Rheological Behavior and Steam Gasification of Bio-slurry

This paper provides a new approach for using the by-products of bio-oil and bio-char, which are derived from the biomass gas station in rural China. Bio-slurry was prepared by blending bio-oil with different concentrations of bio-char (0-20 wt.%), and the production of hydrogen from steam gasification of bio-slurry was investigated. It is found that the bio-slurry fuels prepared from the carbonization products have better fuel properties including calorific value and stability in comparison to those prepared using fast pyrolysis products. The results demonstrate that the apparent viscosities of bio-slurry vary with bio-char contents (in the range of 0 to 20 wt.%) and temperature (from 7 oC to 50 oC). In addition, the bio-slurry exhibits good stability. Steam gasification of bio-slurry can produce hydrogen-rich gas, and the high gas yields (especially for H2 and CO) are obtained at around 900 oC.