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2 491 981

(13)

(51)

IPC

B01D53/14(2006-01-01)

(21) (22)

Application

2012102719/05, 2012-01-26

(24)

Start date

2012-01-26

(22)

Actual filing date

2012-01-26

(45)

Published

2013-09-10

(72)

Inventor

Nabokov Sergej VladimirovichShkljar Roman LazarevichPetkina Natal'Ja Petrovna

(73)

Holder

Obshchestvo S Ogranichennoj Otvetstvennost'Ju Institut Prirodnykh Gazov I Gazovykh Tekhnologij Gazprom Vniigaz"

METHOD FOR CLEANING DIETHANOLAMINE SOLUTION OF ADMIXTURES Russian patent published in 2013 - IPC B01D53/14

Abstract RU 2491981 C1

FIELD: process engineering.

SUBSTANCE: invention relates to gas cleaning and may be used in gas or oil-refining industry for cleaning absorbers of impurities. Proposed method comprises heating contaminated diethanolamine solution containing the products of diethanolamine destruction and thermostable salts to fractionate produced steam-gas mix in rectifier at 100-110 kPa and vat temperature of 170-180°C with water stripping. Obtained vat residue is fractionated in vacuum rectifier at 1.3-2 kPa and vat temperature of 180-185°C to obtain purified diethanolamine and vat residue containing DEA destruction products and thermostable salts.

EFFECT: higher yield of DEA from contaminated solution.

2 cl, 1 dwg, 4 tbl

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RU 2 491 981 C1

Authors

Nabokov Sergej Vladimirovich

Shkljar Roman Lazarevich

Petkina Natal'Ja Petrovna

Dates

2013-09-10—Published

2012-01-26—Filed