UOP 778-07 PDF

Full title and description

Packed Apparent Bulk Density (ABD) of Extruded Catalyst — UOP 778-07 is a UOP test method that specifies the procedure for determining the packed apparent bulk density (ABD) of extruded catalyst particles (designation UOP 778-07).

Abstract

This short method defines the empirical measurement of packed apparent bulk density (mass per unit packed volume) for extruded catalyst particles of specified maximum diameter and length. The procedure provides a reproducible way to report ABD for quality control, inventory, and engineering calculations.

General information

• Status: Active (UOP designation UOP 778-07).
• Publication date: 04 March 2008 (published as UOP 778-07).
• Publisher: Universal Oil Products (UOP).
• ICS / categories: 17.060 (Catalysts and related products).
• Edition / version: Designation -07 (UOP 778-07, 2007/2008 issue).
• Number of pages: 3.

Scope

This method covers the determination of packed apparent bulk density for extruded catalyst particles having approximately up to 3.2 mm (1/8 in) maximum diameter, an average length up to about 9.5 mm (3/8 in), and a maximum individual length near 15.9 mm (5/8 in). The procedure applies to common extruded catalyst shapes and sizes within those limits; for molecular sieves or other hydrophilic materials, UOP method 563 is referenced as the appropriate procedure.

Key topics and requirements

• Definition and units for packed apparent bulk density (ABD) as mass per unit packed volume.
• Sample preparation and conditioning to ensure representative packing (drying, sieving and particle selection where required).
• Specification of acceptable particle size/shape ranges for which the method is valid (max diameter ~3.2 mm, avg length ~9.5 mm, max length ~15.9 mm).
• Procedure for filling, packing and volume determination of the test container to obtain reproducible packed volume.
• Calculation and reporting conventions (mass, packed volume, computed ABD) and precision considerations.
• Cross-reference to UOP 563 for molecular sieves and to related UOP methods for other particle classes.

Typical use and users

Used by catalyst manufacturers, catalyst testing laboratories, refinery and petrochemical process engineers, procurement and quality-control teams to: (1) characterize catalyst bulk properties for loading and bed-design calculations, (2) verify lot-to-lot consistency, and (3) support inventory and packing operations. It is commonly applied during R&D, incoming inspection, and plant catalyst handling.

Related standards

Commonly referenced UOP methods include UOP 563 (Packed Apparent Bulk Density of Molecular Sieves) for hydrophilic sieve materials and other ABD/particle-density methods such as UOP 294 for apparent bulk density of catalyst particles. National and international equivalents or related ASTM/ISO procedures for bulk-density and particle characterization may also be used alongside UOP 778-07.

Keywords

Packed apparent bulk density, ABD, extruded catalyst, catalyst bulk density, particle packing, UOP 778-07, catalyst characterization, quality control.

FAQ

Q: What is this standard?

A: UOP 778-07 is a UOP test method titled "Packed Apparent Bulk Density (ABD) of Extruded Catalyst" that specifies how to measure the packed bulk density of extruded catalyst particles.

Q: What does it cover?

A: It covers sampling, packing, volume determination and calculation steps needed to report the packed apparent bulk density (mass per packed unit volume) for extruded catalyst particles within specified size limits. For molecular sieves or other hydrophilic materials, UOP 563 is the recommended method.

Q: Who typically uses it?

A: Catalyst producers, independent testing labs, refinery process and plant engineers, procurement and QA/QC teams use it to characterize and verify catalyst bulk properties for design, loading and inventory purposes.

Q: Is it current or superseded?

A: The designation UOP 778-07 is published and listed as active in UOP catalogs (publication date shown as 04 March 2008). Users should check with UOP or their standards provider for any later revisions or replacement methods before relying on the procedure.

Q: Is it part of a series?

A: Yes — it is one of several UOP particle/catalyst characterization methods (for example UOP 563, UOP 294 and other ABD/particle density procedures) that together cover different materials and size classes.

Q: What are the key keywords?

A: Packed apparent bulk density, ABD, extruded catalyst, bulk density, particle packing, UOP 778-07, catalyst QA/QC.