| CPC C07C 5/367 (2013.01) [C07C 7/04 (2013.01)] | 11 Claims |
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1. A method for dehydrogenation comprising:
pre-heating perhydro benzyl-toluene (12H-BT);
co-feeding the pre-heated perhydro benzyl-toluene (12H-BT) with a gas comprising hydrogen into a fixed-bed reactor in a first-stage reactor wherein under conditions sufficient to produce at least a partially converted product mixture comprising 12H-BT, 6H-BT, 0H-BT, and hydrogen, wherein the amount of co-fed hydrogen is sufficient to reduce coke formation;
introducing at least a portion of the partially converted product mixture from the first-stage reactor into a second stage reactor comprising a gas-phase reactor and a distillation column at a temperature below the boiling point of 12H-BT and under gas-phase reactor conditions sufficient to produce a gas-liquid mixture comprising (1) a gas comprising hydrogen and (2) a liquid mixture comprising 12H-BT, 6H-BT, and 0H-BT;
removing a product comprising hydrogen product from second stage reactor and cooling the hydrogen product for compression; and
distilling the liquid in the distillation column to substantially separate 12H-BT, 6H-BT, and 0H-BT.
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