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Listar por autor "Chmielarz, Lucjan"

Mostrando ítems 1-10 de 10

A short review about NOx storage/reduction catalysts based on metal oxides and hydrotalcite-type anionic clays

Jablonska, Magdalena; Palomares Gimeno, Antonio Eduardo; Wegrzyn, Agnieszka; Chmielarz, Lucjan (2014)

[EN] The increasing problem of atmospheric pollution by NOx has resulted in stricter regulations on their emissions. NOx storage/reduction (NSR) is considered as efficient catalytic technology to abate lean-burn NOx. A ...
Catalytic oxidation of organic sulfides by H2O2 in the presence of titanosilicate zeolites

Radko, Marcelina; Rutkowska, Malgorzata; Kowalczyk, Andrzej; Mikrut, Pawel; Swies, Aneta; DÍAZ MORALES, URBANO MANUEL; Palomares Gimeno, Antonio Eduardo; Macyk, Wojciech; Chmielarz, Lucjan (Elsevier, 2020-08-01)

[EN] Titanosilicate ferrierite zeolite (FER) and its delaminated form (ITQ-6), with various Si/Ti molar ratios, were synthetized and tested as catalysts for diphenyl sulfide (Ph2S) and dimethyl sulfide (DMS) oxidation with ...
Catalytic performance of commercial Cu-ZSM-5 zeolite modified by desilication in NH3-SCR and NH3-SCO processes

Rutkowska, Malgorzata; Pacia, I.; Basag, S.; Kowalczyk, A.; Piwowarska, Z.; Duda, M.; Tarach, K.A.; Gora-Marek, K.; Michalik, M.; DÍAZ MORALES, URBANO MANUEL; Chmielarz, Lucjan (Elsevier, 2017-07-01)

[EN] In the presented manuscript an influence of the mesoporosity generation in commercial ZSM-5 zeolite on its catalytic performance in two environmental processes, such as NO reduction with ammonia (NH3SCR, Selective ...
Cu and Fe modified derivatives of 2D MWW-type zeolites (MCM-22, ITQ-2 and MCM-36) as new catalysts for DeNOx process

Rutkowska, Malgorzata; Díaz Morales, Urbano Manuel; Palomares Gimeno, Antonio Eduardo; Chmielarz, Lucjan (Elsevier, 2015-06)

Zeolites with MWW topology (MCM-22, ITQ-2, and MCM-36) exchanged with copper and iron were studied as catalysts for selective catalytic reduction of NO with ammonia. It was shown that delamination and pillaring of layered ...
Ferrierite and Its Delaminated and Silica-Intercalated Forms Modified with Copper as Effective Catalysts for NH3-SCR Process

Swies, Aneta; Kowalczyk, Andrzej; Rutkowska, Malgorzata; DÍAZ MORALES, URBANO MANUEL; Palomares Gimeno, Antonio Eduardo; Chmielarz, Lucjan (MDPI AG, 2020-07)

[EN] The main goal of the study was the development of effective catalysts for the low-temperature selective catalytic reduction of NO with ammonia (NH3-SCR), based on ferrierite (FER) and its delaminated (ITQ-6) and ...
Ferrierite and Its Delaminated Forms Modified with Copper as Effective Catalysts for NH3-SCO Process

Swies, Aneta; Rutkowska, Malgorzata; Kowalczyk, Andrzej; DÍAZ MORALES, URBANO MANUEL; Palomares Gimeno, Antonio Eduardo; Chmielarz, Lucjan (MDPI AG, 2020-11)

[EN] Ferrierites and their delaminated forms (ITQ-6), containing aluminum or titanium in the zeolite framework, were synthetized and modified with copper by an ion-exchange method. The obtained samples were characterized ...
Hierarchically structured ZSM-5 obtained by optimized mesotemplate-free method as active catalyst for methanol to DME conversion

Rutkowska, Malgorzata; Macina, D.; Piwowarska, Z.; Gajewska, M.; Díaz Morales, Urbano Manuel; Chmielarz, Lucjan (Royal Society of Chemistry, 2016)

In the presented studies, a new method for the synthesis of hierarchical porous materials with ZSM-5 zeolite properties was applied. The proposed method is based on the acidification of the zeolite seeds slurry using HCl ...
MCM-22, MCM-36, and ITQ-2 Zeolites with Different Si/Al Molar Ratios as Effective Catalysts of Methanol and Ethanol Dehydration

Marosz, Monika; Samojeden, Bogdan; Kowalczyk, Andrzej; Rutkowska, Malgorzata; Motak, Monika; DÍAZ MORALES, URBANO MANUEL; Palomares Gimeno, Antonio Eduardo; Chmielarz, Lucjan (MDPI AG, 2020-05)

[EN] MCM-22, MCM-36, and ITQ-2 zeolites with the intended Si/Al molar ratios of 15, 25, and 50 were synthetized and tested as catalysts for dehydration of methanol to dimethyl ether and dehydration of ethanol to diethyl ...
NOx storage/reduction catalysts based on Mg/Zn/Al/Fe hydrotalcite-like materials

Jablonska, Magdalena; Palomares Gimeno, Antonio Eduardo; Chmielarz, Lucjan (Elsevier, 2013-09)

Mg/Zn/Al/Fe mixed oxides derived from hydrotalcites synthesized by the coprecipitation method were found to be effective catalysts for the NOx storage/reduction (NSR) process. The activity of this material was improved by ...
Titanium-silicon ferrierites and their delaminated forms modified with copper as effective catalysts for low-temperature NH3-SCR

Swies, Aneta; Kowalczyk, Andrzej; Michalik, Marek; DÍAZ MORALES, URBANO MANUEL; Palomares Gimeno, Antonio Eduardo; Chmielarz, Lucjan (The Royal Society of Chemistry, 2021-03-24)

[EN] Titanium-silicon ferrierites with different Si/Ti ratios and their delaminated forms were modified with copper by ion-exchange. The obtained samples were characterized with respect to their chemical composition ...