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1. (WO2007006757) METHOD FOR CONTROLLING LEAKAGE RATE OF ACTIVE CARBON FILTERS
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/2007/006757 International Application No.: PCT/EP2006/064021
Publication Date: 18.01.2007 International Filing Date: 07.07.2006
IPC:
B01D 53/04 (2006.01) ,B01D 53/30 (2006.01) ,G21F 9/02 (2006.01)
B PERFORMING OPERATIONS; TRANSPORTING
01
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
D
SEPARATION
53
Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases or aerosols
02
by adsorption, e.g. preparative gas chromatography
04
with stationary adsorbents
B PERFORMING OPERATIONS; TRANSPORTING
01
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
D
SEPARATION
53
Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases or aerosols
30
Controlling by gas-analysis apparatus
G PHYSICS
21
NUCLEAR PHYSICS; NUCLEAR ENGINEERING
F
PROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULAR RADIATION OR PARTICLE BOMBARDMENT; TREATING RADIOACTIVELY CONTAMINATED MATERIAL; DECONTAMINATION ARRANGEMENTS THEREFOR
9
Treating radioactively contaminated material; Decontamination arrangements therefor
02
Treating gases
Applicants:
MAINTENANCE SECURITE INSTALLATION SERVICE [FR/FR]; ZAC de Courcelle 1 route de la Noue F-91196 Gif Sur Yvette, FR (AllExceptUS)
GONTIER, Pascal [FR/FR]; FR (UsOnly)
Inventors:
GONTIER, Pascal; FR
Agent:
POULIN, GĂ©rard; BREVATOME 3, rue du Docteur Lancereaux F-75008 Paris, FR
Priority Data:
05 5213611.07.2005FR
Title (EN) METHOD FOR CONTROLLING LEAKAGE RATE OF ACTIVE CARBON FILTERS
(FR) PROCEDE DE CONTROLE DU TAUX DE FUITE DES FILTRES A CHARBON ACTIF
Abstract:
(EN) The invention concerns a method for measuring leakage rate of an active carbon filter, characterized in that it includes the following steps: injecting into the circuit comprising the filter to be tested a gas mixture including a carrier gas and a gas trappable by said filter to be tested; sampling, upstream of the filter, a relative amount of said gas mixture in storage means; measuring the amount of trappable gas contained in the storage means using a photo-ionization chromatograph; determining the leakage rate by comparing the relative amount of trappable gas present downstream and the amount of trappable gas present upstream of the filter.
(FR) L'invention concerne un procédé de mesure du taux de fuite d'un filtre à charbon actif, caractérisé en ce qu'il comprend les étapes suivantes : injection, dans le circuit comprenant le filtre à tester, d'un mélange de gaz comprenant un gaz vecteur et un gaz piègeable par ledit filtre à tester, prélèvement, en amont et en aval du filtre, d'une quantité relative dudit mélange de gaz dans des moyens de stockage, mesure de la quantité de gaz piègeable contenue dans chacun des moyens de stockage à l'aide d'un chromatographe à photoionisation, détermination du taux de fuite par comparaison de la quantité relative de gaz piègeable présent en aval et de la quantité relative de gaz piègeable présent en amont du filtre.
Designated States: AE, AG, AL, AM, AT, AU, AZ, BA, BB, BG, BR, BW, BY, BZ, CA, CH, CN, CO, CR, CU, CZ, DE, DK, DM, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, HN, HR, HU, ID, IL, IN, IS, JP, KE, KG, KM, KN, KP, KR, KZ, LA, LC, LK, LR, LS, LT, LU, LV, LY, MA, MD, MG, MK, MN, MW, MX, MZ, NA, NG, NI, NO, NZ, OM, PG, PH, PL, PT, RO, RS, RU, SC, SD, SE, SG, SK, SL, SM, SY, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LS, MW, MZ, NA, SD, SL, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HU, IE, IS, IT, LT, LU, LV, MC, NL, PL, PT, RO, SE, SI, SK, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, ML, MR, NE, SN, TD, TG)
Publication Language: French (FR)
Filing Language: French (FR)
Also published as:
EP1901830ES2371558US20080210879FR2888128