Abstract:
The invention relates to a method for producing chlorine by oxidising hydrogen chlorine in a gaseous phase by means of a gas flow containing molecular oxygen and in the presence of a fixed bed catalyst. Said invention is characterised in that the inventive method is carried out in a reactor (1) comprising a bundle of parallel contact tubes (2) disposed in a direction of the reactor length whose ends are fixed to a tube plate (3), a convex cover (4) arranged on each end of the reactor (1), one or several annular deflecting sheets (6) which are arranged in a perpendicular direction with respect to the direction of length of the reactor in a space (5) between the contact tubes (2) in such a way that circular passage openings (8) are formed in the middle of the reactor. The inventive reactor also comprises one or several deflecting discoidal sheets (7) disposed in such a way that annular passages (9) are formed on the edge thereof, said deflecting annular (6) and discoidal (7) sheets being arranged in an alternate manner. According to said invention, the contacting tubes (2) are filled with the fixed bed catalyst, hydrogen chlorine and the gas flow containing molecular oxygen are channelled from one end of the reactor to the contact tubes (2) by means of one of said convex covers (4), a reaction gaseous mixture is extracted at the level of the opposite end of the reactor by means of the second convex cover (4) and a fluid heat-exchanging agent is channelled to the interspace (5) encompassing the contact tubes (2).
Abstract:
The invention relates to a method for producing a gas flow comprising oxygen for the endothermic reaction of a starting flow, comprising one or more hydrocarbons, with a predefined concentration of oxygen and a predefined temperature, characterized in that a fluid fuel flow is burned with a primary air flow, with λ-values of the primary air flow to the fluid fuel flow ranging between 0.6 and 1.2, while preserving a combustion gas flow, and that a secondary air flow is mixed to the combustion gas flow, while preserving the gas flow comprising the oxygen for the endothermic reaction, wherein the volume flow and the temperature of the secondary air flow are used to adjust the predefined concentration of oxygen and the predefined temperature of the gas flow comprising the oxygen.
Abstract:
The invention relates to a reactor (1) for carrying out a continuous oxide hydrogenation of a feed gas flow (2) of saturated hydrocarbons, which has been previously mixed with a gas flow (3) containing oxygen, on a moving catalyst bed (4) arranged between two concentric cylindrical holding devices (5, 6) in the longitudinal direction of the reactor, leaving a central inner space (7) and an intermediate space (8) between the moving catalyst bed (4) and the inner envelope of the reactor, in order to obtain a reaction gas mixture. Said reactor (1) is characterised in that it comprises at least two reactor sections which are separated from each other and split into sub-sections by means of alternating disk-type deflector plates (10) arranged in the central inner space (7) and annular deflector plates (11) arranged in the intermediate space between the moving catalyst bed (4) and the inner envelope of the reactor. The reactor sections each comprise a mixing device (12) which is arranged in the direction of flow of the reaction gas mixture upstream of the moving catalyst bed (4), said mixing device being formed from the following elements: two or three successively arranged rows of tubes (13) comprising turbulence generators on the outer side thereof, which narrow the cross-section for the passage of the feed gas flow (2) to between 1/2 and 1/10 of the free cross-section, the oxygen-containing gas flow (3) being guided through the tubes and sprayed into the feed gas flow (2) through holes (14) in the tubes (13); in addition to a perforated plate (17) mounted upstream of the tubes (13); and a perforated plate (18) mounted downstream of the tubes (13).