Slow pyrolysis of Defatted Seeds Cakes of African star apple and silk cotton for production of bio-oil

Muhammad Abdullahi Sokoto, Bijoy Biswas, Jitendra Kumar and Thallada Bhaskar

Renewable Energy, 2020, vol. 146, issue C, 1710-1716

Abstract: The prospect of de-oiled seed cakes of African star apple (ASA) and Silk cotton (SCS) as a source of bio-oil was investigated using slow pyrolysis. The study was carried out at a temperatures range of 300–450 °C with a heating rate of 10 °C min−1 for 60 min residence period in a nitrogen atmosphere. The optimum bio-oil yields for SCS (33.1%) and for ASA (48.3%) were achieved at 400 °C. The Bio-char yield decreases from 300 °C to 450 °C (38%–28%) for ASA seedcake which could be due to greater primary decomposition of the biomass samples. A similar trend also observed for SCS with a lowest bio-char yield of 32% at 450 °C. The GC-MS analysis showed that ASA bio-oil has an acids (25.15%), phenolics (18.35%), and hydrocarbons (18.58%) as the major compounds. N-containg compounds (38.17%), carboxylic acid (23.79%), and phenolic (16.57%) were the dominant compounds in SCS bio-oil. The FT-IR absorption peak showed at 1660 cm−1 (C = N stretching) with higher intensity for SCS bio-oil. At optimum temperature 400 °C, 72% of ASA feedstock was converted into bio-oil and gaseous products (conversion), while 68% conversion was obtained from SCS at optimum temperature 400 °C.

Keywords: Pyrolysis; Silk cottonseed; African star apple; Bio-oil; Bio-char (search for similar items in EconPapers)
Date: 2020
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (2)

Downloads: (external link)
http://www.sciencedirect.com/science/article/pii/S0960148119311656
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:146:y:2020:i:c:p:1710-1716

DOI: 10.1016/j.renene.2019.07.145

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 ().