Bioethanol Production via Syngas Fermentation of Clostridium Ljungdahlii in a Hollow Fiber Membrane Supported Bioreactor

Anggraini, Irika Devi; Keryanti, Keryanti; Kresnowati, Made Tri Ari Penia; Purwadi, Ronny; Noda, Reiji; Watanabe, Tetsu; Setiadi, Tjandra

doi:10.14716/ijtech.v10i3.2913

Cited by 17 publications

(32 citation statements)

References 17 publications

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“…As a result, cell mass and productivity will be low. To enhance the mass transfer of CO and CO2/H2 from the gass feed into the fermentation broth, a hollow fiber membrane (HMF) module was added before the fermentor as was explained by Keryanti et al [6,7]. HMF has been shown to increase the solubility of gases in solution by increasing the gas-liquid contact area.…”

Section: Methodsmentioning

confidence: 99%

“…The kinetics of the biochemical reaction in the fermentation reaction is built on the model obtained from Benalcázar et al [16] and Gaddy et al [17]. The feed composition and operating conditions are defined based on research by Keryanti et al [7]. The fermentation process was conducted at 37 o C, the optimum temperature for Clostridium ljungdahlii.…”

Section: Methodsmentioning

confidence: 99%

“…Similarly, Keryanti et al [6] showed that the application of a hollow fiber membrane supported bioreactor improved the mass transfer of gases to the fermentation broth [6]. Despite the high gas mass transfer, low CO and CO2/H2 utilizations were observed and implied that the low biomass concentration might be the bottleneck [7].…”

Section: Introductionmentioning

confidence: 96%

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Modeling the synthetic gas fermentation for bioethanol production

Krista

Kresnowati

2022

IOP Conf. Ser.: Earth Environ. Sci.

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The productivity of bioethanol from the synthetic gas anaerobic fermentation by Clostridium jungdahlii is still very low when compared to other bioethanol fermentation methods. The low mass transfer rate of CO, CO2, and H2 gases to the liquid fermentation broth has been considered a major bottleneck in the overall process. Another possible bottleneck is the low concentration of biomass as the real catalyst for bioethanol production. A repeated batch fermentation configuration is proposed to solve the biomass concentration problem. This paper presents the evaluation of the repeated batch configuration for syngas anaerobic fermentation. A model for syngas fermentation has been developed and was used to simulate the effects of repeated batch configurations on bioethanol productivity. The results indicated more than a 50% increase in bioethanol productivity can be achieved by running this fermentation configuration.

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Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

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Modeling the synthetic gas fermentation for bioethanol production

Krista

Kresnowati

2022

IOP Conf. Ser.: Earth Environ. Sci.

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“…Anggraini et al [48] compared the performance of liquid batch syngas fermentation in an STR with and without an HFM integration, concluding that higher ethanol yield, ethanol titer, and ethanol-acetate ratio can be achieved in the former due to an increase in syngas mass transfer rates.…”

Section: Pure Culturesmentioning

confidence: 99%

Membrane bioreactors for syngas permeation and fermentation

Elisiário

Wever

Hecke

et al. 2021

Critical Reviews in Biotechnology

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Syngas fermentation to biofuels and chemicals is an emerging technology in the biobased economy. Mass transfer is usually limiting the syngas fermentation rate, due to the low aqueous solubilities of the gaseous substrates. Membrane bioreactors, as efficient gas-liquid contactors, are a promising configuration for overcoming this gas-to-liquid mass transfer limitation, so that sufficient productivity can be achieved. We summarize the published performances of these reactors. Moreover, we highlight numerous parameters settings that need to be used for the enhancement of membrane bioreactor performance. To facilitate this enhancement, we relate mass transfer and other performance indicators to the type of membrane material, module, and flow configuration. Hollow fiber modules with dense or asymmetric membranes on which biofilm might form seem suitable. A model-based approach is advocated to optimize their performance.

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“…For example, the gas component to be removed is absorbed into the solution when the gas stream contacts with the liquid (Wang and Yu, 2017). The hollow fiber membrane module also provides a large ratio of surface area to volume, which is very beneficial for gas-liquid contact (Anggraini et al, 2019). Additionally, the mass transfer between phases that occurs in membrane modules is driven by differences in the concentration of the inter-phase components and pressure drops.…”

Section: Introductionmentioning

confidence: 99%

The Effect of the Number of Fibers in Hollow Fiber Membrane Modules for NOx Absorption

Kartohardjono¹,

Rizky

Karamah³

et al. 2020

IJTech

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As a type of gas that contributes to air pollution, nitrogen oxide (NOx) has harmful effects on humans and the environment. Among several types of NOx, nitric oxide (NO) and nitrogen dioxide (NO2) are most commonly found in air. The utilization of membranes as reactors is a system that combines chemical reactions with the separation process through membranes to increase the conversion of the reaction. This study investigated the absorption process by utilizing a hollow fiber membrane module (polysulfone) as a bubble reactor with H2O2 (0.5 wt.%) and HNO3 (0.5M) as the absorbent. NOx feed gas was flown into the tube side of the membrane; the shell side was filled with static H2O2 and HNO3 and the shell input and the tube output flow were closed to create gas bubbles. The experimental results showed that the absorption efficiency increased, but the mass transfer coefficient and flux decreased as the number of fibers in the membrane module increased at the same feed gas flow rate. The NOx loading is relatively constant as the amount of fiber in the membrane module increased at the same feed gas flow rate. The experimental results also showed that the mass transfer coefficient, flux, and NOx loading increased with increasing feed gas flow rate, but the absorption efficiency decreased when using the same number of fibers in the membrane module. The maximum NOx absorption efficiency achieved in this study was 94.6% at the feed gas flow rate of 0.1 L/min, using a membrane module with 48 fibers.

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Bioethanol Production via Syngas Fermentation of Clostridium Ljungdahlii in a Hollow Fiber Membrane Supported Bioreactor

Cited by 17 publications

References 17 publications

Modeling the synthetic gas fermentation for bioethanol production

Modeling the synthetic gas fermentation for bioethanol production

Membrane bioreactors for syngas permeation and fermentation

The Effect of the Number of Fibers in Hollow Fiber Membrane Modules for NOx Absorption

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