Concept

Styrene

Related publications (39)

Reactor performance enhancement under periodic operation for the ethanol dehydration over gamma-alumina, a reaction with a stop-effect

The possibility of enhancing reactor performance under forced cycling of the inlet feed was investigated for the ethanol to ethene dehydration reaction over gamma-alumina. This reaction presents a stop-effect, i.e. a drastic increase of the reaction rate f ...

1999

Homochiral Matching in the Diels-Alder Clyclodimerization 2-Vinyl-7-Oxabicyclo[2.2.1]Hept-2-Ene Derivatives

Pierre Vogel

Racemic 6-vinyl-7-oxabicyclo[2.2.1]hept-5-en-2-one, 5-vinyl-7-oxabicyclo[2.2.1]hept-5-en-2-one and their ethylene acetals undergo highly stereoselective Diels-Alder cyclodimerizations. The optically pure semicyclic dienes give the corresponding optically p ...

1994

Styrene-maleic anhydride copolymerization in a recycle tubular reactor: reactor stability and product quality

Albert Renken, Thierry Meyer

A tubular recycle reactor was developed to ensure good homogeneity of concn. and temp. in the copolymn. of styrene and maleic anhydride. The compn. of the copolymer obtained is in good agreements with predicted values and the uniformity of compn. was measu ...

1994

Dynamic kinetics of catalytic dehydrogenation of methanol to formaldehyde

Albert Renken, Harvey Randall

Methanol dehydrogenation to formaldehyde was operated in a continuous fixed-bed reactor with external recycling in the presence of sodium carbonate catalyst supported on active carbon. Due to the importance of gas phase decompns. of methanol and mainly for ...

1994

Characterization of segregation in a tubular polymerization reactor by a new chemical method

Albert Renken, Thierry Meyer

Micromixing in a tubular polymn. reactor is characterized by the mol. wt. of polystyrene obtained in the presence of a chain transfer agent. Monomer and the transfer agent are fed sep. into the reactor. For const. overall inlet concns., the mean mol. wt. p ...

1990

Sodium compounds as catalysts for methanol dehydrogenation to water-free formaldehyde

Albert Renken

Catalysts based on alkali compds. were active in the dehydrogenation of MeOH in absence of O. Na2CO3 doped with In showed a selectivity of ?75% for MeOH conversion ?60%. [on SciFinder (R)] ...

1990

Chemical and structural changes of sodium molybdate (Na2MoO4) as a methanol dehydrogenation catalyst

Albert Renken, Philippe Buffat

Sodium salts such as Na2CO3 and Na molybdate are active and selective MeOH dehydrogenation catalysts for the prodn. of water-free HCHO. Profound chem. and structural changes are experienced by the molybdate when employed under normal reaction conditions (5 ...

1990

Bulk polymerization of styrene in a static mixer

Albert Renken

The thermal, bulk polymn. of styrene is conducted in a pilot plant consisting of a recycle tubular reactor followed by a tubular reactor. The conversion of the pre-polymn. part is in the range of 0 to 60% and at the outlet of the pilot plant ?96%. Studies ...

1985

Reactor for continuous polymerization in a high viscosity medium

Albert Renken

The title reactor, of simple construction and suppressing segregation and overheating, consists of a tube filled with static mixing elements, sepd. into a 1st segment which is sepd. by a recirculating pump from the 2nd and 3rd segments, which form a piston ...

(Sulzer, Gebr., A.-G., Switz.).1983

Graph Chatbot

Chat with Graph Search

Ask any question about EPFL courses, lectures, exercises, research, news, etc. or try the example questions below.

DISCLAIMER: The Graph Chatbot is not programmed to provide explicit or categorical answers to your questions. Rather, it transforms your questions into API requests that are distributed across the various IT services officially administered by EPFL. Its purpose is solely to collect and recommend relevant references to content that you can explore to help you answer your questions.