Ceramic saddle is improved from the arc saddle, it changes the both arched surface to rectangular surface and makes the interior and exterior radius of curvature different, this construction overcomes the problem of nesting basically, it makes porosity distributed even and improves the distribution of the fluid , greater capacity and lower pressure drop than Raschig ring.
They are available in variable sizes such as (mm): 12,16,19,25,38,50,76
1)Ceramics Saddle applied to Petrochemical
|
size
index
|
1/2“
12mm
|
5/8“
16mm
|
3/4“
19mm
|
1“
25mm
|
1.5“
38mm
|
2“
50mm
|
3“
76mm
|
|
number pc./m3
|
740,000
|
382,000
|
230,000
|
84,000
|
25,000
|
9,000
|
2,400
|
|
bulk density kg/m3
|
780
|
710
|
660
|
580
|
560
|
550
|
520
|
|
free vol.%
|
73
|
70
|
74
|
74
|
75
|
76
|
78
|
|
surface area m2/m3
|
620
|
535
|
390
|
255
|
166
|
120
|
90
|
|
specific gravity g/cm3
|
2.3
|
|
water absorption %
|
<0.3%
|
|
acid resistance %
|
>99.6%
|
|
max operating temp ℃
|
1100℃
|
|
porosity %
|
<1%
|
|
moh’s hardness scale
|
>6.5
|
|
thermal conductivity
w/m.k
|
0.9-1.0
|
|
specific heat j/kg ℃
|
850-900
|
Chemical Composition
|
SiO2
|
Al2O3
|
Fe2O3
|
K2O+Na2O
|
CaO
|
MgO
|
others
|
|
>73%
|
17-23%
|
<1%
|
2-4%
|
<0.5%
|
<0.5%
|
<0.1%
|
Specifications
|
size
|
diameter of deck mm
|
outside diameter
mm
|
height mm
|
wall thickness mm
|
|
1/2’’(12mm)
|
12±1.0
|
20±1.2
|
10±1.o
|
2.0±0.45
|
|
5/8”(16mm)
|
16±1.0
|
24±1.5
|
12±1.o
|
2.0±0.5
|
|
3/4”(19mm)
|
19±1.5
|
28±1.5
|
14±1.0
|
2.5±0.5
|
|
1”(25mm)
|
25±1.5
|
38±2.0
|
19±1.0
|
3.0±0.5
|
|
1.5”(38mm)
|
38±2.0
|
60±3.0
|
30±1.5
|
4.0±1.0
|
|
2”(50mm)
|
50±2.5
|
80±4.0
|
40±2.0
|
5.0±1.0
|
|
3”(76mm)
|
76±4.0
|
114±4.0
|
57±3.0
|
9.0±1.0
|
2)Ceramics Saddle applied to RTO
|
size
index
|
1/2“
12mm
|
3/4“
19mm
|
1“
25mm
|
1.5“
38mm
|
2“
50mm
|
3“
76mm
|
|
number pc./m3
|
740,000
|
230,000
|
84,000
|
25,000
|
9,300
|
2,400
|
|
bulk density kg/m3
|
800
|
670
|
580
|
560
|
550
|
530
|
|
free vol.%
|
73
|
74
|
74
|
75
|
76
|
78
|
|
surface m2/m3
|
620
|
390
|
255
|
166
|
120
|
90
|
|
specific gravity g/m3
|
2.35
|
|
water absorption %
|
<0.5%
|
|
acid resistance %
|
>99.6%
|
|
max operating tem ℃
|
1280-1320℃
|
|
porosity %
|
<1%
|
|
moh’s hardness scale
|
7-8
|
|
thermal conductivity w/m.k
|
0.9-1.0
|
|
specific heat j/kg℃
|
850-900
|
Chemical Composition
|
SiO2
|
Al2O3
|
Fe2O3
|
K2O+Na2O
|
CaO
|
|
>70%
|
23-30%
|
<1%
|
2-4%
|
<1-2%
|
