The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 27, 2011
Filed:
Jan. 27, 2010
Alan G. Marshall, Tallahassee, FL (US);
Priyanka Juyal, Tallahassee, FL (US);
Mmilili M. Mapolelo, Tallahassee, FL (US);
Ryan P. Rodgers, Tallahassee, FL (US);
Alan G. Marshall, Tallahassee, FL (US);
Priyanka Juyal, Tallahassee, FL (US);
Mmilili M. Mapolelo, Tallahassee, FL (US);
Ryan P. Rodgers, Tallahassee, FL (US);
Florida State University Research Foundation, Inc., Tallahassee, FL (US);
Abstract
A method for quantifying the presence of naphthenic acids in a hydrocarbon-comprising liquid that includes: contacting a hydrocarbon-comprising liquid with gaseous ammonia; isolating a reaction product produced by the contacting step; and analyzing the reaction product for the presence of naphthenates using a mass spectrometry technique. The naphthenic acids known to form commercial naphthenate deposits can be (i) ions of tetraprotic carboxylic acids having molecular weights ranging from 1225 to 1270 Daltons, (ii) n-alkyl or branched carboxylic acids having molecular weights ranging from 250 to 650 Daltons, or (iii) both.