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Water Reactors

Under sufficient pressure to permit a Hquid phase at 55—56°C, the acetaldehyde monoperoxyacetate decomposes nearly quantitatively into anhydride and water in the presence of copper. Anhydride hydrolysis is unavoidable, however, because of the presence of water. When the product is removed as a vapor, an equiUbrium concentration of anhydride higher than that of acetic acid remains in the reactor. Water is normally quite low. Air entrains the acetic anhydride and water as soon as they form. [Pg.76]

BWRs operate at ca 7 MPa (70 bar) and 288°C. Some of the coolant passing through the core is converted into steam which is separated from the water with equipment inside the reactor vessel (see Eig. 2). The steam goes to the turbine generator while the water is recirculated back to the bottom of the core. A side stream is continuously purified using deminerali2ers and filters to control the water quality of the reactor water. EuU-flow condensate deminerali2ers... [Pg.194]

Many instances of intergranular stress corrosion cracking (IGSCC) of stainless steel and nickel-based alloys have occurred in the reactor water systems of BWRs. IGSCC, first observed in the recirculation piping systems (21) and later in reactor vessel internal components, has been observed primarily in the weld heat-affected zone of Type 304 stainless steel. [Pg.195]

Fig. 6. Impurity flow paths of BWR radioactive contamination (24). RWCU = reactor water cleanup system. Fig. 6. Impurity flow paths of BWR radioactive contamination (24). RWCU = reactor water cleanup system.
As an example, the battery-limits capital cost can be estimated for the production of 10,000 t/yr of ethylene (qv) from ethanol (11). Seven processing blocks, ie, vaporizer, reactor, water quench, compressor, dryer, distillation, and energy recovery, can be identified. The highest temperature is 350°C (reactor), and the highest pressure is about 1.7 MPa (17 atm) (compressor, two towers). If a materials-pressure factor, + of 1.03 is assumed, then for N = 7 0 = 0.87 1/0 = 1 64 and f =0 K = 6.3. This gives the 1981 cost as 4.4 X 10 . The 1991 battery-Hmits investment can be obtained, by updating with the CE Plant Cost Index, as 5.3 x 10 . ... [Pg.443]

Where condenser in-leakage develops in nuclear reactor boilers, calcium hideout may occur in the reactor water, implying that some leakage of Ca and Mg may have occurred from the condensate polishers. There also may be some sodium or chloride leakage from the polishers (under good conditions, the polisher effluent usually contains below 0.1 ppb Na). [Pg.382]

Clearly, this problem is serious because the minimum polisher effluent quality is determined by the maximum impurity concentration in reactor water, and current industry guidelines limit chloride and sulfate to below 5 ppb in reactor water. [Pg.382]

The sulfate level in the reactor water is a good indicator of sodium contamination, and it may be observed by an increase in the pick-up rate of sulfate, from perhaps 0.2 to 0.4 ppb to 3 to 4 ppb. [Pg.382]

The used raw materials were TiCU, oxygen, Ar and NaOH. The reaction apparatus consisted of gas purifiers, reactant preheaters, reactor, water cooler, separator and an off-gas treatment unit. The reactor was a 27 mm in ID. (32 mm in O.D.), 1430 mm in length quartz tube that was heated by a horizontal electrical furnace. A quartz rod and a ceramic rod, 6 mm... [Pg.417]

Cassidy DP, RL Irvine (1997) Biological treatment of a soil contaminated with diesel fuel using periodically operated slurry and solid phase reactors. Water Sci Technol 35(1) 185-192. [Pg.643]

Boopathy, R. and Manning, J., A laboratory study of the bioremediation of 2,4,6-trinitrotoluene-contaminated soil using aerobic anaerobic soil slurry reactor, Water Environ. Res., 70, 80-86, 1998. [Pg.586]

Zoutberg, G.R. and Frankin, R., Anaerobic treatment of chemical and brewery waste water with a new type of anaerobic reactor the Biobed EGSB reactor, Water Sci. Technol., 34, 375-381, 1996. [Pg.777]

Eiroa, M., Kennes, C., and Veiga, M.C., Formaldehyde and urea removal in a denitrifying granular sludge blanket reactor, Water Res., 38, 3495-3502, 2004. [Pg.778]

Other companies (e.g., Hoechst) have developed a slightly different process in which the water content is low in order to save CO feedstock. In the absence of water it turned out that the catalyst precipitates. Clearly, at low water concentrations the reduction of rhodium(III) back to rhodium(I) is much slower, but the formation of the trivalent rhodium species is reduced in the first place, because the HI content decreases with the water concentration. The water content is kept low by adding part of the methanol in the form of methyl acetate. Indeed, the shift reaction is now suppressed. Stabilization of the rhodium species and lowering of the HI content can be achieved by the addition of iodide salts. High reaction rates and low catalyst usage can be achieved at low reactor water concentration by the introduction of tertiary phosphine oxide additives.8 The kinetics of the title reaction with respect to [MeOH] change if H20 is used as a solvent instead of AcOH.9 Kinetic data for the Rh-catalyzed carbonylation of methanol have been critically analyzed. The discrepancy between the reaction rate constants is due to ignoring the effect of vapor-liquid equilibrium of the iodide promoter.10... [Pg.144]

Shaw CB, Carliell CM, Wheatley AD (2002) Anaerobic/aerobic treatment of coloured textile effluents using sequencing batch reactors. Water Res 36(8) 1993-2001... [Pg.69]

Lourenfo ND, Novais JM, Pinheiro HM (2000) Reactive textile dye colour removal in a sequencing batch reactor. Water Sci Technol 42 321-328... [Pg.70]

Kalyuzhnyi S, Sklyar V (2000) Biomineralisation of azo dyes and their breakdown products in anaerobic-aerobic hybrid and UASB reactors. Water Sci Technol 41(12) 23-30... [Pg.72]

Talarposhti AM, Donnelly T, Anderson GK (2001) Colour removal from a simulated dye wastewater using a two phase anaerobic packed bed reactor. Water Res 35 425—432... [Pg.98]

The initial experimental design is shown in Figure 10-14. Water and acetic anhydride are gravity-fed from reservoirs and through a set of rotameters. The water is mixed with the acetic anhydride just before it enters the reactor. Water is also circulated by a centrifugal pump from the temperature bath through coils in the reactor vessel. This maintains the reactor temperature at a fixed value. A temperature controller in the water bath maintains the temperature to within 1°F of the desired temperature. [Pg.460]

Startup following maintenance produced process upset in reactor, water found in process materials, reflux line blocked resulted in overheating in reactor. [Pg.79]

Like most oxidations, this one is exothermic. The temperature of the oxidation is controlled by the heat exchanger tubes built into the reactor. Water runs through the tubes, absorbs the heat of reaction, and turns to steam and exits the top. This keeps the reaction temperature at 500—550°F under slight pressure. The residence time of the feed in the reactor is only about one second. Yields, the amount of the ethylene that ends up as EO, approach 90%. [Pg.148]

Beltrame, P., Beltrame, P.E., and Cartini, P. Influence of feed concentration on the kinetics of biodegradation of phenol in a continuous stirred reactor, Water Res., 18(4) 403-407,1984. [Pg.1631]

Benkli, YE Can, MF Turan, M elik, MS. Modification of organo-zeolite surface for the removal of reactive azo dyes in fixed-bed reactors. Water Research, 2005 39, 487-493. [Pg.69]

Young, J.C. Dhab, M.F. The effect of media design on the performance of fixed bed anaerobic reactors. Water Sci. Technol. 1983, 15, 369. [Pg.234]

Helbe, A. Schlayer, W. Liechti, P.-A. Jenny, R. Mobius, C.H. Advanced effluent treatment in the pulp and paper industries with a combined process of ozonation and fixed bed biofilm reactors. Water Sci. Technol. 1999, 40 (11-12), 345-350. [Pg.495]


See other pages where Water Reactors is mentioned: [Pg.122]    [Pg.486]    [Pg.573]    [Pg.713]    [Pg.924]    [Pg.927]    [Pg.195]    [Pg.195]    [Pg.50]    [Pg.863]    [Pg.805]    [Pg.880]    [Pg.463]    [Pg.223]    [Pg.777]    [Pg.921]    [Pg.190]    [Pg.261]    [Pg.12]    [Pg.77]   
See also in sourсe #XX -- [ Pg.2416 ]

See also in sourсe #XX -- [ Pg.49 , Pg.56 , Pg.66 ]




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Absorption of Radiation in Photo-CREC Water-II Reactor

Accident Experience with Light Water Reactors

Advanced Light Water Reactors

Advanced Pressurized Water Reactor

Advanced boiling water reactor

Advanced boiling water reactor ABWR)

Advanced heavy water reactor

Application to a Heavy-water-moderated Reactor

BOiling water ReActor experiment

Boiling Water Reactor Observations

Boiling Water Reactors (BWR)

Boiling water nuclear reactor

Boiling water reactor

Boiling water reactor containment

Boiling water reactor core design

Boiling water reactor fuel assembly

Boiling water reactor plant shutdown

Boiling water reactor power operation

Boiling water reactors stability

Boiling water reactors systems

Boiling water reactors systems components

Boiling water reactors systems concentrations

Boiling water reactors systems conditions

Boiling water reactors systems core components

Carrier-free 1od1ne-l33, preparation from neutron-irradiated tellurium in reactor cooling water

Challenges in the Design and Development of Large-Scale Photocatalytic Reactors for Water Purification

Closed Cooling Water System for Reactor Service

Cooling system, light water reactor

Cooling systems water-cooled reactors

ESBWR water reactor

Economic simplified boiling water reactor

Economic simplified boiling water reactor ESBWR)

Embrittlement of reactor pressure vessels (RPVs) in pressurized water reactors (PWRs)

European pressurized water reactors

Experimental Boiling Water Reactor

Experimental boiling water reactor EBWR)

Fuel light-water reactor

Fuels pressurized water reactor

GENERIC SAFETY ISSUES FOR LIGHT WATER REACTOR NUCLEAR POWER PLANTS

Heavy elements water reactors

Heavy water reactors experience with

Heavy water reactors moderator

Heavy water reactors pressure

Heavy water reactors tube-type

Heavy water reactors vessel

Heavy water, 148 reactor

Heavy-water power reactors

High-performance light water reactor

High-performance light water reactor HPLWR)

High-performance light water-cooled reactor

High-performance light water-cooled reactor HPLWR)

Leak detection in water reactors

Light Water Cooled Reactor Systems

Light Water Reactor category

Light enrichment ordinary water reactor

Light water reactors fuel cycles

Light water reactors, investment

Light water-cooled graphite reactors

Light water-cooled graphite-moderated reactor

Light water-cooled reactors

Light-water breeder reactor

Light-water reactor

Light-water reactors integrity

Light-water reactors limits

Light-water reactors pressure-temperature operating

Light-water reactors schematic diagram showing

Membrane Reactors for the Water-Gas Shift Reaction

Microbiological Reactors (Fermenters, Cell Tissue Culture Vessels, and Waste Water Treatment Plants)

Neutron absorbers thermal water reactors

Nuclear boiling water reactors BWRs)

Nuclear energy light water reactors

Nuclear heavy water reactors

Nuclear light water reactors

Nuclear power boiling-water reactor

Nuclear power pressurised-water reactor

Nuclear power reactors heavy water reactor

Nuclear power reactors light water reactor

Nuclear power reactors pressurized water reactor

Nuclear power reactors, heavy-water

Nuclear pressurized water reactors PWRs)

Nuclear reactivity Boiling Water Reactor

Nuclear reactivity Pressurized Water Reactor

Nuclear reactor boiling water reactors

Nuclear reactor light water-cooled reactors

Nuclear reactor pressurized water reactors

Nuclear reactors heavy water reactor

PSA of the CANDU (Heavy Water Power Reactor)

Palladium-based Reactor for Membrane-supported Water-gas Shift

Past Concepts of High Temperature Water and Steam Cooled Reactors

Pervaporation membrane reactor water removal

Phenol Photoconversion in Photo CREC Water-II Reactor

Photo CREC Water-I Reactor

Photo-CREC Water-II reactor

Photo-CREC Water-Ill Reactor

Pressurised Heavy Water Reactors (PHWR)

Pressurised Water Reactors (PWR)

Pressurised heavy water reactor

Pressurised water reactors

Pressurized Water Reactor Observations

Pressurized Water Reactor Subject

Pressurized heavy water reactor PHWR

Pressurized heavy water reactors

Pressurized heavy water-moderated reactor

Pressurized light-water reactor

Pressurized water nuclear reactor

Pressurized water reactor

Pressurized water reactor , general

Pressurized water reactor side components

Pressurized water reactor typical operating conditions

Pressurized water reactors advanced passive reactor

Pressurized water reactors assemblies, features

Pressurized water reactors auxiliary flows

Pressurized water reactors auxiliary systems

Pressurized water reactors component design

Pressurized water reactors construction materials

Pressurized water reactors containment

Pressurized water reactors containment isolation system

Pressurized water reactors containment systems

Pressurized water reactors control

Pressurized water reactors control rods

Pressurized water reactors coolant pumps

Pressurized water reactors design method

Pressurized water reactors energy balance

Pressurized water reactors enrichment

Pressurized water reactors fuel assembly

Pressurized water reactors fuel cycle

Pressurized water reactors fuel handling

Pressurized water reactors generation

Pressurized water reactors high-pressure injection

Pressurized water reactors instrumentation

Pressurized water reactors liquid waste processing

Pressurized water reactors nuclear power plants

Pressurized water reactors operations

Pressurized water reactors passive emergency systems

Pressurized water reactors plant

Pressurized water reactors power plant

Pressurized water reactors power plant primary system

Pressurized water reactors pressurizer

Pressurized water reactors primary loop

Pressurized water reactors primary system

Pressurized water reactors reactor coolant pressurizer

Pressurized water reactors residual heat removal system

Pressurized water reactors secondary loop

Pressurized water reactors solid waste processing

Pressurized water reactors spent fuel

Pressurized water reactors startup

Pressurized water reactors steam generation

Pressurized water reactors steam generator

Pressurized water reactors thermal loads

Radionuclides in the coolants of light water reactors during normal operation

Reactor boiling light water

Reactor light water moderated

Reactor makeup water storage tank

Reactor organic cooled heavy water

Reactor water cleanup (RWCU) return sparger

Reactor water cleanup system

Reactor water conditions

Reactor water recirculation system

Reactors for Water Treatment

Review of High Temperature Water and Steam Cooled Reactor Concepts

Safety aspects light water reactors

Safety in the Light-Water Reactor Fuel Cycle

Shielding, light water reactor

Simulation of Water Gas Shift Reactor An Industrial Case

Steam generating heavy water reactor

Steam generating heavy water reactor SGHWR)

Steam generating systems nuclear boiling water reactors

Steam generating systems nuclear pressurized water reactors

Submarine pressurized water reactor releases

Submarine pressurized water reactors

Supercritical water oxidation reactor

Supercritical water reactor

Supercritical water-cooled reactor

Supercritical water-cooled reactor oxides

Supercritical water-cooled reactor parameters

Supercritical water-cooled reactor pressure vessel concept

Supercritical water-cooled reactor research and development

Supercritical water-cooled reactor safety

Supercritical water-cooled reactor stability

Supercritical water-cooled reactor start

Supercritical water-cooled reactor system concept

Supercritical water-cooled reactor thermal efficiency

Supercritical-Water-Cooled Reactor System

Supercritical-Water-Cooled Reactor System SCWR)

Supercritical-water-cooled reactor development

The Boiling Water Reactor

The Boiling Water Reactor (BWR)

The CANDU Pressure Tube Heavy Water Reactor

The Heavy Water Reactor

The Pressurized Water Reactor

The Pressurized Water Reactor (PWR)

Uranium-aluminum pressurized water reactor fuel

Uranium-dioxide icebreaker pressurized water reactor fuel

Vallecitos boiling water reactor

WATER CHEMISTRY OF LIGHTWATER REACTORS

Water cooled tubular reactor (WCTR

Water dense membrane reactors

Water electrolysis reactors

Water gas shift membrane reactors separation

Water membrane reactors

Water purification kinetic reactors

Water purification reactors

Water- cooled reactors

Water-Gas Shift in Monolithic Reactors

Water-cooled nuclear reactors

Water-cooled reactor, accidents

Water-gas shift in membrane reactors

Water-gas shift membrane reactors

Water-gas shift reactor

Water-moderated reactors

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