Abstract：
:We investigated the solid particle flow characteristics and biomass gasification in a clapboard-type internal circulating fluidized bed reactor. The effect of fluidization velocity on particle circulation rate and pressure distribution in the bed showed that fluidization velocities in the high and low velocity zones were the main operational parameters controlling particle circulation. The maximum internal circulation rates in the low velocity zone came almost within the range of velocities in the high velocity zone, when u(H)/u(mf)=2.2-2.4 for rice husk and u(H)/u(mf)=3.5-4.5 for quartz sand. In the gasification experiment, the air equivalence ratio (ER) was the main controlling parameter. Rice husk gasification gas had a maximum heating value of around 5000 kJ/m(3) when ER=0.22-0.26, and sawdust gasification gas reached around 6000-6500 kJ/m(3) when ER=0.175-0.24. The gasification efficiency of rice husk reached a maximum of 77% at ER=0.28, while the gasification efficiency of sawdust reached a maximum of 81% at ER=0.25.
journal_name
Biotechnol Advjournal_title
Biotechnology advancesauthors
Zhou ZQ,Ma LL,Yin XL,Wu CZ,Huang LC,Wang Cdoi
10.1016/j.biotechadv.2009.04.016subject
Has Abstractpub_date
2009-09-01 00:00:00pages
612-5issue
5eissn
0734-9750issn
1873-1899pii
S0734-9750(09)00067-6journal_volume
27pub_type
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