What is the significance of determining the carbon residue of petroleum products for production and application?

What is the significance of determining the carbon residue of petroleum products for production and application?

Core Significance of Petroleum Product Residue Analysis in Production and Application

I. Quality Control & Process Optimization

1. Refining Degree Assessment
Residue value reflects the content of unstable compounds (e.g., asphaltenes) in oil products. Higher refining degree correlates with lower residue values in lubricating oils. For instance, excessive residue in FCC feedstock can cause coke deposition, impairing catalyst activity.

2. Coking Tendency Prediction
Heavy fuel oil residue directly links to coking risks during use. Each 1% reduction in residue decreases coke formation by ~5%.

II. Product Performance Correlation

1. Combustion Efficiency Indicator
When diesel 10% distillation residue exceeds 0.3%, engine carbon deposition risks surge, potentially causing injector clogging and poor heat dissipation.

2. Environmental Compliance
Low-residue oils reduce particulate emissions by 20%, meeting China VI emission standards.

III. Economic & Safety Benefits

1. Coking Process Control
Coking feedstock residue shows positive correlation with coke yield. Each 0.5% increase boosts coke yield by ~1.2%.

2. Equipment Maintenance Cost
Internal combustion oils with residue >0.8% shorten overhauls by 30%.

IV. Standard Method Evolution

The micro-method (GB/T 17144), with high automation and minimal sample (0.1-3.5g), is replacing Conradson. Its deviation is <±0.15%. NIM has developed 6 micro-method reference materials for residue instrument metrology.

SD30011 Digital electric furnace carbon residue meter is designed and manufactured according to the requirements of the industry standard SH/TO170 "Carbon residue determination method (electric furnace method)" of the People's Republic of China. It is suitable for the determination of carbon residue of lubricating oil, heavy liquid fuel or other petroleum products according to the test method of SH/TO170 standard.

the instrument adopts integrated structure design, heating furnace and controller constitute a complete whole, novel and beautiful.

Adopt digital temperature controller, with main heating and auxiliary heating functions, according to the need of auxiliary heating can be automatically controlled, but also manual control, easy to use.

The temperature of the heating furnace can reach 520℃, and the temperature control accuracy can reach ±5℃ in the full temperature control range, which meets the requirements of the test.

the instrument for the table structure, a furnace of four holes, can be placed at the same time four samples at the same time test, test efficiency is high.