ETHYLENE SYNTHESIS BY CATALYTIC OXIDATION METHANE OVER LI-DOPED MGO CATALYSTS - THE INTERACTION OF CATALYTIC AND NON-CATALYTIC REACTION STEPS
The oxidative coupling of methane to ethane and ethylene (C-2's) on lithium doped magnesia (Li/MgO) is carried out at reaction temperatures of 800circC. At these conditions the influence of non-catalytic reactions is investigated by varying the ratio of active catalyst to empty space in the reactor. At contact times shorter than 5 s there is no significant influence of non- catalytic reactions on the product selectivity. At longer contact times the post-catalytic space can benefit the ethylene yield by cracking of the ethane formed. However, it functions as an afterburner when oxygen is still present. The occurrence of the non-catalytic reactions has consequences for the reactor design.
Bibliographic Reference: 9TH INTERNATIONAL CONGRESS ON CATALYSIS, CALGARY, CANADA, JUNE 26, JULY 2, 1988, AVAILABILITY: CEC-LUXEMBOURG, DG-XIII/A2, BP 1907, MENTIONING PAPER ORA 33905 E
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Record Number: 1989126089700 / Last updated on: 1989-05-01
Available languages: en