Hy-pak Pall ring

HY-PAK is an improved design of Pall ring, it has better advantaged than Pall rings, such as:
1) with a larger flux and low pressure drop.

2) to further improve the ring of gas and liquid distribution in favor of mass transfer process.

3) with a wide range of operating flexibility.

4)  high mechanical strength.

Specifications for Hy-pak:

Diameter (mm)	Pieces (m-3)	Weight (kg/m3)	Void %	Packing Factor
76	1100	208	97.7	49
50	3670	224	97.4	59
38	9390	280	97	85
25	29900	312	96.5	141

HETP estimates for Hy-pak compare others distillatoin applications:

	Pressure Range	general packing	Estimating HETP
System	If known	Type/style/make	Ft or In. marked
ISO-Octane/Toluene	100mm Hg	Hy-pak No.2	2.0-2.7
Same	740mm Hg	Hy-pak No.1	0.7-2.7
Para/Ortho Xylene	740mm Hg	Metal Intalox No.25	0.8-1.8
Same	740mm Hg	Metal Intalox No.40	1.3-1.55
Same	Vacuum	Metal Intalox No.50	1.75-2.15
Chlorinated HC	Vacuum	Metal intalox No.25	2
Chlorinated HC	Vacuum	Metal Intalox No.40	2.4
Chlorinated HC	740mm Hg	Metal Intalox No.50	3.5
ISO-Octane/Toluene	740mm Hg	Pall ring,1" Metal	1.0-2.0
ISO-Octane/Toluene	740mm Hg	Pall ring,1.1/2" Metal	0.75-1.0(3.5)
ISO-Octane/Toluene	740mm Hg	Pall ring, 2" Meta	1.5-2.2
Methanol/Water	740mm Hg	Pall ring,1" Metal	0.65-0.8 (1.2)
Isopropanol/Water	740mm Hg	Pall ring,1" Metal	0.6-1.5
Benzene/Toluene	740mm Hg	Pall ring,1" Metal	1.0-1.5
Acetone/Water	740mm Hg	Pall ring,1" Metal	0.9-1.2(1.4)
Same	-	Flexiring,1" Metal	1.6-1.8(2.3)
Same	-	Flexiring,2" Metal	1.8-2.2(2.4)
Same	-	Koch Sulzer metal	0.45-0.9
Light Hydrocarbon	400psia	General packing	approx 0.75
Propane/Butane	235psia	General packing	approx. 0.80
Chlorobenzene/ethylbenzene	50mm Hg	Montz structured metal	5in-17in
Chlorohexane/n-Heptane	1atm	#2 Nutter ring	22in-30in
Chlorohexane/n-Heptane	5psia	#2 Nutter ring	25in-30in
various sys.	Vacuum	Goodloe Metal, various	5in-8in
ISO-Octane/Toluene	1atm	Cascade Mini-ring, #3	22in-28in
ISO-Octane/Toluene	1atm	Cascade Mini-ring, #2	18in-24in
H-naphtha/light gas oil	Unknown	Gempak 1/2" crimp	13in-15in
H-naphtha/light gas oil	Unknown	Gampak 1" Crimp	22in-27in
H-naphtha/light gas oil	Unknown	Gampak 1/4" Crimp	8in-10in
ethylene Clichloride/benzene	1atm	ACS-X Mesh	4in-9in
Methylcyclohexane/Toluene	1atm	ACS-X 200 Mesh	3.5in-12in
Unknown	Unknown	Koch Structured flexipac	17in
General/Average	Unknown	Koch/Sulzer ® structured	3in-9in
Ortho/para	16mm Hg Abs	Koch/Sulzer ® structured	5in-16in
Ortho/para	100mm Hg Abs	Koch/Sulzer ® structured	4.5in-8in