ZHANG Zhibo, DONG Changqing, YE Xiaoning, et al. Preparation of levoglucosenone by catalytic pyrolysis of cellulose over solid phosphoric acid[J]. CIESC Journal, 2014, (3): 912-920.
ZHANG Zhibo, DONG Changqing, YE Xiaoning, et al. Preparation of levoglucosenone by catalytic pyrolysis of cellulose over solid phosphoric acid[J]. CIESC Journal, 2014, (3): 912-920.DOI: 10.3969/j.issn.0438-1157.2014.03.021.
Solid phosphoric acid supported on SBA-15 carrier was mechanically mixed with the cellulose
and then the mixture was subjected to fast pyrolysis to prepare levoglucosenone (LGO). Using Py-GC/MS (pyrolysis-gas chromatography/mass spectrometry) the effect of temperature and catalyst/cellulose ratio on pyrolytic products mainly LGO was examined. The results indicated that the presence of solid phosphoric acid could inhibit formation of levoglucosan (LG) and other byproducts
but promote greatly and selective formation of LGO
one of major pyrolytic products. The maximal LGO yield and relative content were obtained at the temperature of 350℃ and the catalyst/cellulose ratio of 1/1
having the relative peak area of 68.6%. Moreover
the solid phosphoric acid would also promote the dehydration of LG to form LGO.