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Process Equipment › Tower Packings

Sulphuric Acid

Process Equipment › Tower Packings

SULPHURIC ACID / CERAMIC TOWER PACKINGS

PROCESS INFORMATION

In a Sulphuric Acid plant contact section there are Drying and Absorbtion Towers, which are fitted with and acid distribution device, which sprays or flows Sulphuric Acid downwards into a bed of (usually) random packings which allow the upward flowing gas to contact the counter-current flowing acid, thereby achieving drying of air or absorbtion of SO3.

Begg Cousland supply high quality ceramic packings from China and India, which we distribute, with our guarantees. We offer saddles, rings and cross-partition rings. They have been widely used worldwide, many times by major contractors and end users.

Intalox saddle Saddles

            

Standard Data – Saddles

Size

(nominal)

Bulk Density kg/m3

No. of Pieces per m3

Surface Area m2/m3

Percent Void Space %

25 mm

650

84,000

250

78

38 mm

630

25,000

164

84

50 mm

620

9,400

142

81

75 mm

550

1,870

92

80

Standard Data – Super Intalox Saddles

Size

(nominal)

Bulk Density kg/m3

No. of Pieces per m3

Surface Area m2/m3

Percent Void Space %

25 mm

705

84,000

255

77

38 mm

670

25,000

195

80

50 mm

760

9,400

118

79

75 mm

590

1,870

92

80

Standard Data – Rings

O/Dia. x  Wall Thickness

Bulk Density kg/m3

No. of Pieces per m3

Surface Area m2/m3

Percent Void Space %

15 mm

x 2mm

880

378,000

370

64

25 mm

x 2.5mm

670

47,700

190

74

38 mm

x 4 mm

740

13,500

120

68

50 mm

x 5 mm

660

5,800

92

74

75 mm

x 8 mm

590

1,700

62

75

100 mm

x 10 mm

580

700

46

80

150 mm

x 15mm

680

320

50

80

Standard Data – Cross Partition Rings

O/Dia. x Wall Thickness

Bulk Density kg/m3

No. of Pieces per m3

Surface Area m2/m3

Percent Void Space %

50 mm

x 5 mm

830

5800

132

68

75 mm

x 8 mm

1140

1950

120

56

100 mm

x 10 mm

1025

1000

110

53

150 mm

x 15mm

1035

290

60

58

Typical Specifications of Ceramic Saddles & Rings

Temperature resistance, 1460 °C

Water Absorption: 0.11-0.15%

Porosity: 0.25-0.35%

Losses in Sulphuric acid by ASTM C-279: 0.07-0.23%

Real density: 2300 kg/m3

Heat Conductivity: 1.412 W/(m.K) at 200 °C

               1.427 W/(m.K) at 500 °C                              

Thermal Expansion, 4.7-5.6×10-6 mm/mm.°C 

Hardness:  HM 7.2

Typical Chemical Composition (%)

SiO2 70.21-74.51

Al2O3 19.79-23.13

Fe2O3 0.38-1.15

CaO .01-0.52

MgO 0.27-0.88

K2O 1.32-3.40

Na2O 0-0.20

Ti2O 0.01- 0.15