Abstract:
The present disclosure relates in a broad form to a pseudo-isothermal flow reactor (100) for an exothermal reaction comprising at least two reaction enclosures (108, 114) and a cooling medium enclosure (102) configured to hold a cooling medium under pressure at the boiling point of said cooling medium, said reaction enclosures (108, 114) having an outer surface configured to be in thermal contact with the cooling medium, and each of said reaction enclosures (108, 114) having an inlet and an outlet with the associated benefit of enabling a two-stage pseudo-isothermal operation while only requiring a single cooling medium enclosure (102) and only single cooling medium circuit.
Abstract:
A burner with a plurality of oxidant gas pipes distributed throughout the cross section of the burner and process gas in plug flow provides even mixing of the oxidant and the process gas.
Abstract:
The invention relates to a boiling water reactor for an exothermal reaction. The reactor comprises reactant by-pass inserts arranged on top of the upper tube sheet to provide for a catalyst layer on top of the upper tube sheet and also a cooling stream of reactant by-passing the upper layer of catalyst and cooling the upper tube sheet from the temperature rise due to the exothermal reaction taking place in the upper layer of catalyst.
Abstract:
The present invention relates to a mixing device mounted between two catalyst beds in a multi-bed catalytic reactor with a cylindrical shape, said mixing device has a circular outer rim which corresponds to the inner wall of the reactor, the mixing device comprises; collecting means disposed in a collecting section for collecting fluid from an upstream catalytic bed, mixing means disposed in a mixing section for mixing the collected fluid, and discharging means disposed in a discharging section for discharging the mixed fluid to a down-stream catalytic bed; wherein the collecting section, the mixing section and the discharging section are disposed outside the center of the circular cross-section of the reactor, as well as associated methods for mixing and the use of such a mixing device in catalytic reactors.
Abstract:
The present invention relates to a mixing device mounted between two catalyst beds in a multi-bed catalytic reactor with a cylindrical shape, said mixing device has a circular outer rim which corresponds to the inner wall of the reactor, the mixing device comprises; collecting means disposed in a collecting section for collecting fluid from an upstream catalytic bed, mixing means disposed in a mixing section for mixing the collected fluid, and discharging means disposed in a discharging section for discharging the mixed fluid to a down-stream catalytic bed; wherein the collecting section, the mixing section and the discharging section are disposed outside the centre of the circular cross-section of the reactor, as well as associated methods for mixing and the use of such a mixing device in catalytic reactors.
Abstract:
A heat exchange reactor for carrying out endothermic or exothermic reactions comprising: a housing defining an external reactor wall (1), a plurality of heat transfer tubes (2) arranged within said housing for the supply or removal of heat in catalyst beds (3, 3') disposed at least outside (3) said heat transfer tubes (2), and built-in elements (4) disposed in the outer periphery of said catalyst bed (3).
Abstract:
The invention relates to a cooling medium reactor for an exothermal reaction. The reactor comprises reaction tube inserts arranged on top of the upper tube sheet to provide for a catalyst layer on top of the upper tube sheet and guide means of the inserts which thermally insulates the upper tube sheet from the exothermal reaction within the inserts.
Abstract:
The present invention relates to a mixing device mounted between two catalyst beds in a multi-bed catalytic reactor with a cylindrical shape, said mixing device has a circular outer rim which corresponds to the inner wall of the reactor, the mixing device comprises; collecting means disposed in a collecting section for collecting fluid from an up- stream catalytic bed, mixing means disposed in a mixing section for mixing the collected fluid, and discharging means disposed in a discharging section for discharging the mixed fluid to a down-stream catalytic bed; wherein the collecting section, the mixing section and the discharging section are disposed outside the center of the circular cross-section of the reactor, as well as associated methods for mixing and the use of such a mixing device in catalytic reactors.
Abstract:
The invention relates to a boiling water reactor for an exothermal reaction. The reactor comprises reactant by-pass inserts arranged on top of the upper tube sheet to provide for a catalyst layer on top of the upper tube sheet and also a cooling stream of reactant by-passing the upper layer of catalyst and cooling the upper tube sheet from the temperature rise due to the exothermal reaction taking place in the upper layer of catalyst.