Tailoring pyrogenic products from pyrolysis of defatted Euglena gracilis using CO2 as reactive gas medium

被引：17

作者：

Jung, Jong-Min ^{[1
]}

Kim, Sok ^{[2
]}

Lee, Jechan ^{[3
]}

Oh, Jeong Ik ^{[4
]}

Choi, Yoon-E. ^{[2
]}

Kwon, Eilhann E. ^{[1
]}

机构：

[1] Sejong Univ, Dept Environm & Energy, Seoul 05006, South Korea

[2] Korea Univ, Div Environm Sci & Ecol Engn, Seoul 02841, South Korea

[3] Ajou Univ, Dept Environm & Safety Engn, Suwon 16499, South Korea

[4] Land & Housing Inst, Adv Technol Dept, Daejeon 34047, South Korea

来源：

ENERGY | 2019年 / 174卷

基金：

新加坡国家研究基金会;

关键词：

Euglena gracilis; Microalgae; Thermo-chemical process; Pyrolysis; Carbon dioxide; Syngas; BIODIESEL PRODUCTION; THERMAL-DEGRADATION; BIOMASS PYROLYSIS; TO-BIOENERGY; WASTE; BIOFUELS; ENERGY; MICROALGAE; CATALYSTS; FUEL;

D O I：

10.1016/j.energy.2019.02.153

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

Pyrolysis of defatted Euglena gracilis was investigated in this study to maximize energy recovery from algal biomass after lipid extraction. Prior to pyrolysis of defatted E. gracilis, the growth rate of E. gracilis was monitored to determine its potential as an initial carbonaceous feedstock for pyrolysis. This study revealed that the cell density of E. gracilis linearly increased for the first 5 days, during which the cell density reached 6.06 +/- 0.82 g L-1, demonstrating that defatted E. gracilis is a promising feedstock for pyrolysis. To increase the thermal efficiency of defatted E. gracilis pyrolysis, CO2 was employed as a reactive gas medium. CO levels were increased by 45% following pyrolysis of defatted E. gracilis in a CO2 environment compared to in an N-2 environment. Considering that CO is a highly combustible permanent gas, the use of CO2 in pyrolysis may result in the production of more fuel-range gaseous chemicals. Additionally, CO2 utilization increased the gaseous product yield compared to N-2-pyrolysis for treating the defatted algal biomass while decreasing tar yield. (C) 2019 Elsevier Ltd. All rights reserved.

引用

页码：184 / 190

页数：7

共 46 条

[1] Trichloroethylene adsorption by pine needle biochars produced at various pyrolysis temperatures [J].