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Techno-economic analysis of a two-step fermentation process for bio-butanol production from cooked rice
- Source :
- Sustainable Energy & Fuels. 5:3705-3718
- Publication Year :
- 2021
- Publisher :
- Royal Society of Chemistry (RSC), 2021.
-
Abstract
- The food wastage problem and its associated issues have become a significant threat to sustainable development, particularly in developing countries. Cooked rice, which has been reported to be one of the most abundant regional food wastes, is a substantial feedstock for biofuel production due to its rich carbon content. In this study, both solid-state and acetone–butanol–ethanol (ABE) fermentations were conducted in series with Aspergillus oryzae and aero-tolerant Clostridium acetobutylicum YM1 for the biobutanol production. To validate the process parameters for an industrial-scale process, it is critical to examine the effects of process parameters using a process simulation tool. To this end, by adapting lab-scale process results, a techno-economic evaluation of the biobutanol production from the cooked rice by two-step fermentation was performed using SuperPro Designer®. This study aims to examine various scenarios for cooked rice utilization to produce butanol while examining process optimization and minimization of operational expenses for the aerobic ABE fermentation and microbial saccharification. According to the simulation results, butanol production cost was estimated to be 1.24 $ kg−1, incorporating a cost reduction of 0.58 $ kg−1 from heat integration, steam and power generation, while eliminating costs for the unnecessary commercial enzymes and N2 gas for purging. Finally, sensitivity analysis was applied to demonstrate the plant feasibility concerning potential fluctuations in the changing biofuel market and environmental conditions.
- Subjects :
- Clostridium acetobutylicum
biology
Renewable Energy, Sustainability and the Environment
020209 energy
Butanol
food and beverages
Energy Engineering and Power Technology
02 engineering and technology
Raw material
biology.organism_classification
Pulp and paper industry
chemistry.chemical_compound
Fuel Technology
020401 chemical engineering
chemistry
Biofuel
Process integration
0202 electrical engineering, electronic engineering, information engineering
Environmental science
Fermentation
Process optimization
0204 chemical engineering
Process simulation
Subjects
Details
- ISSN :
- 23984902
- Volume :
- 5
- Database :
- OpenAIRE
- Journal :
- Sustainable Energy & Fuels
- Accession number :
- edsair.doi...........9bc7add4ab64e98fa63eed3e2f49b3dc