Subject Area物理化学
Hydrogenation of Corn Stalk into Polyols
Pang JF(庞继峰); Zheng MY(郑明远); Wang AQ(王爱琴); Zhang T(张涛)
Conference Name7th Asia Pacific Congress on Sustainable Energy & Environmental Technologies
Conference Date2009-10-15
Conference Place中国
Funding OrganizationChina University of Petroleum
Abstractcorn stalks were used as model lignocelluloses feedstock with or without pretreatments for the catalytic conversion to polyols. The reactions were operated at 245 oC and a pressure of 6 MPa in aqueous solution with the Ni-W2C/AC catalyst we reported previously [2]. It was found that pretreatment method affected greatly the final conversion and product yields. Lime, hot water and supercritical CO2 pretreatments did not show apparent improvement for the corn stalk catalytic conversion, while steeping with NaOH, high boiling point solvent, ammonia or H2O2 presented a remarkable promotional effect on the conversion of corn stalks. Ammonia and H2O2 steeping pretreatments were investigated in detail due to their high efficiency and low pollution. The results shown that 15% ammonia steeping could efficiently remove the vegetable tallow and 65% lignin, The derived lignocelluloses produced EG and 1,2-PG at yields of 20.7% and 14.5 %, respectively. The 2% H2O2 steeping eliminated 50% of lignin, the yields of EG and 1,2-PG were 22.1% and 10.4%. With the combination of 15% ammonia steeping and 2% H2O2 steeping, vegetable tallow and 80% lignin were removed, and the EG and 1,2-PG yields reached 28.4% and 13.8%.
Document Type会议论文
Corresponding AuthorZhang T(张涛)
Recommended Citation
GB/T 7714
Pang JF,Zheng MY,Wang AQ,et al. Hydrogenation of Corn Stalk into Polyols[C],2009:169/1.
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