| 摘要 |
1. Temperature-regulating process for the functioning of a reactor for exothermal, catalytic synthesis under pressure in gas phase, the catalytic zone of which containing at least two superimposed catalytic beds, and gas with an internal, vertical and axial circulation, whereby the fresh gas of the closed circuit is reheated by indirect exchange before the reaction with the gas leaving the last bed of the catalyst, and then successively with the gas leaving the penultimate bed of the catalyst, then with the gas leaving the antepenultimate bed of the catalyst, and thus up with the gas leaving the first bed of the catalyst, the indirect heat exchange being in counter-current in a thermal exchange zone with axial, internal circulation in the center of the catalytic zone, and whereby the fresh gas of the closed circuit being subdivided into a large number of flows circulating in the ascending direction along the entire length of the thermal zone, characterized in that one procedes with the direct introduction of a fraction of the gas leaving the first catalytic bed to the entrance of the second catalytic bed. |
