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6. Technological evolution and economic context
The major recent developments have been in improving yields and increasing unit size: the latter is a step in the direction of greater plant profitability, but it is not without its pernicious effects, which we'll come back to later.
6.1 Technological evolution
Advances in metallurgy have led to a new generation of tubes, increasing their diameter at furnace outlet, with a number of advantages, including:
Reduced pressure drop and therefore partial pressure of hydrocarbons;
reduction in the number of furnace outlet tubes and quenching boilers;
increased residence time without loss of selectivity ;
doubling of...
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Technological evolution and economic context
References
Thesis
- - http://www.sudoc.abes.fr
- KARA (F.) - Contribution de la simulation dynamique à l'étude du vapocraquage des hydrocarbures en réacteur tubulaire. Application au N-Hexadecane - (1998).
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Heurtey Petrochem (under license...
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