Back to results
US 12,281,064 B2Granted
Methods for dehydrogenation of perhydro-benzyltoluene
AssigneeChevron U.S.A. Inc.
InventorsChristopher Declan Lane, Steven Xuqi Song, Bi-Zeng Zhan, Trenton J. Otto, Michael J. Girgis, Yaofan Yi
Life of this patent
Estimating the term…
Abstract
Methods for dehydrogenation of perhydro-benzyltoluene are described. The representative two stage reaction processes described herein provide cost-effective high amount of conversion to hydrogen and/or other beneficial products.
Claims11
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.
3 more elements
Dependencies are inferred from the claim text.