Characteristics of Cotton Stalk Torrefaction Catalyzed by Magnesium Chloride
2016
Liu, Xinliang | Dong, Yan | Yin, Hailiang | Zhang, Jian
Multistep fast pyrolysis of magnesium chloride (MgCl2)–impregnated biomass materials offers a promising way to obtain a value-added chemical-rich liquid product. In this work, cotton stalk with MgCl2was pyrolyzed in a thermogravimetric analyzer and a fixed-bed reactor at 260°C. The feedstock characteristics, product distribution, and liquid-phase compositions were analyzed. The presence of MgCl2 changed the product distributions and liquid-phase composition. Only two targeted chemicals were successfully collected for the purpose of chemical production. The effect of catalyst loading on pyrolysis behavior for furfural and acetic acid production was studied. The furfural and acetic acid contents in the water-free liquid phase were about 28 and 51 percent, respectively, whereas the MgCl2 content was 18.54 percent.
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