Kinetics of Bio‐Reactions

Villadsen, John

doi:10.1002/9783527697441.ch07

Cited by 2 publications

(2 citation statements)

References 25 publications

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“…Glucose, CO 2 , and nutrients (NH 3 , CaCl 2 , MgCl 2 , K 2 HPO 4 , NaCl, and yeast extract) were the main raw materials for the fermentation process. The following stoichiometry in Equation ( 1) was considered for bio-based SA production [19].…”

Section: Base-case Process Designmentioning

confidence: 99%

Techno-Economic Analysis of Succinic Acid Production from Sugar-Rich Wastewater

et al. 2023

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Succinic acid (SA) is a valuable platform chemical that can be converted into biodegradable plastics, resins, solvents, etc. The emerging biological routes for SA production are gaining more attention because they exploit the natural abilities of bacteria to fixate carbon dioxide (CO2). On the other hand, an inexpensive organic carbon source that can fulfill the energetic requirements of the microbial strain is also a significant challenge for industrial SA production. The current work presents a holistic techno-economic analysis of SA production using sugar-rich residual streams and biogas as raw materials. Simulation results showed that by establishing an integrated process, high SA production can be simultaneously achieved with biogas upgrading. The CO2 provided from biogas and carbohydrates, which are provided from organic by-products is converted into two products: biomethane (CH4 > 95%, a clean biofuel), and SA. The mass and energy balances and techno-economic indicators were simulated and calculated using SuperPro Designer®. The total capital investment and the total production cost for a facility producing 1000 tSA/year were estimated to be EUR 5,211,000 and EUR 2,339,000 per year, respectively. The total revenue was calculated to be EUR 2,811,000 per year, while the revenue due to biomethane produced, namely, 198,150 Nm3 corresponded to EUR 205,284 per year. The return on investment, payback period, and internal rate of return of the project were found to be 11.68%, 8.56 years, and 11.11%, respectively.

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Section: Base-case Process Designmentioning

confidence: 99%

Techno-Economic Analysis of Succinic Acid Production from Sugar-Rich Wastewater

et al. 2023

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“…The logistic equation has been widely employed to model both batch and continuous cell growth kinetics in biooxidation and other biological systems [38][39][40][41][42][43][44][45][46][47][48][49][50][51]. Here, we used the extended Prout-Tompkins model [52][53][54][55] as a generalized logistic equation as follows for the startup kinetics.…”

Section: Kinetic Modelingmentioning

confidence: 99%

Kinetics of different bioreactor systems with Acidithiobacillus ferrooxidans for ferrous iron oxidation

Yavari

Ebrahimi

Aghazadeh

et al. 2019

Reac Kinet Mech Cat

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The relative performance of two biofilm-based airlift reactors using different kinds of packing materials and one fixed bed biofilm reactor with a homemade packing material of high specific area (~ 1000 m 2 /m 3) was addressed. The bioreactors operated under ferrous iron loading rates in the range of 8-120 mol Fe(II)/m 3 h. Acidithiobacillus ferrooxidans cells immobilized in the three bioreactors afforded the reactions for an extended period of 120 days of continuous operation at the dilution rates of 0.2, 0.4, 0.7, 1 and 1.2 h −1. The maximum ferrous iron oxidation rates achieved in this study at a hydraulic residence time of 1.2 h were about 91, 68 and 51 mol Fe(II)/ m 3 h for the fixed bed, airlift1, and airlft2 bioreactors. The performance data from the fixed-bed bioreactor offered a higher potential for ferrous iron oxidation because of fast biofilm development, the formation of a thick biofilm, and lower sensitivity to shear, which enhanced the startup time of the bioreactor and the higher reactor productivity. Proper kinetic models were also presented for both the startup period and the steady-state process.

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Kinetics of Bio‐Reactions

Cited by 2 publications

References 25 publications

Techno-Economic Analysis of Succinic Acid Production from Sugar-Rich Wastewater

Techno-Economic Analysis of Succinic Acid Production from Sugar-Rich Wastewater

Kinetics of different bioreactor systems with Acidithiobacillus ferrooxidans for ferrous iron oxidation

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