Complex oscillatory dynamics in a pH oscillator

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22340%2F06%3A00016833" target="_blank" >RIV/60461373:22340/06:00016833 - isvavai.cz</a>

Result on the web

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DOI - Digital Object Identifier

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Result language

angličtina

Original language name

Complex oscillatory dynamics in a pH oscillator

Original language description

The reaction of hydrogen peroxide, thiosulfate and sulphuric acid catalyzed by cupric ions (HPTCu reaction1) displays a rich nonlinear behaviour marked by multiple steady states, excitability and oscillations in a continuous-flow stirred tank reactor (CSTR) operated under isothermal conditions. The HPTCu reaction is a so called pH oscillator because the oscillations observed during experiments exhibit large changes in pH value, typically in the range of pH between 4 and 6. The reaction displays not onlysimple oscillations but also complex oscillations. It has been observed in earlier work that a large peak may be followed by a series of small-amplitudes oscillations and that the length of the phase of small oscillations may vary in a regular or irregular fashion. However, these measurements have not been made with the aim of systematic study of the transitions between various regular and irregular dynamical regimes. The main purpose was to establish that the system is oscillatory. At

Czech name

Složitá dynamika oscilací v pH oscilátoru

Czech description

Reakce peroxidu vodíku s thiosíranem v kyselém prostředí za přítomnosti mědi vykazuje velmi složité chování. Pokud je celá reakce prováděna v průtočném míchaném reaktoru za konstantní teploty, lze pozorovat různé dynamické režimy pouhým měřením hodnoty pH, která se v průběhu času výrazně mění. Cílem práce je analýza složítého dynamického chování této reakce.

Type

D - Article in proceedings

CEP classification

CI - Industrial chemistry and chemical engineering

OECD FORD branch

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Project

Result was created during the realization of more than one project. More information in the Projects tab.

Continuities

Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year

2006

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection

Full text 17th International Congress of Chemical and Process Engineering

ISBN

80-86059-45-6

ISSN

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e-ISSN

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Number of pages

7

Pages from-to

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Publisher name

ČSCHI

Place of publication

Praha

Event location

Praha

Event date

Aug 27, 2006

Type of event by nationality

WRD - Celosvětová akce

UT code for WoS article

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