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What is the difference between catalytic and chemical dehydrogenation of natural products? 

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Catalytic acceptorless dehydrogenation is an environmentally benign way to desaturate organic compounds.
In the ODH of isobutane, both dehydrogenation and regeneration of catalytic sites are relevant at the dicarbonyls, whereas regeneration is facile compared with dehydrogenation at quinones.
Catalytic dehydrogenation of feedstock chemicals, such as alcohols and amines to value-added products with the concomitant generation of dihydrogen is of much interest in the context of hydrogen economy and is an effective alternative to the classical oxidation reactions.
It has been found that oxidative catalytic dehydrogenation, that is, a process assisted by both a solid catalyst and a flow of oxygen gas, is most practical because of higher system longevity.
The coupling of catalytic dehydrogenation with selective oxidation of hydrogen allows one to design a process, which greatly improves equilibrium conversions while maintaining very high selectivity to olefin.
In all cases, the current efficiency of the products was much higher than 100%, indicating that the dehydrogenation reaction is catalytic.
Catalytic oxidative dehydrogenation of lower alkanes with CO2 is an attractive alternative for commercialized dehydrogenation processes not only due to its higher thermodynamic limit but also because it could help reduce anthropogenic CO2.
This phenomenon improved the catalytic performance, ensuring high selectivity, and durability for methylcyclohexane dehydrogenation.
Catalyst surface basicity and selectivityto dehydrogenation products appear to be closely related.
Furthermore, their excellent catalytic stability makes them isolable and reusable heterogeneous catalysts in the formic acid dehydrogenation.

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