title: Gasification of cyanobacterial in supercritical water.
abstract: Cyanobacterial collected from eutrophic freshwater lakes constituted intractable waste with a rich algae biomass content. Supercritical water gasification (SCWG) was proposed to treat the cyanobacterial and to produce hydrogen for energy. The H 2 yield reached 2.92 mol/kg at reaction conditions of 500 °C, 30 min and 22 MPa; this yield accounted for 26% of the total gaseous products. Abundant ammonia and dissolved reactive phosphorous were concentrated in the liquid product, which could be recovered and used as a liquid fertilizer. Solid residue, which accounted only for about 1% of the wet weight, was mainly composed of coke and ash. The efficiency of H 2 production was better than that from other biomass, because of the abundant organic matter in cyanobacterial. Thus, cyanobacterial are an ideal biomass feedstock for H 2 production from SCWG.
authors.affiliation: a College of Environment , Hohai University , Nanjing , Jiangsu , People's Republic of China.
authors.forename: Huiwen
authors.initials: H
authors.lastname: Zhang
authors.forename: Wei
authors.initials: W
authors.lastname: Zhu
authors.forename: Zhirong
authors.initials: Z
authors.lastname: Xu
authors.forename: Miao
authors.initials: M
authors.lastname: Gong
mesh_terms: D000641:Ammonia / Q000737:chemistry; D000458:Cyanobacteria; D006358:Hot Temperature; D006859:Hydrogen / Q000737:chemistry*; D010758:Phosphorus / Q000737:chemistry; D014867:Water / Q000737:chemistry
chemical_list: D014867:Water; D010758:Phosphorus; D000641:Ammonia; D006859:Hydrogen
keywords: cyanobacterial; eutrophication; gasification; hydrogen; supercritical water