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Gasoline oxygen content, benzene, toluene, formaldehyde dedicated chromatograph
Adding ethers, alcohols, oxygen-containing compounds, and formaldehyde to automotive gasoline can increase octane rating and reduce volatility. The ty
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In car usegasolineAdd ethers, alcoholsoxygenatedCompounds andmethylalIt can increase octane rating and reduce volatility. The type and concentration of oxygen-containing compounds added are specified and should be adjusted to ensure that the quality requirements of commercial gasoline are met. The driving force, vapor pressure, phase separation, automobile exhaust emissions, and volatile automobile emissions are all related to the oxygen-containing compounds in the fuel.
The addition of formaldehyde will coincide with tert butanol, resulting in low oxygen content and interference with the determination of oxygen compounds and oxygen content in original automotive gasoline, which may lead to problems such as gasoline engine failure. The content of benzene and toluene is also very important for the quality of gasoline.
OneGasoline oxygen content, benzene, toluene, formaldehyde dedicated chromatographAccording to the standard
GB 17930 "Gasoline for Vehicles"
Clear regulations: No artificial addition is allowed to be made to automotive gasolinemethylalAniline compounds, halogens, and compounds containing phosphorus and silicon.
GB 18351 "Ethanol Gasoline for Vehicles (E10)"
GB/T 22030 "Blended Ethanol Gasoline for Vehicles"
GB/T 23799 "Methanol Gasoline for Vehicles (M85)"
SH/T 0663 "Determination of Alcohol and Ether Content in Gasoline"
SH/T 0693 "Determination of Aromatic Content in Gasoline"
SH/T 0713 "Determination of Benzene and Toluene Content in Automotive Gasoline and Aviation Gasoline (Gas Chromatography Method)"
SH/T 0741 "Determination of hydrocarbon group composition in gasoline"
IIGasoline oxygen content, benzene, toluene, formaldehyde dedicated chromatographDetermination of components and sample composition range:
| Component Name | GB17930-2013 "Gasoline for Vehicles" | Scope of Method Measurement |
| methanol | <0.3% | 0.01%-30% |
| Oxygen-containing organic compoundsa | <2.7% | 0.01%-30% |
| benzene | <1% | 0.01%-50% |
| aromatic hydrocarbon | <40% | |
| alkene | <28% automotive gasoline (III)<30% automotive gasoline (IV) |
Note: The above test objects are 90, 93, and 97 octane gasoline (according to the research octane rating)
| Component Name | GB18351-2013 "Ethanol Gasoline for Vehicles (E10)" | Scope of Method Measurement |
| ethanol | 10.0%±2.0% | 0.01%-30% |
| Other oxygen-containing organic compoundsa | <0.5% | 0.01%-30% |
| benzene | <1% | 0.01%-30% |
| toluene | -- | 0.01%-30% |
| aromatic hydrocarbon | <40% | |
| alkene | <28% |
Component Name |
GB/T 23799-2009 "Methanol Gasoline for Vehicles (M85)" | Scope of Method Measurement |
| Methanol+Polyol | 84%~86% | 70%-95% |
| Multi carbon alcohol | <2% | 0.01%-30% |
Gasoline oxygen content, benzene, toluene, formaldehyde dedicated chromatographConfiguration Introduction：
system configuration
GC-9560 chromatograph
Six way valve injection system
Ten way valve injection system
Pre cut column
analytical column
Y-600 specialized chromatographic workstation for automotive oil
standard gas
Gas source: nitrogen, high-purity hydrogen, dry air
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