Searched for: author:"Yarulina, I."
(1 - 13 of 13)
document
Vollmer, I. (author), Kosinov, N. (author), Szecsenyi, Agnes (author), Li, G. (author), Yarulina, I. (author), Abou-Hamad, Edy (author), Gurinov, Andrei (author), Ould-Chikh, Samy (author), Aguilar-Tapia, Antonio (author), Hazemann, Jean-Louis (author), Pidko, E.A. (author), Hensen, Emiel J M (author), Kapteijn, F. (author), Gascon Sabate, J. (author)
The active sites on the methane dehydroaromatization (MDA) catalyst Mo/HZSM-5 are very hard to characterize, because they are present in various geometries and sizes and only form under reaction conditions with methane at 700 °C. To address these issues an experimental strategy is presented that enables distinguishing different active sites...
journal article 2019
document
Goetze, Joris (author), Yarulina, I. (author), Gascon Sabate, J. (author), Kapteijn, F. (author), Weckhuysen, Bert M. (author)
In small-pore zeolite catalysts, where the size of the pores is limited by eight-ring windows, aromatic hydrocarbon pool molecules that are formed inside the zeolite during the Methanol-to-Olefins (MTO) process cannot exit the pores and are retained inside the catalyst. Hydrocarbon species whose size is comparable to the size of the zeolite...
journal article 2018
document
Shan, M. (author), Liu, X. (author), Wang, X. (author), Yarulina, I. (author), Seoane de la Cuesta, B. (author), Kapteijn, F. (author), Gascon Sabate, J. (author)
The development of new membranes with high H<sub>2</sub> separation performance under industrially relevant conditions (high temperatures and pressures) is of primary importance. For instance, these membranes may facilitate the implementation of energy-efficient precombustion CO<sub>2</sub> capture or reduce energy intensity in other...
journal article 2018
document
Shan, M. (author), Seoane de la Cuesta, B. (author), Pustovarenko, O. (author), Wang, X. (author), Liu, X. (author), Yarulina, I. (author), Abou-Hamad, Edy (author), Kapteijn, F. (author), Gascon Sabate, J. (author)
The performance of mixed-matrix membranes (MMMs) based on Matrimid<sup>®</sup> and benzimidazole-linked polymers (BILPs) have been investigated for the separation CO<sub>2</sub>/N<sub>2</sub> and the dependency on the filler porosity. BILPs with two different porosities (BILP-101 and RT-BILP-101) were synthesized through controlling the...
journal article 2018
document
Vollmer, I. (author), van der Linden, B. (author), Ould-Chikh, Samy (author), Aguilar-Tapia, Antonio (author), Yarulina, I. (author), Abou-Hamad, Edy (author), Sneider, Yuri G. (author), Olivos Suarez, A.I. (author), Hazemann, Jean-Louis (author), Kapteijn, F. (author), Gascon Sabate, J. (author)
The mechanism of methane activation on Mo/HZSM-5 is not yet fully understood, despite the great interest in methane dehydroaromatization (MDA) to replace aromatics production in oil refineries. It is difficult to assess the exact nature of the active site due to fast coking. By pre-carburizing Mo/HZSM-5 with carbon monoxide (CO), the MDA active...
journal article 2018
document
Vollmer, I. (author), Li, G. (author), Yarulina, I. (author), Kosinov, N. (author), Hensen, Emiel J M (author), Houben, Klaartje (author), Mance, Deni (author), Baldus, Marc (author), Gascon Sabate, J. (author), Kapteijn, F. (author)
Although the local geometry of Mo in Mo/HZSM-5 has been characterized before, we present a systematic way to manipulate the configuration of Mo and link it to its catalytic properties. The location and geometry of cationic Mo-complexes, the precursor of the active metal site for methane dehydroaromatization, are altered by directing the way...
journal article 2018
document
Vollmer, I. (author), Yarulina, I. (author), Kapteijn, F. (author), Gascon Sabate, J. (author)
To secure future supply of aromatics, methane is a commercially interesting alternative feedstock. Direct conversion of methane into aromatics combines the challenge of activating one of the strongest C-H bonds in all hydrocarbons with the selective aromatization over zeolites. To address these challenges, smart catalyst and process design...
journal article 2018
document
Goetze, Joris (author), Meirer, Florian (author), Yarulina, I. (author), Gascon Sabate, J. (author), Kapteijn, F. (author), Martinez, Javier Ruiz (author), Weckhuysen, Bert M. (author)
The nature and evolution of the hydrocarbon pool (HP) species during the Methanol-to-Olefins (MTO) process for three small-pore zeolite catalysts, with a different framework consisting of large cages interconnected by small eight-ring windows (CHA, DDR, and LEV) was studied at reaction temperatures between 350 and 450 °C using a combination...
journal article 2017
document
Yarulina, I. (author)
doctoral thesis 2017
document
Yarulina, I. (author), Dikhtiarenko, A. (author), Kapteijn, F. (author), Gascon Sabate, J. (author)
Zeolites with DDR (Sigma-1 and ZSM-58) and CHA (SSZ-13) topology were synthesized by seed assisted and direct hydrothermal synthesis in order to investigate the effects of fast crystal growth on catalytic performance. Application of small amount of seeds (0.1% wt) significantly reduced synthesis time of all the studied zeolites. XRD and NH...
journal article 2017
document
Yarulina, I. (author), Kapteijn, F. (author), Gascon Sabate, J. (author)
Interpretation of catalytic performance during the MTH process is hampered by heat transport phenomena. We demonstrate that large temperature rises can occur during fixed bed labscale catalyst testing of ZSM-5, even when a large catalyst bed dilution is applied. Formation of mesopores in ZSM-5 leads to partial mitigation of these effects because...
journal article 2016
document
Yarulina, I. (author), Goetze, Joris (author), Gucuyener, C. (author), Van Thiel, Leonard (author), Dikhtiarenko, A. (author), Martinez, Javier Ruiz (author), Weckhuysen, Bert M. (author), Gascon Sabate, J. (author), Kapteijn, F. (author)
A systematic study of the effect of physicochemical properties affecting catalyst deactivation, overall olefin selectivity and ethylene/propylene ratio during the methanol-to-olefins (MTO) reaction is presented for two zeolites with the DDR topology, namely Sigma-1 and ZSM-58. Both catalysts show high selectivity towards light olefins and...
journal article 2016
document
Yarulina, I. (author), Goetze, J. (author), Gücüyener, C. (author), Van Thiel, L. (author), Dikhtiarenko, A. (author), Ruiz-Martinez, J. (author), Weckhuysen, B.M. (author), Gascon, J. (author), Kapteijn, F. (author)
A systematic study of the effect of physicochemical properties affecting catalyst deactivation, overall olefin selectivity and ethylene/propylene ratio during the methanol-to-olefins (MTO) reaction is presented for two zeolites with the DDR topology, namely Sigma-1 and ZSM-58. Both catalysts show high selectivity towards light olefins and...
journal article 2016
Searched for: author:"Yarulina, I."
(1 - 13 of 13)