Process for the conversion of a xylan-containing feed

摘要

A process for the conversion of a xylan-containing feed comprising: a first reaction stage wherein a xylan-containing feed is supplied to a first reactor, which first reactor is essentially operated at plug flow,and wherein the xylan-containing feed is contacted in the first reactor with an aqueous solution of an acid at a temperature in the range from equal to or more than 140°C to equal to or less than 210°C to produce an intermediate product; a second reaction stage wherein the intermediate product is supplied to a second reactor, which second reactor comprises a continuously stirred tank reactor, and wherein the intermediate product is contacted in the second reactor with an aqueous solution of an acid at a temperature in the range from more than 130°C to equal to or less than 200°C to produce a final product.