Techno-Economic Analysis of 2,3-Butanediol Production from Sugarcane Bagasse

Maity, Sunil Kumar (2023) Techno-Economic Analysis of 2,3-Butanediol Production from Sugarcane Bagasse. ACS Sustainable Chemistry and Engineering, 11 (22). pp. 8337-8349. ISSN 2168-0485

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Abstract

Sugarcane bagasse (SCB) is a significant agricultural residue generated by sugar mills based on sugarcane crop. Valorizing carbohydrate-rich SCB provides an opportunity to improve the profitability of sugar mills with simultaneous production of value-added chemicals, such as 2,3-butanediol (BDO). BDO is a prospective platform chemical with multitude of applications and huge derivative potential. This work presents the techno-economic and profitability analysis for fermentative production of BDO utilizing 96 MT of SCB per day. The study considers plant operation in five scenarios representing the biorefinery annexed to a sugar mill, centralized and decentralized units, and conversion of only xylose or total carbohydrates of SCB. Based on the analysis, the net unit production cost of BDO in the different scenarios ranged from 1.13 to 2.28 US$/kg, while the minimum selling price varied from 1.86 to 3.99 US$/kg. Use of the hemicellulose fraction alone was shown to result in an economically viable plant; however, this was dependent on the condition that the plant would be annexed to a sugar mill which could supply utilities and the feedstock free of cost. A standalone facility where the feedstock and utilities were procured was predicted to be economically feasible with a net present value of about 72 million US$, when both hemicellulose and cellulose fractions of SCB were utilized for BDO production. Sensitivity analysis was also conducted to highlight some key parameters affecting plant economics.

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IITH Creators:

IITH Creators	ORCiD
Maity, Sunil Kumar	https://orcid.org/0000-0002-1832-5060

Item Type:

Article

Uncontrolled Keywords:

2,3-butanediol; net present value; sensitivity analysis; sugarcane bagasse; techno-economic analysis; Bagasse; Cellulose; Economic Analysis; Mills; Plants; Production; Profitability; Sugar Cane; Agricultural wastes; Bagasse; Cellulose; Cost benefit analysis; Economic analysis; Feedstocks; Profitability; Sugar cane; 2,3-butanediol; American Chemical Society; Butanediol; Hemicellulose fraction; Sugar mills; Sugar-cane bagasse; Sugarcane crops; Techno-Economic analysis; The net present value (NPV); Value-added chemicals; Sensitivity analysis

Subjects:

Chemical Engineering
Chemical Engineering > Technology of industrial chemicals
Chemical Engineering > Food and Beverage technology

Divisions:

Department of Chemical Engineering

Depositing User:

Mr Nigam Prasad Bisoyi

Date Deposited:

12 Nov 2023 10:21

Last Modified:

12 Nov 2023 10:21

URI:

http://raiithold.iith.ac.in/id/eprint/11743