Simulation and energy analysis of the ABE fermentation integrated with gas stripping

Lodi, Gabriele; Guido, Giorgia De; Pellegrini, Laura

doi:10.1016/j.biombioe.2018.06.012

Cited by 19 publications

(15 citation statements)

References 30 publications

(44 reference statements)

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“…It was also found to be related to productivity, where a low rate of recovery of butanol decreases the energy requirement. These results are consistent with the results reported for gas stripping by Lodi et al, (2018).…”

Section: (B))supporting

confidence: 93%

Butanol production via vacuum fermentation: An economic evaluation of operating strategies

Díaz

Stosch

Willis

2019

Chemical Engineering Science

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Butanol production from corn stover via (acetone-butanol-ethanol) ABE fermentation under vacuum was studied in this work. The reactor operating strategies considered were batch, fedbatch and continuous. The integrated reactor and vacuum separation process includes energy integration by a heat-pump system as well. A mathematical model describing the dynamics of the integrated reactors and the network of compressors and heat exchangers has been developed. The dynamic process models were used to select the optimum production strategy using economic optimisation where a methodology to determine the effect of scheduling of parallel reactor operation on the sizing of the heat-pump system was developed. The results suggest that the optimal operating mode for the integrated reaction system was fed-batch.Although the fed-batch process had the highest economic potential (37.8 MM USD), the compressor work for batch process operation (36.6 MM USD) was the lowest (1.8 MJ/kg ABE, 18% lower than that of fed-batch). Continuous process operation demonstrated the lowest economic potential (23.8 MM USD) and the highest compression work (2.87 MJ/kg ABE). The energy requirements of the purification system, a double-effect distillation process, were found to be between 3.45 and 4.14 MJ/kg ABE.

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Section: (B))supporting

confidence: 93%

Butanol production via vacuum fermentation: An economic evaluation of operating strategies

Díaz

Stosch

Willis

2019

Chemical Engineering Science

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“…Nevertheless, problems of ISPR strategies using conventional separation methods also exist. For example, when combining gas stripping with ISPR, the energy demand of the whole process will increase due to the duty required at the condenser for product recovery from the gas stream 97 . As mentioned previously, ISPR with IL‐based LLE has the potential to improve the productivity, as well as lower the energy consumption in downstream product removal processes.…”

Section: Applied Il‐based Ispr In Abe Fermentationmentioning

confidence: 99%

Ionic liquid‐based in situ product removal design exemplified for an acetone–butanol–ethanol fermentation

Chen

Garg

Luo

et al. 2021

Biotechnology Progress

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Selecting an appropriate separation technique is essential for the application of in situ product removal (ISPR) technology in biological processes. In this work, a three‐stage systematic design method is proposed as a guide to integrate ionic liquid (IL)‐based separation techniques into ISPR. This design method combines the selection of a suitable ISPR processing scheme, the optimal design of an IL‐based liquid–liquid extraction (LLE) system followed by process simulation and evaluation. As a proof of concept, results for a conventional acetone–butanol–ethanol fermentation are presented (40,000 ton/year butanol production). In this application, ILs tetradecyl(trihexyl)phosphonium tetracyanoborate ([TDPh][TCB]) and tetraoctylammonium 2‐methyl‐1‐naphthoate ([TOA] [MNaph]) are identified as the optimal solvents from computer‐aided IL design (CAILD) method and reported experimental data, respectively. The dynamic simulation results for the fermentation process show that, the productivity of IL‐based in situ (fed‐batch) process and in situ (batch) process is around 2.7 and 1.8fold that of base case. Additionally, the IL‐based in situ (fed‐batch) process and in situ (batch) process also have significant energy savings (79.6% and 77.6%) when compared to the base case.

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“…Through filtration and separation stages, this section provides two main outlet streams (solid phase and liquid phase) that follow to hydrolysis and fermentation stages, respectively. It is worth mentioning that this study set the modified non-random two-liquid (NRTL) model and the Redlich-Kwong (RK) equation to model and estimate substance property and equilibria for this topology [24].…”

Section: Topology 1: Butanol Production From Cassava Wastementioning

confidence: 99%

Computer-Aided Environmental Assessment Applied for Estimation of Ecological Impacts Derived from Topological Pathways Based on Lignocellulosic Biomass Transformation

2020

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The growing awareness to include sustainability goals in the chemical process design has been making palpable since many governments and research institutions have made many efforts precisely to progress new ways to transform available resources into valuable chemicals. In this sense, this work is presenting a computer-aided evaluation based on environmental impact assessment and comparison of technical parameters for estimating the potential effects of two biorefinery designs. The first process involved a multiproduct production of acetone, butanol, and ethanol from cassava waste, while the second biorefinery comprised of succinic acid and bioethanol production from a mixture of cassava waste and banana rachis. These residues are highly available in the North Colombia region due to the agroindustrial activities of that zone. The developed environmental analysis employed the waste reduction algorithm (WAR) for estimating impact generation and output rates considering atmospheric and toxicological categories. Otherwise, process simulation of biorefineries showed production of 546.3 kg/h of acetone, 280.0 kg/h of ethanol, and 1305 kg/h of butanol for topology 1, while topology 2 delivered a synthesis of 13,865.7 kg/h of acetic acid and 2277.9 kg/h of ethanol. Data generated from process simulation allowed performing a technical comparison between evaluated biorefineries, showing a higher performance of evaluated indicators for topology 2. These evaluated variables included resource energy efficiency, and production yield, among others. The environmental analysis provided relevant information, indicating that topology 2 is a better alternative from an ecological viewpoint since this design would emit substances with lower effects than topology 1.

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Simulation and energy analysis of the ABE fermentation integrated with gas stripping

Cited by 19 publications

References 30 publications

Butanol production via vacuum fermentation: An economic evaluation of operating strategies

Butanol production via vacuum fermentation: An economic evaluation of operating strategies

Ionic liquid‐based in situ product removal design exemplified for an acetone–butanol–ethanol fermentation

Computer-Aided Environmental Assessment Applied for Estimation of Ecological Impacts Derived from Topological Pathways Based on Lignocellulosic Biomass Transformation

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