CA2094165A1 - Process for Vessel Decontamination - Google Patents

Process for Vessel Decontamination

Info

Publication number
CA2094165A1
CA2094165A1 CA2094165A CA2094165A CA2094165A1 CA 2094165 A1 CA2094165 A1 CA 2094165A1 CA 2094165 A CA2094165 A CA 2094165A CA 2094165 A CA2094165 A CA 2094165A CA 2094165 A1 CA2094165 A1 CA 2094165A1
Authority
CA
Canada
Prior art keywords
vessel
decontamination
vessel decontamination
contaminant
condense
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CA2094165A
Other languages
French (fr)
Other versions
CA2094165C (en
Inventor
Nishaneth K. Mehta
Richard W. Krajicek
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
PSC INDUSTRIAL OUTSOURCING Inc
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from US07/998,556 external-priority patent/US5356482A/en
Application filed by Individual filed Critical Individual
Publication of CA2094165A1 publication Critical patent/CA2094165A1/en
Application granted granted Critical
Publication of CA2094165C publication Critical patent/CA2094165C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
    • C23G1/00—Cleaning or pickling metallic material with solutions or molten salts
    • C23G1/24—Cleaning or pickling metallic material with solutions or molten salts with neutral solutions
    • C23G1/26—Cleaning or pickling metallic material with solutions or molten salts with neutral solutions using inhibitors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto 
    • B08B9/08—Cleaning containers, e.g. tanks
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/16—Organic compounds
    • C11D3/18—Hydrocarbons
    • C11D3/188—Terpenes
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
    • C23G1/00—Cleaning or pickling metallic material with solutions or molten salts
    • C23G1/24—Cleaning or pickling metallic material with solutions or molten salts with neutral solutions
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
    • C11D1/02—Anionic compounds
    • C11D1/12—Sulfonic acids or sulfuric acid esters; Salts thereof
    • C11D1/22—Sulfonic acids or sulfuric acid esters; Salts thereof derived from aromatic compounds
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
    • C11D1/38—Cationic compounds
    • C11D1/52—Carboxylic amides, alkylolamides or imides or their condensation products with alkylene oxides
    • C11D1/523—Carboxylic alkylolamides, or dialkylolamides, or hydroxycarboxylic amides (R1-CO-NR2R3), where R1, R2 or R3 contain one hydroxy group per alkyl group
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
    • C11D1/66—Non-ionic compounds
    • C11D1/72—Ethers of polyoxyalkylene glycols
    • C11D2111/20—

Abstract

An improved process for the decontamination of process equipment and vessels is described wherein an extractant material for the contaminant and a surfactant are vaporized, heated with steam, to condense on the internal surfaces of the vessel to trap contaminants, such as benzene, for removal from the vessel to allow safe entry for humans for inspection and maintenance.
CA002094165A 1992-12-30 1993-04-16 Process for vessel decontamination Expired - Lifetime CA2094165C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US07/998,556 1992-12-30
US07/998,556 US5356482A (en) 1991-12-10 1992-12-30 Process for vessel decontamination
CN94107939.2A CN1114243A (en) 1992-12-30 1994-06-28 Process for vessel decontamination

Publications (2)

Publication Number Publication Date
CA2094165A1 true CA2094165A1 (en) 1994-07-01
CA2094165C CA2094165C (en) 1999-12-07

Family

ID=37075783

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002094165A Expired - Lifetime CA2094165C (en) 1992-12-30 1993-04-16 Process for vessel decontamination

Country Status (8)

Country Link
EP (1) EP0604698B1 (en)
CN (1) CN1114243A (en)
AT (1) ATE186756T1 (en)
CA (1) CA2094165C (en)
DE (1) DE69327034T2 (en)
DK (1) DK0604698T3 (en)
PT (1) PT604698E (en)
SG (1) SG59993A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2502089A (en) * 2012-05-15 2013-11-20 Pell Frischmann Consultants Ltd Filtering contaminants from fluid
CN105970244A (en) * 2016-05-20 2016-09-28 深圳市鑫承诺环保产业股份有限公司 High-precision washing process for raw part of gold coin or silver coin
CA3228998A1 (en) * 2021-09-30 2023-04-06 Ronny TEPPER Composition and its use in cleaning applications

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2023496A (en) * 1928-03-12 1935-12-10 Verne J Todd Method for cleaning oil-covered surfaces
US1891592A (en) * 1932-07-26 1932-12-20 Gerald James W Fitz Method of cleaning and gas-freeing hydrocarbon storage tanks
US2715594A (en) * 1952-08-26 1955-08-16 Standard Oil Co Method of cleaning asphalt tanks
US4511488A (en) * 1983-12-05 1985-04-16 Penetone Corporation D-Limonene based aqueous cleaning compositions
US4869825A (en) * 1987-05-26 1989-09-26 Werner Steiner Process for the removal of organic contaminants from solids
GB2243842B (en) * 1990-04-12 1993-09-22 Electrolube Limited Method and compositions for circuit board cleaning using ether-containing terpenoid compounds
WO1992010314A1 (en) * 1990-12-07 1992-06-25 Golden Technologies Company, Inc. Method for finishing metal surfaces with terpene

Also Published As

Publication number Publication date
DK0604698T3 (en) 2000-04-03
DE69327034T2 (en) 2000-05-25
CA2094165C (en) 1999-12-07
EP0604698A2 (en) 1994-07-06
ATE186756T1 (en) 1999-12-15
CN1114243A (en) 1996-01-03
EP0604698A3 (en) 1996-12-11
SG59993A1 (en) 1999-02-22
PT604698E (en) 2000-05-31
DE69327034D1 (en) 1999-12-23
EP0604698B1 (en) 1999-11-17

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Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed

Effective date: 20130416

MKEC Expiry (correction)

Effective date: 20131009