Dilute Acid
Impact of dual temperature profile in dilute acid hydrolysis of spruce for ethanol production
... Background: The two-step dilute acid hydrolysis (DAH) of softwood is costly in energy demands and capital costs. However, it has the advantage that hydrolysis and subsequent removal of hemicellulose-derived ...
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A novel population balance model for the dilute acid hydrolysis of hemicellulose
... acetic acid is the weaker acid, it suggests that equilibrium does not lie in favour of strong dissociation of the acetic ...of dilute acid ...
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Dilute Acid Hydrolysis of Cowpea Hulls: A Kinetic Study
... two-stage dilute acid process is preferred to one-stage dilute acid hydrolysis because: a higher sugar yield is expected from separate hydrolysis of hemicellulose and cellulose, energy ...
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Synergetic effect of dilute acid and alkali treatments on fractional application of rice straw
... both acid and alkali pre- treatments for the enzymatic hydrolysis of biomass have been intensively studied [17–20], very little concern is given to the fractional applications of the main compo- nents, cellulose, ...
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STATISTICAL OPTIMIZATION AND MODELING OF DILUTE ACID HYDROLYSIS OF AQUATIC MACROPHYTES.
... the dilute acid hydrolysis of various lignocellulosic ...during acid hydrolysis with the four process parameters i.e. acid concentration, soaking time, hydrolysis temperature and treatment ...
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Effect of Dilute Acid Pretreatment of Vegetable Waste on Sugar Production and Inhibitor Formation
... of dilute acid pretreatment of vegetable waste on sugar production and inhibitor formation using sulfuric acid ...sulfuric acid, were evaluated to obtain the highest reducing sugar ...
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An Assessment of the Dilute Acid Pretreatment of Coastal Bermudagrass for Bioethanol Production
... Several ANNs with differing numbers of hidden layer neurons and one standard second-order MLR were developed for relative comparison as non-kinetic empirical model options for describing dilute acid ...
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Insight into the evolution of the proton concentration during autohydrolysis and dilute-acid hydrolysis of hemicellulose
... The literature on the kinetics of the removal of hemi- cellulose is substantial. The modeling approach was built upon the approach used for dilute-acid hydrolysis of cel- lulose [10]. For hemicellulose, ...
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The kinetic of dilute-acid hydrolysis of agrowaste for the production of reducing sugar
... product. Dilute acid hydrolysis is the simplest method compared with others chemical or even the physical ...methods. Acid recovery is not needed after the treatment process and the hemicellulose can ...
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The impacts of deacetylation prior to dilute acid pretreatment on the bioethanol process
... a dilute acid pretreatment/enzymatic saccharification/fer- mentation bioethanol process, as shown in Figure ...The dilute alkali extraction step before acid pretreat- ment removes ...
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Development of an estimation model for the evaluation of the energy requirement of dilute acid pretreatments of biomass
... (NREL) dilute acid process ...sulphuric acid mass fraction of ...sulphuric acid content per dry g of biomass of 18 mg at 158 C and 557 kPa ...
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Oligomer saccharide reduction during dilute acid pretreatment co-catalyzed with Lewis acids on corn stover biomass
... the dilute-acid ...the dilute-acid pretreatment reactor [11] ; whereas, this study involves pretreatments from 140°C to ...with dilute acid but without Lewis acids since it is ...
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The dilute acid hydrolysis of Tasmanian woods in percolation apparatus
... Table IV indioates the effect of time on the brcakdown of reducing sugars which have been formed by hydrolysis but it is to be noted that there is not a proprotional increase in yield of[r] ...
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Dilute Sulfuric Acid Pretreatment of Genetically-Engineered Switchgrass for Improved Sugar Production.
... biochemical conversion due to its complex and recalcitrant structure, especially the presence of lignin barrier. Without structural modification, the conversion of switchgrass to liquid fuel would be much less promising ...
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PRODUCTION OF ETHANOL THROUGH SEPARATE SACCHARIFICATION AND FERMENTATION VIA OPTIMIZATION OF PRETREATMENT CONDITIONS
... Dilute acid hydrolysis has been successfully developed for pretreatment of lignocellulosic ...The dilute sulfuric acid pretreatment can achieve high reaction rates and significantly improve ...
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Deacetylation Followed by Fractionation of Yellow Poplar Sawdust for the Production of Toxicity-Reduced Hemicellulosic Sugar for Ethanol Fermentation
... impacts of deacetylation prior to dilute acid pretreatment on the bioethanol process. Optimization conditions for oxalic acid pretreatment of deacetylated yellow poplar 362[r] ...
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The Hydrided Palladium Electrode22-27
... \Vhen a catalytically active palladium wire is immersed in efficiently stirred hydrogen- saturated dilute acid solutions, the time dependent changes of electrode pote[r] ...
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To study the herbalism of thyme leaves
... with dilute aqueous alkali solution (= 5% w/v in ...with dilute acid, when thymol gets separated as an oily layer floating on the surface that may be recovered either by extraction with ether or by ...
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Understanding the Chemistry of Microbiologically Induced Corrosion (MIC) of Concrete in Sanitary Sewerage Environment: A Review Study
... the acid production) into the concrete was already proceeded by the destruction of the ...The acid destruction will be much more rapid than the penetration and much slower solid state reaction of the ...
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INVITRO ANTIPSORIATIC AND INHIBITORY EFFECTS OF ETHYL ACETATE AND METHANOL FRACTION OF CASSIA SOPHERA AND MALLOTUS PHILIPPINENSIS ON INFLAMMATORY CYTOKINES
... About 10 mg of hexane, chloroform, ethyl acetate and methanolic fractions of plant extracts were boiled with 70% alcohol for 3 minutes and filtered. To the filtrate 5 ml of water and 0.5 ml of a strong solution of lead ...
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