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GB/T 17475-2020: Standard test method for distillation of heavy hydrocarbon mixtures - Vacuum pot-still method
Status: Valid GB/T 17475: Evolution and historical versions
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Standard test method for distillation of heavy hydrocarbon mixtures - Vacuum pot-still method
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GB/T 17475-2020
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| GB/T 17475-1998 | English | RFQ |
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Standard test method for distillation of heavy hydrocarbon mixtures (Vacuum potstill method)
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Basic data | Standard ID | GB/T 17475-2020 (GB/T17475-2020) | | Description (Translated English) | Standard test method for distillation of heavy hydrocarbon mixtures - Vacuum pot-still method | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | E30 | | Classification of International Standard | 75.080 | | Word Count Estimation | 33,330 | | Date of Issue | 2020-03-31 | | Date of Implementation | 2020-10-01 | | Issuing agency(ies) | State Administration for Market Regulation, China National Standardization Administration | GB/T 17475-2020: Standard test method for distillation of heavy hydrocarbon mixtures - Vacuum pot-still method
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Standard test method for distillation of heavy hydrocarbon mixtures - Vacuum pot-still method
ICS 75.080
E30
National Standards of People's Republic of China
Replace GB/T 17475-1998
Distillation test of heavy hydrocarbon mixtures. Vacuum still distillation method
2020-03-31 released
2020-10-01 implementation
State Administration for Market Regulation
Issued by the National Standardization Management Committee
Table of contents
Preface Ⅲ
Introduction Ⅳ
1 Scope 1
2 Normative references 1
3 Terms and definitions 1
4 Method summary 2
5 Instrument 3
6 Sampling 10
7 Instrument preparation 10
8 Test procedure 10
9 Calculation 14
10 Report 14
11 Precision and Bias 17
Appendix A (Normative Appendix) Measurement Method of Temperature Response Time 18
Appendix B (Normative Appendix) Sensor Calibration Method 19
Appendix C (Normative Appendix) Dehydration test of water-bearing oil samples 24
Appendix D (Normative Appendix) Conversion Method of Observation Temperature of Decompression Steam and Atmospheric Temperature (AET) 26
Appendix E (Normative Appendix) Method for Measuring Net Detention 29
Foreword
This standard was drafted in accordance with the rules given in GB/T 1.1-2009.
This standard replaces GB/T 17475-1998 "Test Method for Distillation of Heavy Hydrocarbon Mixtures (Vacuum Pot Distillation Method)". This standard and
Compared with GB/T 17475-1998, in addition to editorial changes, the main changes are as follows.
---Added requirements on the accuracy, type and calibration rules of the temperature sensor (see 5.5.4);
---Added content, describing the types of pressure sensors that can be used during the test and the calibration requirements of pressure sensors
(See 5.5.6);
--- Added the dynamic pressure reduction program described (see 8.12);
--- Added a stepped pressure reduction program (see 8.6, 8.18);
---Added a description of the situation that the distillation needs to be stopped immediately (see 8.20);
---Modified Appendix B about the temperature and pressure sensor calibration content (see Appendix B B.2, B.3,.1998 edition Appendix B,
Appendix C);
---Revised part of the marked content in Figure B.1 (see Figure B.1,.1998 layout B.1);
---Modified the formula (D.1), formula (D.2), formula (D.3), formula (D.4), and formula (D.5) in Appendix D regarding the conversion of the observation temperature under reduced pressure to constant
Press down the content of the corresponding temperature and the content of formula (D.6) in Appendix D, and modify the definition of D in formula (D.6) (see Appendix D,
Appendix E) of the.1998 edition.
This standard was proposed and managed by the National Petroleum Products and Lubricants Standardization Technical Committee (SAC/TC280).
Drafting organizations of this standard. China Petroleum & Chemical Corporation Research Institute of Petrochemical Technology, Daqing Oilfield Engineering Co., Ltd.
Luoyang Technology R&D Center of Petrochemical Engineering (Group) Co., Ltd., China National Offshore Oil Group Co., Ltd. Refining and Chemical Research Institute,
China Petroleum & Chemical Corporation Tianjin Branch, China Petroleum Fuel Oil Co., Ltd. Research Institute.
The main drafters of this standard. Zhu Xinyu, Fan Dengli, Song Shouguo, She Qinglong, Hu Yanfang, Huang Shaokai, Zhong Guangwen, Duan Yongsheng.
The previous versions of the standard replaced by this standard are as follows.
---GB/T 17475-1998.
Introduction
This standard is one of the test methods that guide refineries or traders to characterize the characteristics of heavy hydrocarbon mixtures. It provides an estimate of the range of different boiling points.
Method to determine the yield of confined fractions.
The fractions obtained in this standard can be used alone or in combination with other fractions to prepare samples for analysis, research and quality assessment.
Distillation test of heavy hydrocarbon mixtures. Vacuum still distillation method
Warning---Personnel using this standard should have practical experience in formal laboratory work. The use of this standard may involve certain dangerous
For materials, equipment and operations, this standard does not point out all possible safety issues. The user is responsible for taking appropriate safety and health measures
And ensure compliance with the conditions stipulated by relevant national laws and regulations.
1 Scope
This standard specifies the method summary, equipment, sampling, equipment preparation, and test procedures for the distillation test of heavy hydrocarbon mixtures by the vacuum still distillation method.
Steps, calculation of results, reporting, precision and deviation.
This standard is applicable to heavy hydrocarbon mixtures such as heavy crude oil, petroleum distillate and residual oil with an initial boiling point higher than 150°C and a final boiling point lower than 565°C
And the distillation process of synthetic oil. The preparation of gas oil and lubricating oil distillate samples can refer to this standard. This standard can also be used to prepare production bitumen
Green residual oil, but not always suitable, the long-term thermal cracking that occurred in this test may change some of its properties.
Note 1.The maximum cutting temperature is related to the heating limit of the sample. For most samples, 565℃ is the highest cutting temperature that can be reached, but for heat sensitive
For sensitive samples, the maximum cutting temperature will be significantly lower than 565℃. Similarly, for heat-insensitive samples, the maximum cutting temperature can be slightly higher than 565℃.
Note 2.The test method specified in GB/T 17280 can also be used for the distillation of crude oil before the cutting point 400℃. But with the distillation curve obtained using this standard
And the properties of the distillate are not directly comparable.
2 Normative references
The following documents are indispensable for the application of this document. For dated reference documents, only the dated version applies to this article
Pieces. For undated references, the latest version (including all amendments) applies to this document.
GB/T 1884 Laboratory method for determination of density of crude oil and liquid petroleum products (densimeter method)
GB/T 1885 Petroleum Meter
GB/T 4756 Manual sampling method for petroleum liquids
GB/T 13377 Determination of density or relative density of crude oil and liquid or solid petroleum products
Double capillary pycnometer method
GB/T 17280 Crude Oil Distillation Standard Test Method 15-Theoretical Tray Distillation Column
3 Terms and definitions
The following terms and definitions apply to this document.
3.1
Boil-uprate
The amount of steam entering the distillation head per unit time.
Note. The evaporation rate is approximately equal to the distillation rate, and the difference is caused by heat loss. When the evaporation rate is given the inner diameter of the distillation head, it is generally used in milliliters per hour
The number (mL/h) is expressed. Sometimes for the sake of comparison, it is also expressed in milliliters per square centimeter per hour [mL/(h·cm2)].
3.2
Condense
It is connected with the outlet of the distillation head, where the distillate is condensed.
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