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Molecular Sieve 5A
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Molecular Sieve 4A
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Molecular Sieve 3A
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BASF-Catalyst R3-11/R3-11G
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BASF-Catalyst
R3-12
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Leuna
Catalyst 6525/6525T
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Producer
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Zeochem
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Zeochem
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Zeochem
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BASF
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BASF
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Leuna
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Price (CHF7kg)
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15.56 (1)
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16.68 (1)
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13.36 (1)
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47.5 (1)
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58.25 (Euro/kg, in 2002)
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Composition
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Zeolite (Ca)
0.7 CaO . 0.3 Na2O . Al2O3
. 2 SiO2 . n H2O (2)
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Zeolite (Na+)
Na2O . AI2O3
. 2 SiO2 . n H2O (2)
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Zeolite (K+)
0,45 K2O . 0,55 Na2O
. Al2O3 . 2 SiO2 . n H2O
(2)
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46% CuO in
highly dispersed form stabilized on a carrier, activated
by various additional components
(7)
Activated copper oxide deposit on
porous graphite support (9)
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Cu-Zn (5)
CuO-ZnO (8)
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Ni-NiO-
AlO (10)
Ni-AlO3 (5)
Ni-NiO, Al2O3 carrier (3,
4)
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Usage (Design)
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Removes H20, CO2,
H2S from sour natural gas streams (2)
Minimizes formation of COS
(2)
Separates normal from iso paraffins
|
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H2O from unsaturated
HC
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O2, CO, H2 and others from industrial
gases and liquids (8)
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Removal of
traces of arsine, phosphine, COS, H,
and other reactive compounds
from
hydrocarbons in vapour or liquid phase.
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O2 from N, Ar, Ne and CO2 (10)
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Removes (Tested)
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H20,
CO2, H2S from sour natural gas
streams (3)
F, Cu, Ni, S (3)
Minimizes formation of COS (3)
Light SH compounds
Buffer for pH 4,5-7 (3)
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F, S (3)
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F, S (3)
As, S (3)
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F, S (3)
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Releases (Tested)
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SiO2 and Al2O3
(for the RPC gas mixture due to the presence of
HF)
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Cu, Cr (3)
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Absorption Capacity
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O2:
0 g/kg (4)
H2O: 200 g/kg (4)
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O2:
0 g/kg (4)
H2O: 200 g/kg (4)
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O2:
0 g/kg (4)
H2O: 200 g/kg (4)
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O2:
4 l/kg
(9)
H2O: 45-97 g/kg (9)
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O2:
15 l/kg (4)
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Regeneration (design)
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Yes - Add
suggested procedure
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Yes - Add
suggested procedure
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Yes - Add
suggested procedure
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Yes - Add
suggested procedure, (8,7)
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No (3)
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No (3, 10)
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Regeneration (Tested)
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Not full for Ni and F (3)
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Not full for F and S (3)
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At 200 oC Ar/H for 12
hours (3)
Not full for F and S (3)
Not for As and
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At 200 oC Ar/H for 12
hours (3)
Not full for F, S (3)
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Used by:
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GIF ATLAS RPC tests (5)
GIF LHC RPC tests (6)
ISR Closed loop CMS RPC tests
(3)
ALICE TOF - 6 ltr.
ATLAS RPC - 1 ltr.
CMS RPC - ltr.
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LHC-b RICH1
LHC-b RICH2
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GIF LHC RPC tests (6)
ATLAS RPC - 25 ltr.
ATLAS TGC
CMS DT
CMS RPC
LHC-b MUON
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GIF ATLAS RPC tests (5)
ISR Closed loop CMS RPC tests
(3)
ATLAS RPC - 6.5 ltr.
ALICE TRD
CMS DT
CMS RPC
LHC-b MUON
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GIF ATLAS RPC tests (5)
GIF LHC RPC tests
(6)
ISR Closed loop CMS RPC tests
(3)
ATLAS RPC - 6.5 ltr.
CMS RPC - 6.5 ltr.
|
GIF ATLAS RPC tests (5)
GIF CMS RPC tests (6)
ISR Closed loop CMS RPC tests
(3)
ATLAS RPC - 13 ltr.
CMS RPC - 13 ltr.
CMS CSC - 26 ltr.
|
References:
(1) CERN Store Catalog (Retrieved on
2008).
(2) Zeochem Molecular Sieves Web List,
http://zeochem.ch/en/products/molecular_sieves
(3) S.Bianco et al.,
Materials, Filters and Gas analyses for CMS RPC detector in
Closed Loop test setup. Mumbai, India, 2008.
(4) A.D'Auria et al.,
Engineering Layouts for the CMS Gas
System Modules. s.l., CMS Internal Note, 2001. EDMS Id.
365365.
(5) R.de Assmundis,
Application of Gas Chromatographic
analysis to RPC detectors in the ATLAS experiment at
CERN-LHC, JINST, 2007. Vol. 2, T06001.
(6) R.Guida,
Studies of Purification of the LHC RPC
Gas Mixture. RPC Gas Task Force Meeting Presentation on June
2008.
(7) BASF-Catalyst R3-11G Technical Leaflet, 1998.
(8) BASF
Petrochemical Catalysts Web List.
http://www.catalysts.basf.com/Main/process/adsorbents/petrochemical_purification/petrochemical_catalysts.be
(9) G.Baptista, Experimental Study on oxygen and water
removal from gasous streams for gas systems in LHC detectors.
EST Note.
(10)
Leuna-Catalyst 6525 Specification, 1999.
(11) S.Bianco et al.,
tatus of ISR and Issues on Purifier
and Gas Analyses at ISR and GIF. RPC Gas Task Force
Meeting, 2008.
(12)
http://www.molecularsieve.org/3A_Molecular_Sieve.htm
(13)
BASF Catalysts R 3-12 Arsine Treater Catalyst. 13 December
1999. Technical Bulletin.
I.Glushkov, January 2009
