Process for the conversion of a carbohydrate-containing feedstock

摘要

A carbohydrate-containing feedstock is converted in a process by contacting the feedstock in a first step with an alcohol in the presence of a first acid catalyst at a temperature below 100° C. to yield an intermediate product, and contacting at least part of the intermediate product in a second step with an alcohol in the presence of a second acid catalyst at a temperature of at least 100° C. Products of such conversion may include hydroxymethylfurfural, hydroxymethylfurfural ethers, levulinic acid, esters thereof and furfural.

主权项

1. A process for dehydrating a carbohydrate-containing feedstock, wherein the process comprises:
contacting the feedstock in a first step with an alcohol, selected from the group consisting of methanol, ethanol and a mixture thereof, in a presence of a first acid catalyst at a temperature below 100° C. to yield an intermediate product; and contacting at least part of the intermediate product in a second step with a second alcohol, selected from the group consisting of methanol, ethanol and a mixture thereof, in a presence of a second acid catalyst at a temperature ranging from 105 to 300° C.