DME Methoxymethane Substitutes For Civil Composite Ethanol And Freon Aerosol Industrial Grade DME

Product Introduction

Industrial Grade DME, also known as methylethre, has a chemical name of 1,1-dimethoxymethane, a CAS number of 115-10-6, and an EINECS number of 204-065-8. Its molecular formula is CH3OCH3, and its structural formula is CH3-O-CH3. It is a colorless gas or a liquid in a compressed state, with a slight DME aroma. At room temperature and pressure, its density is 0.666, its melting point is as low as -141.5℃, its boiling point is -24.9℃, and its vapor pressure is about 0.5MPa at room temperature. It is similar to liquefied petroleum gas and is easily soluble in organic solvents such as water, alcohol .

As an DME compound, although Industrial Grade DME is different from DME and has neurotoxicity. It is widely used in aerosol product propellants, refrigerants, solvents, and other fields, especially playing an important role in Freon substitutes, which can effectively reduce the impact on the environment. In the chemical industry, high-purity Industrial Grade DME can be used as a new raw material for formaldehyde production, reducing production costs, and plays a unique role in the fuel, pesticide and other industries. For example, as a civilian fuel, its performance is better than that of liquefied petroleum gas, and it burns safely and environmentally friendly.

Due to the scarcity of petroleum resources and the improvement of environmental awareness, Industrial Grade DME is extracted from coal resources as a clean fuel and has become a low-carbon chemical product that the world is competing to develop. It is expected to become one of the energy sources in the 21st century, replacing traditional fuels such as LPG and oil. It does not produce harmful gases when burned and is environmentally friendly. In general, dIndustrial Grade DME is widely used in industry, agriculture, medical care and daily life due to its unique physical and chemical properties, and has broad development prospects.

Specification Parameters

Applications

For example, high-purity Industrial Grade DME can replace Freon as an aerosol propellant and refrigerant, reducing pollution to the atmospheric environment and damage to the ozone layer. Due to its good water solubility and oil solubility, its application range is much better than petrochemicals such as propane and butane. Replacing methanol as a new raw material for formaldehyde production can significantly reduce the production cost of formaldehyde, and its superiority is more evident in large-scale formaldehyde devices.

As a civilian fuel gas, its storage and transportation, combustion safety, premixed gas calorific value and theoretical combustion temperature are all better than petroleum liquefied gas, and it can be used as peak-shaving gas and liquefied gas blending gas for urban pipeline coal gas. It is also an ideal fuel for diesel engines. Compared with methanol-fueled vehicles, there is no problem of cold start of vehicles. It is also one of the main raw materials for the production of low-carbon olefins in the future.

Industrial Grade DME can also be used as a high-quality alternative energy source for automotive gasoline. Liquid DME has been scientifically formulated to meet the requirements of automobiles in terms of vapor pressure, octane number and other indicators. China's total gasoline consumption in 2010 was about 120 million tons, requiring a large amount of imported crude oil. If DME replaces gasoline at 20%, it can save 24 million tons of gasoline in 2010. According to data, China's self-developed -based gasoline is converted into gasoline fuel through DME, which will have great application and strategic significance as a vehicle fuel market in the future.

Production method of DME

Methanol dehydration method

Methanol dehydration method is one of the main methods for producing dimethyl ethre. This method uses methanol to undergo a dehydration reaction under the action of a catalyst (such as γ-alumina, ion exchange resin, etc.) to produce Industrial Grade DME. The reaction equation is: 2CH3OH → CH3OCH3 + H2O. This method has a simple process and low cost, and is currently the mainstream technology for industrial production of DME.

Synthesis gas production method

The synthesis gas production method uses synthesis gas (a mixture of CO and H2) as a raw material to prepare Industrial Grade DME through a one-step or two-step method. The one-step method refers to the direct generation from synthesis gas under the action of a catalyst, and the reaction equation is: 2CO + 4H2 → CH3OCH3 + H2O. The two-stage method refers to first converting synthesis gas into methanol, and then dehydrating methanol to produce dme. This method has the advantages of a wide range of raw material sources and high production efficiency.

Market prospects

With the growth of global energy demand and the improvement of environmental protection awareness as a clean energy and important chemical raw material, has shown a rapid growth trend in market demand. Especially in China, the DME industry has received strong support from the government and has huge market potential in the future. With the continuous improvement of production technology and the continuous expansion of application fields, the economic and social benefits of DME will be further improved.

Conclusion

Due to its unique physical and chemical properties, dme has a wide range of applications in fuel, refrigerant, foaming agent and chemical raw materials. Methanol dehydration method and synthesis gas preparation method are the main production methods, and dimethyl dme has broad market prospects. In the future, with the continuous advancement of technology and the continuous expansion of application scope, Industrial Grade DME is expected to play a more important role in modern industry and promote the sustainable development of economy and environment.

Industrial Grade DME

composite ethanol 111109 77 4

freon aerosol Methoxymethane

DME Methoxymethane Substitutes For Civil Composite Ethanol And Freon Aerosol Industrial Grade DME Images