Tengzhou Zhongkepu ProductionAutomotive gasoline analysis gas chromatograph analysis systemThe analysis system is designed in strict accordance with the national standards GB/18351-2004 "Automotive Gasoline", SH/T0693-2000 "Determination of Aromatic Content in Gasoline (Gas Chromatography Method)", and SH/T0663-1998 "Determination of Oxygen Compounds in Gasoline (Gas Chromatography Method)", and meets the requirements of the national standards. Determination of oxygen-containing compounds in automotive gasoline; Determination of benzene and its content; Analysis of aromatic hydrocarbons. It is an ideal gas chromatograph for applications in the petrochemical industry, refineries, and quality supervision and inspection related fields.

Automotive gasoline is an energy source, as well as an excellent gasoline quality improver and green oxidant, which can replace the use of MTBE oxygen-containing additives in original gasoline. Due to the serious harm of MTBE to groundwater resources, some developed countries have legislated to prohibit its use. Due to the increase in oxygen content, the oxygen content of the oil reaches 3.5% (m/m), which allows the non combustible parts of the original ordinary gasoline to burn more fully and effectively, reducing and eliminating the formation of automobile exhaust smoke, and reducing the total harmful exhaust emissions of automobiles by more than 33%, which is beneficial for environmental protection. After using automotive gasoline, the vehicle's exhaust emissions meet the standard.

Due to the combustion characteristics of automotive gasoline, it can effectively prevent and eliminate the formation of carbon deposits in spark plugs, combustion chambers, valves, exhaust pipes, mufflers, and other parts, avoiding faults caused by carbon deposits and extending the service life of components.

Automotive gasoline is an organic solvent with excellent performance, which can effectively eliminate the precipitation and condensation of impurities in the fuel tank and oil system, and has a good oil circuit dredging effect, reducing the cost of purchasing additives such as oil passage and fuel essence for cleaning and dredging the oil circuit.

Automotive gasoline has the effect of reducing the dilution of engine oil, prolonging the use time of engine oil, and reducing the frequency of replacement.

Automotive gasoline has excellent anti knock properties, which can effectively eliminate the detonation phenomenon caused by poor combustion and rough engine conditions, reduce operating noise, and minimize the impact of vehicle noise on urban environments.

Automotive gasoline is a new type of clean vehicle fuel that allows the engine to burn under operating conditions, effectively eliminating harmful exhaust emissions and smoke formation, improving the working environment for drivers, and enhancing their overall health. The GC-2020 automotive gasoline analysis gas chromatograph is a domestically developed multidimensional gas chromatography system with independent intellectual property rights (pre cut column/analytical column). A complete and independent analysis system can be used to analyze oxygen-containing compounds, benzene, and aromatic hydrocarbons in gasoline 1. Analysis of oxygen-containing compounds: Add the internal standard ethylene glycol dimethyl ether (DME) to the sample, first enter the TCEP pre cut column, empty the light hydrocarbons, and then switch between methylcyclopentane and methyl tert butyl ether to allow oxygen-containing compounds to enter the WCOT column. After the tert amyl methyl ether flows out, blow back the heavy hydrocarbon components. 2. Benzene and analysis: Add internal standard 2-hexanone to the sample, first enter the TCEP pre cut column, empty C9 and lighter non aromatic hydrocarbons than C9, then switch before benzene flows out, allowing benzene, 2-hexanone to enter the WCOT column. After 2-hexanone flows out, blow back the remaining components (C8 and C8 above aromatic hydrocarbons and C10 and C10 above non aromatic hydrocarbons) Aromatic hydrocarbon analysis: Add the internal standard 2-hexanone to the sample, first enter the TCEP pre cut column, empty benzene, toluene, and non aromatic hydrocarbons less than C12, then switch before ethylbenzene flows out, let the aromatic hydrocarbons enter the WCOT column, wait for the adjacent two to flow out, and then blow back the remaining components (C9 and above aromatic hydrocarbons) into the detector for detection.

System configuration:

Automotive gasoline chromatographconfiguration
GC-2020 Gas Chromatography Host
2. Chromatographic column:
A. Pre cut column TCEP, 0.56m × 0.38mm stainless steel column, 20% TCEP/Chromosorb P (AW) 80-100 mesh
B. Analysis column DB-1 (WCOT), 30m × 0.32mm × 3 μ m, cross-linked methyl silicone quartz capillary column
3. Standard samples:
A. Qualitative standard sample of alcohol ether
B. Single component alcohol ether calibration standard sample
C. Mixed alcohol ether calibration standard sample
D. Alcohol ether internal standard
E. Alcohol ether cutting standard sample
F. Aromatic hydrocarbon qualitative standard sample
G. Single component aromatic hydrocarbon calibration standard sample
H. Mixed aromatic hydrocarbon calibration standard sample
I. Aromatic internal standard
J. Aromatic cutting standard sample
4. Petrochemical chromatography workstation
5. Gas source: high-purity nitrogen, high-purity hydrogen, dry air

Ethanol gasoline chromatographOperating conditions

Ethanol gasoline chromatographDetermination of components and range: