Patent ID: 7785547

Claim:
An apparatus for increasing the concentration of recycled hydrogen in a high pressure hydrogenation unit comprising: a hydrocracking reactor and a high pressure separator, the outlet of the hydrocracking reactor being fluid-connected with the inlet of said high pressure separator, the outlet of said high pressure separator being fluid-connected with the inlet of said hydrocracking reactor forming a fluid flow-loop, wherein a hydration separation unit is provided in the path of the fluid flow from said high pressure separator to the hydrocracking reactor, said hydration separation unit having a hydration reactor for receiving a water-in-oil microemulsion wherein the light components of the hydrocracking products are combined in said water-in-oil microemulsion; and a hydrate decomposer being connected with said hydration reactor to form a fluid flow-loop and decomposing the light components from said microemulsion which combines with said light components; and said hydration reactor is constructed with a combination of a mist spray area and sieve plates area, and the upper part of said hydration reactor is the mist spray area which is equipped with a sprayer for spurting out the water-in-oil microemulsion and a set of serpentine cooling pipes, and the lower part of said hydration reactor is the sieve plate area equipped with multiple layers of sieve plates.