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Synthetic Cryogenic Dimethyl Ether DME Propellant Customized

Product Details

Place of Origin: Shandong China

Brand Name: JIURUNFA

Certification: ISO9001

Model Number: DEM

Payment & Shipping Terms

Minimum Order Quantity: 1T

Price: Negotiable

Packaging Details: 50kg/100kg cylinders or ISO tanks

Delivery Time: 7-15 Days

Payment Terms: L/C,D/A,D/P,T/T

Supply Ability: 100000T

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Product Details

Product Description

Product Details

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                                                                                                                                                                                                                                                                                                                synthetic dimethyl ether dme, customized dimethyl ether dme, synthetic dme propellant
                              

Reactivity:	Reacts Violently With Strong Oxidizing Agents	Solubility In Water:	Slightly Soluble
Boiling Point:	-24.9 °C	Vapor Pressure:	5.5 Bar At 20 °C
Melting Point:	-138.5 °C	Autoignition Temperature:	200 °C
Uses:	Fuel, Aerosol Propellant, Refrigerant	Chemical Formula:	CH3-O-CH3

Reactivity:	Reacts Violently With Strong Oxidizing Agents
Solubility In Water:	Slightly Soluble
Boiling Point:	-24.9 °C
Vapor Pressure:	5.5 Bar At 20 °C
Melting Point:	-138.5 °C
Autoignition Temperature:	200 °C
Uses:	Fuel, Aerosol Propellant, Refrigerant
Chemical Formula:	CH3-O-CH3

Product Description

Synthetic Cryogenic Dimethyl Ether DME Propellant Customized

Product Description

Dimethyl Ether (DME) is produced through two primary methods: the one-step method and the two-step method. The one-step method synthesizes DME directly from raw gas, while the two-step method first produces methanol from synthesis gas before dehydrating it to create DME.

One-Step Method Production

This process converts natural gas or coal gasification into synthesis gas, which then enters a synthesis reactor. The reactor simultaneously completes methanol synthesis and methanol dehydration reactions. The resulting mixture is separated through distillation to obtain DME, with unreacted methanol recycled back into the reactor.

The one-step method typically uses a bifunctional catalyst system combining:

Methanol synthesis catalysts (e.g., Cu-Zn-Al(O)-based catalysts, BASF S3-85, ICI-512)
Methanol dehydration catalysts (e.g., alumina, porous SiO2-Al2O3, Y-type/ZSM-5 molecular sieves)

Two-Step Method Production

This method first synthesizes methanol from synthesis gas, then dehydrates it using solid catalysts (typically γ-Al2O3/SiO2 ZSM-5 molecular sieves) at 280-340°C and 0.5-0.8MPa pressure. The process achieves 70-85% methanol conversion per pass with >98% DME selectivity.

Key Comparison: The one-step method offers simpler processes, smaller equipment, and lower costs, while the two-step method produces higher purity DME (99.9%) with mature technology and simpler post-processing.

Specification Parameters

Parameter	Value
Chemical Formula	C₂H₆O
Molecular Weight	46.07 g/mol
State	Gas at normal temperature and pressure
Density	~1.908 kg/m³ (at 21.1°C, 1 atm)
Melting Point	-141.5°C
Boiling Point	-24.8°C
Flash Point	-41.1°C
Ignition Point	350°C
Explosion Limits	3.4% (lower) to 18% (upper) in air
Octane Number	>55

Characteristics

Environmentally Friendly: Combustion produces only CO₂ and water with no sulfur oxides or particulates
High Purity: Suitable for sensitive applications like aerosol propellants
Energy Efficient: High calorific value as alternative fuel
Easily Transportable: Storable as liquid under moderate pressure

Advantages

Clean combustion with no soot emissions
Versatile industrial, automotive and domestic applications
Cost-effective alternative to LPG and diesel
Stable storage with minimal degradation risk
Reliable production from abundant methanol/natural gas

Applications

Fuel:
- LPG replacement for cooking
- Diesel alternative for vehicles/power generation
Aerosol Propellant: Cosmetics, pharmaceuticals, household sprays
Chemical Feedstock: Dimethyl sulfate, acetic acid production
Refrigerant: Efficient cooling agent
Welding/Cutting: Oxy-DME fuel applications

Technology

Our DME production utilizes advanced methanol gas-phase catalytic dehydration technology, producing fuel-grade DME (>99.0% concentration). Further purification through lightness removal towers yields refined (99.9%) and high-purity (99.99%) DME.

Theory

DME's chemical stability and low molecular weight enable diverse energy/chemical applications. Combustion reaction:

CH₃OCH₃ + 3O₂ → 2CO₂ + 3H₂O + Energy

Service

Customized specifications for different industries
Global logistics support for safe transport
Technical assistance for application troubleshooting
24/7 customer support

Production Process

Methanol dehydration using solid acid catalysts
Purification to >99.99% purity
Pressurized storage for distribution

Operation Instructions

Handle in well-ventilated areas with proper PPE
Store in sealed, pressurized containers away from heat
Transport in compliance with safety regulations

Precautions

Avoid high temperature exposure
Use leak-proof containers and safety protocols
Install flame arrestors in DME systems
Wear protective gloves and masks

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Contacts: Mr. Sales

Tel: 86-531-88978007

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