| 摘要 |
Process and device for thermal conversion of methane into hydrocarbons of higher molecular weights, comprising a reactor (1) of elongate shape, connected, on the one hand, at a first end, to means for feeding (5) a gas mixture containing methane (process gas) and, on the other hand, at the other end, to means for discharging (10), the said reactor comprising, in a first part (first end side), a plurality of electrical heating means (3) surrounded by sheaths (4). These heating means, substantially parallel to each other, are arranged in sheets which are substantially parallel to each other and perpendicular to the axis of the reactor, so as to define, between the sheaths and/or between the sheaths and the walls (22) separating two consecutive sheets, spaces or passages for the circulation of the process gas and/or the effluents. These heating means are suitable for heating the said passages via independent successive cross-sections which are substantially perpendicular to the axis of the reactor. The reactor further comprises, in a second part (8) (opposite end side) which is contiguous with the first part, means for cooling (9) the effluents, connected to the means for feeding coolant fluid. The reactor also comprises means for introducing, at an appropriate pressure, a gas containing hydrogen into the space surrounding the heating means inside the sheaths (4). The design of the reactor and in particular of the sheaths (4) is such that hydrogen diffuses outwards from the inside of these sheaths, it being possible for this hydrogen to be then diluted in the process gas.
<IMAGE>
|
