Title:
An additive agent and a method for the calcium removal from calcium-naphthenate content crude oil
Document Type and Number:
Japanese Patent JP5970545
Kind Code:
B2
Abstract:
There is provided an additive and method for removal of calcium from crude oil or its blends containing calcium naphthenate at low pH as well as at high pH varying from 5 to 11, preferably from 6 to 11, more preferably from 7 to 11, wherein the additive is glyoxal and said pH is of the wash water for crude oil processing systems. There is also provided an additive and method for removal of calcium from crude oil or its blends containing calcium naphthenate, wherein crude oil is treated with wash water containing alkaline medium selected from the group comprising sodium hydroxide (NaOH or caustic), ammonia or amine compound, or mixture thereof, and wherein pH of the wash water or of the processing mixture in the desalter varies from 5 to 11, preferably from 6 to 11, preferably from 7 to 11, characterized in that the additive is glyoxal and the crude oil or its blend is treated with glyoxal.
Inventors:
Sabra Maniyam, Mahesh
Application Number:
JP2014518070A
Publication Date:
August 17, 2016
Filing Date:
June 26, 2012
Export Citation:
Assignee:
DORF KETAL CHEMICALS (INDIA) PRIVATE LIMITED
International Classes:
C10G29/24; C10G31/08
Domestic Patent References:
| JP63159493A | ||||
| JP2009235412A | ||||
| JP2011510151A | ||||
| JP2006249419A | ||||
| JP4215814A | ||||
| JP3119092A | ||||
| JP8176558A | ||||
| JP63061087A |
Attorney, Agent or Firm:
Tadashige Ito
Tadahiko Ito
Shinsuke Onuki
Tadahiko Ito
Shinsuke Onuki
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