Title:
高められた還流流を用いた炭化水素の回収法
Document Type and Number:
Japanese Patent JP5185316
Kind Code:
B2
Abstract:
A process and apparatus for the recovery of ethane and heavier components from a hydrocarbon feed gas stream. Feed gas stream is cooled and separated into a vapor stream and a condensed stream. Vapor stream is divided into a first and a second gas streams. First gas stream is expanded and sent to a fractionation tower. Second gas stream is supplied to an absorber tower. At least a part of the first liquid stream is cooled and sent to the absorber. Absorber column produces a lean vapor stream and a second condensed stream. Lean vapor stream is cooled and sent to the fractionation tower. Second condensed stream is subcooled and supplied to the fractionation tower. Temperatures and pressures of the streams and columns are maintained to recover a major portion of ethane and heavier hydrocarbon components as bottom product, and produce at the fractionation tower overhead, a residue gas stream.
Inventors:
Foglietta, George, H.
Patel, Sanjib, N.
Patel, Sanjib, N.
Application Number:
JP2010093090A
Publication Date:
April 17, 2013
Filing Date:
April 14, 2010
Export Citation:
Assignee:
Lamas Technology, Inc.
International Classes:
F25J3/02; C07C7/04; C07C9/04; C07C9/06; C10G7/00; C10L3/06
Domestic Patent References:
| JP2000507612A | ||||
| JP2004530094A | ||||
| JP2004530858A | ||||
| JP2004536176A | ||||
| JP6129671A | ||||
| JP5240576A | ||||
| JP5822872A | ||||
| JP2004534116A |
Foreign References:
| WO2003095913A1 | ||||
| US4322225 | ||||
| US6244070 |
Attorney, Agent or Firm:
Hideto Asamura
Hajime Asamura
Katsunori Ando
Hajime Asamura
Katsunori Ando