Welcome to Biomass Chemical Engineering,

›› 2013, Vol. 47 ›› Issue (4): 12-16.

• 研究报告 • Previous Articles     Next Articles

Studies on Steam Explosion of Broussonetia papyrifera Bark

ZHAO Jian, WEI Min, LIU Jun-li, JIANG Jian-chun

  1. Institute of Chemical Industry of Forest Products, CAF;National Engineering Lab.for Biomass Chemical Utilization; Key and Open Lab.of Forest Chemical Engineering, SFA;Key Lab.of Biomass Energy and Material, Jiangsu Province, Nanjing 210042, China
  • Received:1900-01-01 Revised:1900-01-01 Online:2013-07-30 Published:2013-07-30

Abstract: The effects of steam explosion pressure and pressure holding time on the yield of reducing sugar degraded by acid hydrolysis after steam explosion pretreatment of Broussonetia papyrifera bark were investigated. The greatest reducing sugar yield 76.48%. It was obtained under a steam explosion pressure of 2.2 MPa, and a pressure holding time of 9 min. In the process of acid hydrolysis of the raw material without steam explosion pretreatment, reducing sugar yield was only 47.25% of the theoretical amount. Comparing with the non-pretreatment material, the reducing sugar yield of pretreatment material was increased by 61.86%. The structural variations of the fibres of B.papyrifera bark before and after steam explosion pretreatment were observed by scanning electron microscope.