Analytical chromatograph for oxidation and benzene derivatives in gasoline

The use of gasoline causes environmental pollutionour countryRapid economic developmentAnd it has become increasingly serious, especiallymotor vehicleofRapidly increasing, automobile exhaust emissions have become the main source of air pollution, seriously endangering people's physical health and living environmentAdd oxygen-containing compounds to gasoline(Alcohols and ethers)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. Therefore, accurate detection of oxygen-containing compounds is of great significance for various aspects such as gasoline quality.

GC-9860Gas chromatograph for analysis of oxygen-containing compounds and benzene derivatives in gasolineThe analysis system strictly follows the relevant standards in ChinaGB/T17930-2011The Vehiclegasoline》TheGB/T18351-2004Ethanol for Automotive Usegasoline》TheSH/T0663-1998《gasolineMedium alcoholEther classContent determination、SH/T0693-2000Method for determination of aromatic hydrocarbon content in gasoline (gas chromatography method)Absorb and establish a completegasolinedetectionanalysisGas chromatography scheme, selection**analysisThe conditions make this scheme have the advantages of simple operation, good linear correlation coefficient, high accuracy, high precision, and low cost, which are beneficial for improvementgasolineThe methods and product quality control in industrial processes have important practical significance. GC-9860Gas chromatograph for analysis of oxygen-containing compounds and benzene derivatives in gasolineSpecially designed for the determination of alcohol and ether compounds containing oxidants in gasoline; Determination of benzene and toluene; At the same time, addition can also be used for the analysis of aromatic hydrocarbons. It is an ideal specialized gas chromatograph for the petrochemical industry, refineries, and quality supervision and inspection related application fields.

1、 Instrument configuration

1．GC-9860Type gas chromatograph (with automatic ten way valve blowback and reset system)

2Detector: DualFID/Capillary Split Flow Non Split Injection System（SPL）

3Chromatographic column:A.Pre cut columnTCEP，0.56m×0.38mmStainless steel column;B.analytical columnDB-1（WCOT），30m×0.32mm×3μmCross linked methyl silicone quartz capillary column

4．N2000Chromatography workstation

5High purity air generator, hydrogen generator, nitrogen generator (or nitrogen cylinder)

6.Standard sample:

　　A.mellow wine/Ether qualitative standard sample

　　B.mixed alcohol/Ether calibration standard sample

　　C.mellow wine/Ether internal standard

　　DQualitative standard sample of aromatic hydrocarbons

　　EMixed aromatic hydrocarbon calibration standard sample

　　FAromatic internal standard

2、 Analysis process:

1Analysis of oxygen-containing compounds: Internal standard ethylene glycol dimethyl ether（DME）To add to the sample, first enterTCEPPre cut the column, empty the light hydrocarbons, and then switch between methylcyclopentane and methyl tert butyl ether to allow oxygen-containing compounds to enterWCOTColumn, wait for the outflow of tert amyl methyl ether, and then blow back heavy hydrocarbon components.

2Analysis of Benzene and Toluene: Internal Standard2-Ketone is added to the sample and first entersTCEPPre cut column, emptyC9Compared toC9Light non aromatic hydrocarbons, then switch between benzene and toluene before benzene flows out2-Ketone enteringWCOTColumn, wait2-After the ketone flows out, blow back the remaining components（C8andC8The above aromatic hydrocarbons andC10andC10The above non aromatic hydrocarbons

3Aromatic hydrocarbon analysis: using internal standards2-Ketone is added to the sample and first entersTCEPPre cut column, empty benzene, toluene and less thanC12Switch between non aromatic hydrocarbons before ethylbenzene flows out, allowing aromatic hydrocarbons to enterWCOTColumn, wait for ortho xylene to flow out, then blow back the remaining components（C9andC9The above aromatic hydrocarbons are detected by the detector.

Compliant with standards:

（1）GB 17930-2011Automotive Gasoline

（2）GB 18351-2004Ethanol gasoline for vehicles

（2）SH/T 0663-1998Determination of Certain Alcohols and Ether Oxygenates in Gasoline

（3）SH/T 0693-2000Determination of Aromatic Hydrocarbons in Gasoline

Our company's other analysis plans:

Special gas chromatograph for gasoline component analysis Gas chromatography detection of oxygen-containing compounds in gasoline Gas chromatography analysis of benzene and toluene in gasoline Methanol gasoline(M85)Determination of Methanol Content in Gasoline by Gas Chromatography, Analysis of Oxygen Compounds in Gasoline by Gas Chromatography, Analysis of Aromatic Hydrocarbons in Gasoline by Gas Chromatography, Determination of Benzene Content in Gasoline by Gas Chromatography, Chromatographic Analysis Scheme for Alcohol Ether Analysis in Gasoline by Gas Chromatography Oxygenated compounds in gasoline(alcohol ether)Analysis specific gas chromatograph Special chromatograph for analysis of oxygen-containing compounds and aromatic hydrocarbons in synthetic gasoline Special chromatograph for analysis of oxygen-containing compounds and aromatic hydrocarbons in automotive gasoline

companyThe clothingaffairadvantage:
1The technical indicators of our company's products strictly comply with the requirements of technical documents, and the product quality meets the requirements of relevant national standards. The product is installed and debugged by technical personnel or provided with free telephone guidance.
2After the product is accepted as qualified,a yearDuring the warranty period, except for human damage factors, our company guarantees free maintenance；Lifetime maintenance of equipment, charging only cost for vulnerable parts, providing free technical support and discounted accessory supply.
3After sales serviceEngineers have receivedcolour spectrumInstrument repair and maintenancestudy,Can perform on various componentssystemMaintenance andMaintenance,To ensure the normal operation of your instrument, for yousolveIn operation analysisProblems.