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Raschig Ring

Raschig Ring

Raschig Ring

中文名:拉西环

1. Metal Raschig Ring

Since 1914 when F.Raschig invented this type of ring for tower packing, Metallic Raschig Ring used in petrochemical industry has been developed extensively. The R-ring is now used in many applications, but particularly in supporting catalyst beds.

Metallic Raschig Rings are available in a wide range of carbon and stainless steels, 304, 304L, 410,316, 316L etc.

Geometric Parameters

Size

Bulk density

Quantity

Specific surface area

Void volume

mm

kg/m3

n/m3

m2/m3

m3/m3

15×15×0.3

379

230000

350

95

25×25×0.4

318

51000

216

96

25×25×0.5

400

51000

220

95

35×35×0.8

430

19000

150

93

50×50×0.5

203

6500

106

97.4

50×50×0.7

285

6500

108

96.4

50×50×0.8

325

7000

109

95

76×76×0.8

212

1830

69

97.3

80×80×1.2

300

1600

65

96

90×90×1.0

236

1160

62

 

 

2. Plastic Raschig Ring

There are kinds of materials for Plastic Raschig Ring, such as PP, PVC, CPVC, PVDF, PTFE, PE.

Characteristic: 

a. Low pressure drop, excellent distribution,large void space, large flux, high mass-transfer effiency, low energy consumption, etc.Operational temperature range: Up to +150

b. Widely used in separation and absorption process, reducing pressure for device, deviating sulfur for the systems. Itcan easily isolate Ethylbenzene, Toluene, Trimenthypentane etc.

c. Package: Enhanced plastic super bag in jumbo bag, wooden case or carton. Other packing methord are available upon customers’ request.

Technical Data

Size

Bulk Density

Quantity

Void Volume

Surface Area

mm

kg/m3

n/m3

%

m2/m3

15*15*0.3

385

240000

94

360

25*25*0.3

231

51000

96

215

38*38*0.4

207

14500

96

135

50*50*0.5

200

6300

96

105

80*80*0.8

200

1600

96

80

 

3. Ceramic Raschig Ring

Raschig ring is a form of random packing and is used in commercial fractional distillation columns to reduce pressure loss (versus using trays), while maintaining good efficiency and economy. Raschig ring is proven in a wide range of mass transfer applications. Raschig ring structure provides one of the largest surface areas among tower packing options and handles heavy loading, process upsets and temperature shocks.

Physical Properties

Size

DxHxT               mm

Specific area m2m3

Void volume m3m3

Number pc./m3

Bulk density kg/m3

Dry packing factor m-1

1/4''(6mm)

6x6x2

789

0.73

3,110,000

880

2030

2/5''(10mm)

10x10x2

440

0.7

720,000

800

1280

3/5''(15mm)

15x15x2

330

0.7

250,000

750

960

1''(25mm)

25x25x2.5

190

0.78

50,000

650

400

1.4''(35mm)

35x35x4

150

0.76

18,500

620

320

1.6''(40mm)

40x40x5

126

0.75

13,200

600

305

2''(50mm)

50x50x5

93

0.81

6,400

660

177

3''(80mm)

80x80x9.5

90

0.68

1,950

560

234

4''(100mm)

100x100x10

70

0.7

1,000

700

172

6''(150mm)

150x150x15

50

0.68

295

790

142

Chemical Composition

SiO2

Al2O3

Fe2O3

CaO

K2O+Na2O

70%

17-32%

1%

1-2%

2-4%