Abstract:

In order to develop economic and efficient pretreatment technologies, the research progress on pretreatment of lignocellulose at home and abroad in recent 10 years was reviewed detailedly. And the pretreatment processes, such as physical methods, physical-chemistry methods, chemical methods and biologic methods were em-phatically analyzed, from which dilute acid pretreatment method, steam explosion pretreatment method and bio-logical pretreatment method were found to be most development potential. Pretreatment methods with low cost, high yield and less pollution are needed to be developed for shortages of the existing methods. And some propos-als for development of pretreatment technologies were put forward as well.