The reactor session is made up with two cylinders, inside and outside, and the solution to be reacted is fed into the space between the inside and the outside cylinder through the feeding ports.
As soon as the inside cylinder is rotated by the motor, the solution is also starting to move and then forming a strong stream in the direction of rotation.
Simultaneously, two forces of Centrifugal and Coriolis are generated so strongly that the solution in the reactor moves fast for the outside cylinder.
The faster the inside cylinder is rotated, The more unstable the flow comes to be.
By this phenomena, the eddy current flow is created regularly in the shape of the double rings each of which is self-rotated in the opposite direction, along the rotated inside cylinder. It is shaped like a band in the reactor.
This means a Taylor flow in which is called.
0.5
Class
Batch Reactor
LCTR* Reactor
Fluid mixing method
Macro-mixing
Macro-mixing
Mass transfer velocity(m/s)
1
3.3
Mixing intensity(W/kg)
0.8
5.8
Reaction time(h)
16
2
Span(D90-D101/D50)
0.2
0.2
Tap Density(g/mL)
2.1
2.2
A Taylor fluid flow can generate a turbulent flow easily by changing the rotational speed of an inner cylinder, so it is much used to study the stability of a fluid. Rayleigh performed a stability analysis for a nonviscous fluid for the first time.
For a viscous fluid, Taylor reported that a Taylor vortex occurs in a domain larger than the critical Taylor number based on linear theory. The instability condition of a flow can be represented as a Taylor number(Ta), which is defined by a rotational direction Reynolds number and a reactor shape factor(d/ri) as follows:
where is the distance between two cylinders, ri is the radius of the inner cylinder, ωi is the rotational angular speed of the inner cylinder, and v is the dynamic viscosity of the fluid.
Taylor presented that the critical Taylor number(Tac) as d/ri approaches 0 is 41.3, and Kataoka et al. classified the flow characteristics based on a Taylor number when d/ri is 0.62 without axial flow as follows:
LCTR System
LCTR Inner structure and manufacturing option
Inner structure
Characteristics of LCTR-series
LCTR : Batch + Tubular
The development of a ideal chemical reactor functioning the continuous manufacturing system for high purity materials by utilizing fully the advantages of both Batch ( easy to operate, the use of mixer, easy to check in operation) and Tubular ( high purity production, high reproducibility, east to produce nano-materials)
Time reduction
Possible to shorten the reaction time by one third, due to 7 times stronger mixing force and 3 times faster mass transfer velocity
Nguyen-Anh TUAN, Jeong-ki Kang, Jong-Min Kim, Sang-Mok CHANG, Choul-Ho Lee, Woo-sik KIM, "Drowning-out Crystallization of Guanosine 5-Monophosphate(GMP) in Continuous Couette-Taylor Crystallizer" 8th International Conference on Separation Science and Technology, Karuizawa, Japan, (Oct 2-4, 2008)
Continuous production
Possible to produce the volume same as you inject under the continuous production system
Improvement of properties
Possible to be uniformly mixed due to the vortexes regularly created
High-purity materials
Possible to reduce the formation of impurity due to that there is no any dead-zones in the reactor as an ideal fluid flow
LCTR-series (Laminar Continuous Taylor Reactor)
Model
LCTR-Mini-V
Capacity(mL)
20
Max. rotation speed(rpm)
1500
Material
SUS316L & Glass & Teflon
Dimension L/W/H(mm)
274 x 525 x 617
Weight(kg)
40
Model
LCTR-Lab II-V
LCTR-Lab II-H
Capacity(mL)
100
200
Max. rotation speed(rpm)
1500
1500
Material
SUS316L & Glass & Teflon
SUS316L & Glass & Teflon
Dimension L/W/H(mm)
500 x 500 x 1178
1102 x 450 x 574
Weight(kg)
85
120
Model
LCTR-Tera 3100
LCTR-Tera 3300
Capacity(L)
1
1
Max. rotation speed(rpm)
1500
1500
Material
SUS316L & Teflon
SUS316L & Teflon
Dimension L/W/H(mm)
1470 x 700 x 1157
1400 x 700 x 1150
Weight(kg)
450
650
Model
LCTR-Peta
Capacity(L)
10
50
Max. rotation speed(rpm)
1500
1200
Material
SUS316L
SUS316L
Dimension L/W/H(mm)
2330 x 700 x 1220
3400 x 1300 x 1600
Weight(kg)
1200
3000
Model
LCTR-Exa
Capacity(L)
100
500
1000
Max. rotation speed(rpm)
300
250
250
Material
SUS316L
SUS316L
SUS316L
Dimension L/W/H(mm)
5800 x 2300 x 1850
6500 x 2500 x 2000
8500 x 3000 x 2300
Weight(kg)
5000
15000
25000
LCTR Application fields
Product
LiFePo4
Ba(NO3)2
NiSO4
(NiMnCo)(OH)2
KNO3
CoSO4
Li2CO3
NaHCO3
TiO2
CaCO3
Durene
Methionine
K2CO3
Diiodobenzene
GMP
NH4H2PO4
Triiodobenzene
IMP
Nal
Lysine
Graphene Oxide
SiO2
Tryptophan
SMZ
Manufacturing process
Crystallization
Sol-gel process
Impregnation
Re-crystallization
Polymerization
Extraction
Co-Precipitation
Radical reaction
Core-shell process
Precipitation
Coating
Exfoliation
General types Reactors
Laminar Co., Ltd. is manufacturing all purpose of reactors based on our own technologies.