| 摘要 |
A reactor for heterogeneous synthesis of chemical compounds, in particular methanol, comprises:
- a substantially cylindrical shell (12) closed at the opposite ends by respective bottoms (14, 16);
- at least one first, adiabatic, catalytic bed (25, 26, 27) having a substantially annular section, coaxially supported inside the shell (12) in an upper portion (20) of the shell, the at least one catalytic bed (25, 26, 27) having an inlet side (25a, 26a, 27a) for the reagent gases or for a reaction mixture, and an outlet side (25b, 26b, 27b) for the reaction mixture,
- a second, pseudo-isothermal, catalytic bed (31) having a substantially annular section, supported inside the shell (12) in a lower portion (21) of the shell, coaxially positioned with respect to the at least one first catalytic bed and at a pre-determined distance therefrom, said second catalytic bed having an inlet side for a reaction mixture coming from the at least one first catalytic bed (25, 26, 27) and an outlet side for gaseous reaction products;
- a plurality of heat exchangers (45) supported and distributed in a respective annular portion of the second catalytic bed (31), the heat exchangers (45) being flown by a heat exchanger operating fluid. |
