Pyrolysis of hydrocarbons

Unsaturated hydrocarbons are produced by incomplete combustion or pyrolysis in a vertically disposed furnace through which the gases travel downwardly and in which the walls are protected by a steam screen injected downwardly over the wall and progressively condensed on the wall to form a film of wa...

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Bibliographische Detailangaben
Hauptverfasser:	BRACONIER FREDERIC F. A, RIGA JEAN J. L. E
Format:	Patent
Sprache:	eng
Schlagworte:	ACYCLIC OR CARBOCYCLIC COMPOUNDS CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY CHEMICAL SURFACE TREATMENT CHEMISTRY COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATIONOR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL COATING MATERIAL WITH METALLIC MATERIAL COATING METALLIC MATERIAL CRACKING HYDROCARBON OILS DIFFUSION TREATMENT OF METALLIC MATERIAL FUELS INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL LUBRICANTS METALLURGY MINERAL WAXES MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLICMATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASSC23 AND AT LEAST ONEPROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25 NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE ORGANIC CHEMISTRY PEAT PERFORMING OPERATIONS PETROLEUM, GAS OR COKE INDUSTRIES PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVEHYDROGENATION, OLIGOMERISATION, POLYMERISATION RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, ORGASES REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS REFORMING OF NAPHTHA TECHNICAL GASES CONTAINING CARBON MONOXIDE THEIR RELEVANT APPARATUS TRANSPORTING
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Beschreibung
Zusammenfassung:	Unsaturated hydrocarbons are produced by incomplete combustion or pyrolysis in a vertically disposed furnace through which the gases travel downwardly and in which the walls are protected by a steam screen injected downwardly over the wall and progressively condensed on the wall to form a film of water by circulation of a cooling fluid round the external surface of the reactor walls. The steam is injected in an amount of 20-40 cubic metre per hour for each 100 mm. of the periphery of the wall and 10-20 litres of water are circulated as cooling fluid for each cubic metre of steam injected, the cooling water entering at 15-20 DEG C. and leaving at 65-70 DEG C. The Figure shows a reactor of the type described in Specification 855,523. Hydrogen and oxygen are injected by channels 9 and 10 and steam by channels 13 and 14. Hydrocarbon to be pyrolysed enters by inlets 16 and the steam screen by inlet 25. Cooling water enters jacket 22 by line 23 and leaves by line 24. Quenching liquid is injected through jets. 7. Specification 855,532 also is referred to.