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INDUSTRIAL ORGANIC SOLVENTS
Published in Nicholas P. Cheremisinoff, Industrial Solvents Handbook, Revised And Expanded, 2003
As noted symmetrical ethers with the alkyl hydrocarbon groups linked through the ether oxygen atom can be named dialkyl ethers or, more commonly, just the alkyl ether. Unsymmetrical ether structures with two different alkyl groups are named to reflect both the different alkyl groups. The name of the alkylene oxide corresponds to the hydrocarbon chain with the cyclic ether linkage being signified by the designation of oxide. The larger cyclic structures are usually classified as a heterocyclic structure such as furan, 1,4-dioxane, or 1,3-dioxolane. A series of aliphatic diether structures bear the common name "glyme" to which is attached the prefix "mono-,""di-,""tri-," or "tetra-" that denotes the number of (-CH;CH3O) groups in the molecule. The first member in the glyme series is the dimethyl ether of ethylene glyco! (CHjOCHjCIIjOCHj) or monoglyme. Addition of a (CHJCH3O) group to the monoglyme yields diglyme or the dimethyl ether of diethylene glycol (CH5OCH3CHJOCH2CHJOCH3). Addition of one or two (-CHJCHJO) groups to diglyme yields the tri- and tetraglyme solvents. The simplest ethyl ether analog is ethylene glycol diethyl ether or ethyl glyme. The corresponding diethylene glycol diether solvent is ethyl diglyme. The Grant Chemical Division of the Ferro Corporation produces diethylene glycol dibutyl ether or butyl diglyme solvent.
Effect of Diglyme on the performance, emission and combustion characteristics of diesel engine fuelled with methyl ester of rubber seed oil
Published in International Journal of Ambient Energy, 2022
The scientific name of Diglyme is bis (2-methoxy-ethyl) ether. It has a high cetane number, better solubility with diesel and high oxygen content. Previous studies have reported that the addition of Diglyme with diesel fuel promotes a reduction in particulate emissions (Ren et al. 2007). Cetane enhancers like diethyl ether (DEE), dimethyl ether (DME) and Diglyme (diethylene glycol dimethyl ether) were blended with fuels and tested in diesel engines (Ying et al. 2008; Di, Cheung, and Huang 2010). The addition of Diglyme has promoted combustion improvement along with soot reduction (Song et al. 2016). The addition of Diglyme improves the low-temperature flow properties; it increases the oxygen content, which results in the reduction of exhaust emissions (Huang et al. 2003). The biodiesel–Diglyme blends have lower HC, CO and smoke emissions. When compared to biodiesel, biodiesel–Diglyme blends have slightly higher Brake Thermal Efficiency (Sivanathan and Chandran 2014).