Publication

The thermal bulk polymerization of styrene in a tubular reactor - reactor behavior and product properties

Albert Renken
1983
Conference Papers

Abstract

Thermal, bulk polymn. of styrene [100-42-5] in a pilot plant composed of a recycle tubular reactor for prepolymn. and a tubular reactor, entirely filled with static mixer elements, is discussed. Conversion in the prepolymn. reactor was 0-60% and at the outlet of the pilot plant ?96%. The residence time distribution showed low backmixing in the tubular reactor under a variety of conditions with respect to viscosity and d. gradients. Flow approached plug flow, with radical mixing complete and axial mixing negligible. The recycle ratio in prepolymn. was 10-80:1. At recycle ratio 10:1 and conversion 60%, the recycle section still behaved as an ideal, homogeneous, continuously-stirred tank reactor. The pilot plant gave polystyrene with mol. wt. ?360,000 and polydispersity comparative to com. samples. Pressure drop was studied for scaleup. [on SciFinder (R)]

Official source

https://infoscience.epfl.ch/entities/publication/928ef297-34f4-4c51-9850-0ab480a069eb

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Albert Renken
1983
Conference Papers

Abstract

Official source

https://infoscience.epfl.ch/entities/publication/928ef297-34f4-4c51-9850-0ab480a069eb

About this result

Related concepts (32)

Chemical reactor

A chemical reactor is an enclosed volume in which a chemical reaction takes place. In chemical engineering, it is generally understood to be a process vessel used to carry out a chemical reaction, which is one of the classic unit operations in chemical process analysis. The design of a chemical reactor deals with multiple aspects of chemical engineering. Chemical engineers design reactors to maximize net present value for the given reaction.

Breeder reactor

A breeder reactor is a nuclear reactor that generates more fissile material than it consumes. These reactors can be fuelled with more commonly available isotopes of uranium and thorium, such as uranium-238 or thorium-232, as opposed to the rare uranium-235 which is used in conventional reactors. These materials are called fertile materials since they can be bred into fuel by these breeder reactors. Breeder reactors achieve this because their neutron economy is high enough to create more fissile fuel than they use.

Plug flow reactor model

The plug flow reactor model (PFR, sometimes called continuous tubular reactor, CTR, or piston flow reactors) is a model used to describe chemical reactions in continuous, flowing systems of cylindrical geometry. The PFR model is used to predict the behavior of chemical reactors of such design, so that key reactor variables, such as the dimensions of the reactor, can be estimated.

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The thermal bulk polymerization of styrene in a tubular reactor - reactor behavior and product properties

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