dilute-acid pre-treatment
Helically agitated mixing in dry dilute acid pretreatment enhances the bioconversion of corn stover into ethanol
... dry dilute acid pretreatment operation revealed that well mixing of the majority of lignocellulose solids with minimum steam input in the pretreatment reactor was the major ...the dilute acid ...
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Impacts of pre treatment technologies and co products on greenhouse gas emissions and energy use of lignocellulosic ethanol production
... The aim of this paper is to understand the life cycle energy use and greenhouse gas GHG emissions implications of alternative pre-treatment technologies dilute acid hydrolysis, ammonia f[r] ...
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Recent updates on different methods of pretreatment of lignocellulosic feedstocks: a review
... to acid treatment, alkali pretreatment meth- ods are in general performed at ambient temperature and ...of dilute NaOH was observed on softwoods with lignin content greater than 26% (Kumar and Wyman ...
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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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Extraction of eucalyptus pulp nanofibers by enzymatic hydrolysis with and without acid pre treatment
... after acid treatment was also noted by Tang et ...enzyme treatment for an intermediate time was more suitable for removal of part of amorphous material constituent of eucalyptus pulp fiber than ...
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Optimization of the dilute maleic acid pretreatment of wheat straw
... Effect of pretreatment conditions on heating costs Heating lignocellulose means heating costs and heating wheat straw to 170°C costs more than to 130°C. Heating costs that are taken into account are those for the straw ...
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Dilute Acid Hydrolysis of Cowpea Hulls: A Kinetic Study
... of acid hydrolysis: dilute and concentrated acid ...times dilute acid hydrolysis is carried out as a pre-treatment method for enzyme ...hydrolysis. Dilute ...
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PRODUCTION OF ETHANOL THROUGH SEPARATE SACCHARIFICATION AND FERMENTATION VIA OPTIMIZATION OF PRETREATMENT CONDITIONS
... Acid dichromate solution (0.1 M Cr2O7 2- in 5 M H2SO4) was prepared by dissolving 7.5 g of potassium dichromate in dilute sulfuric acid and the final volume was adjusted to 250 ml with deionized ...
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STATISTICAL OPTIMIZATION AND MODELING OF DILUTE ACID HYDROLYSIS OF AQUATIC MACROPHYTES.
... The coefficient of determination (R2) of the model was 58.25 which mean that 58.25% of the variability among the results was explained by the model and 41.75% was as a result of chance. Values of ‘‘Prob. > F’’ less ...
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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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The Effects of Salt and Acid Concentration on the Dilute Solution Viscometry of Chitosan.
... Sodium alginates are strong polyelectrolytes. Rinaudo et al. [18] considered viscosity of Na-alginates in dilute and semi-dilute solutions. The M:G ratio for all samples was around 1.3:1. Molecular weight ...
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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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nef reaction review pdf
... The mercuric chloride salt of nitroethane was best hydrolyzed with cold dilute hydrochloric acid instead of nitric or sulfuric acid; this hydrolysis was accompanied by the vigorous evolu[r] ...
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EFFECT OF PRE AND POST TREATMENT OF ASCORBIC ACID ON .WHEAT AND MAIZE SEEDS EXPOSED TO GAMMA RADIATION
... Pre-irradiation treatment of tr.e seeds with ascorbic acid showed relatively increased germination, seedling height and chlorophyll content compared to that of AA treatment [r] ...
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Factors influencing formation and the <italic>in vitro</italic> drug release from pellets containing chitosan
... 1982a), the developm ent of a sustained release preparation for w ater soluble drugs (Sawayanagi et al. 1982b), the form ulation of directly com pressed tablets containing chitosan (Sawayanagi et al. 1982c), the ...
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Enhancing Growth and Increasing Yield of Peas (Pissum sativum L.) by Foliar Application of Ascorbic Acid and Cobalt Chloride
... 110 The three cultivars varied in their number of green seeds/pod as Master B pods contained more seeds (8.5 seeds/pod in both seasons) than the other two cultivars but seeds of Palmoral and Jaguar were heavier than ...
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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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Preparation of a Carbon Based Solid Acid with High Acid Density via a Novel Method
... As reusability of the solid acid was so important, recycling reactions were designed. When the first run was over, the used 0.02 g catalyst was collected and washed with ethanol for several times. The regenerated ...
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“Effect of Acetic Acid as Pre-Plant Herbicide on Arachis hypogaea L. Germination” by N. Uma Maheswari, T. Thangaratham, India.
... inhibition. Pre-panting treatment generally does not inhibit the growth of ...acetic acid applied as pre- planting in wheat could control broadleaf ...acetic acid as pre-planting ...
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The kinetic of dilute-acid hydrolysis of agrowaste for the production of reducing sugar
... Concentrated acid hydrolysis process is accomplished by adding 70 - 77 %w/w sulfuric acid to the oven-dried biomass with a moisture content of 10 ...the acid will be diluted to 30 to 40 ...an ...
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