期刊
JOURNAL OF SUPERCRITICAL FLUIDS
卷 99, 期 -, 页码 88-94出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.supflu.2015.01.019
关键词
Supercritical water gasification; Biorefinery; Hydrochar; Sustainability; Nutrients recycling; Microalgae
资金
- Valicor Renewables
- Small Company Innovation Program of the Michigan Corporate Relations Network
- National Science Foundation [CBET-1133439]
- Div Of Chem, Bioeng, Env, & Transp Sys
- Directorate For Engineering [1133439] Funding Source: National Science Foundation
This article reports experiments where lipid-extracted algal hydrochar (LEH) was gasified in supercritical water to recover energy (in the form of fuel gases) for use within a biorefinery and to recycle nitrogen (in the form of ammonium) for algae growth. Supercritical water gasification (SCWG) of LEH at 450-600 degrees C produced H-2, CO2, CH4, CO, C2H4, and C2H6, and converted the organic-bound nitrogen in the LEH into ammonium in the aqueous phase. Increased gasification severity increases the energy and nitrogen recovery. An energy recovery of 75% and complete nitrogen recovery as ammonium were achieved after SCWG at 600 degrees C and 6 h. These findings demonstrate for the first time the conversion of the byproduct LEH to materials that can be used within an algal biorefinery. Recovering energy and nutrients in this manner may improve the environmental and economic sustainability of making nutraceuticals and biodiesel from microalgal lipids via an approach that uses hydrothermal carbonization of the biomass followed by solvent extraction of the lipids from the hydrochar. (C) 2015 Elsevier B.V. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据