ASTM D3907/D3907M-13
(Test Method)Standard Test Method for Testing Fluid Catalytic Cracking (FCC) Catalysts by Microactivity Test
Standard Test Method for Testing Fluid Catalytic Cracking (FCC) Catalysts by Microactivity Test
SIGNIFICANCE AND USE
5.1 The microactivity test provides data to assess the relative performance of FCC catalyst. Because results are affected by catalyst pretreatment, feedstock characteristics, test equipment, and operating parameters, adherence to this test method is a prerequisite for correct interpretation of results. Apparatus, test conditions, and analytical procedures actually used should closely resemble those described in this test method.
5.2 Caution should be used in interpreting results above 80 weight % conversion due to the significance of overcracking.
SCOPE
1.1 This test method covers determining the activity of equilibrium or laboratory-deactivated fluid catalytic cracking (FCC) catalysts, or both. This is evaluated on the basis of weight percent conversion of gas oil in a microactivity unit. The selectivity of FCC catalysts can be determined using Test Method D5154.
1.2 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in non-conformance with the standard.
1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.
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Designation: D3907/D3907M − 13
Standard Test Method for
Testing Fluid Catalytic Cracking (FCC) Catalysts by
1
Microactivity Test
This standard is issued under the fixed designation D3907/D3907M; the number immediately following the designation indicates the
year of original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last
reapproval. A superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope 3. Terminology
1.1 This test method covers determining the activity of 3.1 Definitions of Terms Specific to This Standard:
equilibrium or laboratory-deactivated fluid catalytic cracking 3.1.1 ASTM consensus mean conversion—each reference
(FCC) catalysts, or both. This is evaluated on the basis of catalyst has a consensus mean conversion value assigned to it
weight percent conversion of gas oil in a microactivity unit. by Committee D32 (see 11.2).
The selectivity of FCC catalysts can be determined using Test
3.1.2 ASTM reference catalysts—a set of equilibrium fluid
Method D5154.
cracking catalysts with conversions within the useful range of
this test method is used to improve the reproducibility of test
1.2 The values stated in either SI units or inch-pound units
results between different laboratories. Samples of the ASTM
are to be regarded separately as standard. The values stated in
reference catalysts can be obtained from NIST.
each system may not be exact equivalents; therefore, each
system shall be used independently of the other. Combining
3.1.3 ASTM standard feed—aspecificbatchofgasoilthatis
values from the two systems may result in non-conformance
used as feedstock in the described test method. This standard
with the standard.
feed can be obtained from the National Institute of Standards
3
and Technology (NIST).
1.3 This standard does not purport to address all of the
safety concerns, if any, associated with its use. It is the
3.1.4 conversion calibration curve—a calibration curve can
responsibility of the user of this standard to establish appro-
be obtained by plotting the consensus mean conversion values
priate safety and health practices and determine the applica-
for the ASTM reference catalysts (see 11.2) versus the indi-
bility of regulatory limitations prior to use.
vidual laboratory-measured conversion for the same catalysts.
3.1.5 measured conversion—is calculated as the difference
2. Referenced Documents
between the weight of feed used and the weight of unconverted
2
2.1 ASTM Standards:
material, divided by the weight of feed used, times 100 %. The
D2887 Test Method for Boiling Range Distribution of Pe-
unconverted material is defined as all liquid product with a
troleum Fractions by Gas Chromatography
boiling point above 216°C [421°F].
D5154 TestMethodforDeterminingActivityandSelectivity
of Fluid Catalytic Cracking (FCC) Catalysts by Microac-
4. Summary of Test Method
tivity Test
4.1 A sample of cracking catalyst in a fixed-bed reactor is
E105 Practice for Probability Sampling of Materials
contacted with gas oil (ASTM standard feed). Cracked liquid
E177 Practice for Use of the Terms Precision and Bias in
products are analyzed for unconverted material and the con-
ASTM Test Methods
version is calculated.
E456 Terminology Relating to Quality and Statistics
4.2 A corrected conversion value can be obtained from the
E691 Practice for Conducting an Interlaboratory Study to
measured conversion and the conversion calibration curve.
Determine the Precision of a Test Method
5. Significance and Use
1
This test method is under the jurisdiction of ASTM Committee D32 on
5.1 The microactivity test provides data to assess the rela-
Catalysts and is the direct responsibility of Subcommittee D32.04 on Catalytic
tive performance of FCC catalyst. Because results are affected
Properties.
Current edition approved March 1, 2013. Published March 2013. Originally by catalyst pretreatment, feedstock characteristics, test
approved in 1992. Last previous edition approved in 2008 as D3907–03(2008).
equipment, and operating parameters, adherence to this test
DOI: 10.1520/D3907_D3907M-13.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
3
Standards volume information, refer to the standard’s Document Summary page on Available from National Institute of Standards and Technology (NIST), 100
the ASTM website. Bureau Dr., Stop 3460, Gaithersburg, MD 20899-3460.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1
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D3907/D3907M − 13
method is a prerequisite for correct interpretation of results. calibratedtoachieveaconstanttemperature482 61°C[900 6
Apparatus
...
This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
Designation: D3907 − 03 (Reapproved 2008) D3907/D3907M − 13
Standard Test Method for
Testing Fluid Catalytic Cracking (FCC) Catalysts by
1
Microactivity Test
This standard is issued under the fixed designation D3907;D3907/D3907M; the number immediately following the designation indicates
the year of original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last
reapproval. A superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope
1.1 This test method covers determining the activity of equilibrium or laboratory-deactivated fluid catalytic cracking (FCC)
catalysts, or both. This is evaluated on the basis of weight percent conversion of gas oil in a microactivity unit. The selectivity of
FCC catalysts can be determined using Test Method D5154.
1.2 The values stated in either SI units or inch-pound units are to be regarded separately as the standard. The values given in
parentheses are for information only. stated in each system may not be exact equivalents; therefore, each system shall be used
independently of the other. Combining values from the two systems may result in non-conformance with the standard.
1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility
of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory
limitations prior to use.
2. Referenced Documents
2
2.1 ASTM Standards:
D2887 Test Method for Boiling Range Distribution of Petroleum Fractions by Gas Chromatography
D5154 Test Method for Determining Activity and Selectivity of Fluid Catalytic Cracking (FCC) Catalysts by Microactivity Test
E105 Practice for Probability Sampling of Materials
E177 Practice for Use of the Terms Precision and Bias in ASTM Test Methods
E456 Terminology Relating to Quality and Statistics
E691 Practice for Conducting an Interlaboratory Study to Determine the Precision of a Test Method
3. Terminology
3.1 Definitions of Terms Specific to This Standard:
3.1.1 ASTM consensus mean conversion—each reference catalyst has a consensus mean conversion value assigned to it by
Committee D32 (see 11.2).
3.1.2 ASTM reference catalysts—a set of equilibrium fluid cracking catalysts with conversions within the useful range of this
test method is used to improve the reproducibility of test results between different laboratories. Samples of the ASTM reference
catalysts can be obtained from NIST.
3.1.3 ASTM standard feed—a specific batch of gas oil that is used as feedstock in the described test method. This standard feed
3
can be obtained from the National Institute of Standards and Technology (NIST).
3.1.4 conversion calibration curve—a calibration curve can be obtained by plotting the consensus mean conversion values for
the ASTM reference catalysts (see 11.2) versus the individual laboratory-measured conversion for the same catalysts.
3.1.5 measured conversion—is calculated as the difference between the weight of feed used and the weight of unconverted
material, divided by the weight of feed used, times 100 %. The unconverted material is defined as all liquid product with a boiling
point above 216°C (421°F). [421°F].
1
This test method is under the jurisdiction of ASTM Committee D32 on Catalysts and is the direct responsibility of Subcommittee D32.04 on Catalytic Properties.
Current edition approved April 1, 2008March 1, 2013. Published April 2008 March 2013. Originally approved in 1992. Last previous edition approved in 20032008 as
D3907D3907–03(2008).–03. DOI: 10.1520/D3907-03R08.10.1520/D3907_D3907M-13.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
3
Available from National Institute of Standards and Technology (NIST), 100 Bureau Dr., Stop 3460, Gaithersburg, MD 20899-3460.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1
---------------------- Page: 1 ----------------------
D3907/D3907M − 13
4. Summary of Test Method
4.1 A sample of cracking catalyst in a fixed-bed reactor is contacted with gas oil (ASTM standard feed). Cracked liquid products
are analyzed for unconverted material and the conversion is calculated.
4.2 A corrected conversion value can be obtained from the measured conversio
...
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