Title:
炭化水素ガス流から酸性ガスを除去する極低温システム
Document Type and Number:
Japanese Patent JP5791609
Kind Code:
B2
Abstract:
A system for removing acid gases from a raw gas stream is provided. The system includes a cryogenic distillation tower. The cryogenic distillation tower has a controlled freezing zone that receives a cold liquid spray comprised primarily of methane. The tower receives and then separates the raw gas stream into an overhead methane gas stream and a substantially solid material comprised on carbon dioxide. The system includes a collector tray below the controlled freezing zone. The collector tray receives the substantially solid material as it is precipitated in the controlled freezing zone. The system also has a filter. The filter receives the substantially solid material and then separates it into a solid material comprised primarily of carbon dioxide, and a liquid material comprising methane. The solid material may be warmed as a liquid and sold, while the liquid material is returned to the cryogenic distillation tower.
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Inventors:
Callinene John Tim
Northrop Paul Scott
Northrop Paul Scott
Application Number:
JP2012528795A
Publication Date:
October 07, 2015
Filing Date:
July 22, 2010
Export Citation:
Assignee:
Exxon Mobil Upstream Research Company
International Classes:
F25J3/02; C10G5/06; C10L3/10; F25J3/00; F25J3/08
Domestic Patent References:
| JP2010507703A | ||||
| JP2002508057A | ||||
| JP2005519153A |
Foreign References:
| WO2008091317A1 | ||||
| WO2008049830A1 | ||||
| US20020174678 | ||||
| US20090266107 |
Attorney, Agent or Firm:
Koichi Tsujii
Sadao Kumakura
Disciple Maru Ken
Ino Sato
Mitsuru Matsushita
Ichiro Kurasawa
Sadao Kumakura
Disciple Maru Ken
Ino Sato
Mitsuru Matsushita
Ichiro Kurasawa