Abstract: An apparatus, containing: (I) an inlet section into which a liquid and optionally a gaseous reagent stream is fed, the inlet section containing a device, which nebulizes and/or vaporizes the liquid stream, the device optionally utilizing vapor and/or a gaseous hydrocarbon stream as propellant; (II) a mixing section containing a chamber having a cylindrical or truncated-conical geometry, which mixes the reagent stream exiting the inlet section (I), to form a reaction mixture; (III) a reaction section including i) a first structured catalytic bed a ii) a structured catalytic bed heating device, in which the reaction mixture exiting the mixing section (II) flows through each layer of the first structured catalytic bed with a contact time varying from 0.01 to 10 ms, to produce a mixture of reaction products; and IV) a cooling section of the mixture of reaction products leaving the reaction section (III).

Abstract: A process is described for producing synthesis gas and hydrogen starting from liquid hydrocarbon feedstocks, possibly also mixed with gaseous hydrocarbon streams, comprising at least the following operations: 1) nebulizing/vaporizing a stream of a liquid hydrocarbon feedstock consisting of one or more of the following hydrocarbons: naphthas, various kinds of gas oils, such as LCO, HCO and VGO, other products of refining cycles and oil up-grading, such as DAO, other heavy residues, at a N temperature ranging from 50 to 500° C.