PODE Plant
is a kind of oligoether compound which is produced by acetalization reaction. When both ends of poden are blocked by methoxy, it is called polymethoxydimethyl ether (dmm3-8, molecular formula CH3O (CH2O) nch3). Compared with DME and dmm1, dmm3-8 has higher viscosity and boiling point, so mixing with diesel does not need to change the existing engine Oil supply system.
When the polycondensation molecular unit is controlled at n = 3-6, dmm3-8 has a good miscibility with diesel oil, with an average cetane number of over 76 and a boiling point of 156-268 ℃, which is just in the range of diesel oil. It overcomes the shortage of DME and dmm1 as fuel components, fully meets the requirements of clean diesel oil blending and components, and is considered to be a promising environmental protection diesel oil component.
In addition to being an excellent oil additive, DMMNcan also be used as an excellent medium boiling point solvent with the following advantages: 1. Solubility. It has a strong dissolving power and can be completely miscible with hydrocarbons and alcohol, ether, acetone, etc. It is a good substitute for aromatic solvent (toluene, xylene, trimethylbenzene), DMF (dimethylformamide), methanol, glycol butyl ether and halogenated hydrocarbon.2. Amphiphilic solvent. At 16 ℃, 32.3% (WT) of dmmn was dissolved in water and 4.3% (WT) of water was dissolved in product. At the same time, it has good solubility in alkane, arene, ether, ketone aldehyde ester and halogenated hydrocarbon and can be used as compatibilizer. 3. Toxicity: the toxicity of organic solvents is the lowest, with slight toxicity, sulfur-free and aromatics free. Biodegradable. 4. Low cost.
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