2023-02-06发布 2023-08-06实施 NB/SH/T 6075—2023 I 目 次 前言 ······························································································································I I 1 范 围 ························································································································· 1 2 规范性引用文件 ·········································································································· 1 3 术语和定义 ················································································································ 1 4 方法概要 ··················································································································· 2 5 仪 器 ························································································································· 3 5.1 颗粒形貌分析仪 ····································································································· 3 5.2 旋转分样仪 ··········································································································· 3 6 仪器校准 ··················································································································· 3 7 取 样 ························································································································· 4 8 试验步骤 ··················································································································· 4 8.1 样品预分散 ··········································································································· 4 8.2 分散进样 ·············································································································· 4 8.3 收集数据 ·············································································································· 4 9 计 算 ························································································································· 4 10 结果表示 ·················································································································· 4 11 精密度 ····················································································································· 4 11.1 概 述 ··················································································································· 4 11.2 重复性（ r）········································································································ 5 11.3 再现性（ R）········································································································ 5 附录 A（资料性） 颗粒形貌分析仪参考测试条件 ································································· 6 参考文献 ························································································································ 7 NB/SH/T 6075—2023 II 前 言 本文件按照 GB/T 1.1 —2020《标准化工作导则 第1部分：标准化文件的结构和起草规则》的规定 起草。 请注意本文件的某些内容可能涉及专利。本文件的发布机构不承担识别专利的责任。 本文件由中国石油化工集团有限公司提出。 本文件由全国石油产品和润滑剂标准化技术委员会石油燃料和润滑剂分技术委员会 （SAC/TC280/SC1 ）归口。 本文件起草单位：中国石油化工股份有限公司石油化工科学研究院、中国石化催化剂有限公司。 本文件主要起草人：郭瑶庆、李叶、吕伟娇、徐奇、郭晓峰、冯磊、王瑞青。 本文件为 2023年首次发布。 NB/SH/T 6075—2023 1 催化裂化催化剂形貌的测定 动态图像法 警告：本文件的使用可能涉及某些有危险性的材料、操作和设备。但并未对所有安全问题都提出建 议。因此，用户在使用本文件之前应建立适当的安全防护措施，并确定相关规章限制的适用性。 1 范围 本文件描述了使用动态图像法测定催化裂化催化剂微球形貌的试验方法。 本文件适用于表征催化裂化催化剂粒径从 2μm～300μm的颗粒与球的接近程度。其他流化床微球 催化剂的形貌仍然可以使用本文件进行测定，如 S Zorb吸附剂、 MTO催化剂等，但本文件未给出其测 定结果的精密度。 2 规范性引用文件 下列文件中的内容通过文中的规范性引用而构成本文件必不可少的条款。 其中，注日期的引用文件， 仅该日期对应的版本适用于本文件；不注日期的引用文件，其最新版本（包括所有的修改单）适用于本 文件。 GB/T 21649.1 —2008 粒度分析图像分析法 第1部分：静态图像分析法 GB/T 21649.2 —2017 粒度分析图像分析法 第2部分：动态图像分析法 NB/SH/T 0960 催化裂化催化剂、助剂和吸附剂采样法 3 术语和定义 下列术语和定义适用于本文件。 3.1 Feret直径 Feret diameter XFeret 指与颗粒图像轮廓两边相切的平行线之间的垂直距离。取 32个方向的所有 Feret直径中的最大值 为XFeret,max。示意图见图 1。 [来源： GB/T 21649.1 —2008定义 3.1.6，有修改 ] 3.2 切割弦长 chord Xc