Processing Lignins. Guozhan Jiang. Objectives. To find a method to convert Etek and Asian lignins into bio-oils. To characterise the products using PyGC/MS and other chromatographic or spectroscopic methods. To upgrade the bio-oils to valuable chemicals or transportation oils. . Outline.
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Extracted using: ethanol/toluene (6hrs)
0.1M NaOH boiling 1hr
72% H2SO4 treatment 4hrs
NaClO2 bleaching of holocellulose
17.5% NaOH treatment of cellulose
Species containing m/z =94 and 78
Asian lignin @600oC for 15s
m/z = 94 and 78
Etek lignin@600oC for 15s
Asian lignin @400oC for 15s
Etek lignin @600oC for 15s
Etek lignin@400oC for 15s
Extractive free sample
dissolved in 0.1M NaOH,