To provide a reactor which maintains a high reaction rate and a high catalytic efficiency over the entire volume of a catalyst bed by regulating the temperature of an exothermic reaction along the longitudinal direction of the reactor.
A conversion method comprises a step wherein a flow rich in a gaseous reactant at a feed material temperature is introduced into a heat-exchange passage within a heat-exchange reaction zone to pre-heat the reactant-rich flow to an inlet temperature, a step wherein the reactant-rich flow pre-heated to the inlet temperature is introduced into a countercurrent catalyst-containing reaction passage to exothermally convert the reactant gas to a product gas and to form a mixture rich in the reactant gas and the product gas, a step wherein the heat from the reaction passage is indirectly transferred to the heat-exchange passage at a rate effective for keeping the gas mixture at a temperature lower than the equilibrium temperature, and a step wherein an outflow rich in the product gas is recovered from an outlet of the reaction passage at an outflow temperature.
MANN DAVID P
PISUT ANANT
| JP2004168651A | 2004-06-17 | |||
| JPS63248431A | 1988-10-14 | |||
| JPS4215683B1 | ||||
| JPS4848384A | 1973-07-09 | |||
| JPS5357193A | 1978-05-24 |
Hajime Asamura
Yukihiro Ikeda
Naganuma Akio