What methanol is made of and what methanol is produced from

Production method of methanol:

Almost all industrial synthesis of methanol adopts the method of carbon monoxide pressurized catalytic hydrogenation. The process includes gas production, synthesis and purification, methanol synthesis and crude methanol distillation. (The purification process of crude methanol includes rectification and chemical treatment.)

Chemical treatment mainly uses alkali to destroy impurities that are difficult to separate in the distillation process and adjust pH; Distillation is mainly to remove volatile components such as dimethyl ether, as well as refractory components such as ethanol, high-carbon alcohols and water, and the purity after crude distillation can generally reach more than 98%)

The water content of industrial methanol is reduced to the following by rectification. It is then treated with sodium hypoperiodate to remove the acetone in it. Pure methanol is obtained by rectification.

Generally, industrial methanol is used as raw material, and the water is removed by frequent pressure distillation, and the top of the tower is controlled 64 65, and the insoluble matter can be removed by filtration.

It can also be separated from pyrowood acid obtained from the dry distillation of wood. The preparation of methanol is mainly carried out by the distillation process. Using industrial methanol as raw material, high-purity methanol products are obtained by distillation, ultra-clean filtration, and ultra-clean packaging.

Read in a minute. Methanol production process.

The production of methanol is mainly synthetic, and a small amount is still dry distilled from wood as a by-product**. The chemical reaction formula of synthesis is: 2H2 + Co CH3OH Synthetic methanol can be solid (such as coal, coke) liquid (such as **, heavy oil, light oil) or gas (such as natural gas and other flammable gases) as raw materials, through gas purification (desulfurization) transformation, remove carbon dioxide, and prepare a certain amount of syngas (carbon monoxide and hydrogen).

In the presence of different catalysts, different process conditions are selected. Methanol is produced per unit (divided into high pressure method, low pressure and medium pressure method), or co-produced methanol with synthetic ammonia (combined alcohol method). The synthesized crude methanol is pre-distilled to remove the methyl ether, and the finished methanol is obtained by rectification.

The high-pressure method is the first method to realize industrial synthesis of BASF, but due to its high energy consumption, complex processing, demanding material requirements, and many by-products in the product, it will be replaced by the ICI low-pressure and medium-pressure method and the LURGI low-pressure and medium-pressure method in the future.

Natural gas or coal or tar gas.

High-temperature catalysis of hydrogen and carbon monoxide.

Methanol is produced from carbon monoxide, carbon dioxide and hydrogen.

The raw materials for the synthesis of methanol are industrial carbon monoxide, carbon dioxide and hydrogen, which is commonly known as synthesis.

Gas. The traditional raw materials for the production of syngas are: natural gas, coal, and residual oil. Carry out a certain high acre through and water vapor.

ratio, the production of syngas, further synthesis of methanol.

At present, some use various coke oven gas or other industrial tail gases, the main component is alkanes below carbon three and steam reaction to produce syngas.

Methanol uses include:

1. It is used in fine chemicals, plastics and other fields, and can be used to manufacture formaldehyde, acetic acid, chloromethane, methylammonia, dimethyl sulfate and other incombustible organic products, and is also one of the important raw materials for pesticides and medicines.

2. Methanol can be used as a new type of clean fuel after deep processing, and it can also be mixed with gasoline.

3. Methanol can be used to produce formaldehyde, which can be used to produce adhesives, mainly used in the wood processing industry, followed by molding compounds, coatings, textiles and paper treatment agents.

4. Another main use of methanol is the production of acetic acid. Acetic acid consumes about 7% of global methanol demand and produces vinyl acetate, fibre acetate and acetate, among others, which are closely related to demand for coatings, adhesives and textiles. 5. Methanol can be used to make methyl formate, methyl formate can be used to produce formic acid, formamide and other fine chemical products, and can also be used as insecticides, fungicides, fumigants, tobacco treatment agents and gasoline additives.

6. Methanol can be used to produce methylamine, methylamine is an important aliphatic amine, with liquid nitrogen and methanol as raw materials, which can be separated into monomethylamine, dimethylamine and trimethylamine through processing, which is one of the basic chemical raw materials. <>

Methanol, also known as hydroxymethane, is an organic compound and is the simplest saturated monoalcohol.

Its chemical formula is CH3OH CH4O, where CH3OH is a simple structural formula, which can highlight the hydroxyl group of methanol, the CAS number is 67-56-1, the molecular weight is, and the boiling point is. Because it was first discovered in dry distilled wood, it is also called "wood alcohol" or "wood spirit".

Crude methanol is purified, and the purification process includes rectification and chemical treatment. Chemical treatment mainly uses alkali to destroy impurities that are difficult to separate in the distillation process and adjust the pH value; Distillation is mainly to remove volatile components such as dimethyl ether, as well as refractory ethanol, high-carbon alcohols and water. The purity after crude distillation can generally reach more than 98%.

Alcohol, also known as wood alcohol or wood alcohol, has the smell of alcohol, has no color, and is transparent, easy to ignite, and relatively volatile.

Methanol, also known as wood alcohol or wood alcohol, has the smell of alcohol, has no color, and is transparent.

1. Chloromethane hydrolysis method.

Chloromethane can be quantitatively converted to methanol and dimethyl ether under the action of soda lime, and at 350 °C, when this process is carried out in the flow system, the methanol yield is 67%, and the dimethyl ether is 33%. The conversion rate of chloromethane is 98%. First pin round.

2. Methane partial oxidation method.

3. Syngas produces methanol.

Syngas refers to a mixture of gases whose main components are hydrogen and carbon monoxide. This method is characterized by large processing capacity, huge equipment, large floor area, and is proposed by combining the advantages and disadvantages of high-pressure and low-pressure methods.