Hydrogen storage technology using liquid organic hydrogen carrier(LOHC) is a safe and economical way to achieve hydrogen storage and transportation

and its large-scale utilization is of great significance to promote the clean and efficient use of fossil energy and ensure energy security. However

the dehydrogenation of LOHC is a process where the large amounts of heat is needed and a huge volume of gas is produced by chemical reaction between liquid and solid. How to design an efficient dehydrogenation reactor to optimize heat and mass transfer has become one of the key issues that seriously restrict the development of LOHC. Therefore

different types of dehydrogenation reactors are summarized and the current development of the technology is analyzed. In addition

the advantages/disadvantages and the applicable conditions of suspended

fixed

and monolithic catalysts

membrane reactors are compared. At last

the existing problems of the dehydrogenation reactor are discussed and an outlook on the future development for the next research has been prospected.