IMPROVED DOUBLE BOND HYDROISOMERIZATION PROCESS
A process and apparatus are disclosed for hydroisomerizing a mixed C4 olefin stream in a fixed bed hydroisomerization reactor in order to increase the concentration of 2-butene and minimize the concentration of 1 -butene, while concurrently minimizing the production of butanes. In one embodiment, ca...
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Format: | Patent |
Sprache: | eng ; spa |
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Zusammenfassung: | A process and apparatus are disclosed for hydroisomerizing a mixed C4 olefin stream in a fixed bed hydroisomerization reactor in order to increase the concentration of 2-butene and minimize the concentration of 1 -butene, while concurrently minimizing the production of butanes. In one embodiment, carbon monoxide is introduced into the double bond hydroisomerization reactor along with hydrogen. In another embodiment, hydrogen, and optionally also carbon monoxide, are introduced at multiple locations along the length of the double bond hydroisomerization reactor. The invention is particularly useful in preparing C4 feed streams for metathesis reactions.
Un proceso y aparato se describen para hidroisomerizar una corriente de C4 olefinas mixtas en un reactor de hidroisomerizacion de lecho fijo a fin de incrementar la concentracion de 2-buteno y minimizar la concentracion de 1-buteno, mientras que se minimiza concurrentemente la produccion de butanos. En una modalidad, se introduce monoxido de carbono en el reactor de hidroisomerizacion de doble enlace junto con hidrogeno. En otra modalidad, se introducen hidrogeno y opcionalmente tambien monoxido de carbono en multiples sitios sobre la longitud del reactor de hidroisomerizacion de doble enlace. La invencion es particularmente util para preparar corrientes de alimentacion C4 para reacciones de metatesis. |
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