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Standard Test Method for Determination of Intrinsic Stability of Asphaltene-Containing Residues, Heavy Fuel Oils, and Crude Oils (n-Heptane Phase Separation; Optical Detection)
Přeložit název
NORMA vydána dne 1.3.2023
Označení normy: ASTM D7157-23
Datum vydání normy: 1.3.2023
Kód zboží: NS-1136876
Počet stran: 13
Přibližná hmotnost: 39 g (0.09 liber)
Země: Americká technická norma
Kategorie: Technické normy ASTM
Keywords:
asphaltenes, compatibility, crude oil, heavy fuels oils, intrinsic stability, phase separation, residual oil, S-value,, ICS Number Code 75.040 (Crude petroleum)
Significance and Use | ||||||||||||||||
5.1?This test method describes a sensitive method for estimating the intrinsic stability of an oil. The intrinsic stability is expressed as 5.2?This test method can be used by petroleum refiners to control and optimize the refinery processes and by blenders and marketers to assess the intrinsic stability of blended asphaltene-containing heavy fuel oils. |
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1. Scope | ||||||||||||||||
1.1?This test method covers procedures for quantifying the intrinsic stability of the asphaltenes in an oil by automatic instruments using optical detection. 1.2?This test method is applicable to residual products from thermal and hydrocracking processes, to products typical of Specifications D396 Grades No. 5L, 5H, and 6, and D2880 Grades No. 3-GT and 4-GT, and to crude oils, providing these products contain 0.5 % by mass or greater concentration of asphaltenes (see Test Method D6560). 1.3?This test method quantifies asphaltene stability in terms of state of peptization of the asphaltenes (S-value), intrinsic stability of the oily medium (1.4?The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard. 1.5?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, health, and environmental practices and determine the applicability of regulatory limitations prior to use. 1.6?This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee. |
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2. Referenced Documents | ||||||||||||||||
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Poslední aktualizace: 08.12.2023 (Počet položek: 2 860 157)
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