SVIBOR - Project code: 2-15-022

MINISTRY OF SCIENCE AND TECHNOLOGY

Strossmayerov trg 4, HR - 10000 ZAGREB
tel.: +385 1 459 44 44, fax: +385 1 459 44 69
E-mail: ured@znanost.hr

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Project code: 2-15-022

CATALYSTS ACTIVITY, SELECTIVITY AND DEACTIVATION

Main researcher: ZRNČEVIĆ, STANKA (55196)

Assistants

GOMZI, ZORAN (13886)
KOTUR, ELKE (125521)
TOMAŠIĆ, VESNA (179216)

Type of research: basic
Duration from: 01/01/91. to 12/31/93.

Papers on project (total): 35
Papers on project quoted in Current Contents: 4

Institution name: Fakultet kemijskog inženjerstva i tehnologije, Zagreb (125)
Department/Institute: Department of Chemical Reaction Engineering and Catalysis
Address: Savska c. 16
City: 10000 - Zagreb, Croatia

Communication: Fax: 385 (0)455 0725; Phone: 385 (0)272 318

Summary: The influence of reaction parameters, mode of catalyst preparation and pretreatment, as well as chemical composition and transport resistance on the catalyst activity, selectivity and deactivation will be examined. The kinetic experiments, activity test and poisoning experiments will be carried out in differential and integral laboratory reactors. Mathematical models for process simulation based on the kinetics and mechanisms of the catalytic poisoning reactions will be proposed.

Keywords: talyst Preparation, Activity, Selectivity, Catalyst Preparation, Activity, Selectivity, Deactivation, Diffusional Limitations, Thioresistance

Research goals: On the eve of the 21st century, catalytic technologies will gradually become important, not only for chemical or petrochemical industry, but also for other industries, where they are not so widely applied today. Since catalysts make it possible to considerably reduce production costs and, as a rule, improve quality of the products,catalyst study and production are rapidly developing. Chemical composition alone is not a sufficient quide for predicting the activity of a catalyst. In many cases the physical characteristics of the catalyst, such as the surface area,particle size, pore size and crystal structure, determine its activity and selectivity for specific reaction. They have also been considered to improve the life time of catalyst, i.e. to prevent its deactivation. Studying chemical and physical characteristics of commercial and newly prepared catalysts, kinetics and mechanisms of the chemical and deactivating processes, effects of the transport resistance on the reaction and deactivatio rate etc. will identify the catalyst design variables in order to obtain more active, selective and stabile catalysts.

Other information about the project.


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