Title:
膜分離プロセス
Document Type and Number:
Japanese Patent JP2006507385
Kind Code:
A
Abstract:
A high purity stream of methane can be obtained from crude natural gas, especially exhaust gas from waste landfills, by a process that includes first removing moisture, then feeding the dried crude gas mixture to a gas-liquid contact absorber to strip heavy hydrocarbon compounds in a primarily carbon dioxide by product stream. Methane enriched gas from the absorber is separated in a membrane separation unit which provides permeate enriched in carbon dioxide that is recycled to the absorber and a purified product stream of methane.
Inventors:
Anderson, Charles El.
Carode, Sandeep K.
Carode, Sandeep K.
Application Number:
JP2004553026A
Publication Date:
March 02, 2006
Filing Date:
November 14, 2003
Export Citation:
Assignee:
Rail Liquide-Societe Anonym a Directoire et Conseille de Surveillance Pool Retude e Rex Prowation de Procede Georges Claude
International Classes:
C10L3/06; B01D53/14; B01D53/22; B01D61/58; C07C7/00; C07C7/11; C07C7/144; C07C9/04; C10L3/10
Attorney, Agent or Firm:
Takehiko Suzue
Satoshi Kono
Makoto Nakamura
Kurata Masatoshi
Takashi Mine
Yoshihiro Fukuhara
Toshio Shirane
Sadao Muramatsu
Nobuhisa Nogawa
Ryo Hashimoto
Tetsuya Kazama
Satoshi Kono
Makoto Nakamura
Kurata Masatoshi
Takashi Mine
Yoshihiro Fukuhara
Toshio Shirane
Sadao Muramatsu
Nobuhisa Nogawa
Ryo Hashimoto
Tetsuya Kazama