Shandong Jiurunfa Chemical Technology Co., Ltd.

Shandong Jiurunfa Chemical Technology Co., Ltd.

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Diesel Gas LPG DME Dimethyl Propellant For Liquefied Petroleum Custom

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Diesel Gas LPG DME Dimethyl Propellant For Liquefied Petroleum Custom

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Brand Name :JIURUNFA
Model Number :DEM
Certification :ISO9001
Place of Origin :Shandong China
MOQ :1T
Price :Negotiable
Payment Terms :L/C,D/A,D/P,T/T
Supply Ability :100000T
Delivery Time :7-15 Days
Packaging Details :50kg/100kg cylinders or ISO tanks
Other Names :DME, Methoxymethane, Methyl
Uses :Fuel, refrigerant, aerosol propellant, solvent, chemical intermediate
Density :2.02 g/cm3
Molecular Weight :46.07 g/mol
Chemical Formula :C2H6O
Melting Point :-141.5 °C
Vapor Pressure :5.3 bar at 20 °C
Boiling Point :-24.8 °C
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1. Product Introduction

Methoxymethane (DME) is an organic compound with a chemical formula of C2H6O. At room temperature and pressure, DME is a colorless gas with a slight ethereal aroma, but it can become a liquid under pressure. The gas has a higher density than air and can diffuse to a considerable distance at a lower level. Methoxymethane DME is very stable in the air, inert, non-corrosive, non-carcinogenic, and slightly toxic.


2. Specification Parameters (Technical Data Table)

Property

Specification

Product Name

DME

Key Words

Methoxymethane

Chemical Formula

C2H6O,CH3OCH3

Appearance

Colorless gas or compressed liquid at room temperature, with a chloroform-like odor

Density

Liquid phase: 661 kg/m³; Gas phase: 1.617 kg/m³ (at 20°C, air = 1)

Purity

≥99.99%

Melting Point

-141.5°C

Boiling Point

-24.9°C

Flash Point (Closed Cup)

-41°C

Surface Tension

16 dyne/cm (-10°C)

Gas Viscosity

82.5 μP (0°C)

Heat of Vaporization

111.64 cal/g (-24.8°C)

Heat of Combustion

7545 cal/g

Specific Heat

0.5351 cal/g·°C

Critical Pressure

5.37 MPa

Critical Temperature

126.9°C

Heat Value of Liquid DME

6903 * 4.1868 J/kg

Heat Value of Gaseous DME

14200 * 4.1868 J/kg

Packaging

50kg/100kg cylinders or ISO tanks


3. Characteristics

· Environmentally Friendly: Combustion produces only carbon dioxide and water, with no sulfur oxides or particulate emissions.

· High Purity: Suitable for use in sensitive applications like aerosol propellants or chemical intermediates.

· Energy Efficient: High calorific value, making it a suitable alternative to traditional fuels.

· Easily Transportable: Can be stored and transported as a liquid under moderate pressure.


4. Uses of Methoxymethane DME

  1. Chemical Raw Material: DME is primarily used as a methylating agent for the production of dimethyl sulfate. Additionally, it can synthesize N,N-dimethylaniline, methyl acetate, acetic anhydride, ethylene Methoxymethane DME, and ethylene among other chemical raw materials.

  2. Industrial Uses: DME serves as an alkylating agent, refrigerant, foaming agent, solvent, extractant, and leaching agent. Furthermore, it can be used as a substitute for composite ethanol for civilian use, and Freon aerosols.

  3. Aerosol Propellant: In industries such as hair care, skin care, pharmaceuticals, and coatings, DME can be used as a propellant for various aerosols.

  4. Fuel Additive: DME is promoted as a fuel additive abroad and has many unique applications in the pharmaceutical, dye, and pesticide industries. Due to the shortage of petroleum resources, the abundance of coal resources, and increasing environmental awareness, DME produced from coal conversion into clean fuels is increasingly valued. As an alternative fuel to LPG and petroleum products, DME does not produce environmentally damaging gases when burned and can be produced cheaply and in large quantities.


5. Applications

Energy Sector:

    • 1. Alternative Fuel: DME is an ideal clean fuel that can replace liquefied petroleum gas (LPG) and diesel. Due to its high combustion efficiency and low pollution emissions, it is regarded as a potential clean energy source for the future. The development and application of DME engines have opened up broad prospects for its use in transportation.
    • 2. Fuel Cell Hydrogen Source: DME can also be used as a hydrogen source for fuel cells, generating hydrogen through reforming reactions for use in Proton Exchange Membrane Fuel Cells (PEMFCs) and other mobile power sources.

6. Technology

The Methoxymethane DME project adopts advanced methanol gas-phase catalytic dehydration technology to produce fuel-grade DME with a concentration of more than 99.0%. The fuel-grade DME is further separated through a lightness removal tower (using high-efficiency corrugated rolled perforated plate filler) to obtain refined ethre with a concentration of 99.9% and high-purity with a concentration of 99.99%.


7. Theory

The chemical stability and low molecular weight of DME make it highly reactive for applications in energy and chemical processes. Its combustion reaction is represented as follows:
CH₃OCH₃ + 3O₂ → 2CO₂ + 3H₂O + Energytext{CH₃OCH₃ + 3O₂ → 2CO₂ + 3H₂O + Energy}CH₃OCH₃ + 3O₂ → 2CO₂ + 3H₂O + Energy


8. Service

· Customized Solutions: Tailored specifications for different industries.

· Logistics Support: Safe and efficient transport of DME worldwide.

· Technical Assistance: On-site and remote troubleshooting for your specific applications.

· 24/7 Customer Support: Dedicated team to address your queries anytime.


9. Production Process

The production of DME involves:

1. Methanol dehydration under controlled conditions using advanced solid acid catalysts.

2. Purification of the final product to ensure high purity levels (>99.99%).

3. Storage in pressurized tanks for distribution.


10. Operation Instructions

1. Handling: Always use DME in well-ventilated areas. Avoid inhalation or contact with the skin.

2. Storage: Store in sealed, pressurized containers away from direct sunlight or heat sources.

3. Transport: Ensure compliance with safety regulations when transporting as a liquefied gas.


11. Precautions

· Avoid exposure to high temperatures to prevent unintentional vaporization.

· Ensure leak-proof containers and proper safety protocols during handling.

· Use flame arrestors in systems handling DME to prevent flashback.

· Wear appropriate protective equipment (gloves, masks) during use.

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