VODJA / HEAD
Akademik prof. dr. Janez Levec
RAZISKOVALCI / RESEARCHERS Dr. Jurkica Batista
Dr. Gorazd Ber~i~
Dr. Stanko Ho~evar Dr. Henrik Ku{ar Dr. Albin Pintar
MLADI RAZISKOVALCI / YOUNG RESEARCHERS Matej Komel
Luka Zevnik
Laboratorij za katalizo in reakcijsko in`enirstvo
Laboratory for Catalysis and Chemical Reaction Engineering
PODRO^JA DEJAVNOSTI
[tudij kemijskih pretvorb razli~nih izhodnih spojin v `elene produkte v homogenih in heterogenih kataliziranih ali nekataliziranih sistemih. Teoreti~na dolo~itev termodinamskih mo`nosti za potek pretvorb in eksperimentalna dolo~itev kineti~nih parametrov poteka teh pretvorb. Ker v praksi ve~ina fizikalnih in kemijskih pretvorb poteka v ve~faznih sistemih, je velik del raziskav namenjenih {tudiju interakcij kemijske kinetike s transportnimi pojavi.
Raziskave potekajo s poudarkom na:
- oksidaciji organskih polutantov v mem-branskih reaktorjih,
- optimizaciji hidrodinamskih pogojev obrato-vanja eno- in ve~ cevnih membranskih kontaktorjev,
- interpretaciji eksperimentalnih meritev na podlagi matemati~nega modeliranja in optimizacije parametrov,
- razvoju Pd-Cu bimetalnih in Pd mono-metalnih katalizatorjev, uporabljenih v integriranem procesu za denitrifikacijo podtalnice,
RESEARCH ACTIVITIES
Study of the chemical transformation of reac-tants to desirable products in homogeneous and heterogeneous catalytic or non-catalytic systems. Theoretical determination of thermo-dynamic possibility for certain transformation and experimental determination of kinetic pa-rameters for these transformations. In practice most physical and chemical transformations occur in the multiphase systems, therefore re-search efforts are focused on the study of the interaction between intrinsic kinetics and trans-port phenomena. The emphasys of the research is put on:
- catalytic wet oxidation of organics dissolved in wastewater carried out in membrane re-actors;
- optimization of process hydrodynamic con-ditions in single- and multi-channel mem-brane contactors;
- interpretation of experimental data through mathematical modelling and optimization of parameters;
- development of Pd-Cu bimetallic and Pd
- kineti~nim in mehanisti~nim {tudijam heterogeno kataliziranih reakcij z in-situ FTIR/
ATR metodo,
- {tudiju kinetike in mehanizmov kataliziranih reakcij v procesih proizvodnje in ~i{~enja vodika ter na~rtovanju kompaktnega proce-sorja za proizvodnjo vodika iz primarnih goriv (fosilnih in obnovljivih) za PEM gorivne celice, - sintezi ter strukturni in elektrokemi~ni karakterizaciji novih anodnih katalizatorjev, odpornih na CO, za uporabo v PEM gorivnih celicah,
- sintezi ter strukturni elektrokemi~ni karak-terizaciji nanokompozitnih protonsko prevod-nih polimerprevod-nih membran za PEM gorivne celice.
BIBLIOGRAFIJA
6 izvirnih znanstvenih ~lankov 1 samostojni znanstveni sestavek v
monografiji
2 objavljena znanstvena prispevka na konferencah
5 objavljenih povzetkov znanstvenih prispevkov na konferencah 1 patentna prijava
1 predavanje na tuji univerzi
2 prispevka na konferencah brez natisa 2 elaborata, pred{tudiji, {tudiji 1 magisterij
2 uredni{tvi revij
DOSE@KI V LETU 2006
- Na primeru modelne reakcije (oksidacije vodne raztopine mravlji~ne kisline na Pt katalizatorju, nane{enem na kerami~ni cevni membrani) smo za {iroko obmo~je obrato-valnih pogojev razvili matemati~ni model za napoved koncentracijskih profilov reaktantov in debelino reakcijske cone v katalitskem trifaznem membranskem reaktorju. COBI-SS.SI-ID 3428122
- Z uporabo dveh lo~enih katalitskih reaktorjev, napolnjenih s Pd-Cu oziroma Pd katali-zatorjem, smo modificirali procesno shemo
monometallic catalysts for integrated proc-ess of underground drinking water deni-trification;
- kinetic and mechanistic studies of heteroge-neously catalyzed reactions with in situ FTIR/
ATR method;
- study of kinetics and mechanisms of cata-lyzed reactions in the hydrogen production and cleaning processes from primary fuel sources (fossil and renewable) for PEM fuel cells;
- synthesis, structural and electrochemical char-acterization of new CO-tolerant anode cata-lysts for PEM fuel cells;
- synthesis, structural and electrochemical char-acterization of proton conducting nano-composite polymer membrane for PEM fuel cells.
BIBLIOGRAPHY
6 Original Scientific Articles
1 Independent Scientific Component Part in a Monograph
2 Published Scientific Conference Contribu-tions
5 Published Scientific Conference Contribu-tion Abstracts
1 Patent Application
1 Invited Lectures at Foreign University 2 Unpublished Conference Contributions 2 Treatises, Preliminary Studies, Studies 1 Master’s Thesis
2 Journal Editorships
RESULTS IN 2006
- On the basis of catalytic wet-air oxidation of aqueous solutions of formic acid investigated as a model reaction over Pt-doped ceramic membranes in a wide range of operating conditions, a comprehensive mathematical model for the prediction of both concentra-tion profiles of reactants and the thickness of reaction zone in the catalytic membrane reactor was developed. COBISS.SI-ID 34-28122
Laboratorij za katalizo in reakcijsko in`enirstvo
Laboratory for Catalysis and Chemical Reaction Engineering
integriranega procesa za odstranjevanje prese`nih mno`in nitratnega iona iz pitne vode, s ~imer se je drasti~no zmanj{ala produkcija amonijevega iona kot stranskega produkta reakcije. COBISS.SI-ID 3408410 - Dolo~ili smo kinetiko reakcije vodnega plina
(water gas shift reaction, WGSR) na razli~no sintetiziranih nanostrukturnih CuxCe1-xO2-y katalizatorjih v stacionarnih pogojih z razli~nimi sinteti~nimi izhodnimi me{anicami plinov, ki simulirajo sestavo plinov po reformingu primarnega goriva (metana oziroma premoga) in pokazali, kako mo~no vplivajo pogoji sinteze katalizatorjev na njihovo strukturo in morfologijo ter posle-di~no na njihovo aktivnost in selektivnost v dani reakciji. COBISS.SI-ID 3569946.
- Objavili smo samostojno poglavje v u~beniku
- A modified process scheme of the integrated ion-exchange/catalytic denitrification process for the removal of excessive quantities of ni-trates from drinking water was proposed by introducing separate reactor units filled with Pd-Cu bimetallic and Pd monometallic cata-lysts, respectively, which drastically reduces the production of ammonium ions as a by-product. COBISS.SI-ID 3408410
- Kinetic model of water gas shift reaction (WGSR) over a nanostructured CuxCe1-xO2-y catalysts prepared with different methods was determined based on measurements under stationary reaction conditions with simulated reformer outlet gas mixtures (ob-tained from methane or coal). It was con-firmed that conditions for catalysts prepara-tion decisively influence on the structure and
SLIKA:
Ra~unalni{ko vodeni kontinuirni reaktorski sistem
»Microactivity Reference« za {tudij dvo- in trifaznih katalitskih reakcij pri temperaturah do 750 stopinj Celzija in tlakih do 100 bar (PID Eng&Tech, [panija)
FIGURE:
Computerized continuous-flow reactor system
»Microactivity Reference« for studies of two- and three-phase catalytic reactions at temperatures up to 750 degrees C and pressures up to 100 bar (PID Eng&Tech, Spain)
(S. Ho~evar) za podiplomski {tudij katalize pod naslovom »Surface and Nanomolecular Catalysis« (R. Richards, ur.), CRC Taylor &
Francis, Boca Raton, FL, USA, 2006. CO-BISS.SI-ID 3486490
SODELOVANJE Z INDUSTRIJSKIMI IN DRUGIMI PARTNERJI
- Za Ministrstvo za obrambo RS (MORS) smo opravili dve izvedljivostni {tudiji s podro~ja vodikovih tehnologij in gorivnih celic ({tev.
pog. 4300-958/2006-1, nosilec: dr. Gorazd Ber~i~; {tev. pog. 4300-957/2006-1, nosilec:
dr. Stanko Ho~evar);
- za slovensko farmacevtsko dru`bo smo izvedli evaluacije in optimizacije razli~nih indus-trijskih procesov (npr. industrijskega procesa katalitske hidrogenacije; nosilec: prof. dr.
Janez Levec).
MEDNARODNO SODELOVANJE
- »Polymer Electrolytes and Non Noble Metal Electrocatalysts for High Temperature PEM Fuel Cells« v okviru EU 6 FP programa »Inte-grating and Strengthening of European Re-search Area« STREP projekt NMP3-CT-2006-033228 (Akronim: APOLLON-B). Projekt traja od 01. 10. 2006 do 01. 10. 2009, koor-dinator projekta na KI je dr. Stanko Ho~evar.
POMEMBNI IN[TRUMENTI IN OPREMA - Ra~unalni{ko voden teko~inski kromatograf
(HP),
- ve~ plinskih kromatografov s TCD in FID detektorjem (HP),
- analizatorja vsebnosti ogljika v teko~ih in trdnih vzorcih (Tekmar/Dohrmann), - ve~ me{alnih {ar`nih, kapalnih in cevnih
reaktorjev s strnjenim slojem opremljenih s sistemi za nadzor in zajemanje podatkov, - 600 W sistem za testiranje gorivnih celic z
ra~unalni{kim vodenjem (HP VEE OneLab), - LabMax-ReactIR 1000 me{alni {ar`ni reaktor
s sistemom za IR analizo reakcije v realnem
~asu (Mettler Toledo),
morphology of the catlysts and consequently on their activity and selectivity in given reac-tion. COBISS.SI-ID 3569946
- A chapter was published (S. Ho~evar) in the book for gradute course under the title »Sur-face and Nanomolecular Catalysis« (R.
Richards, Ed.), CRC Taylor & Francis, Boca Raton, FL, USA, 2006. COBISS.SI-ID 3486490
COLLABORATION WITH COMPANIES - Two feasibility studies were performed for
MoD RS (MORS) in the field of hydrogen tech-nology and fuel cells (CT 4300-958/2006-1, PI dr. Gorazd Ber~i~; CT 4300-957/2006-1, PI dr. Stanko Ho~evar).
- For a Slovenian pharmaceutical company the industrial scale hydrogenation process was optimised (PI prof. dr. Janez Levec).
INTENATIONAL COLLABORATION
- »Polymer Electrolytes and Non Noble Metal Electrocatalysts for High Temperature PEM Fuel Cells« STREP Project in EU 6 FP »Inte-grating and strengthening of European Re-search Area«, NMP3-CT-2006-033228 (Ac-ronym: APOLLON-B). Project lasts from 01.10.2006 to 01.10.2009; Project coordi-nator within NIC is Dr. Stanko Ho~evar.
IMPORTANT INSTRUMENTS AND EQUIP-MENT
- HPLC + ChemStation (HP)
- several GCs with TCD and FID detector (HP) - TOC analyzers in liquid and solid samples
(Tekmar/Dohrmann)
- several batch CST, trickle-bed and fixed-bed laboratory reactors with data acquisition and control units
- 600 W fuel cell test station with HP VEE OneLab software-based data acquisition and control unit
- LabMax-ReactIR 1000 reactor and real-time reaction analysis system (Mettler Toledo)
Laboratorij za katalizo in reakcijsko in`enirstvo
Laboratory for Catalysis and Chemical Reaction Engineering
- avtomatizirani sistem za karakterizacijo heterogenih katalizatorjev (Micromeritics, model Autochem II 2920),
- masni spektrometer (Pfeiffer Vacuum, model Thermostar),
- ra~unalni{ko vodeni, kontinuirni reaktorski sistem »Microactivity Reference« za {tudij dvo-in trifaznih katalitskih reakcij pri temperaturah do 750 stopinj Celzija in tlakih do 100 bar (PID Eng&Tech, [panija).
IZOBRA@EVANJE IN OBISKI / GOSTOVANJA V letu 2006 je bilo zaklju~eno eno magistrsko delo (M. Komel: Numeri~no dolo~evanje parametrov prenosa toplote v strnjenih slojih, magistrsko delo, Ljubljana. ¢M. Komel¥, 2006.
XVII, 128 f., ilustr. ¢COBISS.SI-ID 27747077¥, mentor prof. dr. Janez Levec).
- Automated system for heterogeneous cata-lysts characterization (Micromeritics, model Autochem II 2920)
- Mass spectrometer (Pfeiffer Vacuum, model Thermostar)
- Computerized continuous-flow rector system
»Microactivity Reference« for studies of two-and three-phase catalytic reactions at tem-peratures up to 750 degrees C and pressures up to 100 bar (PID Eng&Tech, Spain)
EDUCATION AND IMPORTANT VISITS One master degree thesis (M. Komel, “Numeri-cal determination of heat transfer prameters in packed beds”: M.Sc. Thesis, Supervisor: Profes-sor Janez Levec ¢COBISS.SI-ID 27747077¥) was concluded in 2006.