Valorizing of weeds algae through the solar assisted pyrolysis: Effects of dependable parameters on yields and characterization of products

M.A. Rahman

Renewable Energy, 2020, vol. 147, issue P1, 937-946

Abstract: In this study, a novel technique is applied to recover the pyrolysis products (bio-oil, char, and non-condensable gas) from algal biomass (E. compressa) by utilizing solar energy. To observe the parametric effect on product distribution, the temperature was varied from 250 to 600 °C, heating rate of 20–100 °C/min, particles feed size of <0.5–2.5 mm and sweeping gas flow rate of 3–15 liter per minute (lpm). The maximum solar bio-oil yield of 38.12 wt% was obtained at 400 °C, 9 lpm, <0.5 mm and 20 °C/min. The non-condensable gas evolution rate increase with a rise in temperature except for CO2. The bio-oils were characterized and their economic feasibility was evaluated by proximate, ultimate and GC-MS analysis whereas char product was characterized by proximate and FTIR. The gaseous products were analyzed by micro-gas chromatography (GC). The products yield and their characteristics highly dependent on temperature variation. The products possess high energy contents which are a potential alternative fuel. The energy upgrading factor, and solar to chemical conversion efficiency was also calculated.

Keywords: Solar pyrolysis; Solar reactor; Algae; Solar products; Non-condensable gas (search for similar items in EconPapers)
Date: 2020
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (1)

Downloads: (external link)
http://www.sciencedirect.com/science/article/pii/S096014811931376X
Full text for ScienceDirect subscribers only

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:eee:renene:v:147:y:2020:i:p1:p:937-946

DOI: 10.1016/j.renene.2019.09.046

Access Statistics for this article

Renewable Energy is currently edited by Soteris A. Kalogirou and Paul Christodoulides

More articles in Renewable Energy from Elsevier
Bibliographic data for series maintained by Catherine Liu ().