| abstract |
The present invention provides a preparation method of an alcohol-based fuel additive. The above-mentioned additive includes a mixture of 5-alkoxymethyl furfural ether and its ether ester, including: providing glucose and low-carbon alcohol to catalyze under incomplete dehydration state 5-alkoxy methyl furfural ether is prepared by reaction, and the above-mentioned incomplete dehydration state means that the reaction system includes 1-10wt% of purified water, and the above-mentioned catalyst for catalysis includes sulfonic acid group-supported carbon microsphere solid; the above-mentioned catalytic reaction is provided The re-acylation reaction of the product obtains the mixture of the above ether and its ether ester; and, the above-mentioned mixture of the ether and its ether ester is compounded and mixed with other active ingredients and a liquid carrier. The preparation method of the present invention can reduce the generation amount of by-products in the reaction system, improve the reaction selectivity, improve the yield and conversion rate of intermediate products, further improve the yield rate of target products, and the utilization rate of raw materials in the system, reduce the production costs and losses. |