Reaction parameters effect on hydrothermal liquefaction of castor (Ricinus Communis) residue for energy and valuable hydrocarbons recovery

Ravneet Kaur, Poonam Gera, Mithilesh Kumar Jha and Thallada Bhaskar

Renewable Energy, 2019, vol. 141, issue C, 1026-1041

Abstract: Castor plant (Ricinus communis) is a fast growing, perennial shrub also known as wonder tree from Euphorbiaceae family. India ranks globally first with production of 87% of the castor seed, while second and third largest producer countries, China and Brazil produced 5% and 1%, respectively. Hydrothermal liquefaction (HTL) is one of the most promising thermochemical conversion process used to convert wet/high moisture biomass to biofuels and value-added hydrocarbons. HTL of castor residue (stem and leaves) was performed at 260, 280, 300 °C and 15, 30, 60, 90 min. Investigations on the effect of temperature and residence time on distribution of products (bio-oil, bio-char) indicated the maximum Total Bio-oil (TBO) yield of c.a. 15.8 wt% was obtained at 300 °C at 60 min. The major compounds observed by GC-MS were phenols and their derivatives, aromatic hydrocarbons, N-containing compounds, acids. In addition, the recovery of carbon and corresponding energy recovery with respect to castor residue indicated that the carbon and energy recovery for bio-oil 1 were 24.23% and 31.08% respectively. An increase in the carbon and decrease of oxygen content in bio-oil (BO) demonstrates that the castor residue can be used as a potential feedstock for bioenergy applications.

Keywords: Ricinus communis; Hydrothermal liquefaction; Bio-oil; Carbon recovery; Energy recovery (search for similar items in EconPapers)
Date: 2019
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Citations: View citations in EconPapers (8)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:renene:v:141:y:2019:i:c:p:1026-1041

DOI: 10.1016/j.renene.2019.04.064

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