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| Research on Pyrolysis of Bamboo Willow Alkali Lignin |
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| DOI：10.11980/j.issn.0254-508X.2016.10.001 |
| Key Words:bamboo willow alkali lignin additives heavy oil |
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| Abstract:Pyrolysis of the bamboo willow alkali lignin, and with additives of NiCl2、H-ZSM-5 and Ni-ZSM-5 was carried out at 700℃ for 15 min. The products were analyzed by NMR and Gel-permeation chromatograph. The results showed that the liquid content of bio-oil decreased and gas level increased, solid coke remained unchanged after the use of additives. In heavy oil, aliphatic hydroxyl and carboxyl group contents dropped obviously, β-hydroxy-phenyl OH content increased. In light oil, the content of methanol and catechol decreased, acetic acid concentration kept constant, the content of water increased. The number average and weight average molecular weights of heavy oil decreased but the molecular weight distribution was undiversified. |
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