Patent · US Active

Method and apparatus for analyzing alkalinity conditions in aqueous liquids

US9347922B2 · kind B2 · utility

2Cited by

2References

8Claims

0Family size

Assignee

Institutt for Energiteknikk · NO

Inventors

Arne Dugstad · Oslo, NO
Marion Seiersten · Oslo, NO

Key dates

Filing date	May 11, 2012
Grant date	May 24, 2016
Priority date	—
Expiry date	Nov 13, 2032

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC02F2209/07
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

Method for analyzing the alkalinity conditions in aqueous liquids, comprising: sampling a known amount of the aqueous liquid and placing it in a container of known volume, measuring pH in the sampled liquid and pressure in the container, adding a known amount of CO2 to the sampled liquid, and measuring pH in the sampled liquid and the pressure in the container, and finally calculating the total alkalinity based on the values from the performed measurements. An apparatus for conducting the method is also described as well as a method for controlling chemistry of a glycol containing liquid in a system for recovery of glycol.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.