The invention discloses an upstroke reaction steam stripping separator and a hydrogenation method. The reaction steam stripping separator comprises a
reaction zone and a
mass transfer separation zone, the
reaction zone and the
mass transfer separation zone are arranged in a same container shell body, the
reaction zone is arranged in the lower part, the
mass transfer separation zone is arranged in the upper part, an annular middle spacer plate and a manhole passage are arranged between the reaction zone and the
mass transfer separation zone, an annular space is formed by the middle spacer plate, manhole passage and container shell body, and the annular space is closed at the lower end and is provided with an opening at the upper end, and the
mass transfer separation zone is in the annular space. The method is as follows:
raw material oil and a part of
hydrogen enter from the bottom of the upstroke reaction steam stripping separator, the other part of the
hydrogen is injected from reaction zone catalyst
bed interlamination for
hydrogenation reaction in a reaction zone, a
gas phase product is collected at the top, and a
liquid phase product is collected at the side wall. According to the upstroke reaction steam stripping separator and the hydrogenation method, equipment investment and occupied area are reduced, the problem that many leakage points are produced for the reason that two independent equipment are connected by pipelines is reduced, and the device safety is improved.