2020
DOI: 10.1002/bbb.2081
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Techno‐economic analysis of co‐production of 2,3‐butanediol, furfural, and technical lignin via biomass processing based on deep eutectic solvent pretreatment

Abstract: This study analyzed the techno‐economic feasibility of a biomass conversion process enabled by high‐solid loading deep eutectic solvent (DES) pretreatment for the co‐production of 2,3‐butanediol (BDO), furfural, and technical lignin. Aspen plus was used for process simulation; economic analysis models were developed to evaluate commercial potential; sensitivity analysis was carried out to evaluate the effects of key parameters on the production cost of 2,3‐BDO; and Monte‐Carlo simulation was used for uncertain… Show more

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Cited by 38 publications
(24 citation statements)
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References 47 publications
(92 reference statements)
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“…The 2,3‐BDO market price is currently similar to the 1,4‐BDO, around 3.23 $/kg 14. The fermentation process could be a sustainable alternative, provided that it generates an economic advantage.…”
Section: Introductionmentioning
confidence: 99%
“…The 2,3‐BDO market price is currently similar to the 1,4‐BDO, around 3.23 $/kg 14. The fermentation process could be a sustainable alternative, provided that it generates an economic advantage.…”
Section: Introductionmentioning
confidence: 99%
“…94 It was also mentioned that after lignin precipitation the resulting liquor was evaporated at 70 °C in a convection oven to remove excess water to recycle ChCl:EG, 94 whereas during the process simulation the resultant liquor was directly reused for pretreatment. 93 Actually, the ChCl:EG concentration is highly diluted due to the postwashing; even if some of it is recycled, it would result in abundant wastewater (containing ChCl:EG) accumulation for a continuous model. The residual ChCl:EG and H 2 SO 4 in the pretreated biomass cannot be ignored because of their toxicity to enzymes and microbes.…”
Section: ■ Results and Discussionmentioning
confidence: 99%
“…Strikingly, inconsistencies in critical operation steps and conversion yields between the cited references are found. For example, Zang et al reported that switchgrass pretreated by choline chloride:ethylene glycol (ChCl:EG) with 1% H 2 SO 4 was washed with an water–acetone mixture and then subjected to enzymatic hydrolysis with the direct addition of water and enzymes. However, it is inconsistent with the original procedure, where the citrate was used as a buffer .…”
Section: Resultsmentioning
confidence: 99%
“…In a recent study, a biomass conversion process resulting from the pretreatment of high‐load deep eutectic solvent was carried out for the production of 2,3‐BDO, furfural, and lignin. The MSP was estimated at 1.703–1.736 $ kg −1 , about half the current 2,3‐BDO market price 102 . The MSP (minimum selling price) can also be based on the utility costs for certain raw materials.…”
Section: Resultsmentioning
confidence: 99%