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WO2018185536A1 - Purificateur de gaz coudé et son procédé de production - Google Patents

Purificateur de gaz coudé et son procédé de production Download PDF

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Publication number
WO2018185536A1
WO2018185536A1 PCT/IB2017/053518 IB2017053518W WO2018185536A1 WO 2018185536 A1 WO2018185536 A1 WO 2018185536A1 IB 2017053518 W IB2017053518 W IB 2017053518W WO 2018185536 A1 WO2018185536 A1 WO 2018185536A1
Authority
WO
WIPO (PCT)
Prior art keywords
gas
tee
purifier
flow
purification system
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.)
Ceased
Application number
PCT/IB2017/053518
Other languages
English (en)
Inventor
Konstantin Chuntonov
Boris VERBITSKY
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.)
Mechem Lab Ltd
Original Assignee
Mechem Lab Ltd
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 PCT/IB2017/053325 external-priority patent/WO2018185535A1/fr
Application filed by Mechem Lab Ltd filed Critical Mechem Lab Ltd
Priority to US16/603,218 priority Critical patent/US20210077945A1/en
Publication of WO2018185536A1 publication Critical patent/WO2018185536A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • 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
    • B01D53/02—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 adsorption, e.g. preparative gas chromatography
    • B01D53/04—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 adsorption, e.g. preparative gas chromatography with stationary adsorbents
    • B01D53/0407—Constructional details of adsorbing systems
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2253/00—Adsorbents used in seperation treatment of gases and vapours
    • B01D2253/10—Inorganic adsorbents
    • B01D2253/112—Metals or metal compounds not provided for in B01D2253/104 or B01D2253/106
    • B01D2253/1122—Metals
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2259/00—Type of treatment
    • B01D2259/40—Further details for adsorption processes and devices
    • B01D2259/40083—Regeneration of adsorbents in processes other than pressure or temperature swing adsorption
    • B01D2259/40084—Regeneration of adsorbents in processes other than pressure or temperature swing adsorption by exchanging used adsorbents with fresh adsorbents

Definitions

  • the given invention refers to the field of purification of stream gases, in particular, to gas purifiers with a purity indicator.
  • the modified gas purifier according to the present invention has a number of improvements of both design and functional character.
  • a vacuum charging of the vessel with reactive powder which required special pressing and welding equipment, is replaced for an easier and more convenient method of filling / sealing in the flow of argon at the small excess of the pressure over the atmospheric pressure.
  • the known vessel having a filling tube welded to it is replaced with an extended metallic pipe, which can be coiled into a spiral coil. This reduces production costs and also increases the lifetime of the getter powder.
  • an improved gas purifier as distinct from the prior art provides the users with the information about the current purity of the end gas product.
  • a flow meter the readings of which are calibrated in the units of purity of the gas coming out from the gas purifier, serves as a purity indicator.
  • gas purifier of the present invention may be provided by modification of known gas purifiers with low costs and effort.
  • the techniques disclosed herein are applicable to a broad field of gas purification applications.
  • Fig. 1(a) is a scheme of charging (filling) a vessel with reactive powder according to one embodiment of the present disclosure.
  • Fig. 1(b) is a scheme of charging (filling) a vessel with reactive powder according to a state of the art technique.
  • Fig.2 shows the design of the modified gas purifier according to one embodiment of the present disclosure.
  • Fig.3 shows a dependency of the quality of the gas product on the quantity of the treated gas according to one embodiment of the present disclosure.
  • Fig.4 shows a sorption system according to one embodiment of the present disclosure.
  • a gas purifier e.g. one using reactive powder for gas purification, has a gas tight vessel, an inlet and an outlet with a filter and a valve each, and a charging port, which has to be tightly closed after filling.
  • the procedure of charging the vessel with powder and the further operations for sealing the vessel are shown in Fig. l.
  • the vessel is filled with powder coming from the vacuum mill [US Patent 9586173] along the metallic pipe (see filling line in Fig.1(b)), which is connected with the vessel by welding. Valves 1 and 3 at this are closed. After filling the powder the pipe is cut off without breaking the vacuum by pinching [Less-Common metals, 83 (1982) 143 - 153]. The place of the formation of a hermetic seal is shown in Fig.l (b) with arrows.
  • the improved gas purifier according to one embodiment of the present disclosure is charged (filled) with powder under argon and is then tightened already in the flow of argon (Fig. l, a).
  • the metallic pipe going from the vacuum mill (dotted line on top of Fig. 1 (a)) is connected to the vessel via Tee 2 (e.g. Tee Type Safety Head from HiP, Union Tee from Swagelok, etc.).
  • Tee 2 e.g. Tee Type Safety Head from HiP, Union Tee from Swagelok, etc.
  • Two other ends of Tee 2 are connected to the gas line, one via valve 1 and another one via the vessel and valve 3. That is, the upper end of the Tee serves for filling of the powder fed from the mill.
  • the vacuum mill Before milling the ingot, the vacuum mill is filled with argon through valve l(while valve 3 is closed) till the pressure of -lbar. Then, the powder is produced and pours along the metallic pipe and Tee 2 into the vessel. As soon as the vessel is filled with the powder, argon is fed into the system gas purifier / mill through valve 1 creating a small gas stream towards the mill.
  • elbow gas purifiers is the developed in application to it method of defining the purity of the end gas product.
  • the problem of detecting impurities of the gas stream needs here a different engineering solution and a different theoretical basis than in the case of, e.g. reactive sorbers.
  • the authors found that the best instrumental basis for monitoring the quality of the purified gas will be a gas flow meter installed in the gas line with the gas purifier as will be set forth in the disclosure of one preferred embodiment below.
  • concentration c of impurity Y in the exit of the tube grows with the amount of flown through it gas (Fig.3).
  • valve 1 a valve, 2 - Tee, 3 - a valve; the reference to " filling line” should be understood only as an indication of the position of the metallic pipe, along which the powder is fed from the mill to the vessel; after charging the powder into the vessel the pressure of argon is increased through valve 1 till the small excess over the outside pressure , metallic pipe is disconnected from Tee 2 and the latter is closed by a plug or a cap under the conditions of argon coming out from 2.
  • c the concentration of the impurity in the end product
  • Sorption system 1 an outlet valve, 2 - a Tee, 3 - an inlet valve, 4 - a cap.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Inorganic Chemistry (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Separation Of Gases By Adsorption (AREA)

Abstract

L'invention concerne un purificateur de gaz coudé avec réactif en poudre et un indicateur de pureté à fonctionnement continu de produit gazeux, créé sur la base d'un débitmètre, forment, avec une connexion séquentielle, un système qui est un équipement de nettoyage de gaz d'une nouvelle classe.
PCT/IB2017/053518 2017-04-07 2017-06-14 Purificateur de gaz coudé et son procédé de production Ceased WO2018185536A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US16/603,218 US20210077945A1 (en) 2017-04-07 2017-06-14 Elbow type gas purifier and method of its production

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
US201762601957P 2017-04-07 2017-04-07
US62/601,957 2017-04-07
US201762514936P 2017-06-04 2017-06-04
US62/514,936 2017-06-04
IBPCT/IB2017/053325 2017-06-06
PCT/IB2017/053325 WO2018185535A1 (fr) 2017-04-07 2017-06-06 Appareil de sorption à réactif, système et procédé de purification de gaz

Publications (1)

Publication Number Publication Date
WO2018185536A1 true WO2018185536A1 (fr) 2018-10-11

Family

ID=59388107

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2017/053518 Ceased WO2018185536A1 (fr) 2017-04-07 2017-06-14 Purificateur de gaz coudé et son procédé de production

Country Status (1)

Country Link
WO (1) WO2018185536A1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3853985A (en) * 1970-06-19 1974-12-10 Ceag Concordia Elekrizitats Ag Method of purifying gases containing combustible gaseous or vaporous impurities
US4175037A (en) * 1978-04-10 1979-11-20 Whatman Inc. Process for packing chromatographic columns
US4578193A (en) * 1982-09-06 1986-03-25 Imperial Chemical Industries Plc Chromatography columns
DE102008011480A1 (de) * 2008-02-27 2009-09-03 Siemens Aktiengesellschaft Trennsäulen-Einheit für einen Gaschromatograph und Verfahren zu ihrer Befüllung mit Trennpartikeln
US9586173B2 (en) 2014-08-18 2017-03-07 Mechem Lab Ltd. Activationless gas purifiers with high sorption capacity

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3853985A (en) * 1970-06-19 1974-12-10 Ceag Concordia Elekrizitats Ag Method of purifying gases containing combustible gaseous or vaporous impurities
US4175037A (en) * 1978-04-10 1979-11-20 Whatman Inc. Process for packing chromatographic columns
US4578193A (en) * 1982-09-06 1986-03-25 Imperial Chemical Industries Plc Chromatography columns
DE102008011480A1 (de) * 2008-02-27 2009-09-03 Siemens Aktiengesellschaft Trennsäulen-Einheit für einen Gaschromatograph und Verfahren zu ihrer Befüllung mit Trennpartikeln
US9586173B2 (en) 2014-08-18 2017-03-07 Mechem Lab Ltd. Activationless gas purifiers with high sorption capacity

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
LESS-COMMON METALS, vol. 83, 1982, pages 143 - 153

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