Title:
処理方法
Document Type and Number:
Japanese Patent JP2008540104
Kind Code:
A
Abstract:
A continuous method for the treatment of a spent aqueous caustic stream used to scrub a hydrocarbon process stream to remove oxidizable sulfur-containing compounds includes: a. mixing an oxidizing hypochlorous acid stream produced from an aqueous brine solution with the aqueous caustic stream to form a reactive mixed feedstream; b. contacting the reactive mixed feedstream with at least one catalyst to promote the oxidation of the sulfur-containing compounds and the neutralization of the sodium hydroxide; and c. recovering a neutral treated product stream comprising aqueous sodium sulfate, sodium carbonate and sodium chloride that is odorless, non-toxic and environmentally acceptable for discharge into the sea or into a conventional sewage treatment system. Preferably, the hypochlorous acid is produced by an electrolyzer that also produces a (1) hydrogen stream that is directed to a PEM fuel cell to generate at least a portion of the electrical power requirement of the electrolyzer, and (2) water that is combined with fresh sodium hydroxide from the electrolyzer to form a fresh caustic stream for use in scrubbing the hydrocarbon process stream.
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Inventors:
Martiny, Gary, Dee.
Al-Shaharani, Farran, M.
Dabush, Bashir, Oh.
Al-Shaharani, Farran, M.
Dabush, Bashir, Oh.
Application Number:
JP2008511475A
Publication Date:
November 20, 2008
Filing Date:
May 12, 2006
Export Citation:
Assignee:
Saudi Arabian Oil Company
International Classes:
C02F1/76; B01J23/755; B01J23/85; C02F1/00; C02F1/46; C25B1/04; H01M8/00; H01M8/06
Domestic Patent References:
| JP2001113121A | 2001-04-24 | |||
| JP2000126773A | 2000-05-09 |
Attorney, Agent or Firm:
Mizuno Katsufumi
Masayuki Kishida
Hiroshin Takano
Hiroshi Suzawa
Masayuki Kishida
Hiroshin Takano
Hiroshi Suzawa