Publication Date:
2013-10-10
Description:
The synthesis of polyoxymethylene dimethyl ethers (PODE n ), being green diesel fuel additives, from dimethoxymethane (DMM) and paraformaldehyde over three different cation resins, namely NKC-9, D001-CC, and D72, in a stirred-autoclave reactor was investigated. The pore size distribution and surface area were measured with nitrogen adsorption-desorption. NKC-9 had a larger exchange capacity, better developed porosity structure, and higher reaction activity than D001-CC and D72. The effects of reaction temperature, DMM/CH 2 O molar ratio, reaction time, and catalyst loading were studied with NKC-9. A possible mechanism was explored to describe the bond reorganizations during the reactions. Polyoxymethylene dimethyl ethers (PODE n ) are promising green diesel fuel additives. A method for synthesizing PODE n from dimethoxy-methane and paraformaldehyde was developed. The feedstocks were coal-based C1 chemicals including methanol and formaldehyde. This process could fully utilize the surplus C1 chemicals and alleviate the diesel supply crisis.
Print ISSN:
0930-7516
Electronic ISSN:
1521-4125
Topics:
Chemistry and Pharmacology
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Process Engineering, Biotechnology, Nutrition Technology
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