liquid solid reactions in a stirred reactor

... the data would be proprietary in nature and very limited data are available in the open literature There are several reasons that make the tubular design more advantageous than the planar one ... conditions are specified at all external boundaries of the computational domain as well as boundaries for various mass and scalar equations inside the computational domain 2.3.1 Inlets The inlet values ... place It can be seen that for a planar shape, a high fraction of the current is generated at the catalyst layer that lies beneath the air inlet area, leading to under-utilization of the catalyst...

Ngày tải lên: 05/09/2013, 14:58

... catalyst layer The temperature peak appears in the cathode catalyst layer near the inlet area, implying that major heat generation takes place in the region For an optimum fuel cell performance, ... Boundary conditions are specified at all external boundaries of the computational domain as well as boundaries for various mass and scalar equations inside the computational domain 2.3.1 Inlets ... conditions are applied at the land area (interface between the bipolar plates and the gas diffusion layers) Neumann boundary conditions are applied at the interface between the gas channels and the gas...

Ngày tải lên: 09/09/2015, 10:17

... Mazaletskaya, N I Sheludchenko and L N Shishkina S Ya Sokolov, N .A Tyukavkina, V.K Kolkhir, Yu .A Kolesnik, A. P Arzamastsev, N.G Glazova, V .A Zyuzin, A. I Baginskaya, V .A Babkin, L .A Ostroukhova: ... Advantages and disadvantages of these methods are discussed in detail in review [7] The analysis of the available literature data shows that the parameters characterizing the antioxidant activity ... AMERICAN BAR ASSOCIATION AND A COMMITTEE OF PUBLISHERS LIBRARY OF CONGRESS CATALOGING -IN- PUBLICATION DATA Chemical reactions in gas, liquid, and solid phases : synthesis, properties, and application...

Ngày tải lên: 28/03/2014, 10:20

... SVI gradually decreased due to aerobic granulation, as shown in Figs and As sludge settling ability increased, surface loading and aeration rates were gradually increased, and finally set at 1.8 ... known as an important factor influencing the sludge selection in an SBR (McSwain et al., 200 4a) Generally, surface loading rate (equal to liquid linear velocity at a sludge settling zone) and aeration ... aeration rates Formation of Aerobic Granular Sludge by Controlling Surface Loading and Aeration Rates Surface loading and aeration rates were initially set at 1.2 m3/m2/d and 0.30 L/min, respectively,...

Ngày tải lên: 05/09/2013, 10:15

... feed rate at 2.5 t/hr, the raw meal feeding was again increased by t/hr (i.e a total raw meal feeding rate of 221 t/hr) A slight decrease in free lime could be observed, indicating that a reduction ... determination of proximate analysis, heating value, bulk density and particle size distribution The proximate analysis was carried out using a Las Navas Automatic Multiple Sample Thermogravimetric ... Sri Lanka and Research and Development Institute, Sri Lanka (2006-2007) She has work experience as chemical and process engineer in Hammer International (Pvt) Ltd, Sri Lanka (2006) and Linea Intimo...

Ngày tải lên: 05/09/2013, 15:28

... with the peak corresponding to Si Žb TEM image revealing that the SiNWs have a smooth morphology and average diameter of ca 40 nm The SAED pattern shown in the inset reveals a characteristic ... point of view, it is speculated that a- SiNWs may have potential applications such as for portable rechargeable batteries of high capacity which is closely related to the surface effects In fact, ... it was recently revealed that the lithium battery using silicon nanowires as material for electrodes showed a capacity as high as times that of the ordinary material w13,14x By optimizing dopants,...

Ngày tải lên: 16/03/2014, 15:05

... ects In fact, it was recently revealed that the lithium battery using SiNWs as electrode materials showed a capacity as high as times than that of the ordinary one [12] Fig (a) Low and (b) magniÿed ... scrapped from the substrate The SAED pattern shown in inset reveals characteristic ring pattern, showing that the nanowires are completely amorphous (a- SiNWs) Parts of a- SiNWs on the edge of chaps ... peak corresponding to Si, (b) TEM image revealing that the SiNWs have smooth morphology and average diameter around 40 nm The SAED pattern shown in inset reveals characteristic di usive ring pattern,...

Ngày tải lên: 16/03/2014, 15:14

... the measured concentration of each analyte in each replicate, the mean concentration of each analyte in all replicates, and mean accuracy (as mean percentage of true value) for each analyte, and ... Triphenylphosphate Target Analytes Acenaphthylene Alachlor Aldrin Ametryn Anthracene Aroclor 1016 Aroclor 1221 Aroclor 1232 Aroclor 1242 Aroclor 1248 Aroclor 125 4a Aroclor 1260 Atratonc Atrazine Benz [a] anthracene ... 117 Target Analytes Acenaphthylene Alachlor Aldrin Ametryn Anthracene Aroclor 1016 Aroclor 1221 Aroclor 1232 Aroclor 1242 Aroclor 1248 Aroclor 1254 Aroclor 126 0a Atratond Atrazine Benz [a] anthracene...

Ngày tải lên: 22/03/2014, 14:20

... containing the liquid TTIP precursor was placed in an oil bath and was maintained at a temperature of 98°C The precursor delivery tube was maintained at a temperature of 210°C by a heating tape ... concentration in the titania lattice as an interstitial impurity Dopants with an oxidation state of 3+ or lower when placed in the titania lattice points create a charge-compensating anion vacancy [36] and ... TiO2 nanoparticles Appl Phys Lett 2003, 83:4143-4145 Bhattacharyya K, Varma S, Tripathi AK, Bharadwaj SR, Tyagi AK: Effect of vanadia doping and its oxidation state on the photocatalytic activity...

Ngày tải lên: 21/06/2014, 02:20

... complication of the esophagus, paranasal sinus, or nose wings accompanying insertion of the nasogastric tube was observed Compliance of the large-bore nasogastric tube was favorable, and he did ... gut mass and disaccharide activity Gastroenterol 1974, 67(5):975-982 Kanie J, Suzuki Y, Iguchi A, Akatsu H, Yamamoto T, Shimokata H: Prevention of gastroesophageal reflux using an application ... for publication of this case report and any Nakayama et al Journal of Medical Case Reports 2010, 4:24 http://www.jmedicalcasereports.com/content/4/1/24 Page of accompanying images A copy of the...

Ngày tải lên: 11/08/2014, 14:21

... Declaration I hereby declare that this thesis is my original work and it has been written by me in its entirety, under the supervision of Prof Stephan Jaenicke, (in the laboratory catalysis lab in ... S5-04-04 and S5-02-02), Chemistry Department, National University of Singapore, between August 2008 and December 2012 I have duly acknowledged all the sources of information which have been used in ... thesis has also not been submitted for any degree in any university previously The content of the thesis has been partly published in: H H Liu, G K Chuah, S Jaenicke*, N-alkylation of amines by alcohols...

Ngày tải lên: 08/09/2015, 19:36

... In 1973, Burnett and Hughes found that butane can be converted to lower and higher alkanes in contact with a combination of a dehydrogenation catalyst, platinum on alumina, and an olefin metathesis ... pathway available within the amine activation manifold Transamination, also known as amine exchange, allows for the formation of highly substituted amines without the need for any of the activating ... dehydrogenative activation of alkanes is particularly challenging because an initial C−H activation is required in an unreactive substrate to associate with the metal species in the catalytic cycle...

Ngày tải lên: 09/09/2015, 10:14

... B Rakshe, V Ramaswamy, and A V Ramaswamy, J Catal 188 (1999) 252 25 N K Mal and A V Ramaswamy, Chem Commun (1997) 425 26 M A Camblor, M Costantini, A Corma, L Gilbert, P Esteve, A Martinez, and ... medium in the presence of TEA cation at near neutral pH They obtained a very wide range of Si/Al ratios, ranging from Si/Al=6.5 to almost pure silica materials Al incorporation in the material has ... This reaction was found not only to be catalyzed by Al-beta, but also by Al-free Ti-beta Van der Waal et al [73] reported the catalytic activity of Alfree Ti-beta in the same reaction Again, a very...

Ngày tải lên: 16/09/2015, 17:12

... Fischer-Tropsch liquid greenhouse gas gasification reactor higher heating value heat recovery and steam generate heating value of fuel, heat flow (J) mine to tank storage capacity (hours) solar hybrid coal-to -liquid ... material are maintained constant to achieve steady operation of the gasification reactor and downstream process The warm and hot bed material storage units are used to accommodate the transience ... rate of bed material to the gasification reactor (Qnet,sol,full)ann(peak) is the value of Qnet,sol,full when the solar insolation reaches the annually peak value To evaluate the annually averaged...

Ngày tải lên: 01/08/2016, 09:30

... 3-Tetradecene Benzene, 1,3-bis(1,1-dimethylethyl)Pentanedioic acid, 2,4-dimethyl-, dimethyl ester Alcohol Alcohol Aldehyde Alkane Alkane Alkane Alkane Alkane Alkane Alkane Alkane Alkane Alkane Alkene ... range of 50–350 g/mol A standard solution, M-61 0A, containing a mixture of the 16 priority PAHs (AccuStandard, New Haven, USA) (including Acenaphthene, Anthracene, Benzo (a) anthracene, Fluoranthene, ... by ash leachate is ever increasing The ash contaminants can accumulate inside plants and animals, which can harm or kill them Up to date the effect of emissions from the gasification of solid wastes...

Ngày tải lên: 02/08/2016, 09:34

... Table are likely somewhat higher than what they are in reality In theory, a leakage as small as 3% of the steam added to the steam reactor could explain such high values of gCO2 i n t e r n a ... this means that steam was always added in excess Once the flow of reducing gas was removed from the fuel reactor generation of H2 in the steam reactor ceased, which indicates that FeO did not accumulate ... and water traps Hence all measurements were made on dry gas CO2, CO and CH4 were measured using infrared analysers while O2 was measured with paramagnetic sensors The gas from the air/steam reactor...

Ngày tải lên: 25/11/2016, 21:52

... doing something, the other threads can handle the user inputs and perform the tasks For example, if a user wants to cancel bringing in a large amount of data from a web page, a single threaded ... running at a higher priority can immediately react and cancel the operation When Not to Use Threads… Using multiple threads in an application does not guarantee any kind of a performance gain ... constantly interacting with the program, are independent activities The performance of an application can be improved by creating a separate thread for performing each of these activities rather...

Ngày tải lên: 12/09/2012, 14:40

Ngày tải lên: 04/10/2012, 10:24

Ngày tải lên: 04/10/2012, 10:25