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Falling Film Evaporator Energy Balance

1.9 Falling film evaporators for black liquor concentration 10 1.10 Transport phenomena in falling films 11 1.11 Disaertation organization 12 ... 3.4.1 Masa balance 82 3.4.2 Energy balance 84 3.5 In-line mixer 85 3.6 Splitter 86 3.7 Numerical aolution 86 3.7.1 Initialization 87 ... Falling film evaporation is to add the feed liquid from the ...

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4 and a sensor APR 260 (0.1–1100 mbar, Pfeiffer Vacuum). Prior to H 2 adsorption, 800 mg of catalyst were in-situ reduced in pure H 2 at 700C for 2 h, flushed in He for 30 minutes and then cooled down to 30C. A first H2 adsorption isotherm was measured at 30C, then the sample was isothermally evacuated for 2 h and a second isotherm was measured to quantify the reversibly

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After removal of the toluene on a rotary evaporator, 149 mg (0.85 mmol, 85%) of the product were obtained. ... (20:1) as an eluent, and the isolated yield was then calculated based on the feeding of the aryl halide. The isolated corresponding products were characterized by 1H NMR and 13C NMR. 70%: ... (1.4 eq; 0.28 mol), 38.29 g of 4-bromo ...

Carbon-free H2 production from ammonia triggered at room ...

Apr 28, 2017 The feed gas, with a 4:1 molar ratio of NH 3 to O 2 (equivalent to that for the ammonia ... The temperature of the inlet was higher than that of the outlet of the catalyst bed during the ... (Tanaka Kikinzoku Kogyo) in tetrahydrofuran and stirred overnight; the solvent was then removed using a rotary evaporator, and the catalyst powders were ...

A simultaneous multiresidue analysis for 203 pesticides in ...

Aug 02, 2018 A multiresidue analysis method for the simultaneous determination of 203 pesticides in soybean was developed using solid-phase extraction (SPE) and gas chromatography–tandem mass spectrometry (GC–MS/MS). Scheduled multiple reaction monitoring by GC–MS/MS was optimized in electron ionization mode. The target pesticides …

US Patent for Hydrogenation of hydrocarbons ... - Justia

Aug 11, 1999 A process for hydrogenating long chain hydrocarbons includes continuously feeding a feedstock having long chain hydrocarbons into a slurry bed including a slurry of catalyst particles in a slurrying liquid. The slurry bed is contained in a reaction zone and the feedstock enters the reaction zone at a low level. A hydrogenation component is fed continuously into …

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Aug 16, 2012 Dry under vacuum on a rotary evaporator (60 C, 1 h). The expected yield is 3 g. ... by bubbling Argon through it for ∼ 30 min from a Schlenk line inlet. ii. …

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Chemistry. Chemistry questions and answers. Methane reacts with chlorine to produce methyl chloride and hydrogen chloride. Once formed, the methyl chloride may undergo further chlorination to form methylene chloride, chloroform, and carbon tetrachloride. A methyl chloride production process consists of a reactor, a condenser, a distillation ...

Process Intensification of Enzymatic Fatty ... - Europe PMC

Dec 11, 2017 The hexane and 1-butanol in the organic phase were removed using a rotary evaporator (60 C, 300 mbar), and the ... The volumetric production rate of the experiment using 150 gL aq –1 of enzyme calculated using eq 4 was 0.25 kg FABEm –3 ... the enzyme activity and the protein content of the feed inlet stream to the stirred tank ...

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Feb 23, 2019 In this study, the effects of spray drying parameters as feed soluble solid content, inlet air temperature and outlet air temperature on spray drying of soapwort (Gypsophila arrostii) extract have been examined. Central composite design was used with 15–30 Bx, 110–160 C and 50–80 C for feed soluble solid content, inlet air temperature and outlet air temperature, …

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International Journal of Pharmaceutics 299 (2005) 115–126 Technical aspects of the production of dried extract of Maytenus ilicifolia leaves by jet spouted bed drying Daniel S. Cordeiro, Wanderley P. Oliveira ∗ Universidade de S˜ao Paulo, Faculdade de Ciˆencias Farmacˆeuticas de Ribeir˜ao Preto, Via do Cafe s/no , 14040-903, Ribeir˜ao Preto, SP, Brazil Received 6 August …

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Jul 24, 2018 Rhamnolipid yield from glucose feed was 0.05 g g−1, when up to 2 g L−1 glucose pulse feeding was applied. After solvent evaporation, a product purity of 96% was obtained. The results indicate that the integrated adsorption method can be efficient for simultaneous production and recovery of rhamnolipid biosurfactants from microbial ...

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Cytokinin Metabolism in Phaseolus vulgaris L. - JSTOR

removed by distillation in a rotary evaporator at 30 C. The aqueous extracts were made up to c. 200 cm3 with distilled water, pH adjusted to 3-5 (acetic acid), and frozen. After thawing, the suspensions were centrifuged at 15 000 g for 1 h to remove lipid material. The supernatant was

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Sep 14, 2017 Extraction of grape skin anthocyanins. Milled grape skin of Prokupac was extracted with 70%v/v ethanol/water solutions during the period of 2 h. The samples were extracted for two hours at ambient temperature by shaking (200 rpm) with the application of ultrasound in the ultrasonic bath Elmasonic S15H (Elma, Germany) at 95 W and the frequency …

Effects of different carrier materials on physicochemical ...

Sep 14, 2017 Introduction. Grape, as one of the most commonly cultured fruit worldwide, generates a significant amount of by-products during processing. Those by-products are mainly grape skin, grape pomace and seeds (about 20% of the processed grapes weight) (Llobera and Caellas 2007; Maier et al. 2009).Recently, various technologies have been developed in …

Extraction of Polysaccharide from Dendrobium nobile Lindl ...

Subcritical water extraction (SWE) uses hot compressed water as an effective solvent for both polar and nonpolar compounds and has been developed as an environmentally benign extraction technology for natural materials. Polysaccharides as one of the main ingredients in Dendrobium plants showed obvious biological activity. Thus, SWE of polysaccharides obtained from …

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Effects of extractives on degradation characteristics and ...

The ethanol solutions containing VOCs from different gas-washing bottles in the same collection stage (e.g. temperature-elevating stage from 100 to 200 C, or temperature-holding stage at 220 C) were mixed together and concentrated in a rotary evaporator at 55 C to 4 to 6 mL. Approximately 1.2 to 1.5 mL of the concentrated solutions were ...

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ADAPTERS FRITTED INLET FEEDS FOR ROTARY EVAPORATORS

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