Wyniki wyszukiwania - BazTech

Ograniczanie wyników

Znaleziono wyników: 2

Liczba wyników na stronie

Wyniki wyszukiwania

Wyszukiwano:
w słowach kluczowych: soda kaustyczna

Sortuj według:

Ogranicz wyniki do:

Research on products of simultaneous removal of SO2 and NOx from flue gas by ozonation and alkaline absorption

Głomba M., Hałat A., Kordylewski W., Łuszkiewicz D.

Environment Protection Engineering

2016

Vol. 42, nr 2

125--136

The results of laboratory scale research have been presented on the effects of ozonation of carrier gas containing NOx and SO2 on by-products trapped in Dreschel washers with solution of sodium hydroxide. The controlling parameter in this process was the ozonation intensity determined by the molar ratio O3/NOx. The measured by-products in a scrubber were SO32- , SO42- , NO2- and NO3- ions. It has been shown that ozonation of flue gas favours oidation of nitrites to nitrates and sulfites to sulfates in alkaline solution. Some of these results were confirmed in a pilot scale studies. Pilot plant was located in Wroclaw CHP (Combined Heat and Power), which provided flue gas for testing at a rate of 200 m3/h from the OP-430 boiler. Exhaust gases were ozonized and captured simultaneously with SO2. Sodium hydroxide was used in a pilot scale as an absorbent.

Wodorotlenek sodu – metoda oznaczania

Surgiewicz J.

Podstawy i Metody Oceny Środowiska Pracy

2009

Nr 1 (59)

189--194

Metoda polega na pobraniu związku na filtr nitrocelulozowy, mineralizacji filtra i oznaczeniu sodu metodą absorpcyjnej spektrometrii atomowej w płomieniu acetylen-powietrze. Oznaczalność metody wynosi 0,024 mg/m3.

The method is based on stopping selected sodium hydroxide on a membrane filter, mineralizing the sample with concentrated nitric acid and preparing the solution for analysis in diluted nitric acid. Sodium hydroxide in the solution is determined as sodium with flame atomic absorption spectrometry. The detection limit of determined sodium hydroxide for this method is 0.024 mg/m.