Apparatus for thermal cracking of or heating of hydrocarbons

Chemical apparatus and process disinfecting – deodorizing – preser – Chemical reactor – Including specific material of construction

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208 48AA, B01J 1902, C10G 912, C01G 916

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active

046923136

ABSTRACT:
In the thermal cracking of or heating of hydrocarbons, for example naphtha, a carbonization reaction incidentally takes place due to the fact that Ni, Fe and Co contained in, for example, the conduits of the thermal cracking apparatus have a catalytically carbonizing action. The aim of the present invention is to effectively suppress carbon deposition promoted by these elements, to provide for the incorporation of an inhibitor element, e.g. Li, Na, Ba, Be, Ca, Mg or their oxides, into the heat-resistant alloy, and to form on the surface of this alloy a carbon deposition suppressing layer which comprises an inhibitor element.

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patent: 2893941 (1959-07-01), Kohfeldt et al.
patent: 3353923 (1967-11-01), Peters
patent: 3617478 (1971-11-01), King, Jr. et al.
patent: 3827967 (1974-08-01), Nap et al.
patent: 3865753 (1975-02-01), Broecker et al.
patent: 3920572 (1975-11-01), King et al.
patent: 4361478 (1982-11-01), Gengler et al.

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