Composition of white gasoline

White spirit is similar to gasoline. Although its explosion rate is very low, its combined components contain some gases. It is mainly used in many industrial and gas-related places. It will produce a very strong odor during the storage process. If people inhale these odors for a long time, it will cause certain damage to liver function. Therefore, you need to take corresponding precautions and pay special attention to it in normal times.

Main properties

Naphtha (petroleum naphtha ligroin) is also called crude gasoline: it generally contains 55.4% alkanes, 30.3% monocycloalkanes, 2.4% bicycloalkanes, 11.7% alkylbenzenes, 0.1% benzene, and 0.1% indan and tetralin. The average molecular weight is 114, the density is 0.76g/cm3, and the explosion limit is 1.2%~6.0%.

Main components: Mainly C5~C7 components of alkanes.

Hazardous ingredients: CAS No.

Butane 106-97-8

Pentane 109-66-0

Hexane 110-54-3

Physical properties

Naphtha is a colorless, transparent or slightly yellow liquid at room temperature and pressure with a special smell and is insoluble in water. The density is 650-750kg/m3. The sulfur content shall not exceed 0.08%, the alkane content shall not exceed 60%, the aromatic content shall not exceed 12%, and the olefin content shall not exceed 1.0%.

Appearance and properties: Colorless or light yellow liquid.

Boiling point(℃): 20~160

Relative density (water = 1): 0.78~0.97

Flash point(℃): -2

Ignition temperature(℃): 350

Upper explosion limit%(V/V): 8.7

Lower explosion limit%(V/V): 1.1

Solubility: Insoluble in water, soluble in most organic solvents.

Main Applications

Main uses: It can separate a variety of organic raw materials, such as gasoline, benzene, kerosene, asphalt, etc.

Naphtha is a light oil product obtained by distilling crude oil or cutting the corresponding fractions from secondary processing of petroleum. Its boiling point range depends on needs, usually a wider distillation range, such as 30-220℃.

Naphtha is an important raw material for producing ethylene and propylene by cracking in tubular furnaces and for producing benzene, toluene and xylene by catalytic reforming. As a cracking raw material, the content of alkanes and cycloalkanes in naphtha is required to be no less than 70% (volume);

When used as a catalytic reforming feedstock to produce high-octane gasoline components, the feed is a wide fraction with a boiling point range of 80-180°C. When used to produce aromatics, the feed is a narrow fraction with a boiling point range of 60-165°C.

The boiling range of light straight-run naphtha commonly used abroad is 0-100°C, and the boiling range of heavy straight-run naphtha is 100-200°C;

Catalytic cracking naphtha comes in three types: light, medium and heavy, with temperatures of <105°C, 105-160°C and 160-200°C.

Actual connection: Since the market price of naphtha is much lower than that of unleaded gasoline for vehicles (the price difference per ton is 600-1200 yuan), the use of naphtha and petrochemical additives to blend unleaded gasoline for vehicles has become an important way for private petrochemical companies to increase profits from refined oil products.

my country's crude oil is heavy and the supply of naphtha is very tight. Ethylene units, reforming units and naphtha hydrogen production units are competing for raw materials.