Difference Between Kerosene And Gasoline Fuel: Comparison

Fuel has been obtained from oil for many years. The most common is kerosene and gasoline. They differ in scope, chemical properties, and tasks.

But what is the difference between kerosene and gasoline? If gasoline can be purchased at any gas station, then kerosene is sold in bulk at oil depots. It is less common than gasoline.

difference between kerosene and gasoline

what is Kerosene Fuel?

Kerosene is a substance that has long been used to fuel lamps and kerosene gas. It is used to create a fire show. Even with long-term storage, kerosene retains its chemical stability.

The fuel contains a mixture of carbohydrates with a boiling point of 150-200⁰С. The liquid is transparent, has an oily structure. At 20⁰С, its density is 0.75-0.85 g/m³.

 Kerosene Fuel

Kerosene burns completely, which is due to its ease of evaporation. Due to the high explosion class, high requirements are placed on fuel storage containers. The pour point of the liquid is -50⁰С, which is 20⁰ higher than gasoline.

In diesel power units, kerosene in its pure form is not recommended because of the risk of early wear. But they can be diluted with summer diesel fuel to lower the pour point. The main use of pure kerosene is refueling aircraft (jet fuel), and washing carburetors. Another function is a solvent.

The flammability and volatility of kerosene depend on the type of raw material and its composition.

There are several groups of fuels that differ in the concentration of carbohydrates.

  1. Aviation fluid is used to lubricate engines and fuel systems in aviation and acts as a coolant. Differs in high temperature of combustion and thermal oxidizability. Low-temperature resistance.
  2. Technical kerosene is produced in accordance with GOST. It is used for washing spare parts, car components, mechanisms, and other equipment. Plays the role of a solvent.
  3. Lighting fuel is used to fuel kerosene lamps. When burning, it does not leave soot and soot on surfaces.

Kerosene grade TC-1 is used in painting work. They are diluted with paint and varnish coatings, and mastics. It is recommended to work with it outdoors or in well-ventilated areas.

If you want to know about Adding Kerosene To Diesel Fuel read it out.

What is Gasoline Fuel?

Gasoline is a light and combustible mixture. It is distinguished by a wide range of boiling points 33-205⁰С. Its calorific value reaches 32.7 MJ/l. When using special additives, the fuel freezes at 72⁰С.

Gasoline has low detonation characteristics. It is a product of oil refining. There are several types of fuel:

  • natural;
  • polymerization;
  • product of the cracking process;
  • liquefied petroleum gas;
  • industrial.

Gasoline is the most common type of fuel for vehicles. It is used in piston engines with spark ignition.

There is aviation and motor gasoline. Despite the different scopes, both types have similar quality indicators. However, the physicochemical and operational properties of the fuel are different.

Currently, high requirements for gasoline. Compliance with them is the key to efficient engine operation.

  1. Good volatility for a homogeneous mixture.
  2. Homogeneous carbon composition at any degree of heating and cooling to ensure a knock-free combustion process in the engine.
  3. Uniform composition and chemical properties at any engine speed.
  4. No negative impact on the elements of the fuel system, components, and other elements.
  5. Ecological properties.

Gasoline consists of a mixture of carbohydrates, impurities of sulfur, nitrogen, and acids. It is the lightest fraction of all liquid petroleum products. It is on the fractional compositions of the fuel that the quality of the engine start, the duration of heating, the degree of combustion, and the wear rate of the engine elements depend. Light-fraction gasoline improves the starting properties of the engine, as it has a low boiling point.

The fuel used in automobile engines must have the following properties:

  • homogeneity;
  • density from 690 to 750 kg/m²;
  • low viscosity;
  • volatility for easy starting;
  • saturated vapor pressure up to 670 hPa in summer and 670-930 hPa in winter;
  • resistance to low temperatures;
  • combustion.

Similarities between kerosene and gasoline

Similarities between kerosene and gasoline

Kerosene and gasoline are the result of many chemical reactions. As a result of transformations, 2 types of fuel are formed, which are visually similar, but have different technical characteristics.

Both products are produced by refining oil in factories. They have a pronounced smell. They are similar in ease of ignition and rapid combustion process. They are similar in texture and color – transparent, sometimes with a yellowish tint.

Each of the products is formed from oil, which goes through a process of heating at certain temperatures. The components of the fuel are chosen, and when cooled, they form a combustible liquid with different properties.

difference between kerosene and gasoline

Gasoline is the fuel used in spark-start engines. Kerosene is a refined product that is widely used in industry, aviation, rocket engines, and sometimes in everyday life. Therefore, the first difference between gasoline and kerosene is the scope.

The second difference is the boiling point of petroleum products. It is the boiling point that determines when the separation of the fuel fraction from the oil by distillation occurs.

The boiling point of gasoline is much lower than that of kerosene. But it can vary, depending on the hydrocarbon composition of the fuel and the initial component – oil. Depending on the type of gasoline, its boiling point varies from 33 to 205⁰С. Oil is heated to a certain temperature regime (gradually, in order to first release high-octane fuel). Then gasoline in the gaseous state cools in a special chamber until a flammable liquid is formed. Gradually increasing the heating temperature of the oil, first gasoline is released, then kerosene. Diesel fuel is extracted from the residues, and fuel oil is extracted from the remaining oily liquid.

But the main difference between gasoline and kerosene is the number of atoms per molecule. So, gasoline is a light mixture of carbohydrates. It contains 4-12 carbon atoms per molecule. Kerosene has 10-16 atoms per molecule.

table of comparison of of gasoline and kerosene

Short chains of atomsLong hydrocarbon formations
Low oil heating temperature for fuel extractionA higher degree of oil heating to form fuel
High level of fire hazard, instantaneous ignitionIlluminates slowly and gradually
Gives off a small amount of energyThe high degree of calorific value
Not used at homeActively used for domestic purposes
Loses properties during long-term storagePossesses chemical stability
Used in engines with a forced start from a spark (vehicles)Used in aviation and missile systems

Thus, kerosene and gasoline are different petroleum products. Their main difference is the scope, heating point and flammability.

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