1 edition of Kinetic modeling of the saccharification of prehydrolyzed southern red oak found in the catalog.
Kinetic modeling of the saccharification of prehydrolyzed southern red oak
|Other titles||Cellulose: structure, modification, and hydrolysis|
|Statement||Anthony H. Conner ... [et al.]|
|Contributions||Conner, Anthony H, United States. Forest Service|
|The Physical Object|
|Pagination||p. 281-296 :|
|Number of Pages||296|
A kinetic model and simulation of starch saccharification and simultaneous ethanol fermentation by amyloglucosidase and Zymomonas mobilis C.-G. Lee, C.H. Kim and S.K. Rhee, Taejon, Korea Abstract. A mathematical model is described for the simultaneous saccharification and ethanol fermentation (SSF) of sago starch using. Abstract: A mathematical model is described for the simultaneous saccharification and ethanol fermentation (SSF) of sago starch using amyloglucosidase (AMG) and Zymomonas mobilis. By introducing the degree of polymerization (DP) of oligosaccharides produced from sago starch treated with α -amylase, a series of Michaelis-Menten equations were obtained.
A Kinetic Analysis of Selected Reactions. In this section we review the application of kinetics to several simple chemical reactions, focusing on how we can use the integrated form of the rate law to determine reaction orders. In addition, we consider how we can determine the rate law for a more complex system. Kinetic Data Collection. The kinetic experi-ments were conducted in a 3/ 4 in. stainless steel reactor equipped with a thermowell to insert the thermocouple into the center of the bed. The catalytic activity was measured at three temperatures, , , and K, at a pressure of psig and at a H 2/aromatic molar ratio of
Teisser model gave marginally better fit than other models tested as it obtained the highest correlation coefficient (). Based on Leudking-Piret model, it could be concluded that ethanol batch fermentation is a non-growth associated process. Key words: Kinetic parameters, simulation, cell growth, ethanol, Saccharomyces cerevisiae. A kinetic model capable of predicting reaction rate and MWD for the slurry polymerization of propylene using the catalyst system rac-Et(Ind) 2 ZrCl 2 /MAO was reported by Bel-leli et al Based on a polymeric multigrain model, they considered the existence of two types of active sites with.
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Southern red oak lignocellulose is obtained from experimental data (Table ) by a least-squares procedure: (8) This equation differs from Eq. (7) only in the pre-exponential factor.
Comparison of Eqs. (7) and (8) shows that at the same temperature and acidity southern red oak. Get this from a library. Kinetic modeling of the saccharification of prehydrolyzed southern red oak. [Anthony H Conner; United States.
Forest Service.;]. southern red oak is greater than that for prehydrolyzed Douglas-fir. comparing the hydrolysis rates of cellulose in various woods.
The differences between the calculated and experimental values. Regular paper Kinetic modeling of simultaneous saccharification and fermentation of corn starch for ethanol production* Wojciech Białas*, Adrian Czerniak and Daria Szymanowska-Powałowska.
Kinetic modeling and dynamic analysis of the simultaneous saccharification and fermentation (SSF) of cellulose to ethanol was carried out in this study to determine the key reaction kinetics parameters and product inhibition features of the by: 7.
A multireaction kinetic model was developed for closed‐system enzymatic hydrolysis of lignocellulosic biomass such as corn stover. Three hydrolysis reactions were modeled, two heterogeneous reactions for cellulose breakdown to cellobiose and glucose and one homogeneous reaction for hydrolyzing cellobiose to.
Kinetic modeling of the saccharification of prehydrolyzed southern red oak [microform] / Anthony H. Con Kinetic model for the dilute sulfuric acid saccharification of lignocellulose [microform] /.
Based on the parameters for saccharification and fermentation, we calculated the theoretical values for SSF using our simulation model. Fig. 9, Fig. 10 show the theoretical cellulose, cellobiose, glucose, ethanol, yeast, and adsorbed enzyme (i = 1, 2) concentrations and the theoretical radius of cellulose during SSF at 30 °C and 40 °C.
Mathematical modeling of flow and kinetics in a reactor for dilute-acid hydrolysis of cellulose particles. Applied Biochemistry and Biotechnology(2), DOI: /BF B GIRISUTA, L JANSSEN, H HEERES. Green ChemicalsA Kinetic Study on the Conversion of Glucose to Levulinic Acid. A mathematical model is described for the simultaneous saccharification and ethanol fermentation (SSF) of sago starch using amyloglucosidase (AMG) and Zymomonas mobilis.
By introducing the degree of polymerization (DP) of oligosaccharides produced from sago starch treated with α-amylase, a series of Michaelis-Menten equations were obtained.
After determining kinetic parameters from the. A Kinetic Model for Simultaneous Saccharification and Fermentation of Avicel With Saccharomyces cerevisiae.
Josebus M. van Zyl. Corresponding Author. E-mail address. Abstract. Autohydrolysis of Eucalyptus globulus both with and without the addition of 5 g/L formic acid was explored for different liquid-to-solid (L/S) ratios at ºC for min.
The L/S ratio has an impact on the dissolution of wood components during prehydrolysis. The extraction yield of wood components other than lignin decreased with increasing L/S ratio, while lignin removal.
Kinetic Modeling of Hydrocarbon Processing and the Effect of Catalyst Deactivation by Coke Formation. Catalysis Reviews: Vol. 50, No. 1, pp. Throughout history different types of wood have served many purposes.
The tough, strong, and durable white oak, for example, was a well-proven raw material for ships, bridges, cooperage, barn timbers, farm implements, railroad ties, fence posts, flooring, paneling, and other products.
KINETIC MODELING OF HARDWOOD PREHYDROLYSIS. PART III. WATER AND DILUTE ACETIC ACID PREHYDROLYSIS OF SOUTHERN RED OAK Anthony H. Connerand Linda F. Lorenz Research Chemist and Chemist Forest Products Laboratory, Madison, WI ’ (Received February ) ABSTRACT The hemicelluloses in wood are more readily hydrolyzed than is cellulose.
For kinetic modeling diverse state-of-the-art software tools (e.g. Presto Kinetics, Aspen Custom Modeler, Comsol Multiphyics) are in use. Fig. 1: Kinetic modeling as part of chemical reactor design.
Example: Reactant A reacts via two intermediate products B and C to the final product D. Possible reaction networks might look like as follows. Kinetic model analysis of dilute sulfuric acid-catalyzed hemicellulose hydrolysis in sweet sorghum bagasse for xylose production.
Industrial Crops and Products38, DOI: /p Eun-kyung Kang, Byung Min Lee, Hyun Ah Hwang, Ji-Hyun Kim. However, it is difficult to compare values directly with other studies because of the use of different raw materials, kinetic models, and experimental methods.
Fig. Effect of reaction temperature on k 1 /k 2 and k 3 /k 4. Based on the kinetic models, the yields of pentose and hexose were associated with k 1 /k 2 and k 3 /k 4, respectively.
branches. The kinetic model is plugged into an adiabatic multi-bed trickle flow reactor model. The model contains 33 feedstock and temperature independent parameters which have been estimated from the experimental data.
The model has been used to study the effect of the operating conditions on the yield and composition of various products. The kinetics of water and of dilute (5%) acetic acid prehydrolysis of southern red oak wood over the temperature range of to C were investigated.
Kinetic parameters were determined that permitted modeling not only of xylan removal from the wood but also of the occurrence of xylan oligosaccharides, more» free xylose, furfural, and.
In discussions on chemical kinetics, the terms mechanism or model fre quently appear and are used to mean an assumed reaction network or a plausi ble sequence of steps for a given reaction. Since the levels of detail in investi gating reaction networks, sequences and steps are so different, the words.Kinetic modeling of simultaneous saccharification and fermentation for ethanol production using steam-exploded wood with glucose- and cellobiose-fermenting yeast, Brettanomyces custersii.
Journal of Microbiology and Biotechnology. Oct 8;11(4)Reaction Kinetics and the Development and Operation of Catalytic Processes is a trendsetter. The Keynote Lectures have been authored by top scientists and cover a broad range of topics like fundamental aspects of surface chemistry, in particular dynamics and spillover, the modeling of reaction mechanisms, with special focus on the importance of transient experimentation and the application of.