Alkane combustion, what is the combustion law of hydrocarbons?

With the introduction of concentrated sulfuric acid, the solution increases the mass of the water produced by burning liters of alkanes.

Then the amount of water produced by combustion is .

Then the amount of the substance in the liter of alkanes is.

So the number of h atoms contained in alkanes is.

So the chemical formula of this alkane is CXH10

According to the alkane general formula CNH2N+2

So the hydrocarbon chemical formula is C4H10

The structure is simplified as ch3-ch2-ch2-ch3

ch3-ch-ch3ch3

Alkane (wántīng), that is, saturated hydrocarbons (saturated hydrocarbons), is a saturated hydrocarbon under hydrocarbons, and its overall structure is mostly composed of carbon, hydrogen, carbon-carbon single bonds and hydrocarbon single bonds, and it is also the simplest organic compound, and it can be subdivided into paraffins and naphthenes. Paranectoes are alkanes that are bonded by single bonds between carbon atoms to form chains (straight or branched, also known as side chains). Naphthenes refer to alkanes that contain aliphatic ring structures.

At room temperature, alkanes containing 1 4 carbon atoms are gases; At room temperature, alkanes containing 5 8 carbon atoms are liquid; Alkanes containing 8 16 carbon atoms can be solid or liquid; N-alkanes containing more than 17 carbon atoms are solid, but until the n-alkanes containing 60 carbon atoms (melting point 99), their melting point does not exceed 100. Alkanes with low boiling point are colorless liquids with special odors; High-boiling alkanes are viscous oily liquids that are odorless. Alkanes are non-polar molecules with zero dipole moments, but the distribution of charges in the molecules is not very uniform, and instantaneous dipole moments can be generated in motion, and there is an interaction force (dispersion force) between instantaneous dipole moments.

In addition, there are van der Waals forces between molecules, and the intermolecular forces are one or two orders of magnitude smaller than the chemical bonds, and the energy required to overcome these forces is also low, so the melting and boiling points of general organic compounds rarely exceed 300. The boiling point of n-alkanes increases with the relative molecular mass because the energy required for molecular motion increases, as does the contact surface between molecules (i.e., the interaction force). For each increase of CH2 in the lower alkanes, the relative molecular weight changes greatly, the boiling point is also quite different, and the difference between the higher alkanes is small, so the lower alkanes are easier to separate, and the higher alkanes are much more difficult to separate.

1. Fujian non-methane total hydrocarbon treatment - photocatalytic method.

The high-energy high-ozone ultraviolet (UV) beam specially made by the photolysis catalytic oxidation equipment of Shinetech environmental protection deodorization equipment illuminates the odorous gas, changes the molecular chain layout of the odorous gas, and makes the organic or organic high-molecular odorous compound molecular chain degrade and turn into low-molecular compounds or complete mineralization to generate CO2 and H2O under the illumination of high-energy ultraviolet beams.

2. Fujian non-methane total hydrocarbon treatment - activated carbon adsorption method.

Activated carbon should be regarded as the most simple and commonly used waste gas disposal method.

After the organic waste gas is collected by the process gas collection hood, the overflow section of the activated carbon layer in the bed is firmly adsorbed through the process, and within a certain residence time, because the physical adsorption (also known as van der Waals adsorption) occurs due to the gravitational influence between the activated carbon and the organic waste gas molecules, so that the organic components in the waste gas are adsorbed outside the leisure of the activated carbon, so that the waste gas is polluted, and the clean gas after pollution is pumped to the chimney through the main fan of the process to meet the standard discharge.

3. Fujian non-methane total hydrocarbon treatment - high-temperature plasma method.

The degradation of pollutants by high-temperature plasma is the application of these high-energy electrons, free radicals and other active particles and pollutants in the exhaust gas, so that the pollutants can differentiate in a very short period of time, and various subsequent reactions occur to achieve the goal of differentiating pollutants.

Summary of the law of burning and laughing of hydrocarbons:

1. Combustion of hydrocarbons.

Whether alkanes, alkenes, alkynes, benzene and benzene homologues, their ascending branch composition can be used to indicate that it is completely all-burning in oxygen or air.

2. The change in the amount of substances during hydrocarbon combustion.

Before and after the complete combustion of hydrocarbons, the quantitative change value of the total substance of each substance is consistent with the stoichiometric change value in the above combustion equation. That is, the value of the quantitative change of the substance before and after combustion is only related to the number of hydrogen atoms in the hydrocarbon molecule, but not to the number of carbon atoms.

3. The volume of gaseous hydrocarbon combustion.

Methane combustion produces carbon dioxide (CO2) and water (H2O).

Methane is the simplest organic matter and the hydrocarbon with the least carbon content (the largest hydrogen content). Methane is widely distributed in nature and is the main component of natural gas, biogas, pit gas, etc., commonly known as gas. It can be used as a fuel and raw material for the production of hydrogen, carbon black, carbon monoxide, ethoxa, hydrocyanic acid and formaldehyde.

Methane is a very important fuel and is the main component of natural gas, accounting for about 87%. At room temperature under standard pressure, methane is colorless and odorless; The special taste of domestic natural gas is an artificial odor that is added for safety, usually using methyl mercaptan or ethyl mercaptan.

At one atmospheric pressure, the boiling point of methane is -161°C. As long as the gas content in the air exceeds 5% or 15%, it is very flammable. Liquefied methane does not burn except in a high-pressure environment (usually 4-5 atmospheres).

The Chinese national standard stipulates that methane cylinders are brown with white characters.

Methane pyrolysis can obtain carbon black, which is used as additives for pigments, inks, paints and rubber, etc., and chloroform and CC14 are important solvents. Methane is widely distributed in nature and is one of the main components of natural gas, biogas, and pit gas. It can be used as fuel and raw material for the production of hydrogen, carbon monoxide, carbon black, ethoxa, hydrocyanic acid and formaldehyde.

Methane is used as a standard fuel for calorific value testing in water heaters and gas furnaces. Production of standard gas and correction gas for combustible gas alarms. It can also be used as a carbon source for vapor chemical deposition of solar cells and amorphous silicon films. and methane as a raw material for the production of pharmaceutical and chemical synthesis.

In addition to being used as fuel, it is widely used in the synthesis of ammonia, urea and carbon black, and can also be used to produce methanol, hydrogen, ethylene, formaldehyde, carbon disulfide, nitromethane, hydrocyanic acid and 1,4-butanediol. Methane chlorination is available.

Mono, di, chloroform and carbon tetrachloride.

Answer]: B Here it is said that the detonation of Jing Zaoyuan is a generalized concept, and when the gasoline compression ignition mixture is thicker, it will instantly open the shirt and release too much heat, resulting in the pressure rise rate is too high and the cylinder pressure will also appear jagged.