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bce ›› 2016, Vol. 50 ›› Issue (2): 29-33.

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Steam Gasification of Sawdust for Production of Hydrogen-rich Gas

SUN Ning, YING Hao, XU Wei, SUN Yun-juan, XU Yu, JIA Shuang   

  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:2015-10-12 Online:2016-03-30 Published:2016-03-31

Abstract: Steam gasification experiments of sawdust for the production of hydrogen-rich gas were carried out on the high-temperature fixed bed reactor.The effects of temperature (750 -1000℃) and steam flow rate (0.290-1.409 g/min) on the gas volume fraction, low heating value (QLHV) of the gas and gas yield were investigated .The results showed that different temperatures and steam flow rates had great influences on the gas volume fraction. Increasing reactor temperature and introducing appropriate steam were beneficial to the production of hydrogen. However, the heating value of product was decreased with the increasing amount of steam at high temperature.Taking influence of various aspects into consideration, the optimal gasification conditions were the flow rate of steam 1.033 g/min and 900℃.At these conditions, the hydrogen content was 45.74%, the QLHV of the gas was 11.69 MJ/m3 and the dry gas yield was 1.96 L/g.

Key words: biomass, steam gasification, high temperature, hydrogen-rich gas

CLC Number: