Process for thermal conversion of hydrocarbons to aliphatic hydr

Details Process for thermal conversion of hydrocarbons to aliphatic hydr Process for thermal conversion of hydrocarbons to aliphatic hydr

1997-05-06

1999-11-02

Griffin, Walter D.

Mineral oils: processes and products

Chemical conversion of hydrocarbons

Plural serial stages of chemical conversion

208 48R, 208 67, 208 72, 208130, 585325, 585648, 585649, 585650, 585950, C10G 5102, C10G 916, C07C 404

Patent

active

059763523

ABSTRACT:
A continuous pyrolysis and decoking process and apparatus is described for the production of acetylenic compounds, in which hydrocarbons and steam are circulated in at least one tube (31) of a steam cracking reactor (30) and steam is circulated in at least one tube (32) of that reactor. The hydrocarbon effluent and steam then circulate in at least one row (1) of a pyrolysis reactor (40) and the decoking effluent comprising steam circulate in at least one other row (2) of that reactor (4) to effect decoking. A set of valves V1, V2, V11, V12 is used to alternate the pyrolysis step path and the decoking step path. The temperature in the steam cracking furnaces is lower than that in the pyrolysis reactor.

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patent: 5186815 (1993-02-01), Lenglet
patent: 5820747 (1998-10-01), Lenglet et al.
English language abstract of EP0733609, Sep. 1996.

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