title: Hydrothermal liquefaction of cornstalk: 7-lump distribution and characterization of products.
abstract: Hydrothermal liquefaction of cornstalk at 180-300 °C at ratios of water to cornstalk of 6-14 was conducted, and the reaction products were lumped into gas, water-soluble organics (ethanol-insoluble and ethanol-soluble organics), heavy oil, volatile organic compounds, and acid-soluble and acid-insoluble solid residues. Low temperature, high ratio of water to cornstalk, and short reaction time favored the formation of bio-oil (ethanol-insoluble organics, ethanol-soluble organics, and heavy oil) but inhibited the formation of acid-insoluble solid residue. Increasing temperature and reaction time increased the yields of gas and volatile organic compounds, whereas decreased the yield of acid-soluble solid residue. Bio-oil yields increased first and then decreased at a ratio of water to cornstalk higher than 10. Overall, the studied reaction parameters influenced the conversion among the lumps and product properties. This study suggests that lump analysis provides a promising approach to describe the product distributions in biomass liquefaction.
authors.affiliation: State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou 510640, China.
authors.forename: Hua-Min
authors.initials: HM
authors.lastname: Liu
authors.forename: Ming-Fei
authors.initials: MF
authors.lastname: Li
authors.forename: Run-Cang
authors.initials: RC
authors.lastname: Sun
mesh_terms: D003314:Corn Oil / Q000737:chemistry*; D005740:Gases / Q000737:chemistry*; D006358:Hot Temperature; D009930:Organic Chemicals / Q000737:chemistry*; D035261:Plant Components, Aerial / Q000737:chemistry*; D012996:Solutions / Q000737:chemistry; D055549:Volatile Organic Compounds / Q000737:chemistry*; D014867:Water / Q000737:chemistry*; D003313:Zea mays / Q000737:chemistry*
chemical_list: D005740:Gases; D009930:Organic Chemicals; D012996:Solutions; D055549:Volatile Organic Compounds; D014867:Water; D003314:Corn Oil