JPS6487506A - Method for purifying low-purity crude gaseous helium - Google Patents

Method for purifying low-purity crude gaseous helium

Info

Publication number
JPS6487506A
JPS6487506A JP14279987A JP14279987A JPS6487506A JP S6487506 A JPS6487506 A JP S6487506A JP 14279987 A JP14279987 A JP 14279987A JP 14279987 A JP14279987 A JP 14279987A JP S6487506 A JPS6487506 A JP S6487506A
Authority
JP
Japan
Prior art keywords
adsorption
tower
gas
delivery port
pressure
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
JP14279987A
Other languages
Japanese (ja)
Other versions
JP2540042B2 (en
Inventor
Yasuhiro Tsuchida
Hideki Nakamura
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.)
Hoxan Corp
Hoxan Co Ltd
Original Assignee
Hoxan Corp
Hoxan Co 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
Application filed by Hoxan Corp, Hoxan Co Ltd filed Critical Hoxan Corp
Priority to JP62142799A priority Critical patent/JP2540042B2/en
Publication of JPS6487506A publication Critical patent/JPS6487506A/en
Application granted granted Critical
Publication of JP2540042B2 publication Critical patent/JP2540042B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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  • Separation Of Gases By Adsorption (AREA)

Abstract

PURPOSE:To improve the yield of purified gaseous He by sending air under pressure instead of crude gaseous He at an opportune time before the breakthrough in the pressure adsorption stage in the ordinary-temp. pressure-swinging method. CONSTITUTION:A single-tower purifier B is used, for example, crude gaseous He G1 is introduced under pressure into an adsorption tower 3 from a supply port 4 as the pressure adsorption stage, the air component is adsorbed and removed by an adsorbent 5, and purified gaseous He G2 is obtained. An adsorption zone Z at the boundary between the bed X wherein adsorption is finished and the bed Y wherein adsorption is not finished migrates toward a delivery port 6. When the zone Z reaches the delivery port 6 and the purity of the gas G2 begins to decrease, the state is called breakthrough. Air is introduced under pressure instead of the gas G1 into the tower 3 at a time when the capability of purifying the gas G1 still remains in the tower 3, namely before the break- through. Consequently, the gas G1 remaining in the tower 3 can be pushed out from the delivery port 6 as the gas G2, and the yield is improved.
JP62142799A 1987-06-08 1987-06-08 Purification method of low-purity crude helium gas Expired - Fee Related JP2540042B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62142799A JP2540042B2 (en) 1987-06-08 1987-06-08 Purification method of low-purity crude helium gas

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62142799A JP2540042B2 (en) 1987-06-08 1987-06-08 Purification method of low-purity crude helium gas

Publications (2)

Publication Number Publication Date
JPS6487506A true JPS6487506A (en) 1989-03-31
JP2540042B2 JP2540042B2 (en) 1996-10-02

Family

ID=15323897

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62142799A Expired - Fee Related JP2540042B2 (en) 1987-06-08 1987-06-08 Purification method of low-purity crude helium gas

Country Status (1)

Country Link
JP (1) JP2540042B2 (en)

Also Published As

Publication number Publication date
JP2540042B2 (en) 1996-10-02

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Legal Events

Date Code Title Description
LAPS Cancellation because of no payment of annual fees