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OCTOBER 2003 ASTM D32 CATALYST COMMITTEE NEWS The committee has about 40 approved methods (published in ASTM methods volume 05.05) under its jurisdiction and others under development. Technical discussions from recent meetings are summarized below in section 2. Please contact the appropriate sub-committee chair for more information. The committee is comprised of nearly seventy members representing over forty international users, producers, and academics interested in catalysis We welcome new members to help develop new methods and participate in inter-laboratory round robins. Please join us at our next meeting; we have methods under development needing your participation. Please see the ASTM home page for membership information. Membership is not necessary for you to contribute ideas, participate in round-robin testing, etc. Contact any officer or sub-committee chairs if you’re interested in working with us. D32 Publications: “Characterization and Catalyst Development. An Interactive Approach”, ACS Symposium Series 411 (1989) Section 1. Meeting Highlights & Committee Activities The fall meeting of ASTM committee D-32 met October 20-22, 2003 in Tampa, FL. Committee minutes are available to D32 members via the web site. Committee Officers: Chairman: Vice Chairman – User: Vice Chairman – Producer: Secretary: Membership Secretary: Thomas Szymanski, Saint Gobain Jefrey T. Elks, Exxon Mobil Steven A. Bradley, UOP Research Center Marshall J. Margolis, ABB Lummus Global Inc. Thomas E. Block, Azko Nobel Catalysts LLC Future D32 Meetings (cw) = ASTM Committee Weeks; See the ASTM web site for registration information Next Meeting April 19-21, 2004 October 4-5, 2004 April 18-20, 2005 October 17-19, 2005 April 24-26, 2006 October 23-25, 2006 Salt Lake City, UT (cw) Washington DC (cw) Reno, NV (cw) Dallas, TX (cw) Toronto, Ontario (cw) Atlanta, GA (cw) FCC Workshop: This has been proposed for the October 2005 Dallas meeting. A task force has been established to define the structure, content, and potential collaborators. Interested individuals should contact the D32 ASTM staff manager, Diane Rehiel ([email protected]), for further information Strategies for Growth: Various proposals are under discussion to expand the committee’s methods development scope and to develop synergistic relationships other with groups having common interests. Possibilities include: Gulf Coast Conference, North American Catalyst Association, CATCON, and other ASTM Committees. Section 2. Summary of our current technical activities Physical-Chemical Properties (D32.01) Chair: Jeffrey C. Kenvin / Micromeritics / tel: 770-662-3665 Methods successfully balloted and released for publication: D 3663: "Test Method for Surface Area of Catalysts" D 3908: "Test Method for Hydrogen Chemisorption on Supported Platinum in Alumina Catalysts by Volumetric Vacuum Method" D 4222: "Test Method for Determination of Nitrogen Adsorption and Desorption Isotherms of Catalysts by Static Volumetric Measurements" D 4567: "Test Method for Single Point Determination of Specific Surface Area of Catalysts Using Nitrogen Adsorption by Continuous Flow" D 4824: "Test Method for Determination of Catalyst Acidity by Ammonia Chemisorption" Methods Under Development (round robin/input by interested parties needed) Z 9864: "CO Chemisorption by Continuous and Static Volumetric Techniques for Monometallic and Bimetallic Noble Metals Catalysts" Z 6347: "Standard Test Method for the Determination of Acid Strength and Acid Site Density By Ammonia Temperature Programmed Desorption" - Inadvertently dropped from the D32.01 work list. This will be registered as a new work item after the method is further reviewed. A second round robin may be required based on review of the method. Catalyst Acidity and Acid Strength Distribution by Ammonia Temperature Programmed Desorption "External" or "Matrix" Acidity of Catalysts by Temperature Programmed Desorption Determination of Lewis and Bronsted acidity using TMPO, IPA, Pyridine Oxygen/hydrogen titration method Physical-Mechanical Properties (D32.02) Chair: Jeffrey T. Elks / ExxonMobil Research & Development Labs / tel: 908-730-2201 Method to be revised/reballoted: D 6761-02: "Standard Test Method for the Determination of the Total Pore Volume of Catalysts and Catalyst Carriers" - Negatives and comments deemed persuasive. Some revisions were not reflected in the balloted document. Corrected version will be re-balloted in next cycle. Methods successfully balloted and released for publication: D 4164-99: "Standard Test Method for Mechanically Tapped Packing Density of Formed Catalyst and Catalyst Carriers" D 4180-99: "Standard Test Method for Vibratory Packing Density of Formed Catalyst Particles and Catalyst Carriers" D 4512-99: "Standard Test Method for Vibrated Apparent Packing Density of Fine Catalyst and Catalyst Carrier Particles and Powder" D 4699-99: "Standard Test Method for Vibratory Packing Density of Large Formed Catalyst and Catalyst Carrier Particles" D 4781-99: "Standard Test Method for Mechanically Tapped Packing Density of Fine Catalyst Particles and Catalyst Carrier Particles" D 6175: "Method of Radial Crush Strength of Extruded Catalyst Particles" - Round robin planned to provide compatibility testing, define sample preparation. Research report to be reviewed with statistician to determine if smaller population can be used. Review of past data suggests possible calcination effects. Expand reported results to include number of particles tested and number of particles excluded from sample (too weak or strong to be measured by device) Under Development (round robin/input by interested parties needed) Z 8216: "Standard Test Method for Determination of Water Pore Volume of Catalyst and Catalyst Carriers by Centrifugation" - Status of round robin and task group activity underway. Z 4448: "Standard Test Method for Determination of Attrition and Abrasion of Powdered Catalyst by Jet Cup" - volunteer participants continue to change. Proposed Practice for the determination of “Bulk Crush of Catalyst and Catalyst Carriers” (rather than a standard test method) will remain as a STM since "reportable" data are generated. Proposed Guide for the determination of particle strength using accepted techniques including bulk crush, individual particle, drop testing, etc. - a compendium document of pertinent literature references and guidelines for conducting these measurements. Recent compilation of individual particle strength data from different devices and with different jaw configurations to be included. Z 8477: "Standard Test Method for Determination of Crush Strength of Low Surface Area Catalysts and Catalyst Carriers by Drop Test into a Container" - Potential materials for suitability testing identified, scoping results to be developed along with worksheet prior to round robin testing. Z 8478: "Standard Test Method for Determination of Individual Particle Strength of Low Surface Area Catalysts and Catalyst Carriers by Drop Test onto a Steel Plate" - Potential materials for suitability testing identified, scoping results to be developed along with worksheet prior to round robin testing. Proposed Method for Determination of Length to Diameter Ratio of Small Extruded Catalyst Particles Round robin materials selected and testing protocol developed, round robin activity delayed pending draft of optical imaging method for concurrent testing with physical measurement method. Proposed method for the Determination of Particle Strength Using a Single Point of Contact is under evaluation to determine technical applicability before advancement to draft status and/or round robin testing. Data generated comparing 1/8-inch anvil, full plate and half-cylinder jaw designs was reviewed. Using samples prepared concurrently using a common sampling procedure, data obtained suggested certain designs favor improved strength discrimination. Additional data presented and available in D32.02 minutes. Discussion to resume at Fall 2003 meeting. Need Identified for Possible Practice/Guide/Method for Determination of Reactor Density Using Measured Catalyst Properties. Need identified for development of a method to test for “Attrition in Slurry Phase Systems” - generic draft provided to task group chair and under review. Interest in developing method for measuring sphericity of catalysts and catalyst particles. Several instrument vendors currently offering devices to measure oblate vs. prolate dimensions of large particles. This is more a measure of flowability rather than sphericity. Chemical Composition (D32.03) Chair: Raymond L. Jordan / W. R. Grace / tel 410-354-8524 Methods successfully balloted and released for publication: D 1997: “Standard Test Method for Nickel and Vanadium in FCC Equilibrium Catalysts by Hydrofluoric/Sulfuric Acid Decomposition and Atomic Spectroscopic Analysis” Under Development (round robin/input by interested parties needed) Determination of rhenium in reforming catalysts Method for determination of major rare earth elements in FCC catalysts by ICP Method for determination of rare earth elements in FCC catalysts by XRF Guide for the measurement of 29 Elements in FCC Catalysts Guide for the preparation of samples for ICPES analysis by dissolution or fusion techniques Method for determination of ultra-trace precious metals (from additives) in FCC catalysts Catalytic Properties (D32.04) Chair: Robert Andrews / Engelhard / 732-205-5133 Workshop Presentations October, 1998: “Fluid-Bed Testing for FCC” presented by J.C. Kayser and J. O. Cozard October, 1999: Siauw Ng / CANMET made a presentation on use of fluid bed methods for FCC evaluations Ballot Items / Revisions in Progress D3907-92, Standard Method for Testing Fluid Catalytic Cracking (FCC) Catalysts by Microactivity Test successfully reinstated with original STM number D5154-91, Standard Test Method for Determining the Activity and Selectivity of fluid Catalytic Cracking (FCC) Catalysts by Microactivity - successfully reinstated with original STM number Under Development (round robin/input by interested parties needed) Methodology for FCC catalyst metals impregnation and deactivation Standard guide for Determination of the Metals Tolerance of Fresh Fluid Cracking Catalysts Interest in developing a fixed fluidized bed Microactivity method for evaluation of FCC catalysts Development of fixed fluidized bed Microactivity testing workshop; date to be determined. Zeolites (D32-05) Chair: George E. McKedy / Multisorb Technologies Inc / tel 716-824-8900 This sub-committee needs more active members. Please contact ASTM or sub-committee chair if you are interested in participating. Under Development (round robin/input by interested parties needed) A draft method has been prepared for determination of relative crystallinity of mordenite zeolite by x-ray diffraction. Participants included UOP, United Catalyst, Shell, Arco, Akzo, and W.R. Grace A test method to determine relative crystallinty of zeolite Beta by X-ray diffraction Section 3. Technical questions for the catalyst characterization community Seeking Methods: Does anyone have a method for the in situ determination of bulk density of a packed catalyst bed within a reactor? What techniques are used for determining catalyst attrition in a liquid phase? What metals deactivation procedures are in use for FCC catalyst testing? Determination “roundness” of packed bed size spherical particles Other than steaming, with or without metals, what methods are in use for deactivation of FCC catalysts for laboratory performance testing? Are users of fluid bed “MAT” reactors interested in developing a standard method for this type of FCC catalyst performance testing? A method for determination of bulk crush strength Seeking Information: Does anyone use a synthetic hydrocarbon blend for either standard or fluid bed “MAT” evaluation of FCC catalysts? Any suggestions or comments on this approach? What companies or organizations might be interested in distributing reference materials used to develop ASTM methods? Is there a source for 1/32” trilobe catalyst supports?