Carbohydrate reactions – kraft pulping

Carbohydrate reactions – kraft pulping General aspects The selectivity of delignification is rather low for kraft pulping.1-4 This means that the wood polysaccharides (cellulose and hemicelluloses) are already attacked at the comparatively low temperatures when the chips come into contact with white liquor or the recirculated black liquor charged to enhance impregnation prior to the