T/CPCIF 0195-2022 Active Group standards

T/CPCIF 0195-2022 Rapid determination of key properties of crude oil by near-infrared spectroscopy

Publish Date: 2022-04-14 Implement Date: 2022-07-15 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

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Basic Information

Standard Code: T/CPCIF 0195-2022

Standard Type: Group standards

Standard Status: Active

is_force_gb: no

CCS Name: Oil

ICS Name: Crude oil

Publish Date: 2022-04-14

Implement Date: 2022-07-15

Scope

Scope: This document specifies the test method for rapidly determining the 20 °C density, sulfur content, acid value, and actual boiling point yield of crude oil using near-infrared spectroscopy. This document is applicable to crude oil with a water content not exceeding 0.5% (by mass). For samples with a water content exceeding 0.5% (by mass), the samples should be dewatered before testing. This document is applicable to crude oil samples with a 20 °C density range of 730 kg/m3 to 940 kg/m3, a sulfur content range of 0.03% to 3% (by mass), and an acid value range of 0.1 mg/g to 1.7 mg/g. Crude oil samples exceeding the measurement range specified in this document can be referenced for implementation, but the precision has not been verified. Main technical content: By utilizing the differences in the absorption characteristics of near-infrared light caused by the vibration or rotation of different hydrogen-containing groups in crude oil, chemicalometric methods such as principal component regression, partial least squares, pattern recognition, and topology are used to establish linear or non-linear models between the crude oil spectrum and its properties. These models are then used to determine the 20 °C density, sulfur content, acid value, and actual boiling point yield of crude oil samples.