Method for synthesizing dihydromyrcene by performing catalytic cracking on pinane

The present invention discloses a process for catalytic cracking of Pinane synthesis of dihydro-myrcene, comprising the process steps: A), the vaporization pinane heated vaporizer; B), after pre-vaporized into the cracking tube pinane via conduit hot leg, and preheated in the preheating section; C), the preheated step B above preheating zone through the cracking tubes pinane, then enter the cracking zone of the cracking tube containing a catalyst cleavage, to give after lysis dihydro myrcene-based gaseous mixture of isomers; D), the above-described gaseous mixture of isomers in step C by the cooler into the receiving flask. The present invention improves the selectivity and conversion pinane cleaved by reducing cracking temperature increases the selectivity of dihydro-myrcene, reduce energy consumption.