Steam reforming hydrocarbons

Hydrocarbon steam reforming process and apparatus wherein blind ended, ie double pass, externally heated reformer tubes (52) are employed. The inner, ie return, tubes (80) are insulated so that there is only a small temperature drop between the reacted gas leaving the catalyst zone (90) and entering...

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Bibliographische Detailangaben
Hauptverfasser:	ANDREW, SIDNEY PERCY SMITH, LIMBACH, ANTONY PETER JOHN, DOY, RALPH JONES
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY CHEMISTRY COMPOUNDS THEREOF FUELS INORGANIC CHEMISTRY LUBRICANTS METALLURGY NON-METALLIC ELEMENTS PEAT PERFORMING OPERATIONS PETROLEUM, GAS OR COKE INDUSTRIES PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL PURIFYING OR MODIFYING THE CHEMICAL COMPOSITION OF COMBUSTIBLEGASES CONTAINING CARBON MONOXIDE TECHNICAL GASES CONTAINING CARBON MONOXIDE THEIR RELEVANT APPARATUS TRANSPORTING
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Beschreibung
Zusammenfassung:	Hydrocarbon steam reforming process and apparatus wherein blind ended, ie double pass, externally heated reformer tubes (52) are employed. The inner, ie return, tubes (80) are insulated so that there is only a small temperature drop between the reacted gas leaving the catalyst zone (90) and entering the return tubes (80) and the gas leaving the return tubes (80). The outer, blind-end, tubes (52) preferably have fins (54) and are surrounded by sheaths (56) through which the heating medium passes. The heating medium is preferably hot gas obtained by subjecting the primary reformed gas to secondary reforming.