EP1200166A2 - Systeme de gestion de vapeur - Google Patents

Systeme de gestion de vapeur

Info

Publication number
EP1200166A2
EP1200166A2 EP00945491A EP00945491A EP1200166A2 EP 1200166 A2 EP1200166 A2 EP 1200166A2 EP 00945491 A EP00945491 A EP 00945491A EP 00945491 A EP00945491 A EP 00945491A EP 1200166 A2 EP1200166 A2 EP 1200166A2
Authority
EP
European Patent Office
Prior art keywords
vapour
absorbing material
heat absorbing
solvent
module
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.)
Withdrawn
Application number
EP00945491A
Other languages
German (de)
English (en)
Inventor
Dennis William Mount
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.)
Individual
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
Application filed by Individual filed Critical Individual
Publication of EP1200166A2 publication Critical patent/EP1200166A2/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D3/00—Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D1/00—Evaporating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D5/00—Condensation of vapours; Recovering volatile solvents by condensation
    • B01D5/0027—Condensation of vapours; Recovering volatile solvents by condensation by direct contact between vapours or gases and the cooling medium
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D5/00—Condensation of vapours; Recovering volatile solvents by condensation
    • B01D5/0057—Condensation of vapours; Recovering volatile solvents by condensation in combination with other processes
    • B01D5/006—Condensation of vapours; Recovering volatile solvents by condensation in combination with other processes with evaporation or distillation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D5/00—Condensation of vapours; Recovering volatile solvents by condensation
    • B01D5/0057—Condensation of vapours; Recovering volatile solvents by condensation in combination with other processes
    • B01D5/006—Condensation of vapours; Recovering volatile solvents by condensation in combination with other processes with evaporation or distillation
    • B01D5/0063—Reflux condensation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—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, aerosols
    • B01D53/002—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, aerosols by condensation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28B—STEAM OR VAPOUR CONDENSERS
    • F28B1/00—Condensers in which the steam or vapour is separate from the cooling medium by walls, e.g. surface condenser
    • F28B1/02—Condensers in which the steam or vapour is separate from the cooling medium by walls, e.g. surface condenser using water or other liquid as the cooling medium
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28B—STEAM OR VAPOUR CONDENSERS
    • F28B3/00—Condensers in which the steam or vapour comes into direct contact with the cooling medium
    • F28B3/06—Condensers in which the steam or vapour comes into direct contact with the cooling medium by injecting the steam or vapour into the cooling liquid
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28C—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA COME INTO DIRECT CONTACT WITHOUT CHEMICAL INTERACTION
    • F28C3/00—Other direct-contact heat-exchange apparatus
    • F28C3/10—Other direct-contact heat-exchange apparatus one heat-exchange medium at least being a fluent solid, e.g. a particulate material
    • F28C3/12—Other direct-contact heat-exchange apparatus one heat-exchange medium at least being a fluent solid, e.g. a particulate material the heat-exchange medium being a particulate material and a gas, vapour, or liquid

Definitions

  • Volatile solvents are used in many industrial processes in which the volatile solvent is
  • the vapour is stored. While the scrubbing system may reduce or even eliminate the
  • the used scrubbing material may in itself present an environmental condition
  • Examples of such containers include oil storage tanks and gasometers.
  • vapour is formed.
  • the vapour is then allowed to pass through a spiral or serpentine tube where it
  • This method has a disadvantage in that as the vapour condenses in the tube, it has the
  • vapour in the collection vessel, or the conduit leading thereto can result in "foaming" in the distillation vessel.
  • the collection vessel In order to prevent buildup of back pressure in the collection vessel and consequently the distillation vessel, the collection vessel must be vented. Similarly, any
  • the present invention provides a vapour recovery system for efficient and safe recovery of a vapour from a solvent comprising:
  • a distillation module comprising a distillation chamber for the solvent and heating
  • a direct condensation module comprising a container for condensing the vapour and
  • conduit means for directing the vapour substantially without condensation from the
  • vapour management module for condensing vapour remaining uncondensed by the
  • vapour outlet located above the surface of the liquid in the direct condensation
  • the vapour outlet communicating with the vapour management module to allow for
  • a vapour management system comprises a
  • vapour from the vapour inlet through the heat absorbing material to the vent.
  • vapour may be guided through the container by means of a conduit extending between the vapour
  • the container may contain solid heat absorbing material which is permeable to vapour and
  • Figure 1 is a schematic view of a preferred embodiment of the vapour recovery
  • Figure 2 is a sectional view of a preferred embodiment of the distillation unit of the vapour recovery system illustrated in Figure 1.
  • Figure 3 is a sectional view of a preferred embodiment of the distillation unit o the vapour recovery system illustrated in Figure 1 , in which the heating means is located at the
  • Figure 4 is a sectional view of a preferred embodiment of a lined distillation chamber
  • Figure 5 is a sectional view of a preferred embodiment of the direct condensation
  • Figure 6 is a sectional view of a preferred embodiment of the vapour management module of the vapour recovery system illustrated in Figure 1.
  • Figure 7 is a partial sectional view of an alternative embodiment of the vapour
  • the heat absorbing material is in a solid form.
  • Figure 8 is a schematic representation of a heating control system that is employed in
  • the distillation module to control the rate of vaporization of solvents.
  • solvents to be recovered is heated in the distillation module [1] to generate solvent vapour.
  • This solvent vapour is then directed through a downwardly inclined conduit [12] to a
  • condensation module [11] is charged with a coolant liquid [14] which is the same solvent as
  • the vapour is subjected to a first round of cooling in which the heat absorbing material is the solvent to be recovered in the liquid phase [14].
  • vapour management module [31] In the vapour management module [31] the vapour air mixture is required to pass through a heat-absorbing material [44] and this heat exchange process leads to further
  • vapour Preferably, any condensate formed in the vapour management module [31] runs
  • the condensate formed in the vapour management module [31] can also be run into a secondary container, if desired.
  • the heating vessel [3] is provided with one or more heating
  • each heating element [4] immersed in the oil and, in operation, each heating element [4] heats the oil
  • distillation chamber reaches its boiling point and vapour is generated.
  • the power supplied to the heating element is controlled to regulate the rate of vaporization of the solvent until the solvent is substantially all
  • the oil [5] should not be flammable within the
  • the oil [5] in the heating vessel [3] will surround a substantial portion of the
  • distillation chamber [2] (for example, to the level 5a in Figure 2) to ensure that there is sufficient heat to maintain the evaporated solvent in the vapour phase at least as far as the
  • chamber [2] as comprising a heating vessel [3] containing one or more heating elements [4]
  • the means for heating the distillation chamber [2] is an
  • distillation chamber [2] is heated from the top down. This top heating provides the
  • the distillation chamber [2] is preferably provided with an anti-vacuum valve [V]
  • distillation module [1] there is a line feeding
  • the distillation chamber [2] is provided.
  • the anti- vacuum valve can be shut off
  • One aspect of the current invention is a heating control system, as illustrated schematically in Figure 8, that is employed in the distillation module to control the rate of
  • the solvents are
  • the control system is designed to do this in a time efficient manner while also minimizing
  • the heating control system has three key components, a variable heating means [61],
  • control computer [63] for example, a microprocessor with required software.
  • the control computer [63] by use of a control
  • relays [64] which are in series between a power supply and heating
  • the first mode is a solvent mode
  • control cycle is repeated until the solvents have all been vaporized.
  • the second mode is the water mode.
  • the water mode of the control system there is
  • the two modes of the control system allow the distillation chamber to be used for
  • controlling the power applied to the heating means [61] also controls the rate of
  • the temperature sensing means is a probe [6]
  • the rate of evaporation of solvent from the distillation chamber [2] is regulated by means
  • Controlling the rate of vaporization of the solvent in the distillation chamber [2] means that the vapour pressure in the distillation chamber [2] is closely regulated. Since
  • distillation chamber [2] is lined with a bag [8] such that, following baking, the entire bag
  • the bag [8] containing the baked contaminants can be disposed of.
  • the bag [8] is stable within the
  • Teflon trade-mark for polytetrafluoroethylene
  • the condensation module [11] is comprised of a container [20] into which the
  • vapour to be recovered enters via vapour inlet [13].
  • the condensation module is primed using a predetermined volume of the solvent to be recovered in the liquid phase [14]. This liquid [14] is free from contamination.
  • the vapour entering the condensation module [11] is directed by the inlet [13] to pass beneath the surface [15] of the liquid [14] such that the
  • vapour which subsequently enters the container [20] must travel a greater distance
  • vapour may pass through the liquid [14] and accumulate above the surface [15]
  • vapour having entered the vapour outlet [32] from the condensation module [11], then passes from the outlet [32] into the vapour management
  • management module [31] comprises a sealed chamber [45] containing a serpentine tube [43] communicating with the vapour outlet [32] at its entrance end and a vent [42] at its exit end.
  • the mixture of air and solvent vapour exiting the condensation module [11] is
  • the cooling medium [44] inside the sealed chamber [45] absorbs heat and therefore causes further condensation of the vapour so that substantially all of the vapour
  • the medium [44] can be any suitable coolant medium.
  • the medium [44] will provide sufficient heat absorption for condensation of all
  • vapours such that only air exits the system through vent [42].
  • the medium [44] is water mixed with a salt
  • the tube [43] allows condensed solvent to flow back by gravity
  • the condensate can be any condensate to the atmosphere through the vent [42].
  • the container [20] may be provided with a tap [T] , which can be used to drain the
  • this tap is situated below the surface [15] of the liquid, and the closer
  • a downwardly sloping overflow pipe [D] may be provided in the container
  • vapour management module [31] in another embodiment of the vapour management module [31], as illustrated in
  • the air/solvent vapour mixture is allowed to pass from the outlet [32] to the vent [42] without the use of a tube [43].
  • the material [44] is a solid material
  • the material may be prevented from falling back through the outlet [32] into
  • the container [20] either by selecting the size of the material particles to be sufficiently
  • vapour management module [31] increases the efficiency of the condensation in the vapour
  • the vapour management module [31] can be any type of vapour management module [31].
  • the vapour management module [31] can be any type of vapour management module [31].
  • vapour management module are important.
  • the absorbing material is a crystalline salt
  • the pipe [43] is of 12mm bore and 75 cm in length
  • vapour management modules [11] and vapour management modules [31] are possible. Further, it is possible to
  • vapour management module [31] to recover vapour from any vent or exhaust.
  • vapour management module [31] could be used are on a vent to an oil
  • vapour management modules Condensate formed in such vapour management modules can then run back by gravity into
  • vapour solvent to be recovered will have different requirements. It is certainly possible to subject the vapour to sequential steps of direct condensation and/or to sequential vapour
  • a solid inert mass such as rocks or ball bearings are suitable to absorb

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Analytical Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)

Abstract

L'invention concerne un système et un procédé de récupération de vapeur de produits chimiques volatils améliorant l'efficacité et la sécurité du processus de récupération de vapeur. La substance volatile est vaporisée dans une unité de distillation sous commande d'un système de chauffage informatisé. La vapeur résultante est d'abord condensée par barbotage de la vapeur directement dans la phase liquide de la substance volatile. La vapeur qui reste après passage à travers la phase liquide s'accumule au-dessus de ladite phase liquide, et peut s'échapper dans un module de gestion de vapeur. Ce module de gestion de vapeur favorise une condensation efficace de la vapeur par échange de chaleur entre ladite vapeur et un matériau contenu dans ledit module de gestion de vapeur. Lors du refroidissement du module de gestion de vapeur, la vapeur se condense, et peut retourner dans la phase liquide dans laquelle elle est passée lorsqu'elle était en phase vapeur. Le module de gestion de vapeur possède une évacuation sensiblement exempte de vapeur.
EP00945491A 1999-07-07 2000-07-07 Systeme de gestion de vapeur Withdrawn EP1200166A2 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
CA2277449 1999-07-07
CA 2277449 CA2277449A1 (fr) 1999-07-07 1999-07-07 Systeme de gestion des vapeurs
PCT/CA2000/000807 WO2001003810A2 (fr) 1999-07-07 2000-07-07 Systeme de gestion de vapeur

Publications (1)

Publication Number Publication Date
EP1200166A2 true EP1200166A2 (fr) 2002-05-02

Family

ID=4163738

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00945491A Withdrawn EP1200166A2 (fr) 1999-07-07 2000-07-07 Systeme de gestion de vapeur

Country Status (5)

Country Link
EP (1) EP1200166A2 (fr)
JP (1) JP2003504177A (fr)
AU (1) AU5958300A (fr)
CA (1) CA2277449A1 (fr)
WO (1) WO2001003810A2 (fr)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USD620511S1 (en) 2010-02-02 2010-07-27 Rudy Publ Solvent recycler
US8381767B2 (en) 2010-02-02 2013-02-26 Safety-Kleen Systems, Inc. Reservoir module for a recycler assembly
US8425732B2 (en) 2010-02-02 2013-04-23 Safety-Kleen Systems, Inc. Method of operation for a recycler assembly
US8470137B2 (en) 2010-02-02 2013-06-25 Safety-Kleen Systems, Inc. Recycler assembly
US8470138B2 (en) 2010-02-02 2013-06-25 Safety-Kleen Systems, Inc. Odor mitigation in a recycler assembly
US8470136B2 (en) 2010-02-02 2013-06-25 Safety-Kleen Systems, Inc. Parts washer with recycler assembly
US8506761B2 (en) 2010-02-02 2013-08-13 Safety-Kleen Systems, Inc. Recycler module for a recycler assembly

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2317620A1 (fr) * 2000-09-06 2002-03-06 Dennis William Mount Systeme d'anti-pressurisation
WO2003018218A1 (fr) * 2001-08-23 2003-03-06 Chemchamp (Barbados) Inc. Systeme de recuperation et de recyclage de solvants provenant d'un processus de nettoyage a base de solvants
EP2295529B2 (fr) 2002-07-11 2022-05-18 Basf As Procédé de diminution des polluants environnementaux dans une huile ou une graisse et produit d'alimentation pour poissons
SE0202188D0 (sv) 2002-07-11 2002-07-11 Pronova Biocare As A process for decreasing environmental pollutants in an oil or a fat, a volatile fat or oil environmental pollutants decreasing working fluid, a health supplement, and an animal feed product
CA2413438A1 (fr) 2002-12-03 2004-06-03 Chemchamp (Barbados) Inc. Systeme de recyclage constant
DE102006012866B4 (de) 2006-03-19 2009-04-09 Uic Gmbh Verfahren zur Abtrennung leichtflüchtiger Komponenten aus einem Stoffgemisch sowie Vorrichtung zur Durchführung dieses Verfahrens
CN104422300B (zh) * 2013-08-30 2017-05-31 程长青 一种真空冷凝器
CN109520173B (zh) * 2018-12-30 2023-10-13 苏州斯泰姆克工业智能科技有限公司 一种冷却系统

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FR657685A (fr) * 1927-12-01 1929-05-25 Procédé et dispositif pour la condensation de vapeurs, en particulier, des vapeurs des sous-produits volatils de la distillation des bois, en forêt
GB603598A (en) * 1942-04-24 1948-06-18 Expl Des Procedes Ab Der Halde An improved method of and means for condensing corrosive vapours
US4850117A (en) * 1987-08-06 1989-07-25 Northern Telecom Limited Condensation and recovery of solvent and other vapors
DE3811167A1 (de) * 1988-03-31 1989-10-19 Linde Ag Verfahren und vorrichtung zur abtrennung von kondensierbaren bestandteilen aus einem rohgasgemisch
DE4134293C1 (fr) * 1991-10-17 1993-02-11 Messer Griesheim Gmbh, 6000 Frankfurt, De
DE4214738A1 (de) * 1992-05-04 1993-11-11 Bayer Ag Destillationskolonne mit dampfförmiger Seitenstromentnahme
US5873980A (en) * 1997-05-29 1999-02-23 Houston Industries Incorporated Apparatus and method for recovering solvent

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO0103810A3 *

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USD620511S1 (en) 2010-02-02 2010-07-27 Rudy Publ Solvent recycler
US8381767B2 (en) 2010-02-02 2013-02-26 Safety-Kleen Systems, Inc. Reservoir module for a recycler assembly
US8425732B2 (en) 2010-02-02 2013-04-23 Safety-Kleen Systems, Inc. Method of operation for a recycler assembly
US8470137B2 (en) 2010-02-02 2013-06-25 Safety-Kleen Systems, Inc. Recycler assembly
US8470138B2 (en) 2010-02-02 2013-06-25 Safety-Kleen Systems, Inc. Odor mitigation in a recycler assembly
US8470136B2 (en) 2010-02-02 2013-06-25 Safety-Kleen Systems, Inc. Parts washer with recycler assembly
US8506761B2 (en) 2010-02-02 2013-08-13 Safety-Kleen Systems, Inc. Recycler module for a recycler assembly

Also Published As

Publication number Publication date
CA2277449A1 (fr) 2001-01-07
WO2001003810A2 (fr) 2001-01-18
AU5958300A (en) 2001-01-30
WO2001003810A3 (fr) 2001-05-25
JP2003504177A (ja) 2003-02-04

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