Reactor and reactor system for high temperature and high pressure reactions

A reactor system for transferring heat energy from at least a first reactor to a second reactor, the reactor system comprising:

• the first and second reactors comprising:
• an outer reactor adapted for withstanding a reaction pressure and a reaction temperature, the outer reactor having a sealable reactor lid;
• an inner vessel within the outer reactor for containing a reaction solution and at least one reaction vessel, the inner vessel being open to the outer reactor such that the reaction pressure of the inner vessel and the outer reactor are substantially equalized and vapour in the inner vessel passes to the outer vessel, the inner vessel having a splatter shield for substantially preventing spillage of the reaction solution from the inner vessel into the outer reactor;
• a vapour injector in communication with the inner vessel for injecting vapour into the inner vessel for heating the reaction solution;
• an outer reactor outlet for draining a heating solution contained between the outer reactor and the inner vessel;
• an outlet in the outer vessel for exhausting vapour from the outer reactor and the inner vessel;
• and
• a manifold in communication with the outlet of each reactor and the vapour injector of each reactor for transferring vapour from the first reactor to the second reactor to heat the reaction solution.