摘要:
A reactor (1) for carrying out exothermic or endothermic heterogeneous reactions comprising an outer shell (2) of substantially cylindrical shape and at least a heat exchanger (9) embedded in a catalytic layer (10) supported in said shell (2), is characterised in that the heat exchanger (9) is a plate (14) heat exchanger.
摘要:
A process for the heterogeneous synthesis of chemical compounds such as methanol and ammonia through catalytic conversion of the respective gaseous reactants that are made to pass through a first (2) and a second (3) reaction zone connected in series with each other, in which they react in pseudoisothermal conditions, distinguishes itself in that in the first reaction zone (2) the gaseous reactants are made to flow through a fixed mass of an appropriate catalyst in which a plurality of substantially box-like, plate-shaped heat exchangers (21), arranged side-by-side and crossed by a heat exchange operating fluid, is dipped.
摘要:
Method for carrying out in continuous, under so-called pseudo-isothermal conditions and in a predetermined reaction environment, such as a catalytic bed, a selected chemical reaction, comprising the steps of providing in the reaction environment at least one heat exchanger fed with a first flow of a heat exchange operating fluid at a respective predetermined inlet temperature, the fluid passing through at least one heat exchanger according to a respective inlet/outlet path, which method also provides feeding into at least one heat exchanger and at one or more intermediate positions of said path, a second flow of operating fluid having a respective predetermined inlet temperature.
摘要:
A reactor (1) for carrying out exothermic or endothermic heterogeneous reactions comprising an outer shell (2) of substantially cylindrical shape and at least a heat exchanger (9) embedded in a catalytic layer (10) supported in said shell (2), is characterised in that the heat exchanger (9) is a plate (14) heat exchanger. The plates of the heat-exchanger are removable.
摘要:
A process for carrying out mass transfer between a liquid phase (Fl) and a gaseous phase (Fg) in a filled-type column comprising an outer shell (2) in which at least one basket (3a,3b) is housed for containing the filling crossed by said phases is distinguished in that it comprises the step of subjecting said liquid phase (Fl) and said gaseous phase (Fg) to an indirect heat exchange (21) in said at least one basket (3a,3b) through at least one heat exchanger (21) embedded in said filling. In such a way increased mass transfer efficiency between the aforementioned phases is achieved with the consequent possibility of reduction of the size of the column intended to carry out such a process.
摘要:
Pseudo-isothermal chemical reactor (1) for catalytic reactions with a vertical axis (A-A') comprising a substantially cylindrical shell (2), closed at the opposite ends by upper (4) and lower (3) bottoms respectively, a reaction zone (8) in which a catalytic bed (11) and a plurality of flat, boxed, plate-shaped heat exchangers (12), having the shape of a parallelepiped and having long sides (20) parallel to said vertical axis (A-A') and short sides (21) perpendicular to it, situated in said reaction zone and supported in an arrangement on parallel cords (22,23,24,25,26,27) at a predetermined distance.
摘要:
Method for carrying out in continuous, under so-called pseudo-isothermal conditions and in a predetermined reaction environment, such as a catalytic bed, a selected chemical reaction, comprising the steps of providing in the reaction environment at least one tubular heat exchanger fed with a first flow of a heat exchange operating fluid at a respective predetermined inlet temperature, the fluid passing through the at least one tubular heat exchanger according to a respective inlet/outlet path, which method also provides the step of feeding into the at least one tubular heat exchanger and at one or more intermediate positions of said path, a second flow of operating fluid having a respective predetermined inlet temperature.
摘要:
Heat exchange unit (1) of the so-called multiservice type comprising a substantially cylindrical shell (2) closed at the opposite ends by respective base plates (3,4), a plurality of heat exchangers (13) supported inside this shell (2) and in fluid communication with the outside thereof.
摘要:
A heat exchange unit for axial and radial pseudo-isothermal reactors which comprise a substantially cylindrical shell (2) closed at the opposite ends by base plates (3, 4), a reaction zone (6) containing a catalytic bed and at least one heat exchanger (11) of the type with a plate having a variable section along the direction of the flow of operating heat exchange fluid.