Method for preparing fuel ethanol by carrying out mixed hydrolysis on wood fiber wastes

The invention discloses a method for preparing fuel ethanol by carrying out mixed hydrolysis on wood fiber wastes. The method comprises the steps of mixing the wood fiber wastes are mixed in different ratios according to different plant families and genuses, and carrying out one-step or multi-step hydrothermal pretreatment, so that 'one pot process' cohydrolysis is realized on mixed raw material semicellulose, and follow-up coenzymolysis on cellulose is facilitated. Multiple raw materials are mixed, sustainable development of the fuel ethanol industry is facilitated, and high-valued application on urban greening garbage and industrial and agricultural wood fiber wastes can be realized. 本发明公开了种木质纤维废弃物混合水解制取燃料乙醇的方法，将木质纤维废弃物按照植物科属类别不同进行不同比例混合，并进行步或分步水热预处理，实现混合原料半纤维素"锅法"共水解，有利于后续纤维素的共酶解。多原料混合利于燃料乙醇产业可持续发展，并可实现城镇绿化垃圾和工农业木质纤维废弃物的高值化利用。