NOVELTY - Refining biomass (m1) involves disrupting biomass cellular structure; and dissolving the biomass at high temperatures with treatments.    USE - For refining biomass; in increasing and maintaining product concentration; in generating secondary compositions selected from ethanol, adhesives, bioplastics, biofuel, cattle feed, butanol, biochemicals and ethyl acetate (all claimed; for blending final dissolved or partially dissolved biomass products with plastics to create unique structural materials including railroad ties, body parts, and building materials; for enhancing production of syngas through high temperature pyrolysis or gasification; for gasifying waste products.    ADVANTAGE - The method is a cost effective; provides a fast, complete and nearly complete hydrolysis of biomass with high percentage, employing minimal or no chemical and minimal mechanical inputs, while selectively minimizing degradation of substrate to products such as hydroxymethyl furfural which are useful for commercial purposes. The method minimizes residence times in dissolving hemicellulose to xylose and glucose for converting high percentage of biomass into high quality products; uses minimal electrical energy inputs; conserves heat energy within the process; reduces equipment requirements while producing concentrated products; utilizes dissolved products which are converted into various chemicals, adhesives, plastics, gases, ruminant animal feed and protein/amino acid concentrates; produces new, unprecedented volumes of protein, polypeptide and/or amino acids to add to local diets notoriously deficient in protein based essential nutrients; produces glucose and other products in high concentrations, which are valuable in fermentations where low concentrations of product are economically problematic; produces fermentable sugars and other products without the use of expensive enzymes, the use of which is rate and product concentration limiting; removes fermentation inhibitors.    DETAILED DESCRIPTION - INDEPENDENT CLAIMS are included for the following:    (1) an energy saving mechanism for use in biomass treatments involving a heat and product recirculation loop; and    (2) concentrating products formed by the method (m1) involving removing water by adding heat to portions of hydrolysis stream while controlling pressure, to produce extracted steam and recondensing most of the steam.