Sabic Global Technologies B.v.

Ramsey Bunama

YongMan Choi

Khalid M El-Yahyaoui

Vinod Sankaran Nair

Arijit Ganguli

A process of catalytically dehydrogenating an alkane to an alkene, using CrOas a catalyst, where the catalyst is oxidized to CrOduring the dehydrogenation, and is regenerated by using CO as a reducing gas. In regenerating the catalyst with CO, COis produced, which may be fed to a dehydrogenation reactor with the alkane and reacted with Hproduced by the dehydrogenation, to form CO and HO by the reverse water-gas shift reaction.

Process for enhancing the performance of the dehydrogenation of alkanes

A fixed bed reactor for cyclic, catalytic dehydrogenation of hydrocarbons, such as alkanes and a reactor-internal device for improving distribution of hydrocarbon feed into the fixed catalyst bed of the reactor. The device comprises a vertical deflector plate with multiple horizontal slits and a frustum cone with multiple perforations on the lateral surface, connected to the bottom end of the plate. The reactor includes a main horizontal reaction vessel containing a fixed catalyst bed and a cactus-shaped inlet assembly sub-divided into three inlets at the upper half portion to supply fluid streams, including hydrocarbon feed, to the catalyst bed. The distributor device is positioned inside a main central vertical arm of the inlet assembly form by the convergence of the three inlets. Various embodiments of the distributor device where the slit thicknesses, distance between slits, perforation diameter, distance between perforations are varied, are also provided.

Reactors and reactor-internal devices for dehydrogenation of hydrocarbons

A process of catalytically dehydrogenating an alkane to an alkene, using CrOas a catalyst, where the catalyst is reduced concurrently with the dehydrogenation by using CO as a reducing gas. In reducing the catalyst with CO, COis produced, which may be reacted with Hproduced by the dehydrogenation, to form CO and HO by the reverse water-gas shift reaction. A Cu O heat-releasing material may be included with the catalyst in the reactor. The CO reducing gas reduces CuO to form Cu and CO, releasing heat. The COproduced by reducing the Cu O may also be reacted with Hproduced by the dehydrogenation, to form CO and HO by the reverse water-gas shift reaction.

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Riyadh, Saudi Arabia

Ramsey Bunama