Method for continuously synthesizing furfural by catalyzing xylose with solid acid

The invention discloses a method for continuously synthesizing furfural by using solid acid to catalyze xylose. The method comprises the following steps: pretreating activated carbon, preparing an activated carbon-based solid acid catalyst, and dehydrating and cyclizing xylose to continuously prepare furfural. The method has the advantages that continuous production is realized in a continuous dehydration and cyclization production mode, the generated furfural can be separated from a reaction system in time, and the retention time of the generated furfural in an acid environment is shortened, so that side reactions and impurities are reduced; according to the synthesis mode, the xylose conversion rate is increased, the furfural selectivity and yield are increased, the xylose conversion rate is 90%, the furfural selectivity is 85%, and the yield of the dried furfural is 70%, so that the production cost is reduced. 本发明公开了一种利用固体酸催化木糖连续合成糠醛的方法，包括活性炭的预处理，活性炭基固体酸催化剂的制备，木糖脱水环化连续制备糠醛。本发明的优点：通过连续脱水环化的生产方式不间断生产，可以及时将生成