- Type of paper
: Paper in book
Title: Impurity Poisoning of Ni-Catalyst Pllets
- Authors:
- Rušić, Davor (202886)
Publisher: Elsevier Science B.V.
Year: 1994
Pages: from 623 to 627
Number of references: 9
Language: engleski
Summary: The problem of decrease in catalyst activity due an
irreversibile adsorption of poison was solved numerically using a single
point colocation approximation.The numerical results are compared with
experimental data obtanied by measuring concentration changes due to
thiophene poisoning of Ni-Al2O3 in benzene hydrogenation.
Keywords: Decrease in catalyst activity, single point collocation approximation.
- Type of paper
: Paper in journal
Title: Solid - Liquid hass Transfer in Agitated Vessels
- Authors:
- Mitrović - Kessler, Edita (32075)
- Žanetić, Ratimir (71273)
Journal: Chemical and Biochemical Enginering
Number: 12
ISSN: 0352-9568
Volume: 5
Year: 1991
Pages: from 11 to 18
Number of references: 12
Language: engleski
Summary: Mass transfer in system copper-feric chloride solution
benzoic
acid-water, benzoic acid + Zn foweder-water, has been examined
in order to determine: - the active and the inactive regions in
agitated vessels; - the value of the Sc-number exponent for mass
transfer equations in agitated vessel; - the effect of impeller
type and the blade angle on the mass transfer in agitated vessel.
The solutions given may be applied in design and construction
of apparatuses in which heat and mass transfer occur.
Keywords: Mass transfer, agitated vessel, design, construction
- Type of paper
: Paper in journal
Title: The Influence of Mixing on the Stirene Polymerization
Product
- Authors:
- Mitrović - Kessler, Edita (32075)
Journal: Chemical and Biochemical Engineering
Number: 1
ISSN: 0352-9568
Volume: 6
Year: 1992
Pages: from 1 to 6
Number of references: 11
Language: engleski
Summary: This paper examines the influence of geometrical and
hydrodynamic
properties of the system on the product of the styrenepearl-polymerization.
The experiments were carried out atdifferent agitator speeds, and different
impellers were used.
The product in the shape of finely separated grains was examinedto
determine the shape and the size distribution of particles.
The values obtained and the size distribution of particles.
The values obtained were analyzed in relation to thehidrodynamics and the
geometry applied. The dependences obtained
have been presented graphically and described by appropriate
analytical expressions.
Keywords: Styrene polymeryzation, particle size distribution, mixing
- Type of paper
: Paper in journal
Title: Heat Transfer in Agitated Vessels with Liquid
- Authors:
- Mitrović - Kessler, Edita (32075)
- Žanetić, Ratimir (71273)
Journal: Chemical and Biochemical Engineering,Quarterly
Number: 2
ISSN: 0352-9568
Volume: 7
Year: 1993
Pages: from 65 to 72
Number of references: 140
Language: engleski
Summary: In order to improve heat transfer in processes which
involvemixing and in those which do not, heat transfer has been examinedin
agitated vessels: - with a jacket and buffles; - with acoil; - with a
U-bend. In experiments without mixing the
quantity of heat transferred varied at different
In cases involving mixing, empirical heat transfer equations werederived
for geometry examined, corelating geometrical anddynamical-thermal
properties of the system.
Keywords: Heat transfer, agitated vessel, jacketed vessel, coil, U-bend
- Type of paper
: Paper in journal
Title: Application of Transformed LN-function in Definition of
Influence of Mixing on Styrene Polymerizaton
- Authors:
- Kuzmanić, Nenad (120556)
- Mitrović - Kessler, Edita (32075)
- Žanetić, Ratimir (71273)
Journal: Chemical and Biochemical Engineering, Quarterly
Number: 3
ISSN: 0352-9568
Volume: 7
Year: 1993
Pages: from 133 to 137
Number of references: 9
Language: engleski
Summary: The aim of this research was to examine the possibility of
using
the LN analytical distribution function to define dispersion
properties of styrene pearl-polymeryzation product, and then
use the specific parameters of that function to determine the
effect of mixing on the very process. Experimental data, shown
by means of a LN-function, which provides further information oneffect of
hydrodinamic and geometrical properties of the system.
Keywords: Styrene polimeryzation product, LN-function, particle size distribution
- Type of paper
: Paper in journal
Title: Suspension of Solid Particles in an Agitated Vessel. I The
Characteristic of Complete Suspension
- Authors:
- Vojnović, Ivo (52845)
- Mitrović - Kessler, Edita (32075)
Journal: Chemical and Biochemical Engineering,Quarterly
Number: 3
ISSN: 0352-9568
Volume: 8
Year: 1994
Pages: from 119 to 124
Number of references: 7
Language: engleski
Summary: Solid particles of different shapes, dimensions,specific
mass and
mass portions were suspended in a liquid. Bimodal solid particles
systems were also examined. The most appropriate conditions for
reaching the state of complete suspension were defined and empirie equation
for this state were derived:
Re= k*ArČa*OmegaČb.
Keywords: complete suspension, solid particles, monomodal particles, bimodal particles, agitated vessel
- Type of paper
: Paper in journal
Title: Suspension of Solid Particles in an Agitated Vessel.II
Effects of Geometry, Physical Characteristics, and Solid Concentration
- Authors:
- Mitrović - Kessler, Edita (32075)
- Žanetić, Ratimir (71273)
Journal: Chemical and Biochemical Engineering,Quarterly
Number: 4
ISSN: 0352-9568
Volume: 8
Year: 1994
Pages: from 157 to 161
Number of references: 7
Language: engleski
Summary: Solid particles of different shapes and mass portions,but
of the some dimensions and specific mass were specific mass were suspended
in liquids of different densites and viscosities.The obtained empirical
equations describe the relations: a) input power-difference in density
between suspended particles and liquids used to suspend then, P=k1*(dp)Ča
b) constant Z-Rec, Z=k2*RecČb c) constant Z-mean mass fraction of solid
particles
Z=k3*omegaČc
Keywords: input power,dissipation energy, mass portion of solid particles
- Type of paper
: Paper in proceedings
Title: Wall sampling of suspension brom stirred vessels
- Authors:
- Kuzmanić, Nenad (120556)
Proceedings title: 3th Int. Symp. Multiphase Hydrodynamics in Industrial Plants
Language: engleski
Place: Pisa, Italia
Year: 1992
Pages: from 437 to 452
Meeting: 3th Confferenci Multiphase Hydrodynamics in Industrial Plants Castelnuovo di Garfagnano
Held: from 11/10/92 to 11/11/92
Summary: The problem of continuos wall sampling of suspension from
stired
vessels has been studied suspensions of different dimensions and
concentrations in water have been used. The characteristies ofthe flow
patterns were determined using a modified Pitot tube.
The depedence of the outlet concentration on sampling velocity,
probe shape and location has been investigated. The sampling
efficiency has been expressed as the ratio of the measured solids
concentration to the average concentration in the vessel. Large
differences have been observed between the differentprobes,especially with
bimodal suspension.
Keywords: Wall sampling, sampling efficiency, suspension of glass beads, outlet concentration, sampling velocity, probe shape
- Type of paper
: Paper in proceedings
Title: Isokinetic and non-isokinetic probe Sampling from stirred
vessels
- Authors:
- Kuzmanić, Nenad (120556)
Proceedings title: The First Conference on Chemical and Process Engineering
Language: engleski
Place: Firenze, Italija
Year: 1993
Pages: from 853 to 857
Meeting: The First Conference on Chemical and Process Engineerinng, Firenze
Held: from 05/13/93 to 05/15/93
Summary: The aim of this work was to investigate the influence of
probeshape and wall thickness on sampling efficiency, "isokinetic"
and "non-isocinetic" conditions. The suspension was continuonsly
removed throught a probe inserted into the vessel wall atdifferent axial
position, and using different samplingvelocities. Monomondial suspensions
of glass beads in -water
were tested.
Experimental data indicate that the sampling efficiency of aprobe strongly
depedens on the probe shape and wall-thickness,
and also on the sampling velocity at U/Uo < 1.
Keywords: Isokinetic sampling, nonisocinetic sampling, sampling efficiency, sampling probe
- Type of paper
: Paper in proceedings
Title: Continuous Sampling of a Slurry a Stirred Vessel: Analysis
of the Sampling Efficiency and Affecting Paramters.
- Authors:
- Barresi, A.A.
- Kuzmanić, Nenad (120556)
- Baldi, G.
Proceedings title: Icheme symposium series no. 136
Language: engleski
Place: Warwickshire, United Kingdom
Year: 1994
Meeting: Eighth European Conference on Mixing
Held: from 09/21/94 to 09/23/94
Summary: Monomodal a bimodal suspension of glass beads in water
stired by a pitched blade turbine have been studied.The depedence of the
sampling efficiency on particle size,stirrer velocity,axial sampling
position and withdrawal velocity has been investigated.
Keywords: Sampling efficiency,sampling of a slurry,probe,stirred vessel.
- Type of paper
: Paper in proceedings
Title: Kemijsko inženjerstvo u razvoju tehnologija mediteranskih
zemalja
- Authors:
- Žanetić, Ratimir (71273)
- Mitrović - Kessler, Edita (32075)
Proceedings title: Mediteranski koncept razvojne strategije Hrvatske. I. Znnstveni skup-Radovi
Language: hrvatski
Place: Split
Year: 1994
Pages: from 573 to 577
Meeting: Mediteranski koncept razvojne strategije Hrvatske
Held: from 12/08/93 to 12/09/93
Summary: This paper suggest the bes way of defining the technology
development pattern and of supporting it with the development of
chemical engineering especially regarding the choice,designing and
development of production facilities compatible with the technologies in
the Mediterranean countries.
Keywords: Cemical engineering,Development of tehnologies,Mediterranean concept.
- Type of paper
: Summary in proceedings
Title: Suspension of Solid Particles in Agitated
- Authors:
- Mitrović - Kessler, Edita (32075)
- Kuzmanić, Nenad (120556)
- Žanetić, Ratimir (71273)
Language: hrvatski
Place: Zagreb
Year: 1991
Pages: from 272 to 272
Held: from 03/14/91 to 03/15/91
Summary: C AT ili kompatibilnom računalu.
Keywords: Agitated vessel, propeller impeller, turbine impeller, complete suspension
- Type of paper
: Summary in proceedings
Title: The influence of Mixing on the Styrene Polymerization
Product
- Authors:
- Kuzmanić, Nenad (120556)
- Mitrović - Kessler, Edita (32075)
- Žanetić, Ratimir (71273)
Proceedings title: 3. jugoslavenski simpozijum o kemijskom inženjerstvu -izvodi radova
Language: hrvatski
Year: 1991
Pages: from 178 to 178
Held: from 01/16/91 to 01/18/91
Summary: The aim of this work was to examine the effect of mixing on
the
product of styrene polymerization in suspension. The product in
the shape of finely separated grains, was examined to
termine the particle size distribution and the specific surface.
In this work has been used simply relation brom literature
RRSB and LN analitical distribution funcions. The resultsobtained by
different metods has been comparated in order to find
the optimal metod for above characterizations.
Keywords: Styrene polymerization, particle size distribution, specific surface, analitical distribution functions
- Type of paper
: Summary in proceedings
Title: Aplication of transformed LN- function in order to define
the effect of mixing influence on the styrene polymerization product
- Authors:
- Kuzmanić, Nenad (120556)
- Mitrović - Kessler, Edita (32075)
- Žanetić, Ratimir (71273)
Proceedings title: 12. sastanak kemičara Hrvatske - Sinopsisi Abstracts
Language: hrvatski
Place: Zagreb
Year: 1991
Pages: from 271 to 271
Meeting: 12. sastanak kemičara Hrvatske
Held: from 02/11/91 to 02/13/91
Summary: The paper examines the effect of mixing on the product of
styrenepolymerization in a suspension. Experiments have been carried
out in a Rushton-sized mixing vessel with a turbine impeller,
at different impeller speeds, N = 200...500 rpm, with constant
reactant rations. The dispersed product has been analyzed asregards
particle size distribution and specific surface by means
of an approximate LN-distribution function.
Keywords: Styrene polymerization, transformed LN-function, dispersed product, specific surface
- Type of paper
: Summary in proceedings
Title: Suspension of Solid Particles in Agitated Vessel
- Authors:
- Mitrović - Kessler, Edita (32075)
- Žanetić, Ratimir (71273)
Proceedings title: 13. skup hrvatskih kemičara -Sinopsis Abstract
Language: hrvatski
Place: Zagreb
Year: 1993
Pages: from 311 to 311
Meeting: 13 skup hrvatskih kemičara, Zagreb
Held: from 02/08/93 to 02/08/93
Summary: Particles of the same material but different shapes and
massportions, of the same dimensions and densities, have been
suspended in different density liquids. The relation between
the power input to the impeller and the difference in density
between a perticle and the fluid user for suspending is linear:
P = k*(
The constant Z has benn calculated in relation to the modified
Re-number. That relation is linear as well: Z = k*Re(m)Ča.
Keywords: Power input to the impeller, difference in density
- Type of paper
: Summary in proceedings
Title: Influence of probe shape on slurry withdraval stirred
vessel
- Authors:
- Kuzmanić, Nenad (120556)
Proceedings title: 13. skup hrvatskih kemičara - Simpozij Abstract
Language: hrvatski
Place: Zagreb
Year: 1993
Pages: from 313 to 313
Meeting: 13 skup hrvatskih kemičara, Zagreb
Held: from 02/08/93 to 02/10/93
Summary: In this work the problem of continuos wall sampling
ofsuspensions from stirred has been studied, using suspensions of
class beads of different dimensions and concentrations intap-water. In
order to find the optimal conditions for theprocess of the wall sampling,
diferent shape, diameters and wall
thickhenes of probe and different withdrawal velocities have been
used.
Keywords: Probe shape, continuous wall sampling, suspension of glass beads, isocinetic sampling
- Type of paper
: Summary in proceedings
Title: The Design of Protection by Coating in Shipbuilding
- Authors:
- Knezović, Nikša (185373)
Proceedings title: 13. skup hrvatskih kemičara - Sinopsis Abstracts
Language: hrvatski
Year: 1993
Pages: from 354 to 355
Meeting: 13 skup hrvatskih kemičara, Zagreb
Held: from 02/08/93 to 02/10/93
Summary: The paper presents an inproved methodology for design a
systemfor anti- corrosion protection by coatings. Attention has beenpaid to
evaluation of some parameters needed in calculation
(data on coatings, layering, operating conditions, complexity of
the ship space structure, recommended standards, conditions ofuse, prices).
The design process was developed as an expertsystem with knowledge and data
bases. The program was writen inTurbo-Pascal and adjusted for PC AT
compatibles.
Keywords: Coatings, shipbuilding, anti-corrosion protection
- Type of paper
: Summary in proceedings
Title: The Mediterranen Conception of Croatian Development
Strategy
- Authors:
- Žanetić, Ratimir (71273)
- Mitrović - Kessler, Edita (32075)
Proceedings title: Mediteranski koncept razvojne strategije Hrvatske
Language: hrvatski
Place: Split
Year: 1993
Pages: from 31 to 31
Meeting: Znanstveni skup Mediteranski koncept razvojne strategije Hrvatske, Split
Held: from 12/08/93 to 12/09/93
Summary: The paper described the best way for determining
technologydevelopment directions and thier suport by development ofchemical
engineering (in choosing, designing and building optimum
production capacities). There need to be people able to evaluate
processes, lead them successfully, and develop them further.
Therefore education and research and development should beinvestided in,
and the development of existing and new production
technologies and special purpose technologies planned wisely.
Keywords: Chemical engineering, development, Mediterran
- Type of paper
: Summary in proceedings
Title: Wall sampling of suspensions from slurry handling
equipment
- Authors:
- Kuzmanić, Nenad (120556)
- Mitrović - Kessler, Edita (32075)
- Žanetić, Ratimir (71273)
- Mitrović - Kessler, Edita (32075)
Language: hrvatski
Place: Zagreb
Year: 1993
Pages: from 26 to 27
Meeting: Od uzorka do podataka i informacije, Opatija
Held: from 10/20/93 to 10/23/93
Summary: The problem of on adequate sampling slurry handling
equipment ispresent in many branches of chemical industry. The
samplingefficiency from slurry system strongly depedens on the
phisicalproperties of the solid-liquid systems, probe characteristics,
sampling velocity and special for mixing vessels, on the axialposition of
sampling devices.
Keywords: wall sampling, sampling probe, sampling efficiency, sampling velocity
- Type of paper
: Summary in proceedings
Title: Sspension of Solid Particles in Agitated Wessel
- Authors:
- Mitrović - Kessler, Edita (32075)
- Rušić, Davor (202886)
- Stipišić, Renato (900475)
Proceedings title: XIV skup hrvatskih kemičara
Language: hrvatski
Place: Zagreb
Year: 1995
Pages: from 325 to 332
Meeting: 14.skup hrvatskih kemičara
Held: from 02/06/95 to 02/08/95
Summary: Particless of quarz sand of varying diameters and mass
portions were suspended.In order to define the suspension regime ,values
were determined for the modified Froud number for particle Fr(M,p), and for
the ratio of the particle diameter to the wessel
diameter dp/dr.Three ranges were identified: a)of setting range where
Fr(M,p)=const.,b)off-bottom suspension range where
Fr(M,p)-dp/dr c)transition range where the some apply as for awidance of
setting range.
Keywords: Modified Froud number for the particle, avoidance of settling range, off-bottom suspension range, transition range
- Type of paper
: Summary in proceedings
Title: Heat Transfer from a Cylynder to the Surounding
- Authors:
- Mitrović - Kessler, Edita (32075)
- Rušić, Davor (202886)
- Stipišić, Renato (900475)
Proceedings title: XIV skup hrvatskih kemičara
Language: hrvatski
Place: Zagreb
Year: 1995
Pages: from 326 to 326
Meeting: 14.skup hrvatskih kemičara
Held: from 02/06/95 to 02/08/95
Summary: Cooling of a steel cylinder can be expressed by means
differential equation whose solution represent the model of temperature
distribution in time and by diameter.
The model was tested in two experiments. The model is determined
by Biot numbers and thermal diffusity.
Keywords: Heat transfer, cooling, Biot number, thermal difusity
- Type of paper
: Summary in proceedings
Title: Experimental and Theoretical study of Ni deactivation
- Authors:
- Rušić, Davor (202886)
Proceedings title: XIV skup hrvatskih kemičara
Language: hrvatski
Place: Zagreb
Year: 1995
Pages: from 327 to 327
Meeting: 14.skup hrvatskih kemičara
Held: from 02/06/95 to 02/08/95
Summary: In a study of kinetics of benzene hydration to cyclohexane
and deactivation and of diffusion characteristic of a Ni pellet,
the efficiency of the catalyst relative to time was simulated.
The overall efficiency factor calculated theoreticall was
compared to that determined experimentally.
Keywords: Kinetics,benzene hidration,deactivation.
- Type of paper
: M.A.
Title: DESIGN OF ANTI - CORROSION COATINGS IN SHIPBUILDING
Faculty: Tehnološki u Zagrebu
Date of defense: 06/10/91
Language: hrvatski
Number of pages: 187
Summary: The study improves the procedure which defines the
relationbetween theoretical and practical values for quantitative
properties of a coating. Experimental data have been used to
determine coefficients for individual factors affectingdeviations of the
coating from an ideal one. An expert system hasbeen developed which enables
evaluation of data which cannot be
determined directly and a technicalli and economically optimal
design has been developed.
Keywords: Coating protection, corrosion, shipbuilding
- Type of paper
: Other
Title: Suspension of Solid Particles in an Agitated Vessel (I)
- Authors:
- Mitrović - Kessler, Edita (32075)
- Žanetić, Ratimir (71273)
Type of work: Članak u časopisu
Other: Članak je predan za publiciranje časopisu: Chemical
Biochemical
Engineering, Quarterly (biti će publiciran u 1994)
- Type of paper
: Other
Title: Suspension of Solid Particles in an Agitated Vessel (II)
- Authors:
- Mitrović - Kessler, Edita (32075)
- Žanetić, Ratimir (71273)
Type of work: Članak u časopisu
Other: Članak predan za publiciranje časopisu: Chemical Biochemical
Engineering, Quarterly (biti će publiciran u 1994)
- Type of paper
: Other
Title: Wall sampling of suspensions from slurry handling
equipment
- Authors:
- Mitrović - Kessler, Edita (32075)
- Žanetić, Ratimir (71273)
Type of work: Rad u zborniku
Other: Rad u zborniku predan uredništvu CROSS-a.
- Type of paper
: Other
Title: The Mediterranean conception of Croatian development
strategy
- Authors:
- Mitrović - Kessler, Edita (32075)
- Žanetić, Ratimir (71273)
Type of work: Pregled u zborniku
Other: Pregled u zborniku predan organizatoru znanstvenog
skupaMediteranski koncept razvojne strategije Hrvatske
/Ekonomskifakultet-Split/
