Feasibility of enhancing production of 5-hydroxymethylfurfural using deep eutectic solvents as reaction media in a high-pressure reactor

•The composition of wood dust and its byproducts from SE process were identified.•The constituents of DESs affect the yield and selectivity of HMF was determined.•The reaction conditions affect the yield and selectivity of HMF was explored.•Optimal conditions for using pretreated wood dust to produce HMF were identified.