GB275663A - Improvements in the manufacture and production of liquid and other hydrocarbons and derivatives thereof by the destructive hydrogenation of carbonaceous materials - Google Patents

Abstract

275,663. I. G. Farbenindustrie Akt.- Ges. Aug. 7, 1926, [Convention date]. Hydrogenation, destructive.-In the destructive hydrogenation of carbonaceous materials the catalysts used consist of metals of the 5th group of the periodic system or their compounds together with magnesium or compounds thereof. A specified mixture is vanadium oxide with magnesia. Preferably a large excess of hydrogen in a circulatory system is used, and iron or other materials causing the formation of methane and separation of carbon are kept from contact with the hot reacting materials. The reacting materials may be atomized or sprayed or stirred, or the carbonaceous materials may be in thin layers, or the gas introduced through a porous plate or laver. The Specification as open to inspection under Sect. 91 (3) (a) describes the use as catalyst, of elements of groups 4-8 of the periodic system or their compounds, together with other elements of groups 2-7 or with copper or gold, or with compounds thereof and specifies the following further examples : equimolecular proportions of molybdic acid with magnesia, copper, or aluminium hydroxide, of tungstic acid with zinc oxide, or of vanadium oxide with magnesia; molybdic acid with 1C per cent of vanadium oxide, chromium oxide, uranium oxide, magnesium oxide, or thoria; tungstic oxide with about 10 per cent nf chromium oxide, or uranium oxide ; or cobalt with a. small amount of chromium oxide. This subject-matter does not appear in the Specification as accepted.