Abstract
This two-part study firstly investigated Tetraselmis suecica grown in different CO2 (0.04–15% v/v) concentration through indoor and outdoor cultivation systems. A high CO2 concentration led to a high lipid content, and low nitrogen and oxygen content, which are desirable for transport fuel production. Pyrolysis characteristics were investigated by TG-IR and synchrotron IR microscopy. The results show Tetraselmis suecica grown in 10% CO2 had the highest decomposition rate corresponding to more volatile products produced during the main thermal cracking stage and derived from protein-and lipid-corresponding functional groups. Moreover, a high reaction temperature and CO2 concentration resulted in a low retention of surface functional groups. The nitrogen functional groups initially decomposed at a temperature range of 250–300 °C and still remained at 550 °C, while the lipid-corresponding functional groups completely disappeared at a temperature range of 400–500 °C. Besides, the decomposition of chemical components followed the order of carbohydrate, protein and lipid.
| Language | English |
|---|---|
| Pages | 1-10 |
| Number of pages | 10 |
| Journal | Bioresource Technology |
| Volume | 229 |
| DOIs | |
| Publication status | Published - 1 Apr 2017 |
Keywords
- Microalgae
- Carbon dioxide
- Pyrolysis
- FTIR
- TG-IR
- Synchrotron
Cite this
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A study on growth and pyrolysis characteristics of microalgae using thermogravimetric analysis-infrared spectroscopy and synchrotron fourier transform infrared spectroscopy. / Li, Fanghua; Chakravartula Srivatsa, Srikanth; Batchelor, Warren; Bhattacharya, Sankar.
In: Bioresource Technology, Vol. 229, 01.04.2017, p. 1-10.Research output: Contribution to journal › Article › Research › peer-review
TY - JOUR
T1 - A study on growth and pyrolysis characteristics of microalgae using thermogravimetric analysis-infrared spectroscopy and synchrotron fourier transform infrared spectroscopy
AU - Li, Fanghua
AU - Chakravartula Srivatsa, Srikanth
AU - Batchelor, Warren
AU - Bhattacharya, Sankar
PY - 2017/4/1
Y1 - 2017/4/1
N2 - This two-part study firstly investigated Tetraselmis suecica grown in different CO2 (0.04–15% v/v) concentration through indoor and outdoor cultivation systems. A high CO2 concentration led to a high lipid content, and low nitrogen and oxygen content, which are desirable for transport fuel production. Pyrolysis characteristics were investigated by TG-IR and synchrotron IR microscopy. The results show Tetraselmis suecica grown in 10% CO2 had the highest decomposition rate corresponding to more volatile products produced during the main thermal cracking stage and derived from protein-and lipid-corresponding functional groups. Moreover, a high reaction temperature and CO2 concentration resulted in a low retention of surface functional groups. The nitrogen functional groups initially decomposed at a temperature range of 250–300 °C and still remained at 550 °C, while the lipid-corresponding functional groups completely disappeared at a temperature range of 400–500 °C. Besides, the decomposition of chemical components followed the order of carbohydrate, protein and lipid.
AB - This two-part study firstly investigated Tetraselmis suecica grown in different CO2 (0.04–15% v/v) concentration through indoor and outdoor cultivation systems. A high CO2 concentration led to a high lipid content, and low nitrogen and oxygen content, which are desirable for transport fuel production. Pyrolysis characteristics were investigated by TG-IR and synchrotron IR microscopy. The results show Tetraselmis suecica grown in 10% CO2 had the highest decomposition rate corresponding to more volatile products produced during the main thermal cracking stage and derived from protein-and lipid-corresponding functional groups. Moreover, a high reaction temperature and CO2 concentration resulted in a low retention of surface functional groups. The nitrogen functional groups initially decomposed at a temperature range of 250–300 °C and still remained at 550 °C, while the lipid-corresponding functional groups completely disappeared at a temperature range of 400–500 °C. Besides, the decomposition of chemical components followed the order of carbohydrate, protein and lipid.
KW - Microalgae
KW - Carbon dioxide
KW - Pyrolysis
KW - FTIR
KW - TG-IR
KW - Synchrotron
UR - http://www.scopus.com/inward/record.url?scp=85009144618&partnerID=8YFLogxK
U2 - 10.1016/j.biortech.2017.01.005
DO - 10.1016/j.biortech.2017.01.005
M3 - Article
VL - 229
SP - 1
EP - 10
JO - Bioresource Technology
T2 - Bioresource Technology
JF - Bioresource Technology
SN - 0960-8524
ER -