Oxidative dehydrogenation of ethylbenzene under industrially relevant conditions: on the role of catalyst structure and texture on selectivity and stability

Valeriya Zarubina

Oxidatieve dehydrogenering van ethylbenzeen onder industrieel relevante omstandigheden: effect van de structuur en textuur van katalysatoren op selectiviteit en stabiliteit

Valeriya Zarubina

Chemische Technologie

Onderzoeksoutput

14566 Downloads (Pure)

Samenvatting

Styreen (ST), een belangrijk chemisch product voor bijvoorbeeld het maken van polystyreen (piepschuim), wordt industrieel geproduceerd door middel van de directe dehydrogenering van ethylbenzeen (EB) behulp van stoom bij 580-630 °C. Het proces heeft een hoog energieverbruik en een lage reactor conversie vanwege chemische evenwicht beperkingen. Er wordt nog steeds veel onderzoek en ontwikkeling gedaan om te komen tot verbeterde styreen productie processen. Een voorbeeld is de oxidatieve dehydrogenering van EB. Echter, het proces wordt nog niet commercieel uitgevoerd en verder onderzoek en ontwikkeling op het gebied van de heterogene katalyse en proces technologie is noodzakelijk.
In dit onderzoek is gekeken naar de ontwikkeling van verbeterde heterogene katalysatoren op basis van commerciële dragers zoals alumina, silica, aluminosilicaat, zeolieten, en koolstof gebaseerde materialen voor de oxidatieve dehydrogenering van ethylbenzeen tot styreen onder industrieel relevante omstandigheden. Hierbij lag de nadruk op het verbeteren van de styreen selectiviteit en de katalysator stabiliteit en het bepalen van katalysator-proces relaties. Er zijn verbeterde katalysatoren geïdentificeerd en er is een beter begrip verkregen van de werking van de katalysatoren.

Vertaalde titel van de bijdrage	Oxidatieve dehydrogenering van ethylbenzeen onder industrieel relevante omstandigheden: effect van de structuur en textuur van katalysatoren op selectiviteit en stabiliteit
Originele taal-2	English
Kwalificatie	Doctor of Philosophy
Toekennende instantie	Rijksuniversiteit Groningen
Begeleider(s)/adviseur	Heeres, Hero, Supervisor Melian Cabrera, Ignacio, Co-supervisor
Datum van toekenning	27-mrt-2015
Plaats van publicatie	[S.l.]
Uitgever	[S.n.]
Gedrukte ISBN's	978-90-367-7691-2
Elektronische ISBN's	978-90-367-7690-5
Status	Published - 2015

Toegang tot document

Title and contents Final publisher's version, 436 KB
Chapter 1 Final publisher's version, 898 KB
Chapter 2 Final publisher's version, 1,15 MB
Chapter 3 Final publisher's version, 2,1 MB
Chapter 4 Final publisher's version, 1,14 MB
Chapter 5 Final publisher's version, 1,74 MB
Chapter 6 Final publisher's version, 829 KB
SummaryFinal publisher's version, 82,7 KB
Summary in Dutch Final publisher's version, 72 KB
Краткое изложениеFinal publisher's version, 86,3 KB
AcknowledgmentsFinal publisher's version, 157 KB
List of PublicationsFinal publisher's version, 248 KB
Conference ProceedingsFinal publisher's version, 237 KB
Curriculum VitaeFinal publisher's version, 120 KB
Complete dissertationFinal publisher's version, 8,65 MB
PropositionsFinal publisher's version, 146 KB

Citeer dit

@phdthesis{c5f5bc058fba4968ad9c69c6b0cea3cf,

title = "Oxidative dehydrogenation of ethylbenzene under industrially relevant conditions: on the role of catalyst structure and texture on selectivity and stability",

abstract = "Styrene (ST), an important bulk chemical for amongst others polystyrene production, is industrially produced by the direct dehydrogenation of ethylbenzene (EB) using steam at 580-630 °C. The process suffers from high energy consumption and low conversion per pass because of equilibrium limitations. As such, there is an on-going effort to identify improved styrene production processes. An example is the oxidative dehydrogenation process. However, commercial operation has not been realised yet and considerable research and development activities are required in the field of heterogeneous catalysis engineering. The general aim of the research described in this thesis is to develop improved heterogeneous catalysts based on commercial supports such as aluminas, silicas, alumina-silicas, zeolites, and carbon-based materials for the oxidative dehydrogenation of ethylbenzene to styrene under industrially relevant conditions. The main purpose is to improve styrene selectivity and stability, and to establish structure-performance relationships. New catalysts with improved performance have been identified and a better understanding of the key features of the catalysts has been established.",

author = "Valeriya Zarubina",

year = "2015",

language = "English",

isbn = "978-90-367-7691-2",

publisher = "[S.n.]",

school = "University of Groningen",

}

TY - THES

T1 - Oxidative dehydrogenation of ethylbenzene under industrially relevant conditions

T2 - on the role of catalyst structure and texture on selectivity and stability

AU - Zarubina, Valeriya

PY - 2015

Y1 - 2015

N2 - Styrene (ST), an important bulk chemical for amongst others polystyrene production, is industrially produced by the direct dehydrogenation of ethylbenzene (EB) using steam at 580-630 °C. The process suffers from high energy consumption and low conversion per pass because of equilibrium limitations. As such, there is an on-going effort to identify improved styrene production processes. An example is the oxidative dehydrogenation process. However, commercial operation has not been realised yet and considerable research and development activities are required in the field of heterogeneous catalysis engineering. The general aim of the research described in this thesis is to develop improved heterogeneous catalysts based on commercial supports such as aluminas, silicas, alumina-silicas, zeolites, and carbon-based materials for the oxidative dehydrogenation of ethylbenzene to styrene under industrially relevant conditions. The main purpose is to improve styrene selectivity and stability, and to establish structure-performance relationships. New catalysts with improved performance have been identified and a better understanding of the key features of the catalysts has been established.

AB - Styrene (ST), an important bulk chemical for amongst others polystyrene production, is industrially produced by the direct dehydrogenation of ethylbenzene (EB) using steam at 580-630 °C. The process suffers from high energy consumption and low conversion per pass because of equilibrium limitations. As such, there is an on-going effort to identify improved styrene production processes. An example is the oxidative dehydrogenation process. However, commercial operation has not been realised yet and considerable research and development activities are required in the field of heterogeneous catalysis engineering. The general aim of the research described in this thesis is to develop improved heterogeneous catalysts based on commercial supports such as aluminas, silicas, alumina-silicas, zeolites, and carbon-based materials for the oxidative dehydrogenation of ethylbenzene to styrene under industrially relevant conditions. The main purpose is to improve styrene selectivity and stability, and to establish structure-performance relationships. New catalysts with improved performance have been identified and a better understanding of the key features of the catalysts has been established.

M3 - Thesis fully internal (DIV)

SN - 978-90-367-7691-2

PB - [S.n.]

CY - [S.l.]

ER -